Process and apparatus for gas purification

专利名称：Process and apparatus for gas purification发明人：Divyanshu R. Acharya,Ravi Jain,James K.

Tseng

申请号：US08/722687申请日：19960930公开号：US05728198A公开日：19980317

摘要：An air prepurification system which includes vertically oriented adsorptionvessels containing, from top to bottom, a layer of moisture- selective adsorbent, a firstlayer of carbon dioxide-selective adsorbent and a second layer of carbon dioxide-selective adsorbent wherein the particle size of carbon dioxide-selective adsorbent in thesecond layer of carbon dioxide-selective adsorbent is smaller than the particle size ofboth the moisture-selective adsorbent and the carbon dioxide-selective adsorbent in thefirst layer of carbon dioxide- selective adsorbent. The air purification system is designedfor use in a temperature swing adsorption process in which air is passed downwardlythrough the adsorption vessels during the adsorption step and upwardly through thevessels during the adsorbent regeneration step.

申请人：THE BOC GROUP. INC.

代理人：Coleman R. Reap,Salvatore P. Pace

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