Measurement and correlation of supercritical carbon dioxide adsorption on activated carbon

Katusyoshi Tanida, Yoshiyuki Sato, Hirokatsu Masuoka

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The adsorption equilibrium loadings of supercritical carbon dioxide on BPL activated carbon were measured by an apparatus based on an isochoric method at temperatures of 313.2, 333.2 and 353.2 K and pressures up to 13 MPa. The pressure dependence of the amount of apparent adsorbed carbon dioxide showed maximum values and the maximum decreased with increasing temperature. The pressures at which the adsorbed amount showed the maximum increased with increasing temperature. The amount of true adsorption evaluated using adsorbed phase density, which was estimated by using the Dubinin-Nikolaev equation, exhibited a general trend whereby the loadings increased with increasing pressure and decreased with increasing temperature. Correlated values of both apparent and true loadings by the Dubinin-Astakhov equation were in good agreement with the exprerimental data.

Original languageEnglish
Pages (from-to)390-391
Number of pages2
Journalkagaku kogaku ronbunshu
Volume22
Issue number2
DOIs
Publication statusPublished - 1996

Keywords

  • Activated Carbon
  • Adsorption
  • Dubinin-Astakhov Equation
  • High Pressure
  • Supercritical Carbon Dioxide

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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