Kinetics of Electrochemical Delignification Mediated with Violuric Acid

Ya Jie Zhong; Fan Gong Kong; Shou Juan Wang; Hong Lei Chen

doi:10.4028/www.scientific.net/AMM.496-500.179

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 496-500Kinetics of Electrochemical Delignification...

Kinetics of Electrochemical Delignification Mediated with Violuric Acid

Abstract:

The violuric acid mediated chemical delignification system has a high delignification efficiency for pulp fibers and high delignification selectivity. The process conditions and effectiveness were carried out.The kinetics of electrochemical delignification has been investigated using the violuric acid (VIO) as the mediator. The reaction orders with respect to delignification, concentration of VIO and voltage of electrolytic cell were determined experimentally, which were dependent on the reaction conditions. The kinetic equation of electrochemical delignification and estimation function of kappa number were obtained respectively as follows: - dK/dt = A e-[VI^1.031[^2.197K^6.25 , E=16.2KJ/mol, K(t)={2.89×10^-7+5.25k [VI^1.031[^2.197t}^-0.19.

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Periodical:

Applied Mechanics and Materials (Volumes 496-500)

Pages:

179-182

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.496-500.179

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Online since:

January 2014

Authors:

Ya Jie Zhong, Fan Gong Kong*, Shou Juan Wang, Hong Lei Chen

Keywords:

Electrochemical Delignification, Kinetic, Model, Violuric Acid

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References

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DOI: 10.4028/www.scientific.net/amr.201-203.2854

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