Separation of sugars by continuous annular chromatography

Technical Report · Sat Aug 01 04:00:00 EDT 1987

OSTI ID:6044199

Howard, A J; Carta, G; Byers, C H

Continuous chromatographic separations of aqueous fructose-glucose-sucrose solutions have been investigated in a laboratory-scale continuous annular chromatograph (CAC) using calcium-exchanged Dowex 50W-X8 resin. Comparative studies have also been conducted using a conventional fixed-bed column packed with the same resin. Complete resolution of fructose-glucose mixtures could be obtained both in a 60-cm-long CAC and in a conventional column of the same length with a sugar feed concentration of up to 200 g/L. Partial resolution of sucrose in three component mixtures was also obtained, and the three sugars were completely separated from added higher-molecular-weight saccharides. Results have been analyzed in terms of approximate linear chromatographic theories and orthogonal collocation of exact mass transfer model equations for fixed and rotating beds. A systematic, comparative evaluation of factors affecting process performance and design procedures is presented.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6044199
• Report Number(s): ORNL/TM-10318; ON: DE88001524
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ALDEHYDES
ANNULAR SPACE
AQUEOUS SOLUTIONS
CARBOHYDRATES
CHROMATOGRAPHY
COMPARATIVE EVALUATIONS
CONFIGURATION
DISACCHARIDES
DISPERSIONS
FRUCTOSE
GLUCOSE
HEXOSES
KETONES
MASS TRANSFER
MIXTURES
MONOSACCHARIDES
OLIGOSACCHARIDES
ORGANIC COMPOUNDS
SACCHARIDES
SACCHAROSE
SEPARATION PROCESSES
SOLUTIONS
SPACE