文献类型：期刊文献

英文题名：Removal of sulfur compounds from LPG by heteropoly acid-modified spent FCC catalyst

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

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

年份：2019

卷号：33

期号：4

外文期刊名：APPLIED ORGANOMETALLIC CHEMISTRY

收录：;EI(收录号：20190706496471);WOS:【SCI-EXPANDED(收录号:WOS:000464452800015)】；

基金：Open Project of State Key Laboratory of Chemical Engineering, Grant/Award Number: SKL-ChE-18C02; National Science Foundation for Young Scientists of China, Grant/Award Number: 21706065

语种：英文

外文关键词：desulfurization; liquified petroleum gas; spent FCC catalyst

摘要：Modified spent FCC catalysts were prepared and the desulfurization properties of these adsorbents were examined in this paper. The experiment data indicated that the spent FCC catalyst performed well in desulfurization after modification; the sulfur content in the liquified petroleum gas (LPG) dropped down to 5 similar to 10 mg.m(-3). X-Ray Fluorescence, X-ray diffraction, Nitrorms and Fourier transform infrared were applied to characterize these adsorbents. Results showed that the content of various metals in spent FCC catalyst was significantly higher than fresh catalyst; and the metals which deactivated the FCC catalysts became the active sites for desulfurization. In addition, a moderate amount of Lewis acid sites is advantageous to desulfurization while too many Lewis acid sites played a negative role.