The use of a gas chromatograph to obtain drying rates data through simple laboratory experiments

A method making use of a gas chromatograph was investigated to acquire bound solvent drying rates. The solid to be dried was used as stationary phase in a chromatographic column, and the TCD detector was used to follow the decrease of solvent content of the effluent as inert gas was flown through th...

Full description

Saved in:
Bibliographic Details
Published inDrying technology Vol. 15; no. 9; pp. 2325 - 2341
Main Authors Floquet-Muhr, L. (LSGC-CNRS-ENSIC, Nancy, France.), Durand-Bourlier, L, Tondeur, D, Chanel, S
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 01.01.1997
Subjects
bound solvent
CHROMATOGRAPHIE EN PHASE GAZEUSE
CROMATOGRAFIA DE GASES
DRYING
drying kinetics
FOOD TECHNOLOGY
GAS CHROMATOGRAPHY
internal mass-transfer
KINETICS
SECADO
SECHAGE
TECHNOLOGIE ALIMENTAIRE
TECNOLOGIA DE LOS ALIMENTOS
Online AccessGet full text

Cover

More Information
Summary:A method making use of a gas chromatograph was investigated to acquire bound solvent drying rates. The solid to be dried was used as stationary phase in a chromatographic column, and the TCD detector was used to follow the decrease of solvent content of the effluent as inert gas was flown through the column. The measurement of the break-through curve allows the evolution of drying rate with time or solvent content to be obtained. The comparison of the experimental results with numerical simulation leads to the determination, through parametric adjustment, of the internal mass-transfer coefficient as a function of the solvent content during the second stage of bound solvent drying period. This parameter can lead to the value of the diffusivity as a function of solvent content.
Bibliography:Q02
1997052144
ISSN:0737-3937
1532-2300
DOI:10.1080/07373939708917364