燃料化学学报2021，Vol.49Issue(4)：431-435,5.DOI:10.1016/S1872-5813(21)60049-X
煤基前沥青烯的FeS+S催化加氢动力学研究
Hydroliquefaction kinetics of coal-derived preasphaltenes catalyzed by FeS and S
摘要
Abstract
Hydroliquefaction behavior of preasphaltenes, derived from direct coal liquefaction, was carried out in a 30 mL autoclave with FeS + S catalyst and tetralin at initial hydrogen of 5.0 MPa, residence time of 0?60 min and reaction temperature of 380?440 ℃ in order to optimize the conditions of direct coal liquefaction and improve oil yield. The products distribution and kinetic parameters of preasphaltenes catalytic hydroliquefaction were investigated. A new kinetic model was established to simulate the preasphaltenes hydroliquefaction catalyzed by FeS + S catalyst using lump kinetic model. It was found that preasphaltenes were hydroliquefaction into asphaltenes and char directly, and then asphaltenes were hydrocracked into oil + gas products. Regressive reactions of preasphaltenes to char and asphaltenes to preasphaltenes occurred at higher temperatures. Higher temperature and longer time were favorable for increasing the conversion of preasphaltenes and the oil +gas yield. The hydroliquefaction of preasphaltenes under 440 ℃ and 60 min reached 79.45％ with 34.7％ of oil + gas yield. The hydroliquefaction conversions calculated from the model agreed well with the experimental data, and the activation energies ranged within 50?245 kJ/mol.关键词
前沥青烯/加氢液化/动力学/活化能Key words
preasphaltenes/hydroliquefaction/kinetic/activation energies分类
化学化工引用本文复制引用
康士刚,闫洪雷,王晓玲,高彬,水恒福,王知彩,雷智平,任世彪,颜井冲,李占库,潘春秀..煤基前沥青烯的FeS+S催化加氢动力学研究[J].燃料化学学报,2021,49(4):431-435,5.基金项目
The project was supported by the National Natural Science Foundation of China(Grants 21776001,U1710114,21808002,21878001,21978002,21978003,22008001,22078002). （Grants 21776001,U1710114,21808002,21878001,21978002,21978003,22008001,22078002）
