冷媒水综合利用方案分析

Analysis of comprehensive utilization plan for refrigerant water

为了提高中海石油宁波大榭石化有限公司冷媒水的利用率,对现有装置提出相应的利用方案,并采用流程模拟软件对各方案的改造效果进行了分析。结果表明:通过采用冷媒水替代重整再接触系统氨压机,以及利用冷媒水进行加氢脱硫干气轻烃分离,乙苯装置干气脱丙烯系统深冷分离,苯乙烯装置尾气压缩机入口深冷分离等方案,可解决加氢脱硫干气带烃、苯乙烯装置尾气压缩机超负荷等问题,并为企业增效2827万元/a。

In order to improve the utilization rate of refrigerant water in Daxie Petrochemical,CNOOC,corresponding utilization plans were proposed for the existing equipment,and the transformation effects of each plan were analyzed using process simulation software.The results showed that by using refrigerant water to replace the ammonia compressor in the recontact system of the reforming unit,as well as using refrigerant water for light hydrocarbon separation of desulfurization dry gas in the hydrogenation unit,deep cold separation of ethylbenzene unit dry gas deprropene system,and deep cold separation at the inlet of styrene unit tail gas compressor,the problems of heavy hydrocarbon carrying in the hydrogenation desulfurization dry gas and overload of styrene unit tail gas compressor could be effectively solved,and the efficiency of the enterprise could be increased by 28.27 million yuan/a.