Effects of washing method on the bagasse pulping characteristics by Sulfur Dioxide- Ethanol-Water (SEW) process

Document Type : Research Paper

Authors

1 M.Sc. Graduate in pulp and paper industry, Gorgan University of Agricultural Sciences & Natural Resources

2 Associate Professor in pulp and paper industry, Gorgan University of Agricultural Sciences & Natural Resources

3 Assistant Professor in pulp and paper industry, Gorgan University of Agricultural Sciences & Natural Resources

4 Ph.D. Student in pulp and paper industry, Gorgan University of Agricultural Sciences & Natural Resources

Abstract

SO2-ethanol-water (SEW) pulping can be considered a hybrid between solvent and acid sulfite pulping processes. Recently this process in order to separation the principal components (cellulose, hemicelluloses and lignin) have been considered. The main objective of this study was to investigate the effects of washing method on the bagasse pulping characteristics by acidic fractionation of Sulfur Dioxide- Ethanol-Water (SEW). Variables included two washing pulp methods (water and 40 v/v% ethanol-water solutions), pulping duration (30-100 min.), and temperature (120 and 135 OC). Then, pulps were washed twice with 40% v/v ethanol-water at 60°C (L: W 2 L kg-1) and with deionized water at room temperature (L: W 20 L kg-1). The results showed that the final yield pulp due to lignin greater solubility in 40 v/v % ethanol-water compared to conventional systems (washing by water) decreased that the diminishing returns are statistically significant at the 1% level. Pulping result at 120 and 135 °C at different time period showed that increase in the pulping duration, kappa number is reduced.

Keywords

References

[1] Vishtal, A. and Kraslawski, A., 2011. Challenges in industrial applications of technical lignins. BioResources, 6(3):3547-3568.
[2] Tan, T., Yu, J. and Shang, F., 2011. Biorefinery Engineering (Comprehensive Biotechnology: Second Edition), Acasemic Press: 815-828.
[3] Hui, S., Ying-kai, X. and Guo-zhi, X., 2010. Isolation of hemicelluloses from wood chips via extraction with kraft green liquor, chem. Res. Chinese universities, 26(4):667-671.
[4] Bajpai, P., 2013. Biorefinery in the pulp and paper technology. Elsevier academic press.ISBN: 978-0-12-409508-3.
[5] Sklavounos, E., 2014. Conditioning of SO2-ethanol-water (SEW) spent liquor from lignocellulosics for ABE fermentation to biofuels and chemicals, Doctoral Dissertation. Department of Forest Products Technology, Aalto University.
[6] Yamamoto, M.,  2014. SO2-ethanol-water fractionation and enzymatic hydrolysis of forest biomass, Doctoral Dissertation, Department of forest products Technology. Aalto University.
[7] Fan, L., Ruan, R., Liu, Y., Wang, Y. and Tu, C., 2015. Effects of extraction conditions on the characteristics of ethanol organosolv lignin from bamboo (Phyllostachys pubescens Mazel). BioResources. 10(4):7998-8013.
[8] Moniz, P., Lino, J., Duarte, L. C., Roseiro, L. B., Boeriu, C. G., Pereira, H. and Carvalheiro, F., 2015. Fractionation of hemicelluloses and lignin from rice straw by combining autohydrolysis and optimised mild organosolv delignification. BioResources,10(2):2626-2641.
[9] Sridach, W., 2010. The environmentally benign pulping process of non-wood fibers. Suranaree J. Sci. Technol., 17(2):105-123.
[10] Iakovlev, M., 2011. SO2-ethanol-water (SEW) fractionation of lignocelluloscis. Doctoral Dissertation, Department of forest products technology, Aalto University.
[11] Sklavounos, E., Iakovlev, M. and Heiningen, A.V.,  2013a. Study on conditioning of SO2-Ethanol-Water spent liquor from spruce chips/softwood biomass for ABE fermentation. Industrial & Engineering Chemistry Research.52:4351-5359.
[12] Sklavounos, E., Iakovlev, M., Survase, S., Granstrom, T. and Heiningen, A.V.,  2013b. Oil palm empty fruit bunch to biofuels and chemicals via SO2-Ethanol-Water fractionation and ABE fermentation. Bioresource Technology,147:102-109.
[13] Survase, S.A., Sklavounos, E., Jurgens, G., Heiningen, A.V. and Granstrom, T., 2011. Continuous acetone-butanol-ethanol-ethanol fermentation using SO2-ethanol-water spent liquor from spruce. Bioresource Technology,102:10996-11002.
[14] Iakovlev, M., Hiltunen, E. and Heiningen, A.V., 2010. Paper technical potential of spruce SO2-Ethanol-Water (SEW) pulp compared to kraft pulp. Nordic pulp and paper research journal, 25(4):428-433.
[15] Sixta, H., Iakovlev, M., Testova, L., Roselli, A., Hummel, M., Borrega, M., Van Heiningen, A., Froschauer, C. and Schottenberger, H., 2013. Novel concepts of dissolving pulp production. Cellulose, 20:1547-1561.
[16] Iakovlev, M., You, X., Heiningen, A.V. and Sixta, H., 2014a. SO2–ethanol–water (SEW) fractionation of spruce: kinetics and conditions for paper and viscose-grade dissolving pulps. RSC Adv, 4:1938-1950.
[17] Iakovlev, M., You, X., Heiningen, A.V. and Sixta, H., 2014b. SO2–ethanol–water (SEW) fractionation process: production of dissolving pulp from spruce. Cellulose. 21(3):1419-1429.
[18] Alfaro, A., Perez, A., Garcia, J.C., Lopez, F., Zamudio, M.A.M. and Rodriguez, A., 2009. Ethanol and soda pulping of Tagasaste wood neural fuzzy modeling. Cellulose chemistry and technology, 43(7-8):295-30619
[19] Iakovlev, M., Paakkonen, T. and Heiningen, A.V., 2009. Kinetics of SO2-ethanol-water pulping of spruce. Holzforschung. 63(6):779-784.
[20] Yamamoto, M., Iakovlev, M. and Heiningen, A.V., 2011. Total mass balances of SO2-ethanol-water (SEW) fractionation of forest biomass. Holzforschung. 65: 559-565.
[21] Iakovlev, M., Sixta, H. and Heiningen, A.V., 2011. SO2-Ethanol-Water (SEW) Pulping: II. Kinetics for Spruce, Beech and Wheat Straw. Journal of Wood Chemistry and Technology, 31:250-266.
[22] Iakovlev, M. and Heiningen, A.V., 2011. SO2-Ethanol-Water (SEW) Pulping: I. Lignin Determination in Pulps and Liquors. Journal of Wood Chemistry and Technology, 31:233-249.
[23] Iakovlev, M. and Heiningen, A.V., 2012a.  Kinetics of fractionation by SO2-ethanol-water (SEW) treatment: understanding the deconstruction of spruce wood chips. RSC Advances. 2:3057-3068.
[24] Iakovlev, M. and Heiningen, A.V., 2012b. Efficient fractionation of spruce by SO2-Ethanol-Water treatment: closed mass balances for carbohydrates and sulfur. ChemSusChem. 5:1625-1637.
[25] Yamamoto, M., Iakovlev, M. and Heiningen, A.V., 2014. Kinetics of SO2-ethanol-water (SEW) fractionation of hardwood and softwood biomass, Bioresource Technology, 155:307-313.
[26] Saraeian, A,R. and Khalili, A., 2013. Pulp production technology with kraft process. Aiij Publications. 360 pages. (In Persian).
[27] Mirshokraei, S.A., 2002. Wood chemistry: fundamentals and applications (Eero Sjöström). Aiij Publications. 198 pages. (Translated In Persian).
[28] Mollae, M., Enayati, A., Hamzeh, Y. and Roostaee, M., 2010. Preparation of bleached soda pulp from canola stalks. Iranian journal of wood and paper science research, 25(1):80-90. (In Persian).
Iranian Journal of Wood and Paper Industries
Volume 7, Issue 4
March 2017
Pages 549-559

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