涠洲终端天然气处理装置改造工艺计算研究

Process Calculation Study on Weizhou Termination Gas Treatment Facility Reconstruction

关键词:  天然气处理 丙烷辅助制冷 凝液分馏 脱乙烷塔顶冷凝温度 方案优化

Key words:  gas treatment, propane auxiliary refrigeration , condensate fractionation, deethanizer condensation temperature, scheme optimization

摘要:

中国海洋石油涠洲终端处理厂天然气处理装置采用膨胀机外加丙烷辅助制冷工艺，装置投产一段时间后发现原料气中重烃含量较多，液化石油气跑损严重。本文对造成液化石油气跑损的主要原因进行了分析，通过计算研究提出了适用的工艺改造方案，可以有效地改善装置运行状况，提高液化石油气回收率，增加液化石油气产量，从而增加经济效益。

Abstract:

The expander and the propane auxiliary refrigeration process are applied for CNOOC Weizhou Ter-mination Gas Treatment Facility. However, after the facility was put into production, it has been found that the content of heavy hydrocarbon in feed gas is qui