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- Title
Alkaline Hydrolysis Kinetics Modeling of Bagasse Pentosan Dissolution.
- Authors
Yuxin Liu; Yanxue Liu; Zhongliang Wang; Jinhui Peng
- Abstract
The main pentosan components of sugarcane bagasse, which can be subjected to alkaline hydrolysis, are xylose, arabinose, glucose, and galactose. The pentosan reaction mechanism was considered for alkalitreated bagasse with variation of temperature and time. The kinetics of pentosan degradation were studied concurrently at temperatures of 50 oC, 70 °C, and 90 °C, with a solid-liquid mass ratio of 1:15, a stirring speed of 500 revolutions/min, and different holding times for bagasse alkali pre-extraction. With respect to residual pentosan content and the losses of raw material, the hydrolysis rates of alkali pre-extraction and pentosan degradation reactions of bagasse all followed pseudo-firstorder kinetic models. Finally, the main degradation activation energy was determined to be 20.86 KJ/mol, and the residual degradation activation energy was 28.75 KJ/mol according to the Arrhenius equation.
- Subjects
BAGASSE; HYDROLYSIS; PENTOSANS; DISSOLUTION (Chemistry); BIODEGRADATION; ACTIVATION energy
- Publication
BioResources, 2014, Vol 9, Issue 1, p445
- ISSN
1930-2126
- Publication type
Article