制冷剂回收再生的碳排放评估及经济性分析

我国已进入HCFCs制冷剂淘汰末期，并即将于2024年启动HFCs的产量和消费量削减。本文以制冷剂的回收再生过程为主要研究对象，基于LCCP气候性能模型，构建了制冷剂回收再生过程的碳排放量评估模型；分析了制冷剂回收再生的经济性；并对所构建模型，以汽车空调制冷剂R134a的回收再生为案例，计算其碳排放量及回收再生经济性。结果表明：本文案例中，对制冷剂进行回收再生处理可以减少当量CO2排放约42％，制冷剂回收再生的经济性能主要与再生后制冷剂单价及工人工资成本有关，工人工资按月最低工资标准时净化后制冷剂售价在11 元/kg（新制冷剂售价的50％）以上可在2年内开始盈利。

Carbon Emission Assessment and Economic Analysis of Refrigerant Recycling

China has entered the end of the hydrochlorofluorocarbon (HCFCs) refrigerant phase out, and will soon start to reduce its production and consumption of HFCs simultaneously in 2024. In this study the process of refrigerant recovery and regeneration is investigated. The carbon emission evaluation model for the process of refrigerant recovery and regeneration is constructed based on the life cycle climate performance model LCCP. The economy of the regeneration of refrigerant is analyzed, and the carbon emission and regeneration economy of the automobile air-conditioning refrigerant R134a is calculated using the evaluation model. The results show that the equivalent CO2 emissions can be reduced by approximately 42% by recycling the R134a refrigerant. The economic performance of refrigerant recycling is mainly dependent on the unit price of the refrigerant after regeneration and the wage cost of workers. When the monthly minimum wage standard is used, the price of the refrigerant after purification is more than 11 Yuan/kg (50% of the price of new refrigerant), and the process is profitable within two years.