雅克拉集气处理站洗涤罐的白色黏稠物分析及应对措施

ANALYSIS OF WHITE VISCOUS MATERIALS ON THE WASHING TANK OF YAKELA STATION AND COUNTERMEASURES

雅克拉集气处理站(简称雅站)原料气压缩机出口洗涤罐在运行中发现白色黏稠物,黏稠物堵塞洗涤罐现场液位计和排污阀,导致压缩机洗涤罐高液位停机,天然气被迫放空,轻烃收率降低,经济效益受损严重。文章从原料气压缩机运行情况、白色黏稠物溶解实验、操作方式等方面对雅站原料气压缩机停机原因进行分析,初步判定白色黏稠物为原料气中含有的长链高分子物质或是天然气中蜡质、重烃,经压缩机压缩、升温后产生的,并据此提出了减少或避免压缩机停机的应对措施。

White viscous materials were found in the washing tank at the outlet of the feed gas compressor of Yakela Gas Collection and Treatment Station.The liquid level gauge and blowdown valve of the washing tank were blocked by the viscous materials,which induced the shutdown of compressor at high level of washing tank.The natural gas was forced to vent and the light hydrocarbon yield reduced,which resulted in the serious damage to the economic benefits.This paper analyzes the reasons for the shutdown of the feed gas compressor at Yakela station from such aspects as the operation of the feed gas compressor,the dissolution experiment of white viscous materials and the operation mode.It is preliminarily determined that the whiteviscous materials are long-chain polymer substance contained in feed gas or wax and heavy hydrocarbon in natural gas,which is produced after compression and heating by compressor.Grounded in this,the paper proposes the countermeasures for reducing or avoiding the shutdown of compressors.