Adsorption isotherms and isosteric enthalpy of adsorption for assorted refrigerants on activated carbons

Wai Soong Loh, Azhar Bin Ismail, Baojuan Xi, Kim Choon NG*, Won Gee Chun

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

This paper features the adsorption equilibria of refrigerants R134a, R290, R410a, and R507a on microporous activated carbon samples at temperatures between 278 K and 338 K with pressures up to 1.4 MPa. The adsorption isotherm data are obtained by utilizing the constant-volume-variable-pressure (CVVP) approach and analyzed using the Dubinin-Ashtakov (DA) model. The regressed adsorption parameters acquired by using this model produces isotherm curves that agree within 5 % of the experimental results. The concentration- and temperature-dependent enthalpies of adsorption of these pairs are evaluated and presented.

Original languageEnglish (US)
Pages (from-to)2766-2773
Number of pages8
JournalJournal of Chemical and Engineering Data
Volume57
Issue number10
DOIs
StatePublished - Oct 11 2012

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Fingerprint

Dive into the research topics of 'Adsorption isotherms and isosteric enthalpy of adsorption for assorted refrigerants on activated carbons'. Together they form a unique fingerprint.

Cite this