摘要
高含H_2S气田集输站场内原料气分离器在气水分离过程中产生的气田水,在低压闪蒸过程中会闪蒸出大量H_2S等有毒气体,采用常规的燃烧排放方式处置这部分气体,所产生的SO_2浓度远远超过了国家的相关标准。采用HYSYS及PROMAX等软件建模分析气田水的闪蒸气与原料气中H_2S含量的关系,通过理论计算闪蒸气燃烧所产生的SO_2浓度,提出采用金属隔膜式压缩机将闪蒸出的H_2S等酸性气体增压回流至原料气管线,一同输送至天然气净化厂进行脱硫及硫磺回收处理,实现高含H_2S气田集输站场闪蒸气体零排放。
The produced water from feed gas separator in high H2 S gas gathering station will produce a lot of toxic gas in the process of low pressure flash. Application of conventional combustion emission way in such gas treatment will produce SO2 concentration far exceeding requirements specified in relative national standards. Applied is such software as HYSYS and PROMAX for modeling analysis on relationship between H2 S content of flash gas and feed gas in produced water,obtained is the SO2 concentration through theoretical calculation and it is proposed that metal diaphragm compressor is adopted to pressurize sour gas produced in flash process,such as H2 S,make it flow back to the feed gas pipeline and transport it together with feed gas to gas purification plant for sulfur removal and sulfur recovery. This process can achieve zero emission of flash gas in high H2 S gas field gathering station.
出处
《天然气与石油》
2013年第5期94-96,11,共3页
Natural Gas and Oil
基金
中国石油天然气集团公司课题"高含硫高含二氧化碳气田地面工程关键技术及设计规范研究"(KY2011-39-0007)
关键词
气田水
闪蒸气
H2S
酸气压缩机
Produced water
Flash gas
H2 S
Sour gas compressor
