化工进展 ›› 2019, Vol. 38 ›› Issue (05): 2515-2520.DOI: 10.16085/j.issn.1000-6613.2018-2315

• 应用技术 • 上一篇    下一篇

CO2回收液化工艺的优化

陆诗建1,2(),高丽娟1,2,彭松水3,赵东亚1(),王鑫1,朱全民1   

  1. 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
  • 收稿日期:2018-11-27 修回日期:2019-01-11 出版日期:2019-05-05 发布日期:2019-05-05
  • 通讯作者: 赵东亚
  • 作者简介:<named-content content-type="corresp-name">陆诗建</named-content>(1984—),男,博士研究生,主要从事CCUS工程技术研究。E-mail:<email>lushijian88@163.com</email>。

Optimization of CO2 recovery process

Shijian LU1,2(),Lijuan GAO1,2,Songshui PENG3,Dongya ZHAO1(),Xin WANG1,Quanmin ZHU1   

  1. 1. China University of Petroleum(East China), Qingdao 266580, Shandong, China
    2. Sinopec Energy and Environmental Engineering Co. , Ltd. , Dongying 257026, Shandong, China
    3. Chun Liang Oil Production Plant,Shengh Oilfield Branch, Boxing 256504, Shandong, China
  • Received:2018-11-27 Revised:2019-01-11 Online:2019-05-05 Published:2019-05-05
  • Contact: Dongya ZHAO

摘要:

在液化站CO2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℃。

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

Abstract:

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℃.

Key words: carbon dioxide, low temperature fractionation, ammonia refrigeration, influencing factors, operation parameters, simulation, optimization

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