Libros UCLV { BETA }

Disadvantages of fossil fuel derived transportation fuels (greenhouse gas emissions, pollution, resource depletion, unbalanced supply-demand relations) are strongly reduced or even absent with biotransportation fuels. Of all biofuels, ethanol is already produced on a fair scale. It produces slightly less greenhouse emissions than fossil fuel (carbon dioxide is recycled from the atmosphere to produce biomass); can replace harmful fuel additives (e.g., methyl tertiary butyl ether) and produces jobs for farmers and refinery workers. It is easily applicable in present day internal combustion engine vehicles (ICEVs), as mixing with gasoline is possible. Ethanol is already commonly used in a 10 % ethanol/90 % gasoline blend. Adapted ICEVs can use a blend of 85 % ethanol/15 % gasoline (E85) or even 95 % ethanol (E95). Ethanol addition increases octane and reduces carbonmonoxide, volatile organic carbon and particulate emissions of gasoline. And, via on board reforming to hydrogen, ethanol is also suitable for use in future fuel cell vehicles (FCVs). Those vehicles are supposed to have about double the current ICEV fuel efficiency. Ethanol production and use has spread to every corner of the globe. As concerns over petroleum supplies and global warming continue to grow, more nations are looking to ethanol and renewable fuels as a way to counter oil dependency and environmental impacts. World production reached an all-time high of nearly 23 billion gallons in 2010 and is expected to exceed 1,20,000 million mark by the end of the year 2020. While the US became the world’s largest producer of fuel ethanol in 2010, Brazil remains a close second, and China, India, Thailand and other nations are rapidly expanding their own domestic ethanol industries. Increased production and use of ethanol have also led to a growing international trade for the renewable fuel. While the vast majority of ethanol is consumed in the country in which it is produced, some nations are finding it more profitable to export ethanol to countries like the US and Japan. High spot market prices for ethanol and the rapid elimination of MTBE by gasoline refiners led to record imports into the US in the last few years. More than 500 million gallons of ethanol entered through American ports, paid the necessary duties, and competed effectively in the marketplace. The increased trade of ethanol around the world is helping to open up new markets for all sources of ethanol. The sustainable production of bioethanol requires well planned and reasoned development programs to assure that the many environmental, social and economic concerns related to its use are addressed adequately. The key for making ethanol competitive as an alternative fuel is the ability to produce it from low-cost biomass. Many countries around the world are working extensively to develop new technologies for ethanol production from biomass, from which the lignocellulosic materials conversion seem to be the most promising one. This e-book provides an updated and detailed overview on Advances in Bioethanol. It looks at the historical perspectives, chemistry, sources and production of ethanol and discusses biotechnology breakthroughs and promising developments, its uses, advantages, problems, environmental effects and characteristics. In addition, it presents information about ethanol in different parts of the world and also highlights the challenges and future of ethanol.

Disadvantages of fossil fuel derived transportation fuels (greenhouse gas emissions, pollution, resource depletion, unbalanced supply-demand relations) are strongly reduced or even absent with biotransportation fuels. Of all biofuels, ethanol is already produced on a fair scale. It produces slightly less greenhouse emissions than fossil fuel (carbon dioxide is recycled from the atmosphere to produce biomass); can replace harmful fuel additives (e.g., methyl tertiary butyl ether) and produces jobs for farmers and refinery workers. It is easily applicable in present day internal combustion engine vehicles (ICEVs), as mixing with gasoline is possible. Ethanol is already commonly used in a 10 % ethanol/90 % gasoline blend. Adapted ICEVs can use a blend of 85 % ethanol/15 % gasoline (E85) or even 95 % ethanol (E95). Ethanol addition increases octane and reduces carbonmonoxide, volatile organic carbon and particulate emissions of gasoline. And, via on board reforming to hydrogen, ethanol is also suitable for use in future fuel cell vehicles (FCVs). Those vehicles are supposed to have about double the current ICEV fuel efficiency. Ethanol production and use has spread to every corner of the globe. As concerns over petroleum supplies and global warming continue to grow, more nations are looking to ethanol and renewable fuels as a way to counter oil dependency and environmental impacts. World production reached an all-time high of nearly 23 billion gallons in 2010 and is expected to exceed 1,20,000 million mark by the end of the year 2020. While the US became the world’s largest producer of fuel ethanol in 2010, Brazil remains a close second, and China, India, Thailand and other nations are rapidly expanding their own domestic ethanol industries. Increased production and use of ethanol have also led to a growing international trade for the renewable fuel. While the vast majority of ethanol is consumed in the country in which it is produced, some nations are finding it more profitable to export ethanol to countries like the US and Japan. High spot market prices for ethanol and the rapid elimination of MTBE by gasoline refiners led to record imports into the US in the last few years. More than 500 million gallons of ethanol entered through American ports, paid the necessary duties, and competed effectively in the marketplace. The increased trade of ethanol around the world is helping to open up new markets for all sources of ethanol. The sustainable production of bioethanol requires well planned and reasoned development programs to assure that the many environmental, social and economic concerns related to its use are addressed adequately. The key for making ethanol competitive as an alternative fuel is the ability to produce it from low-cost biomass. Many countries around the world are working extensively to develop new technologies for ethanol production from biomass, from which the lignocellulosic materials conversion seem to be the most promising one. This e-book provides an updated and detailed overview on Advances in Bioethanol. It looks at the historical perspectives, chemistry, sources and production of ethanol and discusses biotechnology breakthroughs and promising developments, its uses, advantages, problems, environmental effects and characteristics. In addition, it presents information about ethanol in different parts of the world and also highlights the challenges and future of ethanol.