文献类型：期刊文献

英文题名：From waste to best: excellent desulfurization performance of spent FCC catalyst

作者：Su, Baochuan[1];Shi, Li[1];Meng, Xuan[1];Wang, Xin[1];Liu, Naiwang[1]

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

年份：2019

卷号：40

期号：1

起止页码：75

外文期刊名：JOURNAL OF SULFUR CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000455225400008)】；

基金：We are so grateful and want to extend our sincere appreciations for the financial support from China Postdoctoral Science Foundation [grant number 2017M621389], Shanghai Sailing Program [grant number 18YF1406300], and Explore and Research Foundation for Youth Scholars of Ministry of Education of China [grant number 222201814011].

语种：英文

外文关键词：Spent FCC catalyst; desulfurization; metal

摘要：Fluidized catalytic cracking (FCC) is an important link in heavy oil processing. Industrial FCC catalyst which mainly consists of molecular sieves, substrates and adhesives is used in large quantities every year. Spent FCC catalyst is one kind of hazardous solid waste that is hard to handle. In this paper, we used a spent FCC catalyst as a desulfurization adsorbent, and show that it displays advanced desulfurization property. Furthermore, regeneration experiment showed that calcination was an effective method to remove the sulfides adsorbed in spent FCC catalyst, after four cycles it still owned a high sulfur adsorption ability. The results of metal impregnation indicated that the high ability to remove sulfur in LPG was due to those metals deposited on WC. The sulfur removal further increased by calcination of the spent catalyst since carbon deposition on the catalyst surface which blocked the active sites was minimized by calcination, thus leading an increase in the number of active sites available. [GRAPHICS] .