催化裂化液化气脱硫存在问题与改进措施  

Analysis and Improvement Measures of FCC LPG Desulphurization

作　　者：陈正朝 Chen Zhengzhao(Sinopec Baling Company,Yueyang Hunan 414014,China)

机构地区：[1]中国石化巴陵分公司炼油事业部,湖南岳阳414014

出　　处：《石油石化绿色低碳》2018年第3期48-52,共5页Green Petroleum & Petrochemicals

摘　　要：介绍了液化石油气(LPG)脱硫主要技术和特点,分析了巴陵石化公司26.8万t/a LPG脱硫装置存在问题,提出以胺法脱H2S、纤维膜脱硫醇和纤维膜水洗的组合工艺,并进行了工业应用。工业应用实践表明:采用该组合工艺脱硫处理后,LPG中H_2S含量小于1μg/g,硫醇稳定控制在10μg/g以下,碱液消耗由1.88 kg/t LPG下降到0.60 kg/t LPG,除盐水消耗由56 kg/t LPG下降到33 kg/t LPG。This paper is to outline main technologies and features of liquefied petroleum gas （LPG） desulfurization, analyze the problems existing in the 268 kt/y LPG desulfurization unit of Baling petrochemical company, and thus propose a process combination of amine de-H2S, fiber membrane de-mercaptan and fiber membrane washing. Industrial applications show that the process combination can cut H2S in the LPG down to less than 1 μg/g, control mercaptan in the LPG below 10 μg/g, reduce alkali consumption from 1.88 kg/t LPG to 0.60 kg/t LPG, and reduce water consumption for desalination from 56 kg/t LPG to 33 kg/t LPG.

关 键 词：LPG 脱硫 纤维膜 节能减排 

分 类 号：TE624.5[石油与天然气工程—油气加工工程]