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Titolo:
IMPULSE-RESPONSE ANALYSIS FOR ADSORPTION OF ETHYL-ACETATE ON ACTIVATED CARBON IN SUPERCRITICAL CARBON-DIOXIDE
Autore:
GOTO M; SATO M; KAWAJIRI S; HIROSE T;
Indirizzi:
KUMAMOTO UNIV,DEPT APPL CHEM KUMAMOTO 860 JAPAN
Titolo Testata:
Separation science and technology
fascicolo: 12, volume: 31, anno: 1996,
pagine: 1649 - 1661
SICI:
0149-6395(1996)31:12<1649:IAFAOE>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
FLUID REGENERATION; DESORPTION; CHROMATOGRAPHY; EXTRACTION;
Keywords:
ADSORPTION; SUPERCRITICAL FLUID; ETHYL ACETATE; CARBON DIOXIDE; EQUILIBRIA; MASS TRANSFER;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
M. Goto et al., "IMPULSE-RESPONSE ANALYSIS FOR ADSORPTION OF ETHYL-ACETATE ON ACTIVATED CARBON IN SUPERCRITICAL CARBON-DIOXIDE", Separation science and technology, 31(12), 1996, pp. 1649-1661

Abstract

Adsorption equilibria and mass transport properties for ethyl acetateon activated carbon have been evaluated in the presence of supercritical carbon dioxide by means of the impulse response technique. A two-column system, one for dissolving solute and one for adsorption, was used to evaluate the phenomena purely in the adsorption column, The adsorption equilibrium constant was larger for higher temperature and lower pressure. The apparent heat of adsorption calculated from the temperature dependence of the adsorption equilibrium constant was 30-40 kJ/mol. The intraparticle effective diffusivity was larger for higher temperature and lower pressure. The Peclet number that relates to the axial dispersion coefficient was 0.08-0.39. These estimated parameters arein good agreement with those obtained from desorption measurements reported in the literature.

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Documento generato il 01/04/20 alle ore 02:09:18