摘要 低温甲醇洗是以甲醇为吸收剂在低温条件下进行物理吸收的过程,被广泛应用于工业气体的脱硫脱碳过程。阐述了低温甲醇洗工艺的基本原理,重点介绍和分析了低温甲醇洗一步法、两步法2种净化工艺流程;针对低温甲醇洗的应用及研究现状进行了综述,介绍了甲醇消耗偏高、冷量不足、冷量分配不匀等问题的解决方法和措施;指出采用二级液氨冷却循环、三级液氨冷却循环降低能耗的最新研究。最后对低温甲醇洗技术进行展望,为低温甲醇洗工艺技术的应用和研究提供参考。
关键词 :
低温甲醇洗 ,
物理吸收 ,
工艺流程 ,
研究进展
Abstract :Rectisol washing is a physical absorption process using methanol as the solvent, it's widely used in removal of carbon dioxide and hydrogen sulfide of industrial gases. The basic principle of rectisol washing process was introduced. Two kinds of purification process, the One-Stage process and Two-Stage process were introduced and analyzed particularly. The application and research progress were overviewed. The measures for solving the problems of high methanol consumption, lacking and non-uniform distribution of cooling capability were introduced. The ways of Two-Stage and Three-Stage liquid ammonia cooling recycle for reducing energy consumption were given. Finally, the future development of rectisol washing technology were prospected, it was provided reference for the application and research of rectisol washing technology.
Key words :
rectisol washing
physical absorption
purification process
research progress
作者简介 : 作者简介:石晓林(1992-),男,四川宜宾市人,硕士研究生。 E-mail:1061564993@qq.com
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