Adsorption of equal mass fraction near an azeotropic mixture of pentafluoroethane and 1,1,1-trifluoroethane on activated carbon

Bidyut B. Saha, Ibrahim I. El-Sharkawy, Khairul Habib, Shigeru Koyama, Kandadai Srinivasan

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25 Citations (Scopus)

Abstract

This paper presents adsorption isotherms for R-507A, which is a near azeotropic mixture of R-125 (pentafluoroethane) and R-143a ( 1,1,1-trifluoroethane) in equal mass fractions, on a Maxsorb in specimen of activated carbon in the temperature range of about (5 to 70) °C and pressure up to 15 bar. The data were obtained using the desorption method to an estimated precision of 5 % and fitted to three isotherm equations, namely, Dubinin-Astakhov, Langmuir, and Tóth. The adsorption parameters were determined. Some peculiarities in isosteric heating behavior were observed.

Original languageEnglish
Pages (from-to)1872-1876
Number of pages5
JournalJournal of Chemical and Engineering Data
Volume53
Issue number8
DOIs
Publication statusPublished - Aug 2008

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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