1. Hydrolysis Kinetics of Straw Biomass Catalyzed by Diluted Sulphuric Acid in the Present of Fe2+
- Author
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Can Chen Bai, Chong Wen Jiang, and Hao Xiao
- Subjects
Hydrolysis constant ,Hydrolysis ,chemistry.chemical_compound ,Reaction rate constant ,chemistry ,Yield (chemistry) ,Inorganic chemistry ,General Engineering ,Organic chemistry ,Sulfuric acid ,Straw ,Sugar ,Catalysis - 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.
- Published
- 2012