Improved refrigeration process for mixed refrigerants in ethane recovery process from rich gas
JIANG Hong1, LI Hao-yu1, HU Cheng-xing2, WANG Jin-bo1
1. Petroleum Engineering School, Southwest Petroleum University, Chengdu 610500, China; 2. Oil and Gas Field Productivity Construction Division, PetroChina Tarim Oilfield Company, Korla 841000, China
Abstract: 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, 李浩玉, 胡成星, 王金波. 富气乙烷回收流程混合冷剂制冷改进工艺[J]. 现代化工, 2021, 41(4): 218-223.
JIANG Hong, LI Hao-yu, HU Cheng-xing, WANG Jin-bo. Improved refrigeration process for mixed refrigerants in ethane recovery process from rich gas. Modern Chemical Industry, 2021, 41(4): 218-223.
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