引用本文:胡天友,王晓东,贾勇,范锐,何金龙,陈庆梅,等. 大型天然气净化厂硫磺回收加氢尾气深度脱硫技术研究及工业应用[J]. 石油与天然气化工, 2018, 47(4): 1-5.
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大型天然气净化厂硫磺回收加氢尾气深度脱硫技术研究及工业应用
胡天友1,王晓东2,贾勇2,范锐3,何金龙1,陈庆梅1,李小云1,杨超越1
1.中国石油西南油气田公司天然气研究院 ;2.中国石油西南油气田公司重庆天然气净化总厂 ;3.中国石油西南油气田公司气田开发管理部
摘要:
针对硫磺回收加氢尾气脱硫溶剂在低压下脱硫效果不理想导致排放尾气中SO2质量浓度较高的问题,研究开发出了CT8-26加氢尾气深度脱硫溶剂,并在遂宁龙王庙天然气净化厂尾气处理装置上得到工业应用。应用结果表明,在天然气净化厂气质条件下,可使脱硫后加氢尾气中的H2S质量浓度＜20 mg/m3,能显著降低排放尾气中的SO2质量浓度。
关键词:  加氢尾气  硫磺回收  深度脱除H2S溶剂  选择性脱硫  SO2减排
DOI：10.3969/j.issn.1007-3426.2018.04.001
分类号:
基金项目:国家“十三五”重大科技专项“四川盆地大型碳酸盐岩气田开发示范工程”(2016ZX05052)
Study and industrial application of deep desulfurization technology in hydrogenation tail gas treatment of sulfur recovery units in large scale natural gas purification plant
Hu Tianyou1, Wang Xiaodong2, Jia Yong2, Fan Rui3, He Jinlong1, Chen Qingmei1, Li Xiaoyun1, Yang Chaoyue1
1. Research Institute of Natural Gas Technology, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan, China;2. Chongqing Natural Gas Purification Plant General, PetroChina Southwest Oil & Gasfield Company, Chongqing, China;3. Department of Developing Management, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan, China
Abstract:
The effect of desulfurization solvent for hydrogenation tail gas of Claus sulfur recovery process under low pressure was unsatisfactory, which led to higher SO2 mass concentration in discharged tail gas. To deal with this problem, a new serial of hydrogenation tail gas deep desulfurization solvent CT8-26 was developed and applied on the tail gas treatment unit of Suining Longwangmiao Natural Gas Purification Plant. The results indicated that under the feed gas condition of natural gas purification plant, H2S mass concentration in desulfurized tail gas could be reduced below 20 mg/m3, and therefore the SO2 mass concentration in discharged tail gas would be reduced evidently.
Key words:  hydrogenation tail gas  sulfur recovery  H2S deep removal solvent  selective desulfurization  SO2 emission reduction