Hydrolysis Kinetics of Straw Biomass Catalyzed by Diluted Sulphuric Acid in the Present of Fe2+

Chong Wen Jiang; Can Chen Bai; Hao Xiao

doi:10.4028/www.scientific.net/AMR.550-553.484

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 550-553Hydrolysis Kinetics of Straw Biomass Catalyzed by...

Hydrolysis Kinetics of Straw Biomass Catalyzed by Diluted Sulphuric Acid in the Present of Fe²⁺

Abstract:

This study focuses on kinetics of straw hydrolysis using sulfuric acid catalyst to produce fermentable sugars. The result shows the degradation of sugars is encountered during the hydrolysis of straw biomass. A consecutive first-order reactions kinetic model is proposed and the kinetic model well agrees with the experimental data. It turns out that rate of sugar formation and degradation is small at lower experimental temperature. The reactions rates constant k1 including the formation of sugar begins to increase rapidly when the Fe²⁺ concentration increases from 0.125 to 0.500molL-1. However, the rate constant k2 relevant with the degradation of sugar varies unsensibly below 0.375molL-1 Fe²⁺ and it is accelerated as the Fe²⁺ concentration increases to 0.500molL-1. Thus the optimum yield is obtained at 0.375molL-1 Fe²⁺ concentration.

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Periodical:

Advanced Materials Research (Volumes 550-553)

Pages:

484-487

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.550-553.484

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Online since:

July 2012

Authors:

Chong Wen Jiang, Can Chen Bai, Hao Xiao

Keywords:

Hydrolysis, Kinetic, Straw Biomass, Sugar

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