化学
催化作用
双功能
烷烃
有机化学
水溶液
生物量(生态学)
双水相体系
碳纤维
羟醛缩合
脱水
化学工程
材料科学
复合材料
工程类
地质学
海洋学
复合数
生物化学
作者
George W. Huber,Juben N. Chheda,Christopher J. Barrett,James A. Dumesic
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2005-06-02
卷期号:308 (5727): 1446-1450
被引量:1606
标识
DOI:10.1126/science.1111166
摘要
Liquid alkanes with the number of carbon atoms ranging from C7 to C15 were selectively produced from biomass-derived carbohydrates by acid-catalyzed dehydration, which was followed by aldol condensation over solid base catalysts to form large organic compounds. These molecules were then converted into alkanes by dehydration/hydrogenation over bifunctional catalysts that contained acid and metal sites in a four-phase reactor, in which the aqueous organic reactant becomes more hydrophobic and a hexadecane alkane stream removes hydrophobic species from the catalyst before they go on further to form coke. These liquid alkanes are of the appropriate molecular weight to be used as transportation fuel components, and they contain 90% of the energy of the carbohydrate and H2 feeds.
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