The Kinetics of Oxygen Delignification of Reed Kraft Pulp (I)-Kinetics of Delignification
The kinetics of reed kraft pulp oxygen delignification process is studied, suitable kinetics model determined is -dk/dt=Aexp(-E/RT) [OH-]b[PO2]c Ka, 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.
Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao
X. F. Pan et al., "The Kinetics of Oxygen Delignification of Reed Kraft Pulp (I)-Kinetics of Delignification", Advanced Materials Research, Vols. 236-238, pp. 1420-1424, 2011