Atmospheric pyrolysis of carbohydrates with thermogravimetric and mass spectrometric analyses

The pyrolysis of glucose, maltose, cellobiose, amylose and cellulose was studied by thermogravimetry between 250–400°C at atmospheric pressure in helium. The thermogravimetric analyzer was coupled with a mass spectrometer and the evolving gases were continuously monitored. Between 2.6 and 2.8 moles...

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Bibliographic Details
Published in:Journal of analytical and applied pyrolysis 1985-01, Vol.8, p.41-48
Main Authors: Pavlath, Attila E., Gregorski, Kay S.
Format: Article
Language:English
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Summary:The pyrolysis of glucose, maltose, cellobiose, amylose and cellulose was studied by thermogravimetry between 250–400°C at atmospheric pressure in helium. The thermogravimetric analyzer was coupled with a mass spectrometer and the evolving gases were continuously monitored. Between 2.6 and 2.8 moles of water were obtained for every hexose unit. For amylose and cellulose the water formation was in one step; for the other carbohydrates, varying amounts of water formed in two different steps. The scans were evaluated by computer and the concentrations of the possible components were plotted versus temperature. The correlation of these curves with the weight loss curve throws new light on carbohydrate pyrolysis reactions.
ISSN:0165-2370
1873-250X
DOI:10.1016/0165-2370(85)80013-9