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Ethanol and biofuels : agriculture, infrastructure, and market constraints related to expanded production

著者: Brent D Yacobucci; Randall Dean Schnepf; Library of Congress. Congressional Research Service.
出版商: [Washington, D.C.] : Congressional Research Service, Library of Congress, 2007.
丛书: CRS report for Congress, RL33928.
版本/格式:   电子图书 : 国家级的政府刊物 : 英语查看所有的版本和格式
数据库:WorldCat
提要:
High petroleum and gasoline prices, concerns over global climate change, and the desire to promote domestic rural economies have greatly increased interest in biofuels as an alternative to petroleum in the U.S. transportation sector. Biofuels, most notably corn-based ethanol, have grown significantly in the past few years as a component of U.S. motor fuel supply. Ethanol, the most commonly used biofuel, is blended  再读一些...
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材料类型: 政府刊物, 国家级的政府刊物, 互联网资源
文件类型: 互联网资源
所有的著者/提供者: Brent D Yacobucci; Randall Dean Schnepf; Library of Congress. Congressional Research Service.
OCLC号码: 123930507
注意: "March 16, 2007."
Title taken from title screen (viewed May 2, 2007).
描述: 13 p. : digital, PDF file.
详述: Mode of access: World Wide Web.; System requirements: Adobe Acrobat Reader.
丛书名: CRS report for Congress, RL33928.
责任: Brent D. Yacobucci, Randy Schnepf.

摘要:

High petroleum and gasoline prices, concerns over global climate change, and the desire to promote domestic rural economies have greatly increased interest in biofuels as an alternative to petroleum in the U.S. transportation sector. Biofuels, most notably corn-based ethanol, have grown significantly in the past few years as a component of U.S. motor fuel supply. Ethanol, the most commonly used biofuel, is blended in nearly half of all U.S. gasoline (t the 10% level or lower in most cases). However, current biofuel supply represents less than 4% of total gasoline demand. While recent proposals have set the goal of significantly expanding biofuel supply in the coming decades, questions remain about the ability of the U.S. biofuel industry to meet rapidly increasing demand. Current U.S. biofuel supply relies almost exclusively on ethanol produced from Midwest corn. In 2006, 17% of the U.S. corn crop was used for ethanol production. To meet some of the higher ethanol production goals would require more corn than the United States currently produces, if all of the envisioned ethanol was made from corn. Due to the concerns with significant expansion in corn-based ethanol supply, interest has grown in expanding the market for biodiesel produced from soybeans and other oil crops. However, a significant increase in U.S. biofuels would likely require a movement away from food and grain crops. Other biofuel feedstock sources, including cellulosic biomass, are promising, but technological barriers make their future uncertain. Issues facing the U.S. biofuels industry include potential agricultural "feedstock" supplies, and the associated market and environmental effects of a major shift in U.S. agricultural production; the energy supply needed to grow feedstocks and process them into fuel; and barriers to expanded infrastructure needed to deliver more and more biofuels to the market. This report outlines some of the current supply issues facing biofuels industries, including the limitations on agricultural feedstocks, infrastructure constraints, energy supply for biofuel production, and fuel price uncertainties.

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