文献类型：期刊文献

英文题名：Catalysis of SO₄^2-/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]Anhui Univ Technol, Sch Chem & Chem Engn, Anhui Key Lab Clean Coal Convers & Utilizat, Maanshan 243002, Peoples R China;[2]E China Univ Sci & Technol, Coll Resource & Environm Engn, Shanghai 200273, Peoples R China

年份：2009

卷号：88

期号：5

起止页码：885

外文期刊名：FUEL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000264087300015)】；

基金：This study was supported by the National Natural Science Foundation of China (20776001, 20676001). The authors gratefully acknowledge the "863" Program of China (2006AA05Z314, 2007AA06Z113) and the International Cooperative Project of Anhui Province (07080703001). The authors also appreciated the financial support of innovative group of Anhui Province "Coal Resource Processing & Cleaning Utilization".

语种：英文

外文关键词：SO42-/ZrO2 solid acid; Hydro-liquefaction; Coal; Model compound; Catalysis

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 N-2 were further compared with the catalytic liquefaction under H-2 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. (c) 2008 Elsevier Ltd. All rights reserved.