双混合制冷剂天然气液化过程实验分析  

Experimental analysis of natural gas liquefaction process with double mixed refrigerant

作　　者：李玉星 常学煜 朱建鲁 韩辉 孙崇正 董龙飞 陈杰[2] 曾伟平[2] 

机构地区：[1]中国石油大学(华东)储运与建筑工程学院山东省油气储运安全省级重点实验室青岛市环海油气储运技术重点实验室,山东青岛266580 [2]中海石油气电集团有限责任公司技术研发中心,北京100028

出　　处：《化工学报》2017年第5期2122-2131,共10页CIESC Journal

基　　金：国家高技术研究发展计划项目(2013AA09A216);国家自然科学基金项目(51504278);山东省优秀中青年科学家科研奖励基金项目(BS2014ZZ009);中央高校基本科研业务费专项资金(16CX02003A)~~

摘　　要：浮式天然气液化装置(LNG-FPSO)具有便于迁移、设备可靠、安全性高等特点,适应于海上油气田的开发。而混合制冷剂流程效率高、处理量大,在海况较平稳、气田产量大的条件下具有明显优势。利用与中海石油气电集团技术研发中心合作研制的浮式双混合制冷剂液化实验装置来验证双混合制冷剂流程的准确性,并对目标气田的原料气产量、原料气入口温度及压缩机频率等进行敏感性分析,以及海上适应性进行研究评价。通过实验发现双混合冷剂液化工艺可满足平稳海况下大规模天然气液化处理,原料气温度、压力在一定范围内变化对流程影响较小,采用变频式压缩机可有效降低低负荷下系统能耗。With the advantage of easy to migration, reliable of equipment and high security features, LNG-FPSO has great significance for the development of offshore gas field. The DMR liquefaction process has high efficiency and large capacity, which has obvious advantages under the conditions of stable sea and large amount of gas. The research verified the accuracy of the double mixed refrigerant flow, using the floating DMR experimental device which belongs to CNOOC Gas Electric R ＆ D Center. The article analyzed the sensitivity of the NG＇s temperature, flow rate, and compressor frequency, and gave an assessment to the maritime adaptation. The experiment showed that the DMR process would be suitable in stable sea condition and mid to large-scale LNG production, and was not sensitive to the changes of gas temperature and pressure, it can effectively reduce the system energy consumption under low load by using inverter compress.

关 键 词：LNG-FPSO 天然气 DMR 模拟 实验验证 敏感性分析 海上适应性 节能降耗 

分 类 号：TB657.8[一般工业技术—制冷工程]