Bioenergy

ARPA-E awards Honeywell and DuPont to develop algae technologies for biodiesel and biobutanol
Green Car Congress | 2 March 2010
Abstracted on: 5 March 2010

Two awards by the U.S. Department of Energy's ARPA-E program for high-risk, high-payoff technologies to Honeywell's UOP (Des Plaines, Illinois) and DuPont (Wilmington, Delaware) are highlighting the growing presence of major chemical-process companies in the fledgling algae industry:

1. UOP, a Honeywell company, has been awarded a $1.5 million grant to design cost-effective and efficient equipment to capture carbon dioxide from the exhaust stacks at Honeywell's caprolactam manufacturing facility in Hopewell, Virginia. The CO2 will be delivered to an open-pond algae cultivation system where the algae will feed on the nitrogen in the plant's wastewater. The system will use an automated control system from Honeywell Process Solutions, and technology from New Zealand's Aquaflow Bionomic Corp. (Nelson). The algal will be harvested, and oil extracted; algae residues will be heated into pyrolysis oil.

The project will evaluate UOP/Eni's Ecofining process to produce a drop-in hydrocarbon diesel fuel from the algae, and the rapid thermal processing (RTP) technology from Envergent Technologies, a joint venture between UOP and Ensyn Corp. The RTP system can be used to convert waste algae biomass into pyrolysis oil.

2. For DuPont, the $8.8-million award1 will help demonstrate the company's macroalgae to isobutanol process. Bio Architecture Lab (Berkeley, California), a subrecipient of the program, will help develop biofuels and renewable chemicals from aquafarmed, native macroalgae (seaweed), which is a low cost, scalable and sustainable biomass. The goal is improve macroalgae aquaculture, convert the macroalgae to bio-available sugars, and process those sugars to isobutanol. More than 60 scientists will be involved in the effort.

Butamax Advanced Biofuels LLC, a joint venture between DuPont and BP, will be responsible for commercialization.

  1. 1. Green Car Congress: ARPA-E Awards $8.8M to DuPont and BAL for Macroalgae to BioButanol Work
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Read the original story at Green Car Congress: Honeywell’s UOP Awarded DOE Funding for CO2 Capture And Nitrogen Wastewater Reduction Through Algae Growth for Biofuels and Energy | 2010-03-02 | | Reading time: <10 min | Site access: Open | Rights: Copyright
Butalco's genetically modified yeasts to produce cellulosic ethanol from both C5 and C6 sugars
Ethanol Producer Magazine | 3 March 2010
Abstracted on: 4 March 2010

Butalco GmbH (Zug, Switzerland), a biofuels and biochemicals developer, will test its genetically engineered yeast to produce bioethanol and biobutanol from grass, corn stover and other agricultural wastes by mid 2010. Because the yeasts are engineered to transform not only C6 sugars, such as glucose, but also C5 sugars like xylose and arabinose, which normally go to waste, bioethanol yields are expected to be 30 percent higher.

The process starts by using Novozymes CTec2 enzymes1 to convert the lignocelluloses in the cellulosic feedstocks into glucose and xylose, followed by the Butalco yeast to convert the sugars into ethanol. Butalco has also developed yeast variants that can convert the sugars into biobutanol, a preferred fuel that is a drop-in replacement for gasoline.

Butalco has signed an agreement with Hohenheim University's (Stuttgart) Institute of Fermentation Technology in the Department of Food Science and Biotechnology to carry out the R&D of the whole process from lignocellulose hydrolysis to downstream processing. Hohenheim professors have been researching bioethanol production for nearly 30 years, and have just built a class-1-safety-approved pilot plant with 4 x 1.5 m3 fermenters, the only one approved for using genetically modified yeasts in Germany.

Butalco was founded by founded by Eckhard Boles at the Institute of Molecular Biosciences at the Goethe University (Frankfurt). The company is being financed by Germany's Volkswind GmbH, an independent wind-power producer based in Ganderkesee (Lower Saxony).

  1. 1. Factclipper: Novozymes and Danisco's Genencor unveil biofuel enzymes that slash costs for cellulosic ethanol
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Read the original story at Ethanol Producer Magazine: Germans test new cellulosic yeast technology | 2010-03-03 | Luke Geiver | Reading time: <10 min | Site access: Open | Rights: Copyright
Drop-in biofuels will overtake ethanol, as world capacity tops 1.7 billion gallons by 2013
Biofuels Digest | 2 March 2010
Abstracted on: 3 March 2010

Biofuels Digest, the news website, has released its Advanced Biofuels tracking database, release 1.1, which follows new projects worldwide. According to the latest figures, advanced biofuels production capacity is projected to reach 1.7 billion gallons by the end of 2013, a healthy rise from last year's announced capacity of 1.3 billion gallons. The database is now tracking 56 companies with advanced biofuels projects in 13 countries.

Biofuels Digest says that some key findings are that drop-in fuels are expected to overtake ethanol as the leading advanced biofuel in terms of production capacity by 2012, and that algal fuel will hit its stride with production capacity projected to reach 421 million gallons per year by 2013.

The database is available as a free download to registered subscribers of Biofuels Digest; subscriptions are free, sign-up at Biofuels Digest with your email address.

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Read the original story at Biofuels Digest: Advanced Biofuels capacity will increase to 1.7 billon gallons by 2013: downloadable database | 2010-03-02 | | Reading time: <10 min | Site access: Open | Rights: Copyright
Chemists devise two-step catalytic process to convert cellulose into gasoline and jet fuel
ScienceNow | 25 February 2010
Abstracted on: 26 February 2010

A chemical — rather than biological — process developed by chemists at the University of Wisconsin–Madison (UWM) converts cellulose from agricultural waste into grassolines — gasoline and jet fuel. Because the method is chemically based, it is expected to be more reliable and easier to maintain than biochemical routes.

Normally, plant cellulose is treated with acids to convert it into sugars, but the process also generates other unwanted chemical compounds, such as levulinic acid and formic acid, which are unsuited for making biofuels. But the UWM researchers knew that existing catalysts can process the acids into a small, ring-shaped compound called gamma-valerolactone (GVL), which they decided to study as a biofuel feedstock.

The UWM process works in two steps: First, the researchers pass a GVL solution over a commercial silica-alumina based catalyst, which breaks GVL down and turns it into butene, a short, linear hydrocarbon. Next, they react the butene at high pressure over another commercial catalyst, producing longer alkenes. Overall, about 95% of the energy in GVL winds up in the liquid alkene fuels.

The GVL-based process is environmentally friendly because converting GVL into liquid alkenes generates a pure stream of pressurized carbon dioxide as a byproduct. This allows the CO2 to be pumped directly underground for longterm sequestration or liquefied and shipped by truck to a storage site. Although some CO2 would still be released when the alkene biofuels are burned, the overall process is carbon negative.

The UWM chemists are now working on coming up with a high-yield route for making GVL from cellulose. If they are successful, the two-step route could lead to an economical way of processing cellulose into renewable gasoline or jet fuel.

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Read the original story at ScienceNow: A New Route to Grassoline | 2010-02-25 | Robert F. Service | Reading time: <10 min | Site access: Open | Rights: Copyright
BBC investigates a Unilever palm-oil supplier, as study rates palm oil's sustainability as high
BBC | 22 February 2010
Abstracted on: 24 February 2010

Palm oil is in the news, both good and bad:

  • BBC's Panorama TV show investigates the connection between the use of palm oil in household goods — foods like biscuits and toiletries like soap — and its effect on orangutans in Indonesia. Using GPS technology and satellite imaging, the BBC team pinpointed the exact locations where a major palm oil producer, the Duta Palma Group, is logging on high conservation lands and deep peat lands. Logging on both types of land are illegal.
  • After viewing the Panorama documentary, Unilever announced1 that it will not buy palm oil originating from Duta Palma, to ensure that they did not end up in its best-selling brands, such as Dove soap and Flora margarine. This is the second blacklisting of a palm-oil producer in three months by Unilever: Earlier it cut off2 palm oil originating from Sinar Mas, the second largest palm oil producer in the world, after Greenpeace presented Unilever with photographic evidence that the Indonesian company was illegally clearing rainforest in protected areas, including in reserves for Indonesia’s endangered orangutan population. Unilever's moves only affect palm oil "originating" from Duta Palma and Sinar Mas — but since palm oil is blended, product from both companies may still find its way into Unilever products.
  • Unilever's actions may become moot if the European Union's plans to re-classify oil palm plantations as forests go into affect, reports3 the EUobserver. The nonprofit organization cites an European Commission draft document that was leaked and is now hosted4 on the website of Friends of the Earth Europe. The document shows that EU is considering allowing use of biofuels produced via conversion of rainforests to oil palm plantations based on a new definition of forests in which the trees should be at least five meters tall, and their crown cover should be more than 30 percent.
  • Meanwhile, a study by Wageningen University in the Netherlands finds5 that sugar cane grown in Brazil, palm oil from Malaysia and Indonesia, and sweet sorghum in China, rank as the most sustainable of the current generation of biofuel crops. The researchers at the university’s plant-science department compared6 nine crops worldwide, and found that the three crops make the most efficient use of land, water, nitrogen and energy resources in relation to the net energy produced. Provided there is no land use change, greenhouse gas emissions of these three biofuels are substantially reduced compared with fossil fuels. Maize (US) and wheat (Northwest Europe) as ethanol feedstocks perform poorly for nearly all indicators. Sugar beet (Northwest Europe), cassava (Thailand), rapeseed (Northwest Europe) and soybean (US) are intermediate.
  1. 1. The Independent: Unilever drops major palm-oil producer
  2. 2. Factclipper: Unilever cuts use of uncertified palm oil, but says sustainable oil is too pricey for consumers
  3. 3. EUobserver: Palm oil plantations are now 'forests,' says EU
  4. 4. European Commission: The practical implementation of the EU biofuels sustainability scheme and on counting rules for biofuels, PDF, 979 kb
  5. 5. Bloomberg.com: Palm Oil, Sugar Cane Most Sustainable Energy Crops, Study Shows
  6. 6. Wageningen University: Duurzame biobrandstof komt uit de tropen
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Read the original story at BBC: Orangutan survival and the shopping trolley | 2010-02-22 | | Reading time: <30 min | Site access: Open | Rights: Copyright
Amyris processes Brazilian sugar into biodiesel by adapting its route for making a malaria drug
Technology Review | 22 February 2010
Abstracted on: 23 February 2010

Amyris Biotechnologies (Emeryville, California), known for getting genetically-engineered yeast to turn sugar into the antimalaria drug artemisinin, is using the same yeast-based metabolic approach for converting sugar into biodiesel — no, not ethanol.

Amyris starts by switching a single enzyme in the artemisinin-producing yeast — the new bugs now process sugar into farnesene, a flavorful oil that accounts partly for the odor of apple skins. Next, Amyris hydrogenates the farnesene into farnesane, a highly combustible fuel that's similar to diesel. Farnesane offers some distinct benefits over other biofuels:

  • Farnesane is a hydrocarbon like diesel and gasoline, so it can be dropped into existing diesel distribution networks (unlike ethanol, for example, which mixes with water and so requires transportation pipelines separate from those for gasoline)
  • Farnesane is synthesized from sugar, so it does not contain the impurities of plant-derived biodiesels that can clog engines at low temperatures
  • Farnesane has no sulfur, and so is even less polluting that regular diesel
  • Farnesane will be made from Brazilian sugarcane (one of the lowest-carbon feedstocks), so it will release 80 percent less carbon dioxide than fossil fuels

In December, Amyris purchased a 40 percent stake in Brazilan sugar producer Grupo São Martinho to build its first farnesene plant, a 100-million-liter-per-year facility, in the Brazilian company's new Boa Vista sugar mill in Goiás. Eventually, Amyris plans to barter its genetically modified yeast to Brazil's sugar mills, which would in turn retrofit their plants for farnesane production; profits from the farnesane operation would be shared.

Recent figures show that artemisinin production costs from yeast is 3–4 times higher than originally estimated. Technology Review suggests that if farnesane production costs are likewise higher, the product will have to be sold as a biochemical in consumer products (cosmetics, for example), and not as a biofuel.

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Read the original story at Technology Review: Searching for Biofuels' Sweet Spot | 2010-02-22 | Antonio Regalado | Reading time: <30 min | Site access: Subscription | Rights: Copyright
SG Biofuels' Jatropha cultivar boosts biodiesel yield by 100 percent and revenue by 300 percent
Los Angeles Times | 22 February 2010
Abstracted on: 23 February 2010

Called JMax 100, the proprietary Jatropha cultivar — a plant variety with specific traits — is the first developed by SG Biofuels (Encinitas, California) to provide farmers with a high yielding variety whose genome is sequenced for particular growing conditions. Jatropha curcas is a non-edible shrub that is native to Central America, and which can be grown on marginal lands unsuitable for other crops; the seeds contain high amounts of an oil that can be refined with existing technology to produce diesel and jet fuel, and specialty chemicals. JMax 100 is optimized specifically for growing in Guatemala.

Because it yields twice as much oil, JMax 100 increases the profitability of Jatropha to greater than $400 per acre, more than 300 percent higher than existing commercial varieties, claims SG Biofuels. This equates to 350 gallons or more per acre at a cost of $1.39 per gallon — essentially competitive with petroleum.

JMax 100 is the result of more than three years of research at the company's Biofuels Genetic Resource Center, resulting in the largest and most diverse library of Jatropha genetic material in the world. The center now contains more than 6,000 unique accessions and an array of Jatropha genetic traits, including enhanced fruit yield, pest resistance, soil adaptation, improved flowering capabilities, uniformity, and improved harvesting, all of which enhance profitability per acre of the crop.

In January 2010, SG Biofuels joined with Life Technologies Corporation to sequence the Jatropha curcas genome, which would allow for rapidly introducing new traits for increasing oil yields.

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Read the original story at Los Angeles Times: SG Biofuels announces 'elite' jatropha cultivar | 2010-02-22 | | Reading time: <10 min | Site access: Open | Rights: Copyright
UC Davis process yields 24 percent more biodiesel by converting both oil seeds and cellulose
R&D Magazine | 19 February 2010
Abstracted on: 22 February 2010

Chemists at the University of California, Davis, are processing whole oil-seed plants — soybean, sunflower, jatropha, camelina, safflower, canola, and others — to produce a better-performing hybrid lipidic/cellulosic biodiesel at higher product yields than conventional transesterification.

Conventional biodiesel production extracts plant oils from seeds, and then converts the oils into fatty acid esters (biodiesel), leaving behind the carbohydrate portion of the plant — the sugars, starches, and cellulose that make up stems, leaves, seed husks and other structures. Previously, the UC researchers had converted the oil-seed plant's carbohydrate material (mono-, di-, or polysaccharides) into 5-(chloromethyl)furfural (CMF) and levulinic acid in combined yields of up to 95 percent.

Now, the chemists duplicated the process by feeding oil seeds into a biphasic reactor containing concentrated hydrochloric acid and 1,2-dichloroethane, heating it in three stages at 80°C for three hours, yielding mixtures of CMF and the respective seed oil (soybean, sunflower, etc.)1. Next, ethanolysis of the mixtures gives ethyl levulinate and biodiesel ethyl esters; alternatively, hydrolysis of the mixture converts CMF into levulinic acid while leaving the oil intact.

The combined processing of oil seeds and cellulosic materials produces a fuel cocktail with a similar boiling range as conventional biodiesel, but thinner. Levulinate esters — basically short-chain oxygenates — becomes waxy at a lower temperature than standard B100 biodiesel, so blends of the two have better cold-performance properties.

Costs of the new process may be somewhat higher than for conventional biodiesel production, but should be offset by the improved fuel yields and performance. The researchers are partnering with Bently Biofuels of Minden, Nevada, to test the performance of levulinate–B100 blends.

  1. 1. Energy & Fuels: Mark Mascal and Edward B. Nikitin (2010), Co-processing of Carbohydrates and Lipids in Oil Crops To Produce a Hybrid Biodiesel, doi: 10.1021/ef9013373
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Read the original story at R&D Magazine: http://www.rdmag.com/News/Feeds/2010/02/environment-more-better-biodiesel/ | 2010-02-19 | | Reading time: <10 min | Site access: Open | Rights: Copyright
Novozymes and Danisco's Genencor unveil biofuel enzymes that slash costs for cellulosic ethanol
Greentech Media | 16 February 2010
Abstracted on: 17 February 2010

At the 15th Annual National Ethanol Conference in Orlando, Florida, two Danish firms announced new enzymes that can reliably convert cellulosic biomass into ethanol at costs close to $2 per gallon — near parity with gasoline:

  • Novozymes announced its Cellic CTec2 enzymes, its first commercial enzyme for cellulosic ethanol. The company says that a combination of CTec2 and its existing HTec2 enzymes cuts enzyme costs for cellulosic ethanol production to $0.50 per gallon — an 80 percent drop over the last two years and a longstanding price target for industry. At $0.50, enzymes are one-quarter of the total levelized cost for cellulosic ethanol at $2.00 per gallon, very close to cost parity with corn ethanol, and with gasoline from oil at $75 per barrel. Novozyme has tested the enzyme cocktail with corn cobs, corn stalks, sugarcane bagasse, wood chips, and wheat straw in its pilot and demonstration plants, and at the facilities of its partners: Greenfield Ethanol Inc., Inbicon, Lignol Energy Corp., Poet LLC, ICM and Sinopec. The company says that largescale commercial plants will be onstream in 2011
  • Genencor introduced its latest generation of cellulosic enzymes, Accellerase Duet, which enhances the beta-glycosidase and cellulose activity of its Accellerase 1500 system. The new enzyme's higher activity allows the dosing levels to be cut three-fold, while at the same time producing higher sugar and biofuel yields. The new enzyme is employed as a whole broth formulation, which provides nutrients to organisms for fermenting the biomass but also lowers the chemical load into the process. The enzyme works well with all feedstock and pretreatment combinations, but is particularly effective on pretreated substrates with high hemicellulose contents. Danisco has a joint venture with DuPont Co. for producing cellulosic ethanol

A primary market for Novozymes and Genencor will be the US, where government guidelines require 16 billion gallons of cellulosic ethanol to be produced annually by 2022. If enzyme costs drop to $0.20–$0.25 per gallon, the US enzyme market could reach $3.2 billion.

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Read the original story at Greentech Media: Denmark Makes Stab for Biofuel Greatness | 2010-02-16 | Joshua Kagan | Reading time: <10 min | Site access: Open | Rights: Copyright
British Airways and Solena to produce renewable jet fuel from waste biomass by 2014
Green Car Congress | 15 February 2010
Abstracted on: 16 February 2010

Europe’s first plant for green jet-fuel will be built by British Airways and Solena Group (Washington, DC) in east London, to power part of BA's air fleet with the low-carbon biofuel from 2014. The plant will gasify 500,000 tonnes per year of biomass waste using Solena's patented plasma gasification technology. The resulting syngas will be converted in a Fischer-Tropsch process into 16 million gallons of biojet fuel (about two percent of BA's annual consumption at Heathrow) and bionaphtha, a blending component in gasoline.

Solena's plasma gasification vitrification (PGV) reactor runs at around 5,000°C (9,000°F) and can disassociate all hydrocarbon and organic materials into their elemental compounds. The PGV reactor emits oxygen, plus small quantities of nitrogen, argon, steam, and carbon dioxide, but does not produce any air pollutants, such as tar, fly ash, flue gas, dioxins or furans. Inorganic materials in the feed are vitrified into glass aggregate — a non-leachable slag for use in construction.

The process will cut lifecycle greenhouse gas emissions by of up to 95 percent, compared with fossil-fuel derived jet kerosene. Specifically, the overall equivalent CO2 reduction is about 550,000 tonnes per year, including 250,000 tonnes from diverting mixed waste from landfill; 145,000 tonnes from using low-carbon biofuel rather than fossil fuel; 86,000 tonnes from burning Fischer-Tropsch tail gas to produce 20 MW of excess electricity; and 72,000 tonnes from the naphtha.

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Read the original story at Green Car Congress: British Airways Partnering With Solena on Renewable Jet Fuel Plant; F-T Biojet Use Targeted for 2014 | 2010-02-15 | | Reading time: <10 min | Site access: Open | Rights: Copyright