Adsorption equilibrium of toluene from supercritical carbon dioxide on activated carbon

Journal Article · Sun Jul 01 04:00:00 EDT 1990 · Industrial and Engineering Chemistry Research; (USA)

DOI:https://doi.org/10.1021/ie00103a045· OSTI ID:5927637

Tan, C S; Liou, D C ^[1]

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1. Dept. of Chemical Engineering, National Tsing Hua Univ., Hsinchu (TW)

The equilibrium loadings of toluene from supercritical carbon dioxide on activated carbon are reported in this study. The experimental data were obtained by measuring the outlet concentration of toluene from a column packed with activated carbon until it reached the inlet concentration. When the densities were fixed at 0.32, 0.45, and 0.69 g/cm{sup 3}, the Langmuir isotherm expression was found to correlate the experimental data satisfactorily for the temperatures 308, 318, and 328 K. As the concentration of toluene in supercritical carbon dioxide was kept constant, the crossover of the equilibrium loadings at different temperatures was observed at relatively high pressures. The pressure at which the crossover occurred increased with increasing concentration.

• OSTI ID: 5927637
• Journal Information: Industrial and Engineering Chemistry Research; (USA), Journal Name: Industrial and Engineering Chemistry Research; (USA) Vol. 29:7; ISSN 0888-5885; ISSN IECRE
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
400201 -- Chemical & Physicochemical Properties
ACTIVATED CARBON
ADSORBENTS
ADSORPTION
ALKYLATED AROMATICS
AROMATICS
CARBON
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
DATA
ELEMENTS
EQUILIBRIUM
EXPERIMENTAL DATA
EXTRACTION
HYDROCARBONS
INFORMATION
KINETICS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PACKED BED
REACTION KINETICS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SORPTION
SUPERCRITICAL GAS EXTRACTION
TOLUENE