a study on the hydrotreating of coal hydroliquefaction residue and its kinetics研究煤的加氢处理hydroliquefaction残留及其动力学.pdfVIP

Energies 2010, 3, 1576-1585; doi:10.3390/en3091576 OPEN ACCESS energies ISSN 1996-1073 /journal/energies Article A Study on the Hydrotreating of Coal Hydroliquefaction Residue and its Kinetics Jue Huang, Xilan Lu, Dexiang Zhang and Jinsheng Gao * Department of Chemical Engineering for Energy Resources, East China University of Science and Technology, shanghai, China; E-Mails: huangj_edward@(J.H.); lxl@(X.L.L.); zdx@(D.X.Z.) * Author to whom correspondence should be addressed; E-mail: gjs@; Tel.: +86 21 Received: 19 August 2010; in revised form: 26 August 2010 / Accepted: 30 August 2010 / Published: 09 September 2010 Abstract: Hydro-conversion of coal hydroliquefaction residue obtained from a 6t/day pilot plant of Shenhua Group in Shanghai was carried out under the hydrotreating condition. The coal hydroliquefaction residue and its product were extracted in sequence with n-hexane, toluene and tetrahydrofuran in a Soxhlet apparatus. The n-hexane soluble fractions increased with the increase of reaction temperature and time. Its amount increased from 14.14% to a maximum of 40.86% under the conditions of 470 °C and 30 min, which meant that moderate extension of coal residence time in the coal hydroliquefaction reactor is beneficial to the increase of oil yield. A 4-lumped kinetic model of coal hydroliquefaction residue hydro-conversion was performed using solubility-based lumped fractions. In the model, the tetrahydrofuran