文献类型：期刊文献

英文题名：Sorbitol Hydrogenolysis to Glycols over Carbon Nanofibers/Graphite-felt Composite-supported Ru Catalyst in a Trickle Bed Reactor

作者：Zhao, L.[1];Zhou, J.[1];Yang, G.[1];Ji, Y.[1];Zhang, M.[1];Chen, H.[1];Zhou, X.[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2012

卷号：34

期号：5-8

起止页码：430

外文期刊名：ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS

收录：;EI(收录号：20120814776360);WOS:【SCI-EXPANDED(收录号:WOS:000301968700006)】；

基金：The authors acknowledge the financial support from the National Natural Science Foundation of China (No. 20776041) and the Ministry of Education of China (IRT0721).

语种：英文

外文关键词：carbon nanofibers; composite; glycols; sorbitol hydrogenolysis; structured catalyst

摘要：Carbon nanofibers were in-situ grown on graphite-felt, and then Ru was supported to synthesize Ru/CNFs/GF structured catalyst. The comparisons of pressure gradient and reaction results clearly indicated that the Ru/CNFs/GF structured catalyst was more proper than powdered Ru/CNFs catalyst for sorbitol hydrogenolysis in a trickle bed reactor. For the structured catalyst, increasing the linear velocities would increase the sorbitol conversion, but only slightly change the glycols selectivity, which was due to the intensified mass transfer. Nevertheless, increasing the thickness of the carbon nanofibers layer would significantly decrease the glycols selectivity, which was due to the increased diffusion distance for hydrogen and glycols in the mesopores of the carbon nanofibers layer.