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Selective Production of 1,2-Propylene Glycol from Jerusalem Artichoke Tuber using Ni-W2C/AC Catalysts
Zhou, Likun1,2; Wang, Aiqin1; Li, Changzhi1; Zheng, Mingyuan1; Zhang, Tao1
关键词Biomass Carbides Heterogeneous Catalysis Reaction Mechanisms Tungsten
刊名CHEMSUSCHEM
2012
DOI10.1002/cssc.201100545
5期:5页:932-938
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]ETHYLENE-GLYCOL ; CELLULOSE CONVERSION ; SUPERCRITICAL WATER ; CARBIDE CATALYSTS ; HYDROLYSIS ; KINETICS ; GLUCOSE
英文摘要A series of Ni-promoted W2C/activated carbon (AC) catalysts were investigated for the catalytic conversion of Jerusalem artichoke tuber (JAT) under hydrothermal conditions and hydrogen pressure. Even a small amount of Ni could greatly promote the conversion of JAT to 1,2-propylene glycol (1,2-PG), whereas the pure W2C/AC catalyst resulted in the selective formation of acetol. The product distribution profiles involving the reaction temperature, time, and H2 pressure indicated that 1,2-PG formed as a result of acetol hydrogenation, which was catalyzed by Ni. Thus, there was a synergy between W2C and Ni, and the best performance yielded 38.5?% of 1,2-PG over a 4?% Ni20?% W2C/AC catalyst at 245 degrees C, 6 MPa H2, and 80 min. To understand the reaction process, some important intermediates, such as inulin, fructose, acetol, glyceraldehyde, and 1,3-dihydroxyacetone, were used as the feedstock. Based on the product distributions derived from these intermediates, a reaction pathway was proposed, where JAT was first hydrolyzed into a mixture of fructose and glucose under the catalysis of H+, then the sugars underwent a retro-aldol reaction followed by hydrogenation catalyzed by NiW2C.
语种英语
WOS记录号WOS:000303854800017
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/143066
专题中国科学院大连化学物理研究所
作者单位1.CAS, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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GB/T 7714
Zhou, Likun,Wang, Aiqin,Li, Changzhi,et al. Selective Production of 1,2-Propylene Glycol from Jerusalem Artichoke Tuber using Ni-W2C/AC Catalysts[J]. CHEMSUSCHEM,2012,5(5):932-938.
APA Zhou, Likun,Wang, Aiqin,Li, Changzhi,Zheng, Mingyuan,&Zhang, Tao.(2012).Selective Production of 1,2-Propylene Glycol from Jerusalem Artichoke Tuber using Ni-W2C/AC Catalysts.CHEMSUSCHEM,5(5),932-938.
MLA Zhou, Likun,et al."Selective Production of 1,2-Propylene Glycol from Jerusalem Artichoke Tuber using Ni-W2C/AC Catalysts".CHEMSUSCHEM 5.5(2012):932-938.
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