文献类型：期刊文献

英文题名：Effect of Recycle Solvent Hydrotreatment on Oil Yield of Direct Coal Liquefaction

作者：Gao, Shansong[1];Zhang, Dexiang[1];Li, Kejian[2]

机构：[1]E China Univ Sci & Technol, Sch Resources & Environm Engn, Shanghai 200237, Peoples R China;[2]Natl Engn Lab Direct Coal Liquefact, Shanghai 201108, Peoples R China

年份：2015

卷号：8

期号：7

起止页码：6795

外文期刊名：ENERGIES

收录：;EI(收录号：20153301178913);WOS:【SCI-EXPANDED(收录号:WOS:000359897800028)】；

基金：This study was supported by Science and Technology Development Department of China Shenhua Group Corporation (SHJT-13-09).

语种：英文

外文关键词：direct coal liquefaction; solvent; continuous device; hydrogen-donating; catalytic hydrotreating

摘要：Effects of the recycle solvent hydrotreatment on oil yield of direct coal liquefaction were carried out in the 0.18 t/day direct coal liquefaction bench support unit of National Engineering Laboratory for Direct Coal Liquefaction (China). Results showed that the hydrogen-donating ability of the hydrogenated recycle solvent improved and the hydrogen consumption of solvent hydrotreatment was increased by decreasing liquid hourly space velocity (LHSV) from 1.5 to 1.0 h(-1) and increasing reaction pressure from 13.7 to 19.0 MPa. The hydrogen-donating ability of the hydrogenated recycle solvent was enhanced, thus promoting the oil yield and coal conversion of the liquefaction reaction. The coal conversion and distillates yield of coal liquefaction were increased from 88.74% to 88.82% and from 47.41% to 49.10%, respectively, with the increase in the solvent hydrotreatment pressure from 13.7 to 19.0 MPa. The coal conversion and distillates of coal liquefaction were increased from 88.82% to 89.27% and from 49.10% to 54.49%, respectively, when the LHSV decreased from 1.5 to 1.0 h(-1) under the solvent hydrotreatment pressure of 19.0 MPa.