石油化工2018，Vol.47Issue(5)：426-430,5.DOI:10.3969/j.issn.1000-8144.2018.05.005
银改性介孔碳吸附脱硫
Research of adsorption desulfurization with silver modified mesoporous carbon
摘要
Abstract
A silver modified mesoporous carbon(Ag/CMK-3) was prepared with mesoporous carbon(CMK-3) as a carrier and AgNO3as an active component. Characterization of CMK-3,Ag/CMK-3 and the Ag/CMK-3 after the adsorption of dibenzothiophene(DBT) was performed by XRD, FTIR,TEM and N2adsorption-desorption. The experimental results showed that compared with the CMK-3,the Ag/CMK-3 was improved in saturated sulfur capacity and breakthrough sulfur capacity by 2.6 mg/g and 1.6 mg/g,respectively. The characterization results showed that the Ag/CMK-3 maintained the highly ordered mesoporous structure of the CMK-3,silver particles were homogeneously dispersed in channels of the CMK-3 and the particle size thereof could be controlled at about 2.5 nm;the surface acidity was increased,and the specific surface area,the pore size and the pore volume were reduced to some extent. Both silver particles and hydroxyl groups on the surface of the CMK-3 had chemical interactions with the DBT. Meanwhile,the ring-opening reaction of the DBT occurred in the process of adsorption,resulting in C—S bond rupture.关键词
二苯并噻吩/银改性/介孔碳/吸附脱硫Key words
dibenzothiophene/silver modification/mesoporous carbon/adsorption desulfurization分类
化学化工引用本文复制引用
吴晶,张志芳,杨丽娜,李剑..银改性介孔碳吸附脱硫[J].石油化工,2018,47(5):426-430,5.基金项目
辽宁省高等学校杰出青年学者成长计划项目(LJQ2015062) （LJQ2015062）
辽宁省科技厅项目(20170540585) （20170540585）
辽宁省教育厅项目(L2015296,L2016018) （L2015296,L2016018）
抚顺市科技计划项目(FSKJHT201376). （FSKJHT201376）
