Huber George W, Chheda Juben N, Barrett Christopher J, Dumesic James A
Department of Chemical and Biological Engineering, University of Wisconsin at Madison, Madison, WI 53706, USA.
Science. 2005 Jun 3;308(5727):1446-50. doi: 10.1126/science.1111166.
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.
通过酸催化脱水从生物质衍生的碳水化合物中选择性地生产碳原子数为C7至C15的液态烷烃，然后在固体碱催化剂上进行羟醛缩合反应以形成大型有机化合物。然后，这些分子在包含酸和金属位点的双功能催化剂上通过脱水/氢化反应在四相反应器中转化为烷烃，在该反应器中，水性有机反应物变得更疏水，十六烷烷烃物流在疏水性物质进一步形成焦炭之前将其从催化剂上去除。这些液态烷烃具有适合用作运输燃料组分的分子量，并且它们含有碳水化合物和氢气进料能量的90%。
