乙烯装置冷箱甲醇清洗问题探讨

Discussion on Problems in Methanol Cleaning of Cold Box in Ethylene Plant

介绍了中沙(天津)石化有限公司1000 kt/a乙烯装置2016年检修冷箱甲醇清洗情况,通过对NO x引起危险的原理、甲醇清洗方案制定、工艺系统处理、清洗质量管控等进行总结,根据清洗中出现的问题,制定了相应的措施,保证了冷箱甲醇清洗工作的顺利完成。

This paper introduces the methanol cleaning of cold box during the overhaul of the 1. 0 Mt/a ethylene plant at SINOPEC SABIC Tianjin Petrochemical Co.,Ltd. in 2016. By summarizing the principle of NO_x causing danger,the development of methanol cleaning scheme,the treatment of process system and the quality control of cleaning,some corresponding measures are formulated against the problems emerged in the cleaning,thus ensuring the smooth completion of the methanol cleaning of cold box.