Crude Oil Hits Ceiling as Hedgefunds Attack Euro
Labels: energy economics, oil
Labels: energy economics, oil
Labels: Nuclear Energy
Sridhar (in the video and earlier in the day) also explains how Bloom may enhance the fuel cell in the future for a push into the domestic market in about a decade and the enhancement represents both a step forward and a step back. Carbon dioxide and water are byproducts of the gas-to-electricity reaction. By adding some additional "plumbing" components, the fuel cell can capture the water, run it through the fuel cell later and produce hydrogen. Hydrogen could then be stored until needed to power a car or provide electricity to a home.If Bloom Energy has solved some of the harder problems of fuel cells -- as Sridhar claims -- we may be seeing some disruptive new technology coming from the company. Up to this point, we seem to be seeing what is in many ways a better fuel cell.
The water-to-hydrogen reaction will require additional electricity. Bloom suggests that solar panels can provide this power. Although the fuel cell could do this reaction now, Bloom isn't putting in the components because the market isn't ready, said Sridhar. So having a path to energy storage: a step forward.
So what is the step back? Bloom's patents discuss taking both the carbon dioxide and hydrogen, running them through the fuel cell and producing a methane-like fuel. _GreenTechMedia
Labels: fuel cells
Enerkem uses a thermochemical gasification process to produce a uniform syngas, which is subsequently converted into liquid fuels, such as ethanol, as well as biochemicals. The technology is able to process diverse carbon-based feedstocks, including sorted municipal solid waste, construction and demolition wood, as well as agricultural and forest residues. Enerkem’s technology can convert one tonne of raw material (dry base) into 360 liters (95 gallons) of cellulosic ethanol.This Biofuels Digest story provides a projection of the near-term growth in biofuels production across an array of approaches. Includes an interesting graph.
Enerkem’s gasification technology is based on a bubbling fluidized bed reactor with a front-end feeding system that is capable of handling fluffy material with no need to pelletize it. Slurries or liquids can also be fed into the gasifier through appropriately designed injectors. The gasification is carried out using air as a partial oxidation agent or using oxygen-enriched air, with the oxygen-enrichment level tailored to the desired composition of the synthetic gas. The presence of steam at a specific partial pressure is also part of the process...
...Waste Management, based in Houston, Texas, is the leading provider of comprehensive waste management services in North America. The investment in Enerkem complements Waste Management’s comprehensive waste services in the areas of recycling, landfill, waste-to-energy and landfill gas-to-energy. _GCC
Labels: biofuel, BTL, garbage energy, gasification, thermochemical
Recent developments in supercomputing have enabled the TerraPower scientists to simulate the traveling wave concept and establish its feasibility, they say.Ultra-sophisticated computer modeling supports the theory behind TerraPower's traveling wave reactor approach to use nuclear waste as fuel. Of course, TerraPower's main backer -- Nathan Myhrvold -- was formerly the chief technology officer for Microsoft, so he should know something about computers and computer modeling. It is good to remember that computer modeling has been an extremely potent tool for many areas of science and engineering. We should not allow the perversion of modeling by alarmist climatologists to taint the entire enterprise.
Machiels agrees. "The modeling capability that John Gilleland's team has achieved has allowed a lot of progress. They have fantastic computing capabilities," he said. The team's supercomputer cluster has more than 1,000 times the computational strength of a desktop computer, TerraPower says.
The team draws on support from MIT, DOE's Argonne National Laboratory and other scientific centers, and future testing will require more DOE support. But at this point, the project is a private research venture.
It recalls the famous Tuxedo Park laboratory established by the millionaire investor and amateur scientist Alfred Lee Loomis at his mansion outside New York City in 1926. Its scientists went on to provide critical research in the development of radar and the atomic bomb in World War II.
"This is a type of work that requires a deep, deep pocket," said Machiels. "The fact that this is being funded now by a private firm is good, but very unusual." TerraPower is backed by Nathan Myhrvold, Microsoft's former chief technology officer, who now is CEO of Intellectual Ventures. _NYT
This reactor (pdf) works something like a cigarette. A chain reaction is launched in one end of a closed cylinder of spent uranium fuel, creating a slow-moving "deflagration," a wave of nuclear fission reactions that keeps breeding neutrons as it makes way through the container, keeping the self-sustaining reaction going.When computer modeling works, it is because the researchers involved are honest enough to test the models against physical observations -- rather than the other way around, as in the climate science of carbon hysteria.
And it goes and goes, perhaps for 100 years, said former Bechtel Corp. physicist John Gilleland. He heads TerraPower LLC, a private research team based outside Seattle that is pursuing the traveling wave reactor design.
"We believe we've developed a new type of nuclear reactor that can represent a nearly infinite supply of low-cost energy, carbon-free energy for the world," Gilleland said in a presentation.
...In the traveling wave reactor, the fuel, initially, is likely to be the vast U.S. stores of depleted uranium, which don't themselves pose a proliferation risk. Plutonium is formed in the reaction process but undergoes transmutation into other elements and is essentially consumed. Depleted uranium is a heavy, lead-like residue from making or enriching uranium fuel. Lacking the volatile isotope U-235 that is used in conventional nuclear power plant fuel and nuclear weapons, depleted uranium is currently used for conventional anti-tank ammunition and in the keels of sailboats. _NYT
Labels: Nuclear Energy, transmutation
Castaldi and Butterman used a range of carbon dioxide (0 percent to 100 percent) and steam mixtures on about 50 different kinds of biomass, finding that between 25 percent and 40 percent carbon dioxide seemed optimal, depending on the process and desired end product. “Adding much more than 40 percent carbon dioxide in that process is only adding a diluent,” he says. Feedstocks such as beach grass, pine needles, poplar wood and municipal solid waste, along with coal, were gasified at temperatures of 25 to 1,000 degrees Celsius (77 to 1,832 degrees Fahrenheit) at rates of 1 to 100 degrees Celsius per minute in the range of carbon dioxide/steam mixtures, according to the study.
The increased efficiency occurs for two reasons. The first is because of carbon dioxide’s reactivity. “If it’s not reactive enough, like the steam, you form a residual that is very, very low in surface area, that’s nonporous,” Castaldi says. “And what happens is, as it reacts, it becomes more and more difficult to react.” He compares the reaction to a sponge, saying it’s crucial to absorb the reactive medium all the way through, not just on the surface. Steam reacts mostly on the surface, densifying the biomass and preventing it from absorbing more steam. But the carbon dioxide reacts at the right amount to not only continuously react with the biomass, but to keep pores open or even open them further, he says. The carbon dioxide enables the biomass to keep its sponge-like quality, or porosity, while steam collapses those pores, he says.
Another reason that carbon dioxide increases biomass gasification efficiency is the increased occurrence of the water-gas shift reaction: water and carbon monoxide reacting to form hydrogen and carbon dioxide. It works like this: as the mixture of steam and carbon dioxide goes over the biomass and gasifies it, the carbon dioxide reacts more than the steam, which means there is steam present that is not reacting with solid biomass, Castaldi explains. It’s left in the gas phase and as the carbon dioxide gasifies the biomass and makes carbon monoxide, that carbon monoxide goes into the gas phase and reacts with water via the water-gas shift reaction. The reaction is exothermic, meaning it releases heat, and the steam the carbon dioxide leaves behind increases that heat release, thereby increasing occurrence of the entire reaction, he says. “A system using carbon dioxide needs less energy because there’s an exothermic reaction that’s a little more engaged,” he says. The process does not use all carbon dioxide, Castaldi says, but about 30 percent. “It turns out that the energy needed to create syngas from steam and biomass is nearly equal to making syngas using all carbon dioxide and biomass,” he says of the reaction. But the difference is in the heat release.
In addition, some of the carbon dioxide input—between 20 percent and 50 percent of that 30 percent—is actually converted into carbon monoxide, Castaldi says. “So now I’m introducing a sufficient quantity of carbon dioxide that causes the process to actually utilize a good portion of it,” he says.
In this process, the input of carbon dioxide determines the ratio of hydrogen to carbon monoxide in the syngas. With more carbon dioxide, the ratio goes down, increasing carbon monoxide and decreasing hydrogen. Tweaking input can make desirable syngas compositions for different processes, such as turbine combustion, special chemicals production, Fischer-Tropsch for diesel fuels, and others, Castaldi says. _BiomassMag
Labels: carbon dioxide, gasification
The General Atomics reactor, which is dubbed EM2 for Energy Multiplier Module, would be about one-quarter the size of a conventional reactor and have unusual features, including the ability to burn used fuel, which still contains more than 90% of its original energy. Such reuse would reduce the volume and toxicity of the waste that remained. General Atomics calculates there is so much U.S. nuclear waste that it could fuel 3,000 of the proposed reactors, far more than it anticipates building...The project is expected to be hung up by the US Nuclear Regulatory Commission's huge and growing backlog for certifying safer, cheaper, more reliable nuclear reactors.
...The EM2 would operate at temperatures as high as 850 degrees Centigrade, which is about twice as hot as a conventional water-cooled reactor. The very high temperatures would make the reactor especially well suited to industrial uses that go beyond electricity production, such as extracting oil from tar sands, desalinating water and refining petroleum to make fuel and chemicals. _WSJ
Labels: nuclear power
Aijaz Baig and Flora Ng developed a single-step solid acid-catalyzed process for the production of biodiesel from high FFA feedstocks. The solid acid catalyst based on a supported heteropolyacid catalyst (PSA) was evaluated for the production of biodiesel from soybean oil (SBO) containing up to 25 wt% palmitic acid (PA). This solid acid catalyst catalyzed simultaneously esterification (the reaction of fatty acids with methanol in the presence of an acid catalyst and water to produce biodiesel) and transesterification (the reaction of triglycerides with methanol in the presence of a catalyst to produce biodiesel).
The palmitic acid was converted to biodiesel with 95% conversion using the solid acid catalyst (PSA), and the soybean oil was successfully transesterified with 99% CBG (chemically bound glycerin) conversion.
The solid acid catalyst was used for simultaneous esterification and transesterification of soybean oil containing 10% PA, achieving more than 95% conversion of palmitic acid and 99% conversion of soybean oil. Analysis based on the ASTM D 974, ASTM D 6584, and EN 14103 standards confirmed the production of high-purity biodiesel from feedstock with high FFA content. _GCC
Genencor, a division of Danisco A/S, introduced Accellerase DUET at the Renewable Fuels Association’s 15th Annual National Ethanol Conference last week in Orlando, Fla. This product is the latest generation in the company’s line of enzymes used to convert biomass into sugars, for subsequent production into cellulosic ethanol and other advanced biofuels.This news follows an earlier announcement by Novozymes regarding a new generation of cellulose converting enzymes.
With improved overall hemicellulase activity, Accellerase DUET builds on the advances in beta-glucosidase and cellulase activity previously made by Accellerase 1500. These additional improvements allow Accellerase DUET to achieve higher sugar and biofuel yields, often at 3-fold lower dosing, and to be feedstock- and pretreatment- flexible. _GCC
In the UK, Green Biologics has updated the Digest on its efforts to develop as an industrial biotechnology company producing advanced fermentation technologies converting waste and by-products (eg molasses from sugar refineries) into renewable fuels and chemicals. GBL focuses on the production of bio-butanol. The technology is based on advanced microbes together with novel butanol fermentation and high efficiency separation processes.
GBL recently expanded its business in China, where it is working with two biobutanol producers to provide step change improvements in their process economics; GBL is introducing improved microbial and process technology to existing plant facilities radically reducing the cost of biobutanol production; converting them from corn feedstock to molasses and eventually to bio-waste cellulosic feedstocks readily available in China. _BiofuelsDigest
Labels: biofuel
What should our New York State and local leaders do? First, we could embrace clean coal technology. We make this too expensive by requiring carbon sequestration, a process by which carbon dioxide is recaptured and piped many miles away and stored underground. The green bent of our government mandates this incredibly expensive process in spite of all the controversy with global warming or in its newest guise, climate change.Unfortunately for the writer of the editorial, there is indeed a logical explanation why electricity in New York State and in other regions gored by green politics. Logically, green political activists wish to suppress economic growth. They believe that by doing so, they will take pressure off the environment.
The Marcellus Shale discovery is one of the most significant natural gas discoveries ever. Ohio, Pennsylvania and West Virginia share this bounty with New York State. While those states enjoy the benefits of this discovery, we have our Department of Environmental Conservation figuring out how we can responsibly harvest this natural gas. Couldn’t we duplicate what’s being done in our neighboring states?
Lastly, we’re within 30 miles of one of the most successful hydroelectric plants in the world, the Niagara Power Project. Commercial customers such as One HSBC Center are legislatively excluded from accessing this very clean and cheap source of power. Instead we’re looking to invest a portion of the almost $300 million of annual profits from the Niagara Power Project in alternative energy sources. The plan is to place scads of windmills in lakes Erie and Ontario. If a static Peace Bridge design can be foiled by a bird, good luck winning over environmentalists and recreational boaters with this one!
There is no logical explanation why our electricity should cost 50 percent to 70 percent more than the national average. Regional assets like abundant hydropower and natural gas are denied us by our legislators and governor. The cost of electricity should be significantly less, not increasing.
_BuffaloNews
Labels: carbon dioxide, coal, faux environmentalism, natural gas
These electrodes provide high electrochemically accessible surface areas and fast redox-mediated electron transfer, which significantly enhances thermocell current generation capacity and overall efficiency. The team showed efficiency of thermocells with MWNT electrodes to be as high as 1.4% of Carnot efficiency—3-fold higher than for previously demonstrated thermocells.
Research on utilizing low-grade heat from sources such as industrial waste streams, geothermal activity, and solar heating has focused on using solid-state thermoelectrics and Stirling engines to harvest low-grade waste heat as electrical energy. However, the researchers note, despite much progress over the past decades, current thermoelectric energy conversion technology is not very cost-effective and is constrained by physical and material limitations, while Stirling engine technology is disadvantaged by high initial cost and problems with long-term reliability.
...Hu et al. developed carbon nanotube (CNT)-based thermocells that utilize the ferri/ferrocyanide redox couple and electrodes made from carbon-multiwalled nanotubes (MWNT) buckypaper and vertically aligned MWNT arrays. The buckypaper is made by a filtration process that is analogous to that used for making ordinary paper.
They found that the performance of MWNTs as thermocell electrodes supersedes that of conventional electrode materials, including platinum foil and graphite sheet. With a hot-side temperature of 65 °C and a temperature difference of 60 °C, they achieved a maximum output power of 1.8 W/m2 in a stagnant cell, corresponding to an efficiency relative to the Carnot cycle efficiency of 1.4%. _GCC
Pursuant to the work order, Cyclone will be developing preliminary designs, specifications and test parameters on a compact 10 hp (7.5 kW) external combustion engine for use in various power applications.The US defense department is also looking into using the Cyclone engine to power autonomous robots that would be capable of powering themselves from biomass and other waste carbons.
The proposed Cyclone engine would be designed to run on both traditional fuels and a monopropellant called Moden Fuel, which can combust in the absence of oxygen. (Moden Fuel was originally developed by James R. Moden, Inc. to power US Navy torpedoes.)_GCC
Labels: heat recovery
By adding a catalyst to the coal gasification system, GreatPoint Energy is able to reduce the operating temperature in the gasifier, while directly promoting the reactions that yield methane, (CH4). Under these mild catalytic conditions, less expensive reactor components are required, pipeline grade methane is produced, and very low cost carbon sources (such as lignites, sub-bituminous coals, tar sands, petroleum coke and petroleum resid) can be used as feedstocks.Although hydrogen is an inferior fuel, it is quite useful in chemical processes of various types -- including the production of superior fuels using biomass, coal, and other carbon sources.
Because hydromethanation is a catalytic process that does not rely on combustion, it does not produce the nitrogen oxide (NOx), sulphur oxide (SOx) and particulate emissions typically associated with the burning of carbon feedstock. Instead, the process captures nearly all of the impurities found in coal, petroleum coke and biomass and converts them into valuable chemical-grade byproducts.
The first step in the hydromethanation process is to combine the catalyst with the feedstock in such a way as to ensure that the catalyst disperses throughout the matrix of the feedstock for effective reactivity. The catalyst/feedstock material is then loaded into the hydromethanation reactor.
Inside the reactor, pressurized steam is injected to “fluidize” the mixture and ensure constant contact between the catalyst and the carbon particles. In this environment, the catalyst facilitates multiple chemical reactions between the carbon and the steam on the surface of the coal or biomass.
Compared to more conventional approaches to gasification and SNG production, the bluegas process eliminates the need for an external water gas shift reactor, a methanation reactor, and air separation plant.
The hydrogen will be used for industrial applications or combusted to generate near-zero carbon electricity. The SNG can be transported in the existing pipeline infrastructure and used as fuel in home heating, power plants or industrial processes. _GCC
Labels: coal, hydrogen, industrial chemicals, methane
Small reactors which are smaller than a rail car and cost one tenth the cost of a big plant, could attract more investors as many see the massive investments in a nuclear reactor as a hindrance to enter into the business as the risk is too high if the project fails or gets delayed. Also, the fact that these small reactors have in-house waste storage capability for their lifetime i.e. a period of 60 years, and that they do not need to be near water sources as they could also be air-cooled, make them attractive for customers. Experts also believe that these small reactors should be safer than the larger ones as they are simpler and have fewer moving parts that can fail. _ SourceWhile President Obama is making loud noises about government backed loans for building a new nuclear plant, he is -- as usual -- barking up the wrong tree. If Obama were serious about developing new nuclear energy sources in the US, he would immediately set about to streamline the onerous regulatory process which makes it almost impossible to license newer, safer, more economical nuclear reactor designs.
Labels: nuclear power
GE Hitachi Nuclear Energy, one of the world's biggest providers of nuclear reactors, says it has an alternative to burying nuclear waste at Yucca Mountain in Nevada, the proposed waste repository that the Obama administration has said is now "off the table." Based in Wilmington, NC, GE Hitachi wants to use nuclear waste as a fuel for advanced nuclear power plants, significantly reducing the volume of waste and the length of time that most of the waste needs to be stored.
National labs in the United States and GE have been developing the technology over the course of a few decades, but in recent years the company "put it on the shelf" because of a lack of U.S. interest in reusing nuclear waste, says Eric Loewen, chief consulting engineer for advanced plants at GE Hitachi. The technology involves separating nuclear waste into different types of useable fuel, some of which can power conventional nuclear power plants, and some of which require advanced "fast neutron" reactors, which are being used in power plants elsewhere but not in the United States. _TechnologyReview
Labels: Nuclear Energy, nuclear waste
Using arrays of long, thin silicon wires embedded in a polymer substrate, a team of scientists from the California Institute of Technology (Caltech) has created a new type of flexible solar cell that enhances the absorption of sunlight and efficiently converts its photons into electrons. The solar cell does all this using only a fraction of the expensive semiconductor materials required by conventional solar cells. _ScienceDailyThe Caltech scientists have reportedly exceeded the conventional light-trapping limit of absorptive materials.
Professor Dawn Bonnell the director of the Nano/Bio Interface Center at the University of Pennsylvania and her colleagues have demonstrated the transduction of optical radiation to electrical current in a molecular circuit. The system uses an array of nano-sized molecules of gold that respond to electromagnetic waves by creating surface plasmons to induce and project electrical current across molecules, similar to that of photovoltaic solar cells. _NewEnergyandFuelThis approach is unique in that the hardware acts as an electromagnetic "antenna" for photons. It is worth reading Brian's article in full to understand how this approach is different from traditional photovoltaics. The authors suggest that their approach may eventually lead to a significant price breakthrough in solar electricity.
The cells designed by Solasta are built on a substrate forested with long, thin, vertically arrayed nanopillars. The pillars are coated first with metal, then with a thin layer of semiconducting material such as amorphous silicon, and then with a layer of transparent conductive oxide. Though the silicon layer is thin, a photon still has a relatively long path to travel down the length of the nanopillars, and a good chance of transferring its energy to an electron. Freed electrons then travel perpendicularly over a very short path to the metal at the core of each pillar, and shimmy down this electrical pole off the cell. "Electrons never have to travel through the photovoltaic material," says Zhifeng Ren, professor of physics at Boston College. "As soon as they're generated, they go into the metal." Ren founded Solasta with professors Michael Naughton and Krzysztof Kempa. _TechnologyReviewThis approach is traditional photovoltaics, but in 3 dimensions. Increasing the surface area allows for more incident photon absorption.
Labels: solar energy
Gazprom started coal-bed methane production in Russia after U.S. success in developing unconventional fuel reserves spurred global interest.The rush for development of Gazprom's unconventional gas follows recent Gazprom claims that "shale gas production may be environmentally hazardous." Hint hint, wink wink to US environmental organisations. In other words, Gazprom wants US shale gas to be shut down, and it wants to use US environmental groups as its cats' paws. Nothing new there. In the past it was the KGB doing similar things. The names of organisations change, but the people stay the same.
Gazprom plans to produce 1.5 billion cubic meters of the gas a year in 2012 at the Taldinskoye field in Siberia’s coal-rich Kuzbass area, the Kremlin press service said Friday in a statement distributed to reporters during President Dmitry Medvedev’s visit to the region.
Successful extraction of shale gas, another unconventional fuel, has led to what International Energy Agency chief economist Fatih Birol called “a silent revolution” in the United States. The world’s biggest energy consumer, the United States may become self-sufficient in gas through its shale-gas developments. Unconventional fuels had been too complex to develop until new technologies made extraction feasible.
Russia, which holds the largest gas reserves, may have as much as 87 trillion cubic meters of coal-bed methane, according to Gazprom chief executive Alexei Miller.
“It’s two Gazproms,” Medvedev said in Omsk, where he met with businesses to discuss innovation in the energy industry, which he said accounts for as much as one third of the country’s gross domestic product.
Coal-bed methane, shale gas and tight gas are the most common unconventional sources of the fuel and currently account for about half of U.S. production, said Valery Nesterov, an analyst with Troika Dialog. Unconventional gas won’t make up more than 0.5 percent of output in Russia in the long term, he said.
“It is more about technology, so as not to fall behind" as we did with liquefied natural gas, he said.
Russia last year started liquefying gas, more than a decade after Qatar, the world’s biggest LNG producer.
The world may see an “acute glut” of gas because unconventional fuel output worldwide is set to rise 71 percent between 2007 and 2030, the IEA said in November.
Unconventional gas competes with coal in thermal power generation and will be displacing the commodity from global markets, Vekselberg said.
Russia may produce as much as 21 billion cubic meters a year of coal-bed methane at Kuzbass, Gazprom said Friday.
“We have made an important step on the path toward a new subindustry in Russia’s fuel and energy complex,” Gazprom’s Miller said in an e-mailed statement.
The company plans to drill 30 wells at Taldinskoye this year, and 28 a year starting in 2011, the Kremlin said.
Russian coal-bed methane resources make up one-third of the country’s potential gas resources, Gazprom said in an e-mailed statement. The Kuzbass area of the Kemerovo region may hold 13 trillion cubic meters of the unconventional gas, the Kremlin said.
The United State’s success in extracting gas from shale has spurred global interest, while also displacing some LNG supplies and lowering spot prices in Europe.
Europe and China are playing catch-up, which could increase competition for LNG, Mark Greenwood, a Sydney-based analyst with JPMorgan Chase, said in a Feb. 9 note.
“U.S. shale gas could grow by 2015 to a similar scale as the entire global LNG market currently,” Greenwood said. “A land-grab has occurred in Europe over the last two years” as international companies such as Exxon Mobil, ConocoPhillips, Chevron Corp. and Statoil seek resources. _MoscowTimes
Wave of the future: Unlike today’s reactors, a traveling-wave reactor requires very little enriched uranium, reducing the risk of weapons proliferation. The reactor uses depleted-uranium fuel packed inside hundreds of hexagonal pillars (shown in black and green). In a “wave” that moves through the core at only a centimeter per year, this fuel is transformed (or bred) into plutonium, which then undergoes fission. The reaction requires a small amount of enriched uranium (not shown) to get started and could run for decades without refueling. The reactor uses liquid sodium as a coolant; core temperatures are extremely hot--about 550 ºC, versus the 330 ºC typical of conventional reactors. TechReview
Enriching the uranium for reactor fuel and opening the reactor periodically to refuel it are among the most cumbersome and expensive steps in running a nuclear plant. And after spent fuel is removed from the reactor, reprocessing it to recover usable materials has the same drawbacks, plus two more: the risks of nuclear-weapons proliferation and environmental pollution.
These problems are mostly accepted as a given, but not by a group of researcher s at Intellectual Ventures, an invention and investment company in Bellevue, WA. The scientists there have come up with a preliminary design for a reactor that requires only a small amount of enriched fuel--that is, the kind whose atoms can easily be split in a chain reaction. It's called a traveling -wave reactor. And while government researchers intermittently bring out new reactor designs, the traveling-wave reactor is noteworthy for having come from something that barely exists in the nuclear industry: a privately funded research company.
As it runs, the core in a traveling- wave reactor gradually converts nonfissile material into the fuel it needs. Nuclear reactors based on such designs "theoretically could run for a couple of hundred years" without refueling, says John Gilleland, manager of nuclear programs at Intellectual Ventures.
Gilleland's aim is to run a nuclear reactor on what is now waste. Conventional reactors use uranium-235, which splits easily to carry on a chain reaction but is scarce and expensive; it must be separated from the more common, nonfissile uranium-238 in special enrichment plants. Every 18 to 24 months, the reactor must be opened, hundreds of fuel bundles removed, hundreds added, and the remainder reshuffled to supply all the fissile uranium needed for the next run. This raises proliferation concerns, since an enrichment plant designed to make low-enriched uranium for a power reactor differs trivially from one that makes highly enriched material for a bomb.
But the traveling-wave reactor needs only a thin layer of enriched U-235. Most of the core is U-238, millions of pounds of which are stockpiled around the world as leftovers from natural uranium after the U-235 has been scavenged. The design provides "the simplest possible fuel cycle," says Charles W. Forsberg, executive director of the Nuclear Fuel Cycle Project at MIT, "and it requires only one uranium enrichment plant per planet." _TR
Labels: Nuclear Energy
Labels: energy economics, oil
A major objective: an end-to-end system, based on fast pyrolysis, that would produce 1/3 renewable gasoline, 1/3 renewable diesel and 1/3 renewable jet fuel from Mississippi’s trees and waste forest biomass.
Working with an named early-stage renewable fuels developer based in Mississippi, the SERC group is now commencing development of a 10,000 square foot pilot facility that will test out the process they have been perfecting in the lab. Development of the facility, under a team led by SERC professor Phil Steele, could be finished within a year. Along with Envergent — a joint venture of UOP and Ensyn — and Dynamotive, the SERC project is at the forefront of a remarkable resurgence of pyrolysis over the past few years as an advanced biofuels processing technology aimed at drop-in renewable fuels. SERC’s advantages — high yield and an end-to-end process for creating biooil from forest products via pyrolysis, then upgrading bio-oil to drop-in renewable fuels via hydroprocessing to add more hydrogen.__BiofuelsDigestIn fact, improved methods of creating fuels and energy from wood may be the salvation of forestry industries across North America.
Labels: pyrolysis
Gates said he is backing development of "terrapower" reactors that could be fueled by nuclear waste from disposal facilities or generated by today's power plants.
He broke down variables in a carbon-dioxide-culprit formula, homing in on a conclusion that the answer to the problem is a source of energy that produces no carbon.
...Gates touted terrapower as more reliable than wind or solar, cleaner than burning coal or natural gas, and safer than current nuclear plants.
"With the right materials approach it could work," Gates said. "Because you burn 99 percent of the waste, it is kind of like a candle."
Nuclear waste fed into a terrapower reactor would potentially burn for decades before being exhausted.
"Today we are always refueling the reactor so lot of controls and lots of things that can go wrong," Gates said. "That is not good. With this, you have a piece of fuel, think of it like a log, that burns for 60 years and it is done."
Researching and testing terrapower will cost hundreds of millions of dollars, with the building of a test reactor likely to cost in the billions. Once the technology is proven, market forces will drive down costs, Gates predicted.
Work on terrapower [has] been done in France and Japan, and there has been interest in India, Russia, China and the United States, according to the famed philanthropist.
Gates said that if he were allowed a single wish in the coming 50 years, it would be a global "zero carbon" culture.
"If I could pick a president or a vaccine, which I love, this is the wish I would pick," he said.
"We need energy miracles. The microprocessor and Internet are miracles. This is a case where we have to drive and get the miracle in a short time-line."
As it runs, the core in a traveling-wave reactor gradually converts nonfissile material into the fuel it needs. Nuclear reactors based on such designs "theoretically could run for a couple of hundred years" without refueling, says John Gilleland, manager of nuclear programs at Intellectual Ventures.
Gilleland's aim is to run a nuclear reactor on what is now waste. Conventional reactors use uranium-235, which splits easily to carry on a chain reaction but is scarce and expensive; it must be separated from the more common, nonfissile uranium-238 in special enrichment plants. Every 18 to 24 months, the reactor must be opened, hundreds of fuel bundles removed, hundreds added, and the remainder reshuffled to supply all the fissile uranium needed for the next run. This raises proliferation concerns, since an enrichment plant designed to make low-enriched uranium for a power reactor differs trivially from one that makes highly enriched material for a bomb.
But the traveling-wave reactor needs only a thin layer of enriched U-235. Most of the core is U-238, millions of pounds of which are stockpiled around the world as leftovers from natural uranium after the U-235 has been scavenged. The design provides "the simplest possible fuel cycle," says Charles W. Forsberg, executive director of the Nuclear Fuel Cycle Project at MIT, "and it requires only one uranium enrichment plant per planet."_ TechnologyReview
Labels: Nuclear Energy
Labels: energy news
In 1971, the demand for oil was at 49.4billion barrels per year[??AF: million barrels per day?] and world reserves were estimated to hold 521 billion barrels, according to the US department of energy. According to the theories of the oil pessimists, this would mean that the world would be out of oil in a little more than a decade. Instead of facing doom in the 1980s as the depletionists predicted, the amount of oil in reserves increased to approximately 700 billion barrels as demand increased. Since 1971, when reserves held 521 billion barrels, the world has consumed 900 billion barrels of oil, and today, reserves are currently at an estimated 1.36 trillion barrels.
As the petroleum geologist Peter R Odell put it, “if anything, the world is running into oil”. Just look at last week’s discovery of oil in Dubai. Estimating that only 1.5 per cent of the Earth’s total physical resource base has been used since 1860, the Intergovernmental Panel on Climate Change (IPCC) declared that since fossil fuels are in abundance, they would not impose limits on carbon emissions during the 21st century.
Labels: peak oil
HTL is based on the time-tested concept of thermal cracking and carbon rejection. The key innovation is speed - HTL incorporates ultra short processing times compared with significantly longer times for conventional technologies such as delayed coking. HTL has the added advantage over coking technologies in that it converts by-product coke to on-site energy, instead of incurring the costs of accumulating and managing large stockpiles of low value coke. HTL upgrading does not require catalysts, hydrogen or significant pressure. The net result is relatively small scale, low cost facilities that can be field located where energy and other heat integration benefits are maximized. _Ivanhoe
The HTL process represents the application of a commercially-proven technology to a new feedstock. The technology initially was developed in the 1980s by a predecessor company of a private, Ottawa-based company called Ensyn Corporation. Ensyn has been applying its RTP technology (the biomass equivalent of HTL) on a commercial basis since 1989. Seven commercial Ensyn biomass processing facilities are in operation in the United States and Canada.
...In late-2004, Ensyn commissioned the 1,000-barrel-per-day Commercial Demonstration Facility (CDF) in the Belridge heavy-oil field in Southern California. The purpose of the CDF was to confirm product quality and yields in a significantly scaled-up facility. Numerous successful runs were carried out in the period beginning in 2005 and through mid-2007, culminating in the successful processing of Athabasca bitumen in mid-2007.
In 2005, Ivanhoe completed a merger with Ensyn Group Inc. and now has full control of the patented, proprietary upgrading technology for the development of heavy oil. Ensyn Corporation retains the rights to biomass applications.
Ivanhoe now is working with AMEC, its tier one contractor, on the design and engineering of full-scale HTL facilities related to the commercial initiatives under way.
_Ivanhoe
Labels: oil production, oil sands
Big Oil may actually win the fight to stop using food crops with low-yields per acre, and help the transition to high-yield low carbon emission sources. The industry has invested over a billion dollars in advanced biofuels, algal fuel, and biotech ventures. _SeekingAlphaWhen big oil companies invest $billions in biofuels, they are not doing it to waste money. Big oil doesn't want to see the big agriculture companies like ADM steal fuel profits with ethanol from corn. So, the newer biofuels will not be made from corn or food crops, but from waste and biomass.
Exxon Mobil’s CEO Rex Tillerson famously referred to ethanol as “moonshine.” Now Exxon is investing $300 million in Craig Ventor’s Synthetic Genomics with plans to produce fuel from algae. BP Biofuels was voted 2009 Biofuels Corporation of the Year by the World Refining Association at its 4th annual Biofuels Conference. BP has poured hundreds of millions into basic biofuel research and into a variety of partnerships including biobutanol with DuPont (DD) and Virgin Fuels, and energy cane in the U.S. with Verenium (VRNM) . Shell (RDS.A) has established a $12 billion sugarcane ethanol joint venture with Brazil’s Cosan (CZZ).
In the future, if biotech can deliver low-cost liquid hydrocarbons from biomass that can be profitably blended at the refinery, then Big Oil may partner with industrial agriculture. Valero (VLO), the largest refiner in the U.S., bought a number of ethanol plants at deep discounts from bankrupt VeraSun.
For now, both the petroleum producers and industrial agriculture want to control EPA regulation, federal tax breaks, and billions of federal funds. They also want greenhouse gas emissions measured their way. If growing more corn for ethanol and soy for biodiesel leads to rainforests being destroyed, then Big Oil favors that being included in biofuel emission lifecycle analysis. Big Ag is against such land-use analysis. See: Argonne Lifecycle Presentation, California Lifecycle with Land-use Studies, Renewable Fuels Standard. _SeekingAlpha
Labels: bioenergy
Among the many determinants of risk bonds, the price of oil is a key factor as it plays a significant role in economic growth, inflation, production costs, trade balances and currency. Nine of the ten economic recessions in the United States since the end of World War II were preceded by a dramatic increase in the price of oil. _DianChuOil prices are extremely volatile, as Chu points out. Swings in oil prices have consequences for oil producers and oil consumers. Nations that are both oil consumers and producers -- such as the US, Canada, Brazil, and China -- can benefit from swings in either direction. Unfortunately for Venezuela, Iran, Russia, and the other oil tyrannies, they lose a great deal with each downward swing.
In addition to the United States, GDP growth in Brazil, China and India could get a boost from the softening and stabilizing of oil prices and should increase their competitiveness. Brazil and Chindia are all oil producers with aggressive state-sponsored exploration and production efforts and strong economic growth prospects. Brazil, with a new and improved investment grade credit rating, is now largely self-sufficient and has insulated its economy from oil price shock on net basis.Russia is hoping for big upward swings in oil prices -- that may be the only thing that can save the corrupt kleptocracy [redundancy alert!]. All of the oil dictatorships are desperate for higher oil prices -- by any means necessary. Well, almost. Iran wouldn't approve its own destruction, even though that would certainly drive oil prices higher.
The economic impact of oil prices on oil-importing, developing countries such as China and India could be more pronounced primarily because Chindia are more energy-intensive due to its strong growth rate, and less energy efficient. From that perspective, Chindia, though good prospects, could be more of a roller-coaster ride for investors.
Among the emerging economies, lower crude oil prices will be a big dampener for the Russian economy. Russia's two oil wealth funds declined by a total $1.54 billion over the last month, as more funds were transferred to aid federal budget shortfalls. The Reserve Fund, one of Russia’s two oil wealth funds, is expected to run out by the end of 2010. _DianChu
Labels: energy economics, oil prices
...when looking ahead more than four years, almost all oil price forecasts over the past 40 years have been wrong, according to Dr Ole Gunnar Austvik, the head of research at Lillehammer University College in Norway.Yes, it is a simple idea, easy to grasp, easy to hold ... and hold ... and hold .... in fact, some people have been holding on for forty or fifty years now and show no sign of tiring. Any day now, you'll see, it's all going to fall apart . . . .
As it turns out, the flawed forecasts all predicted upwards price trends, whereas inflation-adjusted oil prices actually fell for two decades from the early 1980s.
It was only over the past decade that a seven-year price rally challenged that. A related question, now that oil prices have crashed and partially rebounded, is whether some of the old forecasts are about to be vindicated, or whether the current period of price volatility will run its course, eventually leaving crude lower.
The perennial popularity of forecasts projecting crude prices rising indefinitely reflects the intuitive appeal of the “Peak Oil” theory, which predicts that global oil production will reach a maximum rate and then inexorably decline.
Everyone can grasp the seductively simple hypothesis, which encapsulates deep-rooted insecurities over energy supply. Surely everyone must understand that oil is a geologically scarce resource that must one day run out. _National
Labels: Oynklent Green, peak oil