CO_2回收液化工艺的优化  

Optimization of CO_2 recovery process

作　　者：陆诗建[1,2] 高丽娟 彭松水 赵东亚[1] 王鑫[1] 朱全民[1] LU Shijian;GAO Lijuan;PENG Songshui;ZHAO Dongya;WANG Xin;ZHU Quanmin(China University of Petroleum(East China),Qingdao 266580,Shandong,China;Sinopec Energy and Environmental Engineering Co.,Ltd.,Dongying 257026,Shandong,China;Chun Liang Oil Production Plant,Shengh Oilfield Branch,Boxing 256504,Shandong,China)

机构地区：[1]中国石油大学(华东),山东青岛266580 [2]中石化节能环保工程科技有限公司,山东东营257026 [3]胜利油田分公司纯梁采油厂,山东博兴256504

出　　处：《化工进展》2019年第5期2515-2520,共6页Chemical Industry and Engineering Progress

摘　　要：在液化站CO_2采集处理工程中,低温分馏及配套的氨制冷系统是核心工艺。基于此,采用HYSYS模拟软件研究计算了相应的工艺流程,通过研究分馏系统提纯塔塔压、理论塔板数和塔顶冷凝温度对产品能耗和放空气中甲烷含量的影响规律,得出了本工程适宜的提纯塔塔压为3.2MPa,理论塔板数为12块,适宜的塔顶冷凝温度为-25℃;通过研究蒸发式冷凝器的蒸发温度、冷凝温度以及经济器出口温度对氨制冷系统的影响规律,得出了设计条件下适宜的蒸发温度为-30℃,冷凝温度为39℃,经济器出口温度为10℃。In the CO2 acquisition and treatment project of the liquefaction station, low temperature fractionation and ammonia refrigeration system are the core processes. Is calculated using HYSYS simulation software based on this, the corresponding technological process, by studying the fractionation system purification tower, tower pressure, the theoretical plate number and the top of the tower condensing temperature on product energy consumption and the influence law of methane content in the object completely, it is concluded that the project is suitable for purification of tata pressure of 3.2 MPa,the theoretical plate number is 12, suitable tower condensing temperature is-25℃;By studying the evaporating temperature, condensing temperature and economizer exit temperature on the influence law of ammonia refrigeration system, the design is obtained under the condition of appropriate evaporating temperature was minus 30℃, condensing temperature is 39℃, economizer exit temperature of 10℃.

关 键 词：二氧化碳 低温分馏 氨制冷 影响因素 运行参数 模拟 优化 

分 类 号：TE348[石油与天然气工程—油气田开发工程]