DEVELOPMENT OF MESOPOROUS MEMBRANE MATERIALS FOR CO2 SEPARATION

Shih, Wei-Heng ; Patil, Tejas

National Energy Technology Laboratory (U.S.)

关键词: Membranes;    Carbon Dioxide;    36 Materials Science;    Porous Materials;    Adsorption;   

DOI  :  10.2172/804177
RP-ID  :  FG26-00NT40823--03
RP-ID  :  FG26-00NT40823
RP-ID  :  804177

美国|英语

来源: UNT Digital Library

【 摘 要 】

The authors propose to use microporous aluminosilicate as a suitable candidate for CO{sub 2}/N{sub 2} separation because the pore size is less than 10 {angstrom}. If a CO{sub 2} adsorbent is added to the microporous silica, the adsorption of CO{sub 2} can block the passage of N{sub 2} and an effective CO{sub 2}/N{sub 2} separator will be found. It was first demonstrated that microporous silica could be synthesized. The microporous silica was then impregnated with Ba(OH){sub 2}. No adsorption of CO{sub 2} was observed. Alumina must be added to facilitate CO{sub 2} adsorption. However, no microporous aluminosilicates have been shown before. In this six-month study, they developed a process that partially coat alumina on microporous silica. Microporous aluminosilicates were synthesized by the coating process.