核桃壳苯酚离解活化动力学研究

›› 2009, Vol. 43 ›› Issue (3): 1-4.

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The Kinetic Study of Dissociation and Activation of Walnut Shell with Phenol

LIU Chun-hui, LING Min, ZHANG Hong-jian, WANG Rong

Faculty of Wood Science and Decoration Engineering, Southwest Forestry College, Kunming 650224, China

Received:2008-12-03 Revised:1900-01-01 Online:2009-05-30 Published:2009-05-30

Abstract

Abstract: The reaction mechanism of dissociation and activation of walnut shell in liquefaction with phenol by acid catalyst was studied by determination of the free phenol content and residue content in the conditions of different reaction time and temperature by application of Arrhenius equation, transition theory and kinetic analysis. The results showed that the free phenol content and residue content in dissociated product decreased with the extending of reaction time. The dissociation and activation of walnut shell with phenol by acid catalyst accorded with a bimolecular second-order endothermic reaction. The activation energy, pre-exponential factor, activation enthalpy and activation entropy were 65.24 kJ/mol,2.39×10⁶ min^-1, 65.24 kJ/mol, and -122.09 J/mol, respectively.

Key words: kinetics, walnut shell, dissociation

CLC Number:

TQ433.439

LIU Chun-hui;LING Min;ZHANG Hong-jian;WANG Rong. The Kinetic Study of Dissociation and Activation of Walnut Shell with Phenol[J]. , 2009, 43(3): 1-4.

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The Kinetic Study of Dissociation and Activation of Walnut Shell with Phenol

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