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  4. Experimental study of molecular and effective diffusion coefficients by means of gas-assisted pressing of edible oils
 
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Experimental study of molecular and effective diffusion coefficients by means of gas-assisted pressing of edible oils

Publikationstyp
Journal Article
Date Issued
2013-09-20
Sprache
English
Author(s)
Müller, Marcus  
Eggers, Rudolf  
Institut
Thermische Verfahrenstechnik V-8  
TORE-URI
http://hdl.handle.net/11420/6051
Journal
Chemie - Ingenieur - Technik  
Volume
85
Issue
12
Start Page
1896
End Page
1903
Citation
Chemie-Ingenieur-Technik 12 (85): 1896-1903 (2013)
Publisher DOI
10.1002/cite.201300052
Scopus ID
2-s2.0-84891788303
Publisher
Wiley-VCH Verlag
The solvent-free production of edible oils from oilseeds is steadily gathering more importance. Therefore, gas-assisted pressing is an innovative process. Knowlegde of the diffusion kinetics of the gas is essential in order to optimize the process. In this paper experimentally obtained molecular diffusion coefficients of CO2 in pure rapeseed oil as well as effective diffusion coefficients of CO2 within the oil of oil-bearing rapeseed presscake are presented. The acquired diffusion coefficients are compared to literature correlations and adjustments are presented. Comparison of molecular and effective diffusion coefficients resulted in an diffusion resistance factor of the surrounding solid of 2.1.
Subjects
Carbon dioxide
Diffusion coefficient
Diffusion resistance factor
Rapeseed oil
DDC Class
540: Chemie
600: Technik
620: Ingenieurwissenschaften
Funding(s)
Forschungsvorhaben AiF 16459 N Lösemittelfreie Gewinnung von Pflanzenöl mit CO2-unterstützten Pressverfahren  
More Funding Information
Forschungskreis der Ernährungsindustrie e.V. (FEI)
TUHH
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