Appearance of Enhancement Effect in Adsorption of Binary Gas Mixtures

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Tadaaki Sakano¹  Hajime Tamon²  Morio Okazaki² 

[1] Central Research Laboratories, Ajinomoto General Foods, Inc.;Department of Chemical Engineering, Kyoto University

关键词: Mixed-Gas Adsorption;    Adsorption Enhancement;    Micropore Filling;    Microporous Carbon;    Acidic Surface Oxide;   

DOI  :  10.1252/jcej.30.831

来源: Maruzen Company Ltd

【 摘 要 】

References(17)Cited-By(1)The properties of adsorbents and adsorbates contributing to the enhancement in adsorption of binary gas mixtures were experimentally investigated. It is found that adsorbent is required to maintain the phenolic hydroxyl group and the carbonyl group as acidic surface oxides on the carbon surface, and to have a microporous structure for the main adsorption sites. Each gas component is required to be chemisorbed on the phenolic hydroxyl group or the carbonyl group on the adsorbent, and that both components are adsorbed in the micropores together. From the characterization of absorbents after adsorption-desorption runs, it is demonstrated that the adsorbates in the micropores exist at a higher density than in the bulk state through the promotion of micropore filling when adsorption enhancement appears.

【 授权许可】

Unknown