低温甲醇洗工艺中氨冷器泄漏的危害

The Hazzard of Ammonia Chiller Leakage in Rectisol Process

随着煤化工装置向大型化、智能化、自动化发展,粗煤气净化工艺多采用低温甲醇洗技术脱除粗煤气中硫、二氧化碳等组分,脱除后的净化气可以作为生产甲醇、醋酸、乙二醇、烯烃、制氢气等多种基础工业原料气。由于氨压缩制冷工艺成熟,操作稳定,液氨作为冷媒介质,能为低温甲醇吸收液提供充足的低温冷量,在大型煤制气装置中得到广泛的应用。

With the large-scale,intelligent and automation development of coal chemical plants,the Rectisol process is often adopted in crude gas purification process to remove sulfur,CO 2 and other components in crude gas.The purified gas can be used to produce methanol,acetic acid,glycol,olefin and hydrogen as basic industrial raw gas.Due to mature ammonia compression refrigeration technology and stable operation,liquid ammonia,as a cold medium,can provide sufficient low temperature cooling capacity for methanol absorbent at low temperature and is widely used in large coal-to-gas plants.