Kamyr digester

Dayal, B. S., MacGregor, J. F., Taylor, P. A., Kildaw, R., and Marcikio, S., Application of Feedforward Neural Networks and Partial Least Squares Regression for Modelling Kappa Number in a Continuous Kamyr Digester, Pulp Paper Can., 95(1) 26 (1994)... 

Michelsen, F., 1995, A Dynamic Mechanistic Model and Model-Based Analysis of a Continuous Kamyr Digester . PhD Thesis, University of Trondheim, Trondheim. Wisnewski, P.A., Doyle, F.J. and Kayihan, F. 1997, Fundamental continuous-pulp-dlgester model for simulation and control . AIChE J., 43(12), 3175-3192. 

F. Kayihan, M. S. Gelormina, E. M. Hanczyc, F. J. Doyle, and Y. A. Arkun, A Kamyr continuous digester model for identification and controller design, Proc. IFAC World Congress, San Francisco, CA 1996, pp. 37-42. 

Yields of 50% and reduced energy consumption have been achieved by a history of innovation. Such innovation has included the Tomlinson black liquor recovery boiler, the Kamyr continuous digester and associated diffusion washer, multiple-effect evaporators, and low-odor concentrators. Economic advantages also have been gained by the development of systems for recovering extractives such as tall oil, fatty acids, and resin from the pulping liquor for sale as naval stores. Future innovations may focus on the lime kiln and other related systems. 

FIGURE 15.7 Schematic of the operating details of a Kamyr continuous digester. 

Figure 13.7. Schematic diagram of flows in a continuous digester (Kamyr of Karlstad, Sweden). The chip residence time within the digester is about 6 hr.

Smith, C.C., T. J. Williams (1974). Mathematical modeling, simulation and control of the operation of kamyr continuous digester for kraft process. Tech. Report 64, Purdue University, PLAIC. 

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