文献类型：期刊文献

英文题名：Reaction Kinetics Study on the Heating Stage of the Shenhua Direct Coal Liquefaction Process

作者：Shan, Xiangen[1,2];Li, Kejian[2];Zhang, Xuwen[2];Jiang, Hongbo[1];Weng, Huixin[1]

机构：[1]E China Univ Sci & Technol, Res Inst Petr Proc, Shanghai 200237, Peoples R China;[2]Natl Engn Lab Direct Coal Liquefact, Shanghai 201108, Peoples R China

年份：2015

卷号：29

期号：4

起止页码：2244

外文期刊名：ENERGY & FUELS

收录：;EI(收录号：20151700780868);WOS:【SCI-EXPANDED(收录号:WOS:000353251800021)】；

基金：This work was funded by the Innovation Program approved by China Shenhua Group (SHJT-12-15). The authors also wish to acknowledge the support by the East China University of Science and Technology.

语种：英文

外文关键词：Catalysts - Kinetics - Rate constants - Coal liquefaction

摘要：Direct coal liquefaction in the heating stage of Shenhua Shendong bituminous coal was carried out in a 0.01 t/d continuous tubular facility with iron catalyst and hydrogenated anthracene and wash oil as solvent at a residence time (t) of 3.56.5 min and a reaction temperature (T) of 340-450 degrees C. The results show that when t = 3.5 min and T = 340 degrees C, a cracking reaction of coal occurs, while the oil yield was almost zero. As the residence time and temperature each increase, coal conversion and product yield exhibit different change patterns. Especially when t = 6.5 min and T = 450 degrees C: under these conditions, the coal conversion and oil yield reached 83.67 and 52.27 wt?%, respectively. To investigate the liquefaction kinetics, a 8-lump reaction kinetic model which follow first-order irreversible reactions (r = k(i) dC/dt) was developed to estimate the rate constants. The results indicated that the model is perfectly valid for the heating stage, and the yield of oil and gas were mainly from coal other than preasphaltene (PAA).