油井采收气中CO_2分离技术  

CO_2 separation technology from oil well gas

作　　者：张书勤 胡耀强 张春威 鲍文 王涛 ZHANG Shu-qin;HU Yao-qiang;ZHANG Chun-wei;BAO Wen;WANG Tao(Shaanxi Yanchang Petroleum（Group）Co.,Ltd.Research Institute,Xi＇ an 710075,China)

机构地区：[1]陕西延长石油(集团)有限责任公司研究院,陕西西安710075

出　　处：《应用化工》2018年第6期1241-1245,共5页Applied Chemical Industry

基　　金：国家科技支撑计划项目(2012BAC26B00);延长石油集团项目(YCSY2018KY-B-19;ycsy2017ky-B-11)

摘　　要：将CO_2-EOR采出气中的CO_2回收利用是该技术规模化应用的关键。目前CO_2的回收技术有吸收法、膜分离法、低温冷凝法、水合物法、活性炭吸附法、微孔分离等。分析了CO_2驱采出气的特点,总结了各分离方法的研究结论。根据油田井场的生产管理现状认为,膜分离-低温回收-回注的组合工艺最为适用。该法分离程度高、占地面积小、运行稳定性好、适应性强。The recycling and utilization of CO2 produced oil well is the key of CO2-EOR（ enhanced oil recovery）. CO2 recycle technology includes solution absorption,membrane separation,low temperature condensation,hydrate separation,activated carbon adsorption,and micro-porous separation,and so on. The compound of produced gas of oilfields is analyzed firstly,and then study conclusion of all CO2 separation methods in literatures are summarized. According to well site feature,the suitable method is the combination of membrane separation,low temperature recycle,and re-injection well. Its advantage is high degree of separation,good stability,and well adaption.

关 键 词：油井采出气 二氧化碳 膜分离 低温冷凝 CO2回注 

分 类 号：TQ09[化学工程]