CAJ | 학술논문

大型天然气处理装置普遍采用醇胺法工艺，目前主要使用 MDEA 及其配方溶剂对酸性天然气进行净化处理。由于 MDEA 溶液本身抗污染能力存在不足，加之醇胺溶液的降解、变质、腐蚀等因素，溶液发泡的情况时有发生，影响了装置的平稳操作，导致产品气不合格，造成溶剂大量损失，严重时甚至引起装置停车。从发泡机理入手，通过开展大量实验，系统地评价了 MDEA 溶液系统中存在的多种杂质对脱硫溶液发泡的影响，对实际生产可起到一定的借鉴作用。
대형천연기처리장치보편채용순알법공예，목전주요사용 MDEA 급기배방용제대산성천연기진행정화처리。유우 MDEA 용액본신항오염능력존재불족，가지순알용액적강해、변질、부식등인소，용액발포적정황시유발생，영향료장치적평은조작，도치산품기불합격，조성용제대량손실，엄중시심지인기장치정차。종발포궤리입수，통과개전대량실험，계통지평개료 MDEA 용액계통중존재적다충잡질대탈류용액발포적영향，대실제생산가기도일정적차감작용。
Alkylol amine technique is adopted at natural gas processing plant in a large scale,and MDEA or formula solvents are mainly used to purify sour natural gas.Because of the poor anti-pollu-tion ability of MDEA,as well as the degradation,deterioration and corrosion of alkanolamine solu-tion,solution foaming always occurs,which affects the smooth operation of the unit and may even lead to substandard product gas,solvents loss and plant shutdown.In order to solve the problem, many experiments were carried based on foaming mechanism,and the influence of different impurities in MDEA on foaming of desulfurization solution were systematic analyzed,which would provide refer-ence for actual production.