针对乙烷回收传统闭式混合制冷冷剂配比困难、运行调节复杂等现状，提出了开式混合冷剂制冷的GLSP乙烷回收流程，为比较闭式、开式混合冷剂制冷循环两者之间的差异，对两者进行热力学分析发现，开式混合冷剂制冷的GLSP乙烷回收流程具有一定节能效果：综合能耗节约约0.9%，GFDA3损量减少约14%，且混合冷剂制冷循环有效能利用略优于闭式混合冷剂制冷循环。最后对提出的开式混合冷剂工艺进行特性及适应性分析发现，该开式混合冷剂制冷工艺较适合于超富气气质工况。

In view of the difficulty in refrigerant blending and complex regulation in operation for traditional closed mixed refrigeration system of ethane recovery process,GLSP ethane recovery process with open mixed refrigerant refrigeration system is proposed.In order to compare differences between two systems,thermodynamic analysis is performed and it is found that GLSP ethane recovery process with open mixed refrigerant refrigeration system has a certain energy saving effect.It can save overall energy consumption by about 0.9%,and reduce exergy loss by about 14%.In addition,the effective energy utilization of the open mixed refrigerant refrigeration cycle is slightly better than that of the closed mixed refrigerant refrigeration cycle.It is found through analyzing the characteristics and adaptability that the open mixed refrigerant refrigeration process is more suitable for ultra-rich gas conditions.

蒋洪(1965-),男,硕士,教授,研究方向为油气集输及处理、系统能量综合利用及节能、汞污染控制