膜分离技术在H_2回收中的应用

结合成都科特瑞兴科技有限公司利用PRISM膜从合成氨驰放气、炼厂气以及甲醇驰放气和焦炉煤气中的H2回收技术,阐述了膜分离技术在H2回收领域中的重要应用,同时系统的介绍了膜的类型与选择依据,膜回收H2相关工艺流程,H2回收过程中应密切关注的问题等,并提出了相关的应对措施。

Application of Membrane Separations Technology on Recovering H2

The membrane separations technology has an important application in the field of recovering H2 from refinery gas,methanol synthesis releasing gas,coke oven gas and purge gas from ammonia synthesis loop on the basis of PRISM membrane used by Chengdu Kotteration Tech co.,LTD.The working principle of gas separation membrane is discussed systematically: driving force on the difference of mixed components' partial pressure on bilateral,dependence on the difference of adsorption capacity on Polymer surface and diffusion-dissolution coefficient in the membrane,the different components of gas mixture diffuse through the membrane as different rate,and separated from each other.The different types of gas separation membrane,the basis of selecting membrane and the technological process of recovering H2 are also discussed.The problems that should be paid attention to are analyzed and the solutions are raised.