摘要
闪蒸作为天然气净化工艺中的一个重要环节,闪蒸效果将直接影响脱碳和脱水溶液的再生品质,同时也会对闪蒸气和酸气的回收工艺带来一定的影响。以松南气田脱碳工艺为例,通过对闪蒸原理的分析,归纳出在闪蒸过程中溶液状态发生变化的规律,剖析了压力、时间和温度对闪蒸效果的影响原理,结合现场测试数据,得出闪蒸压力与闪蒸效果成反比,闪蒸时间、闪蒸温度与闪蒸效果成正比的结论,采取控制闪蒸压力0.4~0.6 MPa、闪蒸时间3~5 min等措施,可有效提升溶液的闪蒸效果,同时解决因闪蒸不良对尾气回收的影响。
Flashing is an important step in the process of natural gas treatment, and its effect directly
influences decarburization solution regeneration quality, dehydration solution regeneration quality,
flashing steam recycling process and acid gas recycling process. Taking the decarburization process of
Songnan Gas Field as an example, the solution state changing rule in the flashing process is concluded
through analyzing the flashing principle and the influence of pressure, time and temperature on the
flashing effect is analyzed.Combined with field testing data,it is concluded that flashing pressure is inversely
proportional to flashing effect,and flashing time and temperature is proportional to flashing effect.
Measures such as to control the flashing pressure from 0.4 MPa to 0.6 MPa and flashing time from 3 min
to 5min can effectively improve the solution flashing effect, and the bad influence of poor flashing on
tail gas recycling can be eliminated.
出处
《油气田地面工程》
2017年第7期59-62,共4页
Oil-Gas Field Surface Engineering
关键词
天然气净化
脱碳工艺
闪蒸原理
闪蒸效果
技术方案
natural gas purification
decarburization process
flashing principle
flashing effect
technology scheme
