文献类型：期刊文献

中文题名：废FCC催化剂在LPG吸附脱硫中的资源化利用

英文题名：Resource utilization of spent FCC catalysts in LPG adsorption desulfurization

作者：Huang, Zhaohui[1]; Liu, Naiwang[2]

机构：[1] Sinopec Zhenhai Refining and Chemical Company, Zhenhai, 315207, China; [2] Research Institute of Petroleum Processing, East China University of Science and Technology, Shanghai, 200237, China

年份：2022

卷号：41

期号：1

起止页码：453

外文期刊名：Huagong Jinzhan/Chemical Industry and Engineering Progress

收录：EI(收录号：20220411536278)

语种：中文

外文关键词：Fluid catalytic cracking - Desulfurization - Heavy metals - Sulfur compounds - Adsorption - Fluidized beds

摘要：Metal contamination is an important factor leading to the deactivation of fluidized bed catalytic cracking (FCC) catalyst, and making full use of the deposited heavy metals is the key to utilization the spent FCC catalyst. In this paper, the waste FCC catalyst was proposed for the adsorption desulfurization of light oil. The removal of dimethyl disulfide in LPG was taken as the target to test the feasibility of using the spent FCC catalyst as desulfurizer. After removing the deposited carbon on the spent FCC catalyst surface, the desulfurization performance was improved obviously. Under the conditions of normal temperature and mass space velocity of 4.0h-1, the sulfide mass fraction in LPG was reduced from 382mg/m3 to 40mg/m3. The total mass fraction of lanthanum, iron, nickel, vanadium, calcium and antimony was increased from 10.2% in fresh catalyst to 46.6% in the calcined spent catalyst. The desulfurization ability was significantly improved after immobilizing the six metals on fresh catalyst separately. Results showed that the metals which lead to the deactivation of FCC catalyst had high desulfurization activity, and the utilization of spent FCC catalyst in LPG adsorption desulfurization has a good industrial application prospect. ? 2022, Chemical Industry Press Co., Ltd. All right reserved.