The Joint Graduate School of Energy and Environment, CHE Center for Energy Technology and Environment, King Mongkut's University of Technology Thonburi, Thailand.
Bioresour Technol. 2011 Jan;102(2):2040-6. doi: 10.1016/j.biortech.2010.09.073. Epub 2010 Sep 22.
Hydrolysis/dehydration/aldol-condensation/hydrogenation of lignocellulosic-biomass (corncobs) and biomass-derived carbohydrates (tapioca flour) to produce water-soluble C5-C15 compounds was developed in a single reactor system. WO3-ZrO2 efficiently catalyzed the hydrolysis/dehydration of these feedstocks to 5-hydroxymethylfurfural and furfural, while the impregnation of WO3-ZrO2 with Pd allowed sequential aldolcondensation/hydrogenation of these furans to C5-C15 compounds. The highest C5-C15 yields of 14.8-20.3% were observed at a hydrolysis/dehydration temperature of 573 K for 5 min, an aldol-condensation temperature of 353 K for 30 h, and a hydrogenation temperature of 393 K for 6 h. The C5-C15 yield from tapioca flour was higher than that from corncobs (20.3% compared to 14.8%). Tapioca flour produced more C6/C9/C15, whereas corncobs generated more C5/C8/C13 compounds due to the presence of hemicellulose in the corncobs. These water-soluble organic compounds can be further converted to liquid alkanes with high cetane numbers for replacing diesel fuel in transportation applications.
在单反应器系统中开发了将木质纤维素生物质（玉米芯）和生物质衍生的碳水化合物（木薯粉）水解/脱水/醛缩合/加氢转化为水溶性 C5-C15 化合物的方法。WO3-ZrO2 高效催化这些原料的水解/脱水生成 5-羟甲基糠醛和糠醛，而 WO3-ZrO2 浸渍 Pd 则允许这些呋喃的顺序醛缩合/加氢转化为 C5-C15 化合物。在水解/脱水温度为 573 K、5 min，醛缩合温度为 353 K、30 h，加氢温度为 393 K、6 h 的条件下，观察到 C5-C15 的最高收率为 14.8-20.3%。木薯粉的 C5-C15 收率高于玉米芯（20.3%比 14.8%）。木薯粉产生了更多的 C6/C9/C15，而玉米芯由于其中含有半纤维素，生成了更多的 C5/C8/C13 化合物。这些水溶性有机化合物可以进一步转化为具有高十六烷值的液体烷烃，用于替代运输应用中的柴油燃料。
