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Alteration of Adsorption Selectivity of LSX Zeolite in Li+ and H+ Forms towards CO2 and N2O Full article

Journal Catalysis for Sustainable Energy
ISSN: 2084-6819
Output data Year: 2017, Volume: 4, Number: 1, Pages: 31-35 Pages count : 5 DOI: 10.1515/cse-2017-0006
Tags LSX zeolite; ion-exchange; Li-LSX; H-LSX; separation CO2; N2O; adsorption; selectivity
Authors Leonova A.A. 1 , Mel’gunov M.S. 1,2
Affiliations
1 Boreskov Institute of Catalysis, Novosibirsk, 630090, Akad. Lavrentieva 5, Russia
2 Novosibirsk State University, Novosibirsk, 630090, Pirogova 2, Russia

Funding (1)

1 Federal Agency for Scientific Organizations 0303-2016-0002

Abstract: The adsorption and textural properties of LSX zeolite after cation exchange both in LiCl and NH4Cl aqueous solutions have been evaluated from elemental analysis, XRD, N2 adsorption at 77K, and CO2 and N2O adsorption at 273K. Incorporation of Li+ and H+ results in a significant decrease of adsorption selectivity towards CO2 in a pressure range 0.01 – 1 Torr compared to the initial LSX in the K-Na form. This feature allows simultaneous quantitative sequestration of CO2 and N2O traces from contaminated gas flows, or can be useful for pre-concentration of these gases prior to catalytic utilization. Above 1 Torr adsorption selectivity rises to 1.0 for the unmodified LSX, but incorporation of Li+ and H+ increases it in the range 5 – 50 Torr, allowing adsorption purification of N2O from CO2 diluted an in inert gas flow under the applied conditions.
Cite: Leonova A.A. , Mel’gunov M.S.
Alteration of Adsorption Selectivity of LSX Zeolite in Li+ and H+ Forms towards CO2 and N2O
Catalysis for Sustainable Energy. 2017. V.4. N1. P.31-35. DOI: 10.1515/cse-2017-0006 РИНЦ AN OpenAlex
Files: Full text from publisher
Dates:
Submitted: Jul 3, 2017
Accepted: Oct 13, 2017
Published print: Nov 27, 2017
Published online: Nov 24, 2018
Identifiers:
Elibrary: 32280912
Chemical Abstracts: 2019:623706
OpenAlex: W2774361068
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Elibrary 5
OpenAlex 3
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