天然气处理厂脱甲烷塔CO_2冻堵的规律及解决方案研究  

Research on CO_2 freeze blocking law and solutions for demethanizing tower in natural gas processing plant

作　　者：程振华[1] 

机构地区：[1]中原油田分公司天然气处理厂,河南濮阳457162

出　　处：《现代化工》2010年第8期80-82,共3页Modern Chemical Industry

摘　　要：中原油田天然气处理厂的天然气处理装置属于中压深冷轻烃回收装置。由于脱甲烷塔塔顶操作温度较低,经常出现CO2冻堵的现象,给装置的连续安全平稳运行带来很大的隐患。通过研究原料气中CO2体积分数不同时的冻堵规律,提出了通过引入防冻介质丁烷等烃类物质来防止脱甲烷塔顶CO2冻堵的解决方案。The natural gas treatment device of Zhongyuan Oilfield is a medium-pressure cryogenic light hydrocarbon recovery device. Owing to the low operating temperature at the top of demethaning column, blocking of frozen CO2 often occurred in demethaning column, thus great hidden danger to the smooth and safety operation of the device has been brought. This study is focused on the freeze blocking law with different CO2 content in raw natural gas and solutions to dissolve CO2 freeze blocking at the top of demethaning tower proposed by adding butane or other hydrocarbon substances.

关 键 词：冻堵 脱甲烷塔 轻烃回收 二氧化碳 天然气处理 研究 

分 类 号：TE64[石油与天然气工程—油气加工工程]