液化气脱硫醇装置碱液再生高硫尾气的净化处理  

PURIFICATION OF HIGH SULFUR TAIL GAS FROM CAUSTIC REGENERATION OF LPG SWEETENING UNIT

作　　者：冯海春[1] 张苡源[1] 杨磊[1] 李凯[1] Feng Haichun;Zhang Yiyuan;Yang Lei;Li Kai(SINOPEC Qingdao Refining and Chemical Co.Ltd.,Qingdao,Shandong 266555)

机构地区：[1]中国石化青岛炼油化工有限责任公司,山东青岛266555

出　　处：《石油炼制与化工》2021年第5期103-107,共5页Petroleum Processing and Petrochemicals

摘　　要：液化气脱硫醇装置碱液再生单元的尾气硫含量较高,直接送至常减压蒸馏装置加热炉伴烧时将引起加热炉排放烟气中的SO_(2)浓度大幅上升,无法满足环保要求。通过对再生尾气进行离线模拟吸收试验,发现催化裂化柴油对再生尾气中的硫化物具有良好的吸收效果。依据试验结果对再生尾气系统进行脱硫改造,改造后加热炉外排烟气中的SO_(2)浓度大幅降低,满足国家和地方的相关排放标准要求。Due to the high content of sulfur in tail gas from caustic regeneration unit of LPG sweetening unit,the concentration of SO_(2)in the flue gas of heating furnace will increase greatly when it is sent directly to the heating furnace of atmospheric and vacuum distillation unit.The results of off-line simulated absorption experiments showed that FCC diesel had a good absorption effect on sulfur compounds in the regeneration tail gas.According to the test results,the flue gas desulfurization system was reformed,and the SO_(2)concentration in the flue gas discharged from the heating furnace was greatly reduced,which could meet the relevant national and local emission standards.

关 键 词：再生尾气 柴油吸收 加热炉 二氧化硫 

分 类 号：X742[环境科学与工程—环境工程]