论文类型：期刊论文
第一作者：Xian Li
通讯作者：Haoquan Hu
发表刊物：Energy & Fuels
刊物所在地：America
学科门类：理学
一级学科：化学
文献类型：J
卷号：87
页面范围：508-513
ISSN号：0887-0624
发表时间：2007-05-04
摘要：Direct liquefaction of Shenhua bituminous coal was carried out in a 500 ml autoclave with iron catalyst and coal liquefaction cycle-oil as solvent at initial hydrogen of 8.0 MPa, residence time of 0–90 min. To investigate the liquefaction kinetics, a model for heating-up and isothermal stages was developed to estimate the rate constants of both stages. In the model, the coal was divided into three parts, easy reactive part, hard reactive part and unreactive part, and four kinetic constants were used to describe the reaction mechanism. The results showed that the model is valid for both heating