Degradation Kinetics of Xylose and Arabinose in Subcritical Water in Unitary and Binary System

Xiu Ju Chen; Xiao Qin Liu; Fang Lian Xu; Xin Peng Bai

doi:10.4028/www.scientific.net/AMR.450-451.710

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 450-451Degradation Kinetics of Xylose and Arabinose in...

Degradation Kinetics of Xylose and Arabinose in Subcritical Water in Unitary and Binary System

Abstract:

The degradation process of xylose and arabinose in a binary compositions system at temperatures from 210 to 250°C was studied to clarify the reaction mechanism and to examine the effect of the degradation products of a substrate on the disappearance of another substrate. The activation energy and frequency factor for the degradation of each substrate were estimated from the temperature dependence of the rate constant. The molar yield of a pentose to furfural was ca. 0.3 at any temperature, Acidic compounds were also formed from the pentoses in proportion to the amount of consumed substrates. The formation of acidic compounds resulted in a rapid decrease in pH

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Periodical:

Advanced Materials Research (Volumes 450-451)

Pages:

710-714

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.450-451.710

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Online since:

January 2012

Authors:

Xiu Ju Chen, Xiao Qin Liu, Fang Lian Xu, Xin Peng Bai

Keywords:

Arabinose, Degradation, Kinetic, Subcritical Water, Xylose

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