The Kinetics of Oxygen Delignification of Reed Kraft Pulp (I)-Kinetics of Delignification

Abstract:

The kinetics of reed kraft pulp oxygen delignification process is studied, suitable kinetics model determined is -dk/dt=Aexp(-E/RT) [OH^-]^b[P_O2]^c K^a, and the parameters in the model is calculated. The function for estimation of the kappa number at different reaction time is established for the reed kraft pulp oxygen delignification process. The reaction order fitted is 6.72 for delignification (a), 0.87 for alkali concentration (b), and 0.62 for oxygen pressure(c), respectively. The activation energy E is 80.96KJ/mol and frequency factor A 1.5×10⁴.

• Periodical: Advanced Materials Research (Volumes 236-238)
• Pages: 1420-1424
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.236-238.1420
• Online since: May 2011
• Authors: Xiao Feng Pan, Le Fan Ma, Qin Qin Qu, Jia Liang Lan, Li Hong Tan
• Keywords: Kappa Number, Kinetic, Oxygen Delignification, Reaction Order, Reed Kraft Pulp

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