Kinetics of extraction of coal-tar pitch components with supercritical carbon dioxide

Marković, S., Marković, Z., McCrindle, R. I. and Simonović, B. R. Kinetics of extraction of coal-tar pitch components with supercritical carbon dioxide Chemical Papers, Vol.61, No. 1, 2007, 46-50

Document type: Článok z časopisu / Journal Article
Collection: Chemical papers  

Author(s) Marković, S.
Marković, Z.
McCrindle, R. I.
Simonović, B. R.
Title Kinetics of extraction of coal-tar pitch components with supercritical carbon dioxide
Journal name Chemical Papers
Publication date 2007
Year available 2007
Volume number 61
Issue number 1
ISSN 0366-6352
Start page 46
End page 50
Place of publication Poland
Publisher Versita
Collection year 2007
Language english
Subject 290000 Engineering and Technology
290600 Chemical Engineering
Abstract/Summary The extraction of a coal-tar pitch with supercritical carbon dioxide was performed under optimal pressure, flow rate, and three different constant temperatures. The extraction kinetics was examined for each temperature and it was surprisingly found that the extraction rate of most components was governed by the first-order kinetics. It was assumed that this deviation from typical models of supercritical fluid extraction kinetics was caused by high pitch concentrations and low solubilities of the components.
 
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