文献类型：期刊文献

中文题名：Simultaneous recovery of carbon and sulfur resources from reduction of CO_2 with H_2S using catalysts

英文题名：Simultaneous recovery of carbon and sulfur resources from reduction of CO_2 with H_2S using catalysts

作者：Hui Su[1];Yuyang Li[1];Ping Li[1];Yongxiu Chen[1];Zhizhi Zhang[2];Xiangchen Fang[2]

机构：[1]State Key Laboratory of Chemical Engineering, East China University of Science and Technology;[2]Fushun Research Institute of Petroleum & Petrochemicals, Sinopec

年份：2016

卷号：25

期号：1

起止页码：110

中文期刊名：Journal of Energy Chemistry

外文期刊名：能源化学（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2015_2016】；

基金：financial supports from the Fushun Research Institute of Petroleum&Petrochemicals(no.KG12009);the Natural Science Foundation of China(no.21276077);the Fundamental Research Funds for Central Universities(no.WG1213011)

语种：英文

中文关键词：Carbon dioxide Hydrogen sulfide Simultaneous recovery Reduction Catalyst

外文关键词：Carbon dioxide Hydrogen sulfide Simultaneous recovery Reduction Catalyst

摘要：An approach to the simultaneous reclamation of carbon and sulfur resources from CO2 and H2S has been proposed and effectively implemented with the aid of catalysts. A brief thermodynamic study reveals the potential of direct reduction of CO2 with H2S（15：15 mol% balanced with N2） for selective production of CO and elemental sulfur. The experiments carried out in a fixed-bed flow reactor over the temperature range of 400–800 °C give evidence of the importance of the employment of catalysts. Both the conversions of the reactants and the selectivities of the target products can be substantially promoted over most catalysts studied. Nevertheless, little difference appears among their catalytic performance. The results also prove that the presence of CO2 can remarkably enhance H2S conversion and the sulfur yield in comparison with H2S direct decomposition. A longtime reaction test on Mg O catalyst manifests its superior durability at high temperature（700 °C） and huge gas hourly space velocity（100,000 h-1）. Free radicals initiated by catalysts are supposed to dominate the reactions between CO2 and H2S.
An approach to the simultaneous reclamation of carbon and sulfur resources from CO2 and H2S has been proposed and effectively implemented with the aid of catalysts. A brief thermodynamic study reveals the potential of direct reduction of CO2 with H2S（15：15 mol% balanced with N2） for selective production of CO and elemental sulfur. The experiments carried out in a fixed-bed flow reactor over the temperature range of 400–800 °C give evidence of the importance of the employment of catalysts. Both the conversions of the reactants and the selectivities of the target products can be substantially promoted over most catalysts studied. Nevertheless, little difference appears among their catalytic performance. The results also prove that the presence of CO2 can remarkably enhance H2S conversion and the sulfur yield in comparison with H2S direct decomposition. A longtime reaction test on Mg O catalyst manifests its superior durability at high temperature（700 °C） and huge gas hourly space velocity（100,000 h-1）. Free radicals initiated by catalysts are supposed to dominate the reactions between CO2 and H2S.