USE OF ZEOLITES AND ALUMINA IN ADSORPTION PROCESSES

摘要

A process for the adsorption of at least carbon dioxide, water and oxides of nitrogen and preferably acetylene from a feed gas, comprises contacting the feed gas with an adsorbent mixture of a zeolite and an alumina. The process may be operat ed as a swing adsorption process comprising contacting said gas with said adsorbent at a first temperature and pressure to adsorb at least carbon dioxide, water and oxides of nitrogen therefrom and periodically regenerating said adsorbent by reducing the pressure and or increasing the temperature to which the adsorbent is exposed.