Impact of wood chip leaching pretreatment on wood chemical composition
Source abstract
Abstract
The effect of wood chip acid leaching pretreatment on non-process elements removal and its impact on wood chemical components has been examined. Acid leaching treatments were carried out using two different acid pretreatment approaches: (1) acidified water and (2) filtrate from an acidic bleaching stage. Optimization experiments to identify the most suitable leaching conditions with regard to non-process elements removal and chemical oxygen demand generation were performed. The incorporation of an acid leaching stage significantly reduced the non-process elements content in the wood chips. Carbohydrate content and other wood constituents were not negatively affected by the applied pretreatment.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Wood Treatment and Properties · Lignin and Wood Chemistry
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
Show source-provided references
1. Lundqvist, F., Brelid, H., Saltberg, A., et al., Appita J. 59(6):493(2006).
2. Doldán, J., Poukka, O., Salmenoja, K., et al., O Papel 72(7): 47(2011).
3. Svensson, J., “Non-process elements in the green liquor system,” Department of Chemical Engineering, Lund University, Lund, Sweden. Available [Online] http://www.chemeng.lth.se/exjobb/ E640.pdf <12Dec2014>.
4. Yuan, Z., d’Entremont, M., Ni, Y., et al., Pulp Pap. Can. 98(11): 24(1997).
5. Lachenal, D., Nguyen Thi, N.B., Chirat, C., et al., Pap. Puu 79(4): 252(1997).
6. Gilbert, A.F., Pavlovova, E., and Rapson, W.H., Tappi 56(6): 95(1973).
7. Basta, J., Holtinger, L., Hermansson, W., et al., “Metal management in TCF/ECF bleaching,” Int. Pulp Bleaching Conf., TAPPI PRESS, Atlanta, GA, USA, 1994, p. 29.
8. Lapierre, L., Bouchard, J., Berry, R.M., et al., J. Pulp Pap. Sci. 21(8): J268(1995).
9. Ali, T., McArthur, D., Stott, D., et al., J. Pulp Pap. Sci. 12(6): J166(1986).
10. Gupta, V.N., Pulp Pap. Mag. Can. 71(16): 69(1970).10.1017/S0008413100006745 ↗
11. Forsskåhl, I., in Papermaking Science and Technology, Book 3 (P. Stenius, Ed.), TAPPI PRESS and Finnish Paper Engineers Association, Atlanta and Helsinki, 2000, Chap. 5.
12. Lundqvist, F., Brelid, H., Saltberg, A., et al. “Removal of nonprocess elements from hardwood chips prior to kraft cooking,” 13th Int. Symp. Wood, Fibre Pulping Chem., APPITA, Rotorua, New Zealand, 2005, p. 147.
13. Tran, H. and Vakkilainnen, E.K., “The kraft chemical recovery process,” TAPPI Kraft Recovery Short Course, TAPPI PRESS, Atlanta, 2009
14. Taylor, K. and Bossons, D., Pulp Pap. Can. 107(3): T63(2006).
15. McGuffie, B. and Taylor, K., Pulp Pap. Can. 108(3): T49(2007).
16. Ulmgren, P. and Raadestroem, R., Nord. Pulp Pap. Res. J. 12(3): 167(1997).10.3183/npprj-1997-12-01-p032-041 ↗
17. Crouse, N.E. and Stapley, C.E., Pulp Pap. Can. 80(C): T93(1979).
18. Moreira, E., Colodette, J.L., Gomide, J.L., et al., J. Wood Chem. Technol. 28(2): 137(2008).10.1080/02773810802125073 ↗
19. Gomide J.L. and Demuner, B.J. O Papel 47(8): 36(1986).
20. Santos, R.B., Capanema, E.A., Balakshin, M.Y., et al., BioResources 6(4): 3623(2011).10.15376/biores.6.4.3623-3637 ↗
21. Solar, R., Kacik, F., and Melcer, I., Nord. Pulp Pap. Res. J. 2(4): 139(1987).10.3183/npprj-1987-02-04-p139-141 ↗
22. Englyst, H.N. and Cummings, J.H., Analyst 109(7): 937(1984).10.1039/an9840900937 ↗
23. Lin, S.Y. and Dence, C.W. (Eds.), Methods in Lignin Chemistry, Springer, Berlin, 1992.10.1007/978-3-642-74065-7 ↗
24. Colodette, J.L., Rothenberg, S., and Dence, C.W., J. Pulp Pap. Sci. 14(6): J126(1988).
25. Brelid, H., “Chip leaching before cooking,” 7th Int. Conf. New Available Technol., AB Svensk Papperstidning, Stockholm, 2002, p. 17.
26. Gomide, J.L., Colodette, J.L., Oliveira, R.C.D., et al., Rev. Árvore 29(1): 129(2005).10.1590/S0100-67622005000100014 ↗