Kinetic studies and optimization of abies wood fractionation by hydrogen peroxide under mild conditions with TiOb class="a-plus-plus">2b> catalyst

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• 作者：B. N. Kuznetsov ; I. G. Sudakova…
• 关键词：Abies wood ; Oxidative fractionation ; Hydrogen peroxide ; TiO2 catalyst ; Kinetics ; Optimization
• 刊名：Reaction Kinetics, Mechanisms and Catalysis
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：120
• 期：1
• 页码：81-94
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Catalysis; Physical Chemistry; Industrial Chemistry/Chemical Engineering;
• 出版者：Springer Netherlands
• ISSN：1878-5204
• 卷排序：120

文摘

The kinetic study of abies wood delignification by Hb>2b>Ob>2b> in the medium acetic acid–water was first carried out in the presence of TiOb>2b> catalyst under mild conditions: temperatures 70–100 °C, atmospheric pressure. The oxidative delignification process is described satisfactory by the first order equation in all temperature range. The rate constants varied between 0.80 and 12.3 × 10−3 min−1 and the activation energy was near 81 ± 0.21 kJ mol−1. The optimal parameters of the delignification process, providing the effective fractionation of abies wood on microcrystalline cellulose and soluble lignin, were established by experimental and numerical methods.