Journal of the Japan Institute of Energy
Online ISSN : 1882-6121
Print ISSN : 0916-8753
ISSN-L : 0916-8753
Hydrothermal Pulping of Wet Biomass as Pretreatment for Supercritical Water Gasification Studied Using Cabbage as a Model Compound
Akitomo KATOYukihiko MATSUMURA
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2003 Volume 82 Issue 2 Pages 97-102

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Abstract

Liquidization of wet biomass (cabbage) was conducted at 423-473 K and 1.2-1.3MPa. From observation with electron microscope and analysis of components, it was found that liquidization was caused by the breakdown of cell structure, mainly decomposition of hemicellulose. Liquidized product was slurry liquid, which could be described as a Newtonian fluid. The higher the temperature for liquidization treatment was, the lower the apparent viscosity of liquidized product was. It was also confirmed that gasification in supercritical water (673K, 25MPa) was promoted by liquidization treatment at 423 K.

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