Kinetics of Delignification from Mechanistic and Process Control Point of View in Solvent Pulping Processes, 1993 Pulping Conference Proceedings
With the advent of organosolv pulping from laboratory to demonstration scale and actual mill implementation, increased attention is being paid to these technologies as either an "add on" to kraft mills or replacement of sulfite mills (particularly in Germany). Although there has been a significant amount of research done on understanding the fundamentals of solvent chemistry, the information in the literature is rather sketchy as to which mechanism is responsible for the breakup of lignin. The purpose of this review is to explain the chemistry of delignification based on the activation energies reported in the literature and, secondly, to propose a relative rate constant table similar to that used in kraft pulping. We have tried to answer the question "What is the most likely delignification mechanism of hardwoods in organosolv delignification, i.e., a-aryl or B-aryl ether cleavage?"
Kinetics of Delignification from Mechanistic and Process Control Point of View in Solvent Pulping Pr
