Liquid alkanes with targeted molecular weights from biomass-derived carbohydrates.
Liquid alkanes with targeted molecular weights from biomass-derived carbohydrates.
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DOI：
10.1002/cssc.200800001
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发表时间：
2008-05
期刊：
影响因子：
8.4
通讯作者：
R. West;Zhen Liu;M. Peter;J. Dumesic
中科院分区：
文献类型：
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作者：
R. West;Zhen Liu;M. Peter;J. Dumesic
液体运输燃料必须清洁燃烧并具有高能量密度，目前石油满足这些标准，石油是一种不可再生资源，其燃烧导致大气CO（2）水平增加。从可再生生物质资源生产运输燃料的一种有吸引力的方法是将碳水化合物转化为具有目标分子量的烷烃，例如用于喷气燃料应用的C（8）-C（15）。目标正构烷烃可以直接从果糖通过一个集成的方法生产，该方法包括首先将该C（6）糖脱水以形成5-羟甲基糠醛，然后与丙酮受控地形成C-C键以形成C（9）和C（15）化合物，并通过氢化和加氢脱氧反应完成以形成相应的正构烷烃。类似的反应从5-甲基糠醛或2-糠醛开始，后者产生C（8）和C（13）正烷烃。
Liquid transportation fuels must burn cleanly and have high energy densities, criteria that are currently fulfilled by petroleum, a non-renewable resource, the combustion of which leads to increasing levels of atmospheric CO(2). An attractive approach for the production of transportation fuels from renewable biomass resources is to convert carbohydrates into alkanes with targeted molecular weights, such as C(8)-C(15) for jet-fuel applications. Targeted n-alkanes can be produced directly from fructose by an integrated process involving first the dehydration of this C(6) sugar to form 5-hydroxymethylfurfural, followed by controlled formation of C-C bonds with acetone to form C(9) and C(15) compounds, and completed by hydrogenation and hydrodeoxygenation reactions to form the corresponding n-alkanes. Analogous reactions are demonstrated starting with 5-methylfurfural or 2-furaldehyde, with the latter leading to C(8) and C(13) n-alkanes.