文献类型：期刊文献

英文题名：Effect of solvent on the viscosity changes of coal-oil slurry under high temperature-high pressure during heating

作者：Ren, Yingjie[1,2];Song, Lei[2];Zhang, Dexiang[2];Gao, Jinsheng[2];Xu, Hong[1]

机构：[1]E China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Dept Chem Engn Energy Resources, Shanghai 200237, Peoples R China

年份：2009

卷号：4

期号：5

起止页码：744

外文期刊名：ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING

收录：;EI(收录号：20100212624254);WOS:【SCI-EXPANDED(收录号:WOS:000271441300040)】；

基金：This study was supported by the National Development Programming of Key Fundamental Researches of China (2004CB217601), Chinese National Programs for High Technology Research and Development (863 Plan) (2006AA05Z314) and Shanghai Leading Academic Discipline Project (B506).

语种：英文

外文关键词：coal-oil slurry; viscosity; high temperature and high pressure; heating; coal direct liquefaction

摘要：Heating coal-oil slurry is an important step in direct coal liquefaction. Some physical and chemical properties and the viscosity of coal-oil slurry will be the changes in the heating process. A self-manufactured rotary viscometer that can measure the viscosity of coal slurry at high-pressure temperature was designed. Two kinds of solvents including, anthracene oil, Shenhua recycled oil (the catalytic hydrogenation products of Shenhua direct coal liquefaction) and Yanzhou coal were used. The results show that the viscosity of Yanzhou coal-anthracene oil and Shenhua recycled oil slurry decrease firstly with the decreasing of solvent viscosity, then increase with measuring temperature for the absorption and volatilization of the solvent in atmosphere. Both of them have a viscosity peak with increasing measuring temperature in atmosphere. However, the Yanzhou coal-anthracene oil slurry has a viscosity peak at about 583 K under high pressure during heating, while the Yanzhou coal-Shenhua recycled oil slurry does not have a viscosity peak, but coke deposits appear at 623 K and above, under high pressure. In addition, the viscosity-temperature characteristics of thermally treated coal-oil Slurry at different temperatures are the same; both have a viscosity peak with increasing heating temperature at the same measuring temperature. (c) 2009 Curtin University of Technology and John Wiley & Sons. Ltd.