文献类型：期刊文献

英文题名：Catalysis of SO42 - / ZrO2 solid acid for the liquefaction of coal

作者：Wang, Zhicai[1]; Shui, Hengfu[1]; Zhu, Yanni[1]; Gao, Jinsheng[2]

机构：[1] School of Chemistry and Chemical Engineering, Anhui Key laboratory of Clean Coal Conversion and Utilization, Anhui University of Technology, 243002 Ma'anshan, China; [2] College of Resource and Environmental Engineering, East China University of Science and Technology, 200273 Shanghai, China

年份：2009

卷号：88

期号：5

起止页码：885

外文期刊名：Fuel

收录：EI(收录号：20090711905558)

语种：英文

外文关键词：Coal liquefaction - Quantum chemistry - Cracks - Catalysis - Catalyst activity - Reaction intermediates - Hydrogenation

摘要：In order to study the catalysis of SO42 - / ZrO2 solid acid for the liquefaction of coal, a series of SO42 - / ZrO2 solid acids were synthesized by the method of precipitation-impregnation. The catalytic behaviours of the SO42 - / ZrO2 solid acids for the hydro-liquefaction of Shenhua coal and model compounds, such as diphenylmethane, bibenzyl and phenyl ethyl ether, were investigated. In addition, non-catalytic liquefaction and the catalytic liquefaction under N2 were further compared with the catalytic liquefaction under H2 in order to understand the catalytic mechanism of SO42 - / ZrO2 solid acid. The results indicate that hydro-liquefaction conversions of coal and model compounds are related to the strength, amount and nature of acid sites on the surface of SO42 - / ZrO2, and the strong acid site responds to their catalytic activities. The SO42 - / ZrO2 solid acid catalyzes mainly the hydro-cracking, ring-opening and hydrogenation reactions of coal to produce oil and gas during the coal liquefaction. The hydro-cracking reactions in the liquefaction of model compounds and coal catalyzed by SO42 - / ZrO2 involved via carbenium ion intermediate instead of traditional radicals intermediate. ? 2008 Elsevier Ltd. All rights reserved.