Research on CO2 Adsorption Characteristics of Hydrophobic ZSM-5 Adsorbent

doi:10.3780/j.issn.1000-758X.2012.02.003

Abstract

Abstract: ThetraditionalCO₂removalmethodwith 5A zeolite molecular sieve will lose efficacy because of the strong affinity with the water vapor.Ahydrophobic ZSM-5 adsorbent was preparedbyamixtureofZSM5,silicasol,waterandadditives,followedbyprocessesofextrusion,dryingandthenhydrophobicmodification.Thestructuresandpropertiesoftheadsorbentwere analyzed by N₂, H₂O/CO₂adsorptionisothermsandXRDanalysismethods.Thepreparedadsorbenthasmultilevelpore structure,highBETspecificsurfacearea(296m²/g) andbetterCO₂adsorptionperformance,aswell asexcellenthydrophobicity, and the H₂O equilibriumadsorptioncapacityisabout1% of weightevenundertheconditionof90%relativehumidity.

Key words: Zeolite, Molecular sieve, Adsorbent, Hydrophobic modification, Manned spacecraft

WANG Xi-Qin, LI Kai, LUAN Zhi-Qiang, YE Ping-Wei. Research on CO₂ Adsorption Characteristics of Hydrophobic ZSM-5 Adsorbent[J]. Chinese Space Science and Technology, 2012, 32(2): 17-21.

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URL: https://journal26.magtechjournal.com/kjkxjs/EN/10.3780/j.issn.1000-758X.2012.02.003

https://journal26.magtechjournal.com/kjkxjs/EN/Y2012/V32/I2/17

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Research on CO₂ Adsorption Characteristics of Hydrophobic ZSM-5 Adsorbent

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