EVALUATION OF PACKED COLUMNS IN SUPERCRITICAL EXTRACTION PROCESSES
- 1 July 1987
- journal article
- research article
- Published by Taylor & Francis in Solvent Extraction and Ion Exchange
- Vol. 5 (3) , 367-391
- https://doi.org/10.1080/07366298708918573
Abstract
The purpose of the present work is to add to the base of knowledge in the use of packed columns when used in supercritical extraction service. Experimental studies were performed on a 2·54 cm diameter supercritical fluid extraction column operated in both spray and packed column arrangements. The packing used was 6· mm Raschig rings with a surface area of 722 m2/m3. The supercritical systems studied were carbon dioxide/ethanol/water and carbon dioxide/isopropanol/water at 102 atmospheres and 35°C and 102 atmospheres and 40°C, respectively. In order to compare supercritical with conventional extraction, similar data were obtained in the same column with the toluene/acetone/water system at one atmosphere and 24°C.Keywords
This publication has 2 references indexed in Scilit:
- Separation with Supercritical Gases: Practical ApplicationsAngewandte Chemie International Edition in English, 1978
- The Separation of Nonvolatile Substances by Means of Compressed Gases in Countercurrent ProcessesAngewandte Chemie International Edition in English, 1978