文献类型：期刊文献

英文题名：Screening deep eutectic solvents for extractive desulfurization of fuel based on COSMO-RS model

作者：Cheng, Hongye[1];Liu, Chongyang[1];Zhang, Jingjing[1];Chen, Lifang[1];Zhang, Bingjian[2];Qi, Zhiwen[1]

机构：[1]East China Univ Sci & Technol, Max Planck Partner Grp, State Key Lab Chem Engn, Sch Chem Engn, Shanghai 200237, Peoples R China;[2]Sun Yat Sen Univ, Sch Chem Engn & Technol, Guangdong Engn Technol Res Ctr Petrochem Energy C, 135 Xingang West Rd, Guangzhou 510275, Guangdong, Peoples R China

年份：2018

卷号：125

起止页码：246

外文期刊名：CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION

收录：;EI(收录号：20180904833026);WOS:【SCI-EXPANDED(收录号:WOS:000429890900026)】；

基金：This work is supported by National Natural Science Foundation of China (21776074) and Shanghai Committee of Science and Technology (16dz1206203).

语种：英文

外文关键词：Deep eutectic solvent; COSMO-RS; Dibenzothiophene; alpha-profile; Extractive desulfurization

摘要：Screening deep eutectic solvent (DES) is significant for separation process, due to its large number of potential combinations. In this work, 49 DESs were screened for the extractive desulfurization based on the COSMO-RS model. The distribution coefficient, selectivity, and performance index were derived from the mass-based liquid liquid equilibrium of DES involved systems. DES TBPB:DMF(1:3) showed the highest performance index and was screened as the extractive solvent. Its performance was interpreted from the analysis of its alpha-profile and alpha-potential, and its desulfurization ratio can reach up to 82.1%, determined by experiment, when the initial sulfur content in the model fuel was 500 ppm. After 3 stages of extraction, the sulfur content was remarkably reduced to < 10 ppm. The desulfurization ratio kept almost constant after 5 regeneration cycles, indicating its excellent reusability.