文献类型：期刊文献

英文题名：Cu2+ Modified Silicalite-1/NaY Structure for the Adsorption Desulfurization of Dimethyl Disulfide from Methyl tert-Butyl Ether

作者：Yang, Chao[1];Meng, Xuan[1];Yi, Dezhi[1];Ma, Zhiming[1];Liu, Naiwang[1];Shi, Li[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2018

卷号：57

期号：28

起止页码：9162

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20182605368416);WOS:【SCI-EXPANDED(收录号:WOS:000439528000014)】；

基金：This project was financially supported by the National Science Foundation for Young Scientists of China (No. 21706065); the Open Project of State Key Laboratory of Chemical Engineering (SKL-ChE-18C02); the China Postdoctoral Science Foundation (No. 2017M621389), the Shanghai Sailing Program (No. 18YF1406300), and the Explore and Research Foundation for Youth Scholars of Ministry of Education of China (No. 222201814011).

语种：英文

外文关键词：Ethers - Ion exchange - Shells (structures) - Adsorption - Copper compounds - Metal ions - Sodium alloys - Desulfurization - Sulfur compounds - Ion sources - Silicate minerals - Binary alloys

摘要：Selective adsorption desulfurization of dimethyl disulfide (DMDS) from methyl tert-butyl ether (MTBE) has been studied on the silicalite-1/CuY core-shell composites. Different copper ion sources (CuCl2, Cu(NO3)(2), and CuSO4) were investigated to form CuY as the core by Cu2+ ion-exchange on NaY zeolite. These silicalite-1/CuY core-shell composites were synthesized at the mass ratio of tetraethyl orthosilicate (TEOS)/tetrapropylammonium hydroxide (TPAOH)/ethanol/H2O/CuY = 20 g:19 g:17 g:87 g:5 g. Results showed that the core-shell Y-CuCl2 displayed the best performance in desulfurization of DMDS with a sulfur adsorption capacity of 32.882 mg(s)/g(adsorbent), owing to its significant mass gain and compact coatings after being coated by silicalite-1 on Y-CuCl2. Also, the preparation process of CuY and the shape selective adsorption mechanism of desulfurizing DMDS from MTBE on the silicalite-1/CuY core-shell composites were expounded.