Integrated Dynamic Pulping Process Model, 2004 Engineering, Pulping, and PCE&I Conference
This paper presents further development of the extended Purdue continuous digester model and its integration into
dynamic process simulation software. The objective of the work was to implement the model in such a way to the
process simulation platform that would make it an easy-to-use part of a larger process model. In the work the Purdue
model was extended with chip compaction and liquid and chip level calculations as well as with an alternative
pulping reaction kinetics model, the so called Gustafson kinetics. The model was validated by comparing its outputs
to the results presented by Wisnewski et al. in 1997. Application of the simulation model to an actual pulping
process ranging from the chip silo to the blow line is presented.