Adsorption equilibrium of benzaldehyde and benzyl alcohol onto polymeric resin from supercritical CO2

Xiaoning Yang, Carl T. Lira

Research output: Contribution to journalArticle

  • 2 Citations

Abstract

A frontal chromatographic technique was used to measure the adsorption isotherms of benzaldehyde and benzyl alcohol onto a polymeric resin in supercritical CO2 (scCO2). The effect of temperature and pressure (density) on adsorption behavior was investigated. It was observed that benzyl alcohol has stronger adsorption than benzaldehyde. The desorption of benzaldehyde using scCO2 from the polymeric resin adsorbent was studied under the same temperature and pressure ranges. The local equilibrium theory was found to reasonably predict the desorption profiles. A phenomenological statistical thermodynamic model combined with classic Peng–Robinson equations of state was used to correlate the adsorption equilibrium isotherms of the solutes from scCO2. This theoretical model with three parameters is able to describe the adsorption behavior over wide temperature and pressure ranges.

LanguageEnglish (US)
Pages63-71
Number of pages9
JournalAdsorption
Volume23
Issue number1
DOIs
StatePublished - Jan 1 2017

Profile

Benzyl Alcohol
Carbon Monoxide
resins
alcohols
Alcohols
Resins
Adsorption
adsorption
Desorption
isotherms
desorption
Statistical mechanics
Adsorption isotherms
Equations of state
Temperature
Adsorbents
Isotherms
adsorbents
temperature
solutes

Keywords

  • Adsorption isotherms
  • Benzaldehyde
  • Benzyl alcohol
  • Equation of state
  • Supercritical carbon dioxide

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Surfaces and Interfaces

Cite this

Adsorption equilibrium of benzaldehyde and benzyl alcohol onto polymeric resin from supercritical CO2 . / Yang, Xiaoning; Lira, Carl T.

In: Adsorption, Vol. 23, No. 1, 01.01.2017, p. 63-71.

Research output: Contribution to journalArticle

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