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The DOI matches its Crossref record; 63 of the 63 references it cites were found in a registry or an index.

Comparative Molecular Simulation Study of CO2/N2 and CH4/N2 Separation in Zeolites and Metal−Organic Frameworks

Open access
Liu, Bei, Smit, Berend·2009·Langmuir

Abstract

In this work, a systematic molecular simulation study was performed to compare the separation of CO2/N2 and CH4/N2 mixtures in two different classes of nanoporous materials, zeolites, and metal-organic frameworks (MOFs). For this purpose, three zeolites (MFI, LTA, and DDR) and seven MOFs (Cu-BTC, MIL-47 (V), IRMOF-1, IRMOF-12, IRMOF-14, IRMOF-11, and IRMOF-13) were chosen as the representatives to compare. On the basis of the validated force fields, both adsorption selectivity and pure CO2 and CH4 adsorption isotherms were simulated. The results show that although MOFs perform much better for gas storage, their separation performance is comparable to zeolites; for the systems with the preferable component having a larger quadrupolar moment, both zeolites and MOFs can enhance the separation selectivity, and in contrast they both reduce the selectivity. In addition, we show that ideal adsorbed solution theory (IAST) gives a very reasonable prediction of the mixture adsorption isotherms both in zeolites and in MOFs if the pure component isotherms are known. We demonstrate that the difference in quadrupolar moment of the components is an important property that has to be considered in the selection of a membrane material.

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Metadata

Authors
Liu, B., & Smit, B.
Venue
Langmuir
Published
2009-04-21
Volume
25
Issue
10
Pages
5918-5926
ISSN
  • 0743-7463 (ISSN-L)
  • 1520-5827
OpenAlex
W2005044960
Cited by
302
References
63
FWCI
13.98
Type
journal article
Language
en
Open access
green

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