Ethanol fuel is ethyl alcohol, the same type of alcohol found in alcoholic beverages, used as fuel. It is most often used as a motor fuel, mainly as a biofuel additive for gasoline. The first production car running entirely on ethanol was the Fiat 147, introduced in 1978 in Brazil by Fiat. Ethanol is commonly made from biomass such as corn or sugarcane. World ethanol production for transport fuel tripled between 2000 and 2007 from 17×109 liters (4.5×109 U.S. gal; 3.7×109 imp gal) to more than 52×109 liters (1.4×1010 U.S. gal; 1.1×1010 imp gal). From 2007 to 2008, the share of ethanol in global gasoline type fuel use increased from 3.7% to 5.4%. In 2011 worldwide ethanol fuel production reached 8.46×1010 liters (2.23×1010 U.S. gal; 1.86×1010 imp gal) with the United States of America and Brazil being the top producers, accounting for 62.2% and 25% of global production, respectively. US ethanol production reached 57.54×109 liters (1.520×1010 U.S. gal; 1.266×1010 imp gal) in 2017–04.
Panicum virgatum, commonly known as switchgrass, is a perennial warm season bunchgrass native to North America, where it occurs naturally from 55°N latitude in Canada southwards into the United States and Mexico. Switchgrass is one of the dominant species of the central North American tallgrass prairie and can be found in remnant prairies, in native grass pastures, and naturalized along roadsides. It is used primarily for soil conservation, forage production, game cover, as an ornamental grass, in phytoremediation projects, fiber, electricity, heat production, for biosequestration of atmospheric carbon dioxide, and more recently as a biomass crop for ethanol and butanol.
Cellulosic ethanol is ethanol produced from cellulose rather than from the plant's seeds or fruit. It can be produced from grasses, wood, algae, or other plants. It is generally discussed for use as a biofuel. The carbon dioxide that plants absorb as they grow offsets some of the carbon dioxide emitted when ethanol made from them is burned, so cellulosic ethanol fuel has the potential to have a lower carbon footprint than fossil fuels.
Iogen Corporation is a Canadian company based in Ottawa, Ontario, Canada, and was founded by Patrick Foody Sr. in 1975.
Biomass to liquid is a multi-step process of producing synthetic hydrocarbon fuels made from biomass via a thermochemical route.
Xethanol AMEX: XNL was one of the smaller producers of corn ethanol in the United States, and one of the few publicly traded companies developing technology for producing cellulose ethanol. Ethanol fuel will have increased production from a current level of about 5 billion US gallons (19,000,000 m3) per year to over 20 billion US gallons (76,000,000 m3) annually. Potentially 60 to 100 billion US gallons of ethanol could be produced annually in a sustainable manner from domestic biomass resources. To achieve these goals some believe it will be necessary to develop and commercialize technology for the production of ethanol from cellulose and hemicellulose. Xethanol says it plans to increase production and profitability with new technology it has under development.
The bioconversion of biomass to mixed alcohol fuels can be accomplished using the MixAlco process. Through bioconversion of biomass to a mixed alcohol fuel, more energy from the biomass will end up as liquid fuels than in converting biomass to ethanol by yeast fermentation.
Lignocellulose refers to plant dry matter (biomass), so called lignocellulosic biomass. It is the most abundantly available raw material on the Earth for the production of biofuels, mainly bio-ethanol. It is composed of carbohydrate polymers, and an aromatic polymer (lignin). These carbohydrate polymers contain different sugar monomers and they are tightly bound to lignin. Lignocellulosic biomass can be broadly classified into virgin biomass, waste biomass and energy crops. Virgin biomass includes all naturally occurring terrestrial plants such as trees, bushes and grass. Waste biomass is produced as a low value byproduct of various industrial sectors such as agriculture and forestry. Energy crops are crops with high yield of lignocellulosic biomass produced to serve as a raw material for production of second generation biofuel; examples include switchgrass and Elephant grass.
The United States produces mainly biodiesel and ethanol fuel, which uses corn as the main feedstock. The US is the world's largest producer of ethanol, having produced nearly 16 billion gallons in 2017 alone. The United States, together with Brazil accounted for 85 percent of all ethanol production, with total world production of 27.05 billion gallons. Biodiesel is commercially available in most oilseed-producing states. As of 2005, it was somewhat more expensive than fossil diesel, though it is still commonly produced in relatively small quantities.
Treethanol is an ethanol fuel made from trees.
Abengoa, S.A. is a Spanish multinational company in the green infrastructure, energy and water sectors. The company was founded in 1941 by Javier Benjumea Puigcerver and José Manuel Abaurre Fernández-Pasalagua, and is based in Seville, Spain. Its current chairman is Gonzalo Urquijo Fernández de Araoz. After repeated bankruptcies and rescues, it declared insolvency in February 2021 amid various regulatory and financial charges against the board and management, the second-largest corporate collapse in Spanish history.
Second-generation biofuels, also known as advanced biofuels, are fuels that can be manufactured from various types of non-food biomass. Biomass in this context means plant materials and animal waste used especially as a source of fuel.
DuPont Danisco Cellulosic Ethanol LLC is a 50/50 joint venture between DuPont and Genencor, a subsidiary of Danisco. The company is accelerating development and deployment of cellulosic ethanol, which is made from non-food biomass. DDCE plans to license its technology and also will engage in limited operations of cellulosic ethanol biorefineries.
The use of biofuels varies by region. The world leaders in biofuel development and use are Brazil, United States, France, Sweden and Germany.
BlueFire Renewables is a biofuel company that produces a cellulose-to-ethanol solution using wood waste, agricultural residue and municipal waste. The company is headquartered in Irvine, California and is publicly traded in the U.S. on the OTC Bulletin Board under the ticker symbol "BFRE".
POET LLC is a U.S. biofuel company that specializes in the creation of bioethanol. The privately held corporation, which was originally called Broin Companies, is headquartered in Sioux Falls, South Dakota. In 2007, the Renewable Fuels Association named POET the largest U.S. ethanol producer, creating 1.1 billion US gallons (4,200,000 m3) of fuel per year. Currently, POET produces 1.8 billion gallons of ethanol per year.
Qteros, Inc. is an American energy company researching the production of cellulosic ethanol from a variety of non-food feedstock sources including corn stover, corn cobs, switchgrass, and sugar cane bagasse.
Inbicon is a Danish company that produces cellulosic ethanol.
Cellulose 1,4-beta-cellobiosidase is an enzyme of interest for its capability of converting cellulose to useful chemicals, particularly cellulosic ethanol.
Cellulosic sugars are derived from non-food biomass (e.g. wood, agricultural residues, municipal solid waste). The biomass is primarily composed of carbohydrate polymers cellulose, hemicellulose, and an aromatic polymer (lignin). The hemicellulose is a polymer of mainly five-carbon sugars C5H10O5 (xylose). and the cellulose is a polymer of six-carbon sugar C6H12O6 (glucose). Cellulose fibers are considered to be a plant’s structural building blocks and are tightly bound to lignin, but the biomass can be deconstructed using Acid hydrolysis, enzymatic hydrolysis, organosolv dissolution, autohydrolysis or supercritical hydrolysis.
