With the development of adsorption
separation technology and the discovery of new novel adsorbents,
PSA technology seems more important and is concerned
by more and more scientists than other technologies
[4,5]. Activated carbons, activated aluminum oxides, molecular
sieves and so on have been applied as adsorbents in the process
of separation/concentration of the greenhouse gases on
PSA. The key technologies of PSA are to find appropriate adsorbents
and design convenient adsorptive processes [6]