引用本文:杨安,何金龙,刘可,高明. 炼油厂硫磺回收装置加氢尾气有机硫脱除溶剂研究[J]. 石油与天然气化工, 2021, 50(3): 14-19.
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炼油厂硫磺回收装置加氢尾气有机硫脱除溶剂研究
杨安1,2,何金龙1,2,刘可1,2,高明3
1.中国石油西南油气田公司天然气研究院;2.国家能源高含硫气藏开采研发中心 ;3.中国石油四川石化有限责任公司南充炼油厂
摘要:
针对GB 31570-2015《石油炼制工业污染物排放标准》对炼油厂硫磺回收装置尾气中SO2排放的严格要求,通过室内实验,研发出了对COS及H2S脱除性能良好的配方型脱硫溶剂。试验考察了MDEA质量分数、COS质量浓度等工艺条件对该溶剂脱除有机硫效果的影响。结果 表明,所选配方型脱硫溶剂可使炼油厂硫磺回收装置加氢尾气COS脱除率＞45%,H2S质量浓度＜10 mg/m3,满足炼油厂硫磺回收装置尾气超低排放要求。 
关键词:  炼油厂  硫磺回收  加氢尾气  配方溶剂  有机硫脱除  GB 31570-2015  SO2排放
DOI：10.3969/j.issn.1007-3426.2021.03.003
分类号:
基金项目:中国石油天然气股份有限公司重大科技专项“西南油气田天然气上产300亿立方米关键技术研究与应用——四川盆地气田开发地面系统安全清洁高效运行关键技术研究与应用”(2016E-0610)
Research on organic sulfide removal solvent from hydrogenation tail gas of sulfur recovery unit in refinery
Yang An1,2, He Jinlong1,2, Liu Ke1,2, Gao Ming3
1. Research Institute of Natural Gas Technology, PetroChina Southwest Oil ＆ Gasfield Company, Chengdu, Sichuan, China;2. National Energy R＆D Center of High Sulfur Gas Exploitation, Chengdu, Sichuan, China ;3. PetroChina Sichuan Petrochemical Co., Ltd., Nanchong Refinery, Nanchong, Sichuan, China
Abstract:
In order to meet the stricter requirements of GB 31570-2015 Emission Standard of Pollutants for Petroleum Refining Industry about SO2 emission from tail gas of sulfur recovery unit in refinery, the formula desulfurizing solvent with good removal performance for COS and H2S was developed through laboratory experiments. The effects of MDEA mass fraction and COS mass concentration etc. on the removal of organic sulfur were investigated. The results showed that the COS removal rate of hydrogenation tail gas of sulfur recovery unit in refinery could be more than 45% and the H2S mass concentration could be less than 10 mg/m3 by using the selected formula desulfurizing solvent, which could meet the ultra-low emission requirements of tail gas from sulfur recovery unit in refinery.
Key words:  refinery  sulfur recovery  hydrogenation process tail gas  formula solvent  organic sulfide removal  GB 31570-2015  SO2 emission