Pyrolysis kinetics of acid-leached rice husk

NCUIR > Engineering College > National Central University Department of Chemical & Materials Engineering > journal & Dissertation > Item 987654321/26572

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/26572

Title:	Pyrolysis kinetics of acid-leached rice husk
Authors:	Liou,TH;Chang,FW;Lo,JJ
Contributors:	化學工程與材料工程學系
Keywords:	SILICON-NITRIDE;HULLS;CELLULOSE;CARBIDE;CARBON
Date:	1997
Issue Date:	2010-06-29 17:31:23 (UTC+8)
Publisher:	中央大學
Abstract:	A highly pure mixture of carbon and silica was obtained on pyrolysis rice husk leached with acid at high temperature in a nonoxidizing atmosphere. The product was suitable for use as a starting material in the the manufacture of silicon nitride powder. The effect of treatment including the kind and concentration of acid and the pyrolysis temperature on the constituents of the specimen was presented. Kinetic tests on pyrolysis of rice husk in a nitrogen atmosphere were carried out with a thermal gravimetric analysis (TGA) technique at heating rates 2, 3, and 5 k/min. The results indicated that thermal degradation of rice husk consisted of two distinct pyrolysis stages. The corresponding kinetic parameters including the activation energy were determined. A reasonable pyrolysis mechanism was proposed, which agreed satisfactorily with the experimental results.
Relation:	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Appears in Collections:	[National Central University Department of Chemical & Materials Engineering] journal & Dissertation

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