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    To encourage Malaysia's private sector to generate energy from biomass resources, national electricity company Tenaga Nasional Bhd (TNB) has increased the purchase price of electricity produced from palm oil biomass waste to 21 sen per kilowatt hour from 19 sen now. According to Minister of Enegry, Water and Communications, Datuk Seri Dr Lim Keng Yaik the new price structure, under the Renewable Energy Power Purchase Agreement (REPPA), will be implemented immediately. Such projects are eligible for the Clean Development Mechanism. Under the 9th Malaysian Plan, the country's government aims to achieve the installation of 300MW and 50MW of grid-connected electric power from renewable energy sources in Peninsular Malaysia and Sabah, respectively. Bernama - August 7, 2007.

    Aspectrics, which develops encoded photometric infrared and near infrared spectroscopy, will be launching a new range of biofuels analyzers designed to meet the demands of scientists and analysts to carry out biodiesel quality control and analyze biodiesel blend percentages in real time. Bioresearch Online - August 7, 2007.

    Irish start-up Eirzyme has secured a €10m investment from Canadian company Micromill System. The new company will produce low-cost enzymes to convert biological materials such as brewers' grains into bioethanol and biogas. RTE - August 6, 2007.

    Imperium Renewables says it has a deal to provide Royal Caribbean Cruises with biodiesel. The Seattle-based biodiesel maker, which is scheduled to inaugurate its Grays Harbor plant this month, will sell the cruise line 15 million gallons of biodiesel in 2007 and 18 million gallons annually for four years after that. The Miami-based cruise line has four vessels that call in Seattle. It is believed to be the single-largest long-term biodiesel sales contract to an end user in the U.S. Seattle Times - August 5, 2007.

    The J. Craig Venter Institute, leading the synthetic biology revolution, is expanding its Bio-Energy Program, seeking a senior scientist to head the new dedicated department. With ongoing research in biohydrogen, cellulosic ethanol, microbial fuel cells, and bacterial nanowires, the Environmental Genomics and Plant Genomics groups within JCVI are working on active components related to bio-energy. NatureJobs - August 5, 2007.

    Polish power and heat firm Praterm has decided to invest 50 to 100 mln zloty (€13.2-26.4 /US$18.1-36.4 mln) by 2013 in biomass production. The company has already bought Bio-Energia, an operator of four biomass heating plants with a total capacity of 14 MW. Wirtualna Polska - August 5, 2007.

    Brazil and Mexico will sign a cooperation agreement to collaborate on the production of ethanol from sugarcane, Gonzalo Mourão of the Brazilian chancellory's Departamento do México, América Central e Caribe said. Brazil's President Lula is on a tour of Central America and is currently in Mexico, after which he will visit Honduras, Nicaragua, Jamaica and Panama. He is set to sign several bilateral agreements on energy and biofuels with these countries. Reuters Brasil - August 4, 2007.

    Evergreen Pulp Inc. announced that it and Diversified Energy Corp. have been selected by the state of California for a $500,000, 36-month renewable energy project that aims to dramatically reduce natural-gas-use residue and natural gas at its Samoa mill. The Public Interest Energy Research Natural Gas Program, a part of the California Energy Commission, awarded four contracts for research, development and demonstration of technologies to replace natural gas with renewable resources, to four applicants from among a pool of 25. The state’s focus for the contracts was for biomass-to-gas and/or hybrid projects specifically addressing industrial and commercial process heating or combined heat and power needs. Eureka Reporter - August 4, 2007.

    Greenline Industries, which designs and builds biodiesel production facilities, and ULEROM, one of Romania's largest agri-business corporations, today announced the formal opening of their largest facility in Vaslui, Romania. The plant will produce some 26.5 million liters (7 mio gallons) per year. The Romanian facility is the 17th example of Greenline's technology featuring waterless wash, computerized, continuous flow and modular construction. PRNewswire - August 1, 2007.

    US Renewables Holdings announced today that it has successfully closed on $475 million of third party capital commitments in its most recent private equity fund, USRG Power & Biofuels Fund II, LP and related vehicles (collectively, "Fund II"), ahead of the fund's original target of $250 million. PRNewswire - August 1, 2007.

    Malaysian palm oil company Kim Loong Resources Bhd has secured European energy trading group Vitol as buyer for all its carbon credits from its planned biogas plant in Kota Tinggi. The biogas facility generates methane from palm oil mill effluent, a waste product. The project is expected to generate over RM2 million (€423,000/US$579,000) of earnings annually. The methane capture and power generation project was registered and approved by the Clean Development Mechanism. The Edge Daily - July 31, 2007.

    GreenHunter Energy, Inc. announces that its wholly-owned subsidiary, GreenHunter BioFuels, Inc., located in Houston, Texas has successfully acquired Air Emission Permits from TCEQ (Texas Commission of Environmental Quality) under TCEQ's Permit by Rule (PBR) programs. These permits open the way for construction of a 105 million gallon per year (mgy) biodiesel facility including a separate but related methanol distillation facility. PRNewswire - July 30, 2007.

    Together with Chemical & Engineering News' Stephen K. Ritter, the journal Environmental Science & Technology sent Erika D. Engelhaupt to Brazil from where she wrote daily dispatches of news and observations about biofuels research. In particular she focuses on a bioenerrgy research partnership between the American Chemical Society, the Brazilian Chemical Society, and the Brazilian Agricultural Research Corporation (EMBRAPA). Check out her blog. Dipatches from Brazil - July 28, 2007.

    Consultation is under way on a £50 million (€74/US$101million) renewable energy plant planned for the South Wales Valleys. Anglo-Dutch company Express Power plans to build a wood-fuelled biomass plant on Rassau Industrial Estate in Blaenau Gwent. The plant will generate an annual 160,000 MWh (Mega Watt hours) of green electricity for Wales from forestry, recycled wood and wood derivatives. ICWales - July 27, 2007.

    The price of New York crude leapt to 77.24 dollar a barrel on Thursday, marking the highest level since August 9, 2006, as keen global demand and tight supplies fuelled speculative buying, traders said. On Wednesday, the US government had revealed that inventories of American crude fell by 1.1 million barrels last week. France24 - July 26, 2007.

    Arriva, one of Europe's largest transport groups is trialling B20 biodiesel for the first time on 75 of its buses. The company is aiming to reduce total carbon emissions by around 14 per cent by using biodiesel as a 20 per cent blend (predominantly be a mixture of sustainable soya products, along with used cooking oil and tallow). The 75 buses in the innovative trial will carry around 130,000 passengers every week. Minimal engineering changes will be required to the fleet as part of the scheme. Arriva - July 26, 2007.

    Marathon Oil Corporation announces that it has completed two more projects adding biodiesel blended fuel at its Robinson and Champaign terminals in Illinois. The terminals now feature in-line ratio blending in order to provide soy-based B-2 (two percent biodiesel) and B-11 (eleven percent biodiesel). Marathon Oil - July 25, 2007.

    Norway-based renewable energy firm Global Green One has agreed to set up a € 101.6 million bioethanol plant in Békéscsaba (southeast Hungary), with more facilities planned for Kalocsa, Szombathely and Kõszeg, the latter of which was already a target for a €25 million plant in May this year. The Békéscsaba plant would process 200,000 tonnes of maize per year, employing around 100 people. The logistics part of the facility would also create 100 jobs. The company expects the factory to generate €65 million in revenues each year. Portfolio - July 25, 2007.

    A Canadian firm, Buchanan Renewable Energies, is to begin an investment into Liberia's biomass industry that will grow to US$20 million in October and offer 300 jobs by end of the year. The company will start shipping 90 major pieces of equipment to Liberia by the end of August. Daily Observer (Monrovia) - July 24, 2007.

    KNM Process Systems Sdn Bhd, has secured a RM122 million (€26/$36m) order to build a biodiesel plant in Pahang, Malaysia, for Mission Biofuels Sdn Bhd, a subsidiary of Australian biofuels company Mission Biofuels Ltd. The plant will have a biodiesel output of 750 tonnes per day and glycerine output of 82 tonnes per day. Malaysia Business Times - July 24, 2007.

    AlgoDyne Ethanol Energy Inc. confirms that its retail partner, Canadian Green Fuels, has entered into an agreement with Cansource BioFuels to open a new biodiesel production facility in Mayerthorpe Alberta. The deal will see the construction and development of a community based, integrated crushing and biodiesel facility to process 10 million litres of ASTM certified canola based biodiesel which will be scaled up to produce 40million litres by 2010. BusinessWire - July 23, 2007.

    The Center for Management Technology announces the second Biomass-to-Liquids Technology conference will take place in Vienna this year, from 12 to 13 September. The current state of BTL-technologies will be presented and discussed. Biomass-to-Liquids conversion pathways are seen by many as promising avenues into the world of second generation biofuels that relies on the use of a broad variety of possible biomass feedstocks. CMT - July 23, 2007.

    Gulf Ethanol Corporation, a Houston-based energy company, announced today that it has initiated negotiations with representatives of government and industry in Uruguay. Discussions, coordinated by the U.S. Department of Commerce, centered on the synergy between Gulf Ethanol's interest in exploiting the potential of sorghum as a non-food fuel stock for ethanol production and the ideal conditions for growing the crop in Uruguay. The company criticizes the use of food crops like corn for ethanol in the U.S. and is seeking alternatives. Yahoo Press Release - July 20, 2007.

    Dutch company Capella Capital N.V. announces its investment in BiogasPark N.V. and acquires a 20 % stake upon the foundation of the company. The remaining shares are held by the management and strategic investors. BiogasPark N.V. will invest in the field of renewable energy and primarily focuses on financing, purchasing and the maintenance of biogas plant facilities. Ad Hoc News - July 20, 2007.

    Bioenergy company Mascoma Corp. is to build the world's first commercial scale cellulosic ethanol plant in Michigan where it will collaborate with Michigan State University. The $100 million plant will rely on the biochemical, enzymatic process that breaks down biomass to convert it to sugars. One of the factors that attracted Mascoma to Michigan was the recent $50 million federal grant MSU received to study biofuels in June. MSU will help in areas such as pretreatment technology for cellulosic ethanol production and energy crops that can be utilized by the plant. The State News - July 20, 2007.

    PetroChina, one of China's biggest oil companies, aims to invest RMB 300 million (€28.7/US$39.6m) in biofuel production development plans. A special fund is also going to be jointly set up by PetroChina and the Ministry of Forestry to reduce carbon emissions. Two thirds of the total investment will be channeled into forestry and biofuel projects in the provinces of Sichuan, Yunnan and Hebei, the remainder goes to creating a China Green Carbon Foundation, jointly managed by PetroChina and the State Forestry Administration. China Knowledge - July 19, 2007.

    Netherlands-based oil, gas, power and chemical industries service group Bateman Litwin N.V. announces it has signed an agreement to acquire Delta-T Corporation, a leading US-based bioethanol technology provider, with a fast growing engineering, procurement and construction division for a total consideration of US$45 million in cash and 11.8 million new ordinary shares in Bateman Litwin. Bateman Litwin - July 18, 2007.

    TexCom, Inc. announced today that it has signed a letter of intent to acquire Biodiesel International Corp. (BIC), and is developing a plan to build an integrated oilseed crushing and biodiesel production facility in Paraguay. The facility, as it is currently contemplated, would process 2,000 metric tons of oil seeds per day, yielding approximately 136,000 metric tons (approximately 39 Million Gallons) of biodiesel and 560,000 metric tons of soy meal pellets per year. Initial feedstock will consist mainly of soybeans that are grown in the immediate area of the proposed production plant in the Provinces of Itapua and Alto Parana. MarketWire - July 18, 2007.

    Spanish power company Elecnor announced that it will build Spain's biggest biodiesel production plant for €70 million (US$96.48 million). The plant, in the port of Gijon in northern Spain, will be ready in 22 months and will produce up to 500,000 tonnes of biodiesel a year from vegetable oil. The plant will be one of the world's biggest. Spain has decided to impose mandatory blending of biofuels with conventional fossil fuels as part of European Union efforts to curb greenhouse gas emissions. Elecnor [*Spanish] - July 18, 2007.

    The University of North Dakota Energy & Environmental Research Center (EERC) conducted a feasibility study to determine the most economical solutions to provide biomass energy to the isolated Chugachmiut Tribal Community in the village of Port Graham, Alaska, located on the Kenai Peninsula about 180 miles southwest of Anchorage. The village is only accessible by air or water, making traditional fossil fuel sources expensive to deliver and alternative forms of energy difficult to implement. The case study based on decentralised bioenergy offers interesting parallels to what would be needed to provide energy to the developing world's huge population that lives in similarly isolated conditions. EERC - July 18, 2007.

    According to a basic market report by Global Industries Inc., world biodiesel sales are expected to exceed 4.7 billion gallons (17.8 billion liters) by 2010. Though Europe, with a share estimated at 84.16% in 2006, constitutes the largest market, and will continue to do so for the coming years, major growth is expected to emanate from the United States. The automobile applications market for biodiesel, with an estimated share of 55.73% in 2006 constitutes the largest as well as the fastest growing end use application. Other applications independently analyzed include the Mining Applications market and the Marine Applications market. PRWeb - July 18, 2007.


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Monday, August 06, 2007

Scientists develop more efficient biorefining process to make ethanol from wheat

In a finding that could help put wheat alongside corn on the menu of biofuel sources, researchers in Greece and the United Kingdom report the development of a new method for producing ethanol from wheat. The technology - potentially cheaper and more efficient than conventional methods for producing wheat-based biofuel - has been published as an open-access article in Biotechnology Progress.

As oil prices soar, demand for bioethanol to stretch out supplies of gasoline has increased dramatically, along with frenzied research efforts to find the best raw materials and conversion processes for its economical production.

Cereals and sugar crops are currently the preferred raw materials for bioethanol production due to availability and low processing cost. In the EU, wheat is more widely cultivated and could be regarded as the preferred cereal grain for bioethanol production. The predominant process for wheat conversion into a fermentation feedstock begins with a simple dry milling stage leading to the production of whole wheat flour. The starch content in whole wheat flour is then hydrolyzed into glucose by commercial enzymes. The resulting glucose solution is fermented into ethanol after the addition of nutrient supplements. This process finally leads to the production of only one coproduct (Dried Distiller's Grain), which has a low market value as animal feed.

In the new study, Apostolis Koutinas and colleagues describe a simplified biorefining method that uses fewer steps and less energy and generates fewer waste products but more valuable byproducts (schematic, click to enlarge). The economics and efficiency of bioethanol production from wheat could thus be improved by fractionating the grain into the fermentable fraction and several nonfermentable fractions, including bran, germ and protein, that have a wide spectrum of end-uses.

The main differences between the proposed and the traditional dry milling of wheat are:
  • Wheat components that are not fermentable during Saccharomyces cerevisiae cultivations for bioethanol production are separated prior to fermentation. In this way, two coproducts are produced (bran-rich pearling and gluten) with current and potential market outlets that could improve process economics. In addition, the removal of non-fermentable solids from yeast fermentation leads to the production of pure yeast cells that have a much higher market value and diversified market outlets as compared to Dry Distillers Grains (with solubles) produced by traditional wheat dry milling.
  • Hydrolysis of starch or any remaining protein and phytic acid is achieved by consortia of enzymes that are produced by Aspergillus awamori fermentation on wheat flour. Simultaneous gelatinization, liquefaction, and saccharification is achieved at temperatures less than 70 C because the crude filtrate used from fungal fermentations contains all of the enzymes required to hydrolyze wheat components. Fungal cells were grown on exactly the same medium to produce enzymes that led to complete hydrolysis of wheat starch and protein during fermentation. Depending on plant capacity, this processing scheme leads to lower energy requirements and capital investment as compared to traditional processing that uses separate liquefaction and saccharification stages.
  • Wheat is the sole raw material used throughout this process. A minimum amount of waste is produced by regenerating nutrients consumed during A. awamori fermentation via fungal autolysis. Fungal autolysates are used to supply additional nutrients for yeast fermentation.
In the process presented by the scientists, starch hydrolysis and fungal autolysis are carried out in separate reactions. However, the operating conditions employed for starch hydrolysis (60 C and uncontrolled pH) and fungal autolysis (55 C and uncontrolled pH) are very similar. This creates the opportunity to integrate these two unit operations in a single batch unit operation leading to lower capital investment and processing costs:
:: :: :: :: :: :: :: :: ::

The study then presents experimental results that justify the feasibility of integrating starch hydrolysis and fungal autolysis in the same unit operation for the production of a nutrient-complete medium for bioethanol production.

The feedstock production process including continuous operation for fungal fermentation and combined hydrolytic/autolytic reaction has been cost-optimized by the scientists by nonlinear programming. A continuous scheme for starch hydrolysis is proposed where initial gelatinization and liquefaction is carried out at significantly lower temperature (68 C) and faster reaction rate (up to 10 min residence time) as compared to the conventional process due to the utilization of the enzyme consortium produced from fungal fermentation. Subsequently, starch saccharification is carried out together with fungal autolysis at 55 C in the same unit operation.

Depending on the selected combination of physical and biological treatment, the optimized process yields various fractions enriched in bran, wheat germ and proteins that could be sold or utilized for the extraction or production of value-added products, boosting income of biorefineries, the scientists say.

This process could substitute for the conventional wheat dry milling process that is currently employed in industry. The most important unit operations of the proposed continuous scheme are a fungal fermentation producing enzymes and fungal cells and a combined hydrolytic/autolytic reaction producing a nutrient-complete medium.

References:
Najmul Arifeen, Ruohang Wang, Ioannis Kookos, Colin Webb, and Apostolis A. Koutinas, "Optimization and Cost Estimation of novel Wheat Biorefining for Continuous Production of Fermentation Feedstock", Biotechnol. Prog., 23 (4), 872 -880, 2007. DOI: 10.1021/bp0700408 S8756-7938(07)00040-9



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