文献类型：期刊文献

英文题名：Iron modified /ZrO2 in application of removing trace olefins from aromatics

作者：Ren, Kaiqing[1]; Liu, Jianfei[1]; Wang, Xin[1]; Shi, Li[1]; Meng, Xuan[1]; Liu, Naiwang[1]

机构：[1] The State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, China

年份：2019

卷号：37

期号：1

起止页码：8

外文期刊名：Petroleum Science and Technology

收录：EI(收录号：20190506460148)

语种：英文

外文关键词：Olefins - Ammonia - Catalyst activity - Hematite - Zirconia

摘要：A solid super-acid catalyst SO2-4 /Fe2O3-ZrO2 (FeSZ) was prepared by coprecipitation method to remove olefins from aromatics. Effects of iron sources and Fe2O3 content were studied. FeSZ and SO2-4 /ZrO2 (SZ) were characterized by XRD, FT-IR and NH3-TPD. The characterization of the catalysts revealed that the addition of iron purified the tetragonal phase of ZrO2, increased the strength of the acid sites. Catalytic activity test showed that FeSZ with 5 wt% Fe2O3, using Fe2 (SO4)3 as iron source, exhibited the highest activity for removal of olefins. Compared with SZ, the catalytic activity of FeSZ increased 6.1%. ? 2019, ? 2019 Taylor & Francis Group, LLC.