Modified continuous cooking Until the early 1980s, most pulping processes used a “conventional cooking mode”. Conventional cooking is the practice of adding all the required cooking chemicals (i.e., white liquor) in the beginning of the process. For continuous digesters, this means the addition of all white liquor within the chip feeding system. As a result,
Authors & references
Raimo Alén, University of Jyväskylä and Victoria Lindqvist, Forest Products Engineers have condensed and modified the text mainly from the references “Gustafsson, J., Alén, R., Engström, J., Korpinen, R., Kuusisto, P., Leavitt, A, Olsson, K., Piira, J., Samuelsson, A. and Sundquist, J. 2011. Pulping. In: Fardim, P. (Ed.). Chemical Pulping Part 1, Fibre Chemistry and Technology. 2nd edition. Paper Engineers’ Association, Helsinki, Finland. Pp. 187−381” and “Maroccia, B., Prough, J. R., Engström, J. and Gullichsen, J. 1999. In: Gullichsen, J. and Fogelholm, C.-J. (Eds.). Chemical Pulping, Book 6A. Fapet Oy, Helsinki, Finland. Pp. A512−A570”. More literature references can also be found in these chapters.
Gustafsson, J., Alén, R., Engström, J., Korpinen, R., Kuusisto, P., Leavitt, A, Olsson, K., Piira, J., Samuelsson, A. and Sundquist, J. 2011. Pulping. In: Fardim, P. (Ed.). Chemical Pulping Part 1, Fibre Chemistry and Technology. 2nd edition. Paper Engineers’ Association, Helsinki, Finland. Pp. 187−381.
Sjöblom, K. 1988. Extended delignification in kraft cooking through improved selectivity. Part 3. The effect of dissolved xylan on pulp yield. Nordic Pulp and Paper Research Journa 3(1):34.
Sjöblom, K. and Söderqvist-Lindblad, M. 1990. Extended delignification in kraft cooking through improved selectivity. Part 4. Influence of dissolved lignin on the alkalinity. Paperi ja Puu 72(1):51–54.
Jiang, J., Greenwood, B. F., Phillips, J. R. and Becker, E. S. 1992. Extended delignification with a prolonged mild counter-current cooking stage. Appita 45(1):19–22.
Backlund, E. A. 1984. Extended delignification of softwood kraft pulp in a continuous digester. TAPPI Journal 67(11):62–65.
Johansson, B., Mjöberg, J., Sandstrom, P. and Teder, A. 1984. Modified pulping process shows promising results at Finnish mill. Pulp and Paper 58(11):124–127.
Whitley, D., Zierdt, J. and Lebel, D. 1990. Mill experiences with conversion of Kamyr digester to modified continuous cooking. TAPPI Journal 73(1):103–108.
Chamblee, W., Funk, E., Marcoccia, B., Prough, R. and McClain, G. 1996. Lo-Level feed system at the Gulf States paper mill in Demopolis, Alabama. Proceedings of TAPPI Pulping Conference, TAPPI Press, Atlanta, GA, USA. Pp. 451–463.
Marcoccia, B., Laakso, R. and McClain, G. 1996. Lo-Solids pulping: principles and applications. TAPPI Journal 79(6):179–188.
Sammartino, L. 1996. Lo-solids cooking trials at Howe Sound Pulp and Paper Ltd. Pulp & Paper Canada 97(3):61–65.
Volk J. and Young, J. 1997. Successful Lo-solids Cooking at Hinton. Pulp & Paper Canada 98(3):47–50.
Strömberg, B. 2002. Yield increases with Lo-Solids cooking. Proceedings of Congresso e Exposicao, Anual de Celulose e Papel, Sao Paulo, Brazil.
Young, J., Volk, J. and Chem, C. 1996. Successful Lo-solids Cooking at Hinton. Proceedings of 82nd Annual Meeting Technical Section, CPPA, Montreal, Canada. Pp. 37–41.
Martin, F., Nepote, J. and Girard, K. 1996. Proceedings of TAPPI Minimum Effluent Mill Symposium, TAPPI Press, Atlanta, GA, USA.
Hartler, N. and Libert, J. 1973. The behaviour of certain inorganic ions in the wood/white liquor system. Svensk Papperstidning 76(12):454–457.
Our site uses functional cookies. Functional cookies are cookies that ensure the proper functioning of the Website (e.g. cookies for login or registration, language preferences) and their installation does not require your permission.