High pressure adsorption of aqueous fructose/glucose mixtures on an activated carbon and their supercritical desorption
Institution of Chemical Engineers Symposium Series, sa.118, ss.187-201, 1990 (Scopus)
- Yayın Türü: Makale / Tam Makale
- Basım Tarihi: 1990
- Dergi Adı: Institution of Chemical Engineers Symposium Series
- Derginin Tarandığı İndeksler: Scopus
- Sayfa Sayıları: ss.187-201
- Boğaziçi Üniversitesi Adresli: Evet
Özet
An adsorption system with the capability of processing a liquid, gas or supercritical fluid stream was constructed and used to investigate the phase equilibrium and mass transfer behavior of the monosaccharides, fructose and glucose. The compounds were first adsorbed onto activated carbon from an aqueous solution and then desorbed into a stream of supercritical carbon dioxide containing a small amount of ethanol to enhance solubility. Experiments were conducted at pressures 1200 and 2200 psi and temperatures 35, 50, and 65 degrees C. The relative selectivity of fructose over glucose ranges from 0.32 to 4.94 when adsorbing from aqueous solution, and from 1.07 to 1.34 when desorbing into supercritical carbon dioxide.