Regeneration Methods for Caffeine-Loaded CO₂

Publikationstyp
Journal Article
Date Issued
1995-10-01
Sprache
English
Author(s)
Birtigh, Andreas  
Liu, Kaiyue  
Johannsen, Monika  orcid-logo
Brunner, Gerd  
Institut
Thermische Verfahrenstechnik V-8  
TORE-URI
http://hdl.handle.net/11420/4727
Journal
Separation science and technology  
Start Page
3265
End Page
3286
Citation
Separation Science and Technology 17 (30): 3265-3286 (1995)
Publisher DOI
10.1080/01496399508013144
Supercritical gas extraction for the decaffeination of green coffee beans has become an established method in the last decade. However, because of the commercial aspects in this field, few research results on applications have been published. In this publication, three different methods for the regeneration of caffeine-loaded CO2 are presented: depressurization, adsorption with activated carbon, and absorption with water. For all these methods, phase equilibrium experiments with pure caffeine were done. Furthermore, pilot-plant experiments were performed to decaffeinate green coffee beans.
DDC Class
620: Ingenieurwissenschaften