Abstract
Fractionation of lignocellulosic materials into high-yield cellulosic solid components can be accomplished with acid-catalyzed aqueous and mixed aqueous and nonaqueous media, with the latter leading to high lignin and xyland removal. Concepts combining only time and temperature pulping profile with catalyst concentration are presented to correlate these two types of fractionation methods with pulping variables. Severity concepts combining time and temperature only are often used in the pulp and paper industry. The present extension of this concept producesphenomenological descriptions that permit comparisons of different proceses and yield some pseudokinetic parameters for aspen (Populus tremuloides) acid-catalyzed fractionation.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Kleinert, T. N. and Tayenthal, K. (1932). US Patent 1,856,567.
Kleinert, T. N. (1972). US Patent 3,585,104.
Kleinert, T. N. (1974).TAPP1 57(8), 99–102
Aziz, S. (1987). Proc. Solvent Pulping—Promises and Problems, June 16–17, Appleton, Doshi and Associates, Inc., Appleton, pp. 1–10.
Paszner, L. and Cho, P. H. (1987). Proc. Solvent Pulping—Promises and Problems, June 16–17, Appleton, Doshi and Associates, Inc., Appleton, pp. 93–115.
Lora, J.H. and Aziz, S. (1985),TAPPI 68(8), 94–97.
Pye, E. K., Klein, W. R., and Lora, J. H. (1987). Proc. Solvent Pulping— Promises and Problems, June 16–17, Appleton, Doshi and Associates, Inc., Appleton, pp. 55–67.
Patt, R., Kordsachia, O., and Knoblauch, J. (1987). Proceedings of the 1987 International Symposium on Wood and Pulping Chemistry, Paris, April 27–30, Eucepa,1, 355–360.
Feckl, J. and Edel, E. (1987). Proceedings of the 1987 International Symposium on Wood and Pulping Chemistry, Paris, April 27–30, Eucepa, 1, 369–372.
Nimz, H. (1987). Proceedings of the 1987 International Symposium on Wood and Pulping Chemistry, Paris, April 27–30, Eucepa,1, IIIa-IIIk.
Holtzapple, M. T. and Humphrey, A. E. (1984),Biotechnol. Bioeng. 28, 670–676.
Sutcliffe, R., and Saddler, J. (1987),Biotechnol. Bioeng. Symp. 17, 749–762.
Tatsumoto, K., Baker, J. O., Tucker, M. P., Oh, K. K., Mohagheghi, A., Grohmann, K., and Himmel, M. E. (1988),Appl. Biotechnol. Bioeng. 18, 159–174 (1988).
Chum, H. L., Johnson, D. K., Black, S. K., Baker, J., Grohmann, K., Sarkanen, K. V., Wallace, K., and Schroeder, H. A. (1988),Biotechnol. Bioeng. 31, 643–649.
Grohmann, K., Torget, R., and Himmel, M. (1985),Biotechnol. Bioeng. Symp. 15, 59–80.
Brownell, H. H. Proceedings of the 1985 International Symposium on Wood and Pulping Chemistry, Vancouver, CPPA, p. 271.
Mackie, K. L., Brownell, H. H., West, K. L., and Saddler, J. N. (1985),J. Wood Chem. Technol. 5, 405–425.
Puls, J. K., Poutanen, K., and Viikari, L. (1985),Bioenergy-84: Biomass Conversion. (Egnèus, H. and Ellgard, A., ed.), Elsevier Applied Science, London, 3, 173–180.
Grethlein, H. E. (1985),Bio/Technology 3, 155–160.
Vroom, K. E. (1957).Pulp Paper Mag Can. 58, 228–231.
Brasch, D. J. and Free K. W. (1965).TAPPI,48(4), 245–248.
Overend, R. P. and Chornet, E. (1987).Philos. Trans. R. Soc. Lond. (A).321, 523–536.
Chum, H. L., Black, S., Johnson, D. K., and Sarkanen, K. V. (1987). Proc. Solvent Pulping—Promises and Problems, June 16–17, Appleton, Doshi and Associates, Inc., Appleton, pp. 35–41.
Bates, R. G. (1973).Determination of pH: Theory and Practice (Wiley-Inter- skience, New York), pp. 211–253.
Blakeney, A. B., Harris, P. J., Henry, R. J., and Stone, B. A. (1983),Carbohydr. Res. 113, 291.
Tirtowidjojo, S., Sarkanen, K. V., Pla, F., and McCarthy, J. L. (1988),Holzforschung. 42, 177.
Sarkanen, K. V. (1987). Proc. Solvent Pulping—Promises and Problems, June 16–17, Appleton, Doshi and Associates, Inc., Appleton, pp. 111–27.
Tirtowidjojo, S. (1984). Master of Science thesis, University of Washington, pp. 1–62.
Harned, H. S. and Owen, B. B. (1958).The Physical Chemistry of Electrolytic Solutions, 3rd ed., Chapters 3, 4, and 11, Reinhold, New York, pp. 59–92; 93–157; 452–484.
Rochester, C. H. (1970).Acidity Functions, Academic, New York.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Chum, H.L., Johnson, D.K., Black, S.K. et al. Pretreatment-Catalyst effects and the combined severity parameter. Appl Biochem Biotechnol 24, 1–14 (1990). https://doi.org/10.1007/BF02920229
Issue Date:
DOI: https://doi.org/10.1007/BF02920229