文献类型：期刊文献

英文题名：Competition between reactive adsorption desulfurization and olefin hydrogenation over the NiO/ZnO-Al2O3-SiO2 adsorbent

作者：Ju, Feng[1];Li, Lan[1];Wu, Tian[1];Sun, Yao[1];Ling, Hao[1]

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

年份：2022

卷号：46

期号：17

起止页码：8144

外文期刊名：NEW JOURNAL OF CHEMISTRY

收录：;EI(收录号：20221912070417);WOS:【SCI-EXPANDED(收录号:WOS:000781221900001)】；

基金：This work is supported by the National Natural Science Foundation of China (22008071).

语种：英文

外文关键词：Fluid catalytic cracking - Fluidization - Hydrogenation - Sulfur compounds - Silica - Nickel oxide - Olefins - Adsorption - Fluidized beds

摘要：Reactive adsorption desulfurization (RADS) has high desulfurization activity and low olefin saturation advantages for upgrading the fluidized catalytic cracking of gasoline. The effect of reaction temperature on RADS over the NiO/ZnO-Al2O3-SiO2 adsorbent was investigated. At 350 degrees C, the adsorbent has good desulfurization performance but the olefin hydrogenation saturation is high, especially for C4-C7 olefins. The comparative desulfurization experiment results demonstrate that there is competitive adsorption between sulfides and olefins on the active sites. However, the amount of sulfides adsorbed by the active sites of the adsorbent is obviously more than that of olefins, which means that the hydrogenation of olefins can hardly inhibit the desulfurization reaction. The increase in Ni loading can promote the desulfurization performance but also greatly aggravate olefin hydrogenation.