文献类型：期刊文献

英文题名：Kinetics of Shenhua coal liquefaction catalyzed by SO₄²⁼/ZrO₂ solid acid

作者：Shui, Hengfu[1];Chen, Zhixiong[1];Wang, Zhicai[1];Zhang, Dexiang[2]

机构：[1]Anhui Univ Technol, Sch Chem & Chem Engn, Anhui Key Lab Coal Clean Convers & Utilizat, Maanshan 243002, Anhui, Peoples R China;[2]E China Univ Sci & Technol, Coll Resource & Environm Engn, Shanghai 200273, Peoples R China

年份：2010

卷号：89

期号：1

起止页码：67

外文期刊名：FUEL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000271295000009)】；

基金：This work was supported by the Natural Scientific Foundation of China (Nos. 20676001 and 20876001), the International Cooperative Project of Anhui Province (No. 07080703001) and the National High Technology Research and Development Program of China (863 Program, 2006AA05Z314, 2007AA06Z113). Authors are also appreciative for the financial support from the Anhui Provincial Innovative Group for Processing and Clean Utilization of Coal Resource.

语种：英文

外文关键词：Coal liquefaction; SO42=/ZrO2 catalyst; Kinetics

摘要：Based on the structural inhomogeneities of coal and intermediate products of coal liquefaction, a new kinetic model was advanced to simulate the Shenhua coal liquefaction catalyzed by SO42=/ZrO2 solid acid catalyst using kinetic lump method. It was found that coal was hydrocracked to preasphaltene, asphaltene, oil and gas directly, and preasphaltene and asphaltene were further hydrocracked into oil and gas products in coal liquefaction. Certain regressive reactions existed in the process. The liquefaction conversions calculated from the model agreed well with the experimental data for Shenhua coal liquefaction catalyzed by SO42=/ZrO2 solid acid at the range of experimental conditions, and the activation energies were 69-136 kJ mol (1). There existed obvious regressive reactions at higher liquefaction temperatures. However, besides the regressive transformation of oil and gas to asphaltene at 450 degrees C liquefaction, there also existed condensation processes of preasphaltene and asphaltene to coke. (C) 2009 Elsevier Ltd. All rights reserved.