Integrated Conversion of Cellulose to High-Density Aviation Fuel
Integrated Conversion of Cellulose to High-Density Aviation Fuel
复制标题
纤维素集成转化为高密度航空燃料
DOI：
10.1016/j.joule.2019.02.005
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发表时间：
2019-04-17
期刊：
影响因子：
39.8
通讯作者：
Zhang, Tao
中科院分区：
文献类型：
--
作者：
Liu, Yanting;Li, Guangyi;Zhang, Tao
将可再生木质纤维素催化转化为运输燃料对于建立能源安全和减少CO2排放至关重要。在这里，我们描述了一种有效的和综合的战略，用于生产高密度航空燃料与纤维素，丰富的和不可食用的原料生物质。首先，以71.4%的分离产率将纤维素选择性地转化为2，5-己二酮。随后，在双床催化剂体系中，2，5-己二酮与氢气进行羟醛缩合-加氢和加氢脱氧反应，以74.6%的碳收率直接得到了C12和C18支链多环烷烃的混合物。通过该方法获得的多环烷烃混合物具有高密度（0.88 g/mL）和低凝固点（225 K）。在真实的应用中，它们可用作先进航空燃料或添加剂以改善常规航空燃料的体积热值。
The catalytic conversion of renewable lignocellulose to transportation fuels is crucial to establish energy security and mitigate CO2 emissions. Here, we describe an effective and integrated strategy for the production of high-density aviation fuel with cellulose, an abundant and inedible raw biomass. First, cellulose was selectively converted to 2,5-hexanedione in a separation yield of 71.4%. Subsequently, a mixture of C-12 and C-18 branched polycycloalkanes was directly obtained in a carbon yield of 74.6% by the aldol condensation-hydrogenation and hydrodeoxygenation reaction of 2,5-hexanedione and hydrogen over a dual-bed catalyst system. The polycycloalkane mixture obtained by this process has high density (0.88 g mL(-1)) and low freezing point (225 K). In real application, they can be used as advanced aviation fuel or additives to improve the volumetric heat values of conventional aviation fuels.