Influence of long-term heat treatment of kraft black liquor on lignin precipitation and material properties
-
Thomas Pichler
,
Silvia Maitz
Abstract
In the present study, the influence of long-term heat treatment of black liquor with focus on a subsequent lignin precipitation process was investigated. The well-known CO2 approach to precipitate a certain amount of lignin from heat-treated black liquor was studied within defined thermal conditions. Several important characteristics of lignin such as molar mass and functional groups were analysed. Viscosity and buffer capacity of black liquor were also studied. Results showed a reduction in lignin yield as a result of a decrease in molar mass and lignin demethylation after the heat treatment. The acid consumption during precipitation was found to be higher after the heat treatment.
Funding source: Austrian Research Promotion
Award Identifier / Grant number: 861476
Funding statement: We thank the Austrian Research Promotion Agency for the financial support in the project Flippr2 (Funder Id: http://dx.doi.org/10.13039/501100004955, grant no. 861476) and the project consortium for the collaboration in this study.
Acknowledgements
Dr. I. Sumerskii and G. Zinovyev (BOKU University) are acknowledged for performing the isolation and chemical analysis of lignin from black liquors. We also thank the laboratory team of CEET and Alexander Kaufmann for their appreciated assistance during the experiments.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Employment or leadership: None declared.
Honorarium: None declared.
References
Ball, F.J., Pueschel, R. (1961) Treatment of kraft black liquor and product. US2976273.Search in Google Scholar
Benigni, J.D., Goldstein, I.S. (1971) Neutral hydrolysis of alkali lignin to monomeric phenols. J. Polym. Sci. C: Polym. Symp. 475:467–475.10.1002/polc.5070360135Search in Google Scholar
Fatehi, P., Chen, J. (2016) Extraction of technical lignins from pulping spent liquors, challenges and opportunities. In: Production of Biofuels and Chemicals from Lignin. Eds. Fang, Z., Smith, R.L. Springer, Singapore. pp. 35–54.10.1007/978-981-10-1965-4_2Search in Google Scholar
Hannus, M., Björk, M., Garoff, N., Englund, I. (2013) Process for production of precipitated Lignin from black liquor and precipitated lignin produced by the process. US 2013/0131326 A1, Stora Enso OYJ.Search in Google Scholar
Helander, M., Theliander, H., Lawoko, M., Henriksson, G., Zhang, L., Lindström, M.E. (2013) Fractionation of technical lignin: molecular mass and pH effects. BioResources 8:2270–2282.10.15376/biores.8.2.2270-2282Search in Google Scholar
Hu, L., Pan, H., Zhou, Y., Zhang, M. (2011) Methods to improve lignin’s reactivity as a phenol substitute and as replacement for other phenolic. BioResources 6:3515–3525.10.15376/biores.6.3.3515-3525Search in Google Scholar
Kannangara, M., Marinova, M., Fradette, L., Paris, J. (2016) Effect of mixing hydrodynamics on the particle and filtration properties of precipitated lignin. Chem. Eng. Res. Des. 105:94–106.10.1016/j.cherd.2015.11.003Search in Google Scholar
Korntner, P., Sumerskii, I., Bacher, M., Rosenau, T., Potthast, A. (2015) Characterization of technical lignins by NMR spectroscopy: optimization of functional group analysis by 31P NMR spectroscopy. Holzforschung 69:807–814.10.1515/hf-2014-0281Search in Google Scholar
Kouisni, L., Holt-Hindle, P., Maki, K., Paleologou, M. (2014) The LignoForce System: a new process for the production of high-quality lignin from black liquor. Pulp Pap. Canada 115:18–22.Search in Google Scholar
Li, J., Henriksson, G., Gellerstedt, G. (2007) Lignin depolymerization/repolymerization and its critical role for delignification of aspen wood by steam explosion. Bioresour. Technol. 98: 3061–3068.10.1016/j.biortech.2006.10.018Search in Google Scholar PubMed
Li, J., Zhang, J., Zhang, S., Gao, Q., Li, J., Zhang, W. (2017) Fast curing bio-based phenolic resins via lignin demethylated under mild reaction condition. Polymers (Basel) 9:428.10.3390/polym9090428Search in Google Scholar PubMed PubMed Central
Louhelainen, J., Alen, R., Zielinski, J., Sagfors, P. (2002) Effects of oxidative and non-oxidative thermal treatments on the viscosity and chemical composition of softwood kraft black liquor. J. Pulp Pap. Sci. 28:285–291.Search in Google Scholar
Öhman, F., Wallmo, H., Theliander, H. (2007) Precipitation and filtration of lignin from black liquor of different origin. Nord. Pulp Pap. Res. J. 22:188–193.10.3183/npprj-2007-22-02-p188-193Search in Google Scholar
Okamoto, T., Takeda, H., Funabiki, T., Takatani, M., Hamada, R. (1996) Fundamental studies on the development of lignin-based adhesives, I. Catalytic demethylation of anisole with molecular oxygen. React. Kinet. Catal. Lett. 58:237–242.10.1007/BF02067028Search in Google Scholar
Sawamura, K., Tobimatsu, Y., Kamitakahara, H., Takano, T. (2017) Lignin functionalization through chemical demethylation: preparation and tannin-like properties of demethylated guaiacyl-type synthetic lignins. ACS Sustain. Chem. Eng. 5:5424–5431.10.1021/acssuschemeng.7b00748Search in Google Scholar
Small, J.D., Fricke, A.L. (1985) Thermal stability of kraft black liquor viscosity at elevated temperatures. Ind. Eng. Chem. Prod. Res. Dev. 24:608–614.10.1021/i300020a022Search in Google Scholar
Sulaeva, I., Zinovyev, G., Plankeele, J.M., Sumerskii, I., Rosenau, T., Potthast, A. (2017) Fast track to molar-mass distributions of technical lignins. ChemSusChem 10:629–635.10.1002/cssc.201601517Search in Google Scholar PubMed
Sumerskii, I., Zweckmair, T., Hettegger, H., Zinovyev, G., Bacher, M., Rosenau, T., Potthast, A. (2017) A fast track for the accurate determination of methoxyl and ethoxyl groups in lignin. RSC Adv. 7:22974–22982.10.1039/C7RA00690JSearch in Google Scholar
Tomani, P. (2010) The lignoboost process. Cellul. Chem. Technol. 44:53–58.Search in Google Scholar
Wallmo, H., Richards, T., Theliander, H. (2007) Lignin precipitation from kraft black liquors: kinetics and carbon dioxide absorption. Pap. Ja Puu 89:436–442.Search in Google Scholar
Wallmo, H., Richards, T., Theliander, H. (2009a) An investigation of process parameters during lignin precipitation from kraft black liquors: a step towards an optimised precipitation operation. Nord. Pulp Pap. Res. J. 24:158–164.10.3183/npprj-2009-24-02-p158-164Search in Google Scholar
Wallmo, H., Theliander, H., Jönsson, A., Wallberg, O. (2009b) The influence of hemicelluloses during the precipitation of lignin in kraft black liquor. Chem. Pulp. 24:165–171.10.3183/npprj-2009-24-02-p165-171Search in Google Scholar
Wikberg, H., Ohra-aho, T., Leppävuori, J., Liitiä, T. (2016) Method for activating and precipitating lignin. WO 2016/207493 A1, Teknologian Tutkimuskeskus Vtt OY.Search in Google Scholar
Wikberg, H., Ohra-aho, T., Leppävuori, J., Liitiä, T., Kanerva, H. (2018) Method for producing reactive lignin. WO 2018/115592 A1, Teknologian Tutkimuskeskus Vtt OY.Search in Google Scholar
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Articles in the same Issue
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- Relationship between attenuated total reflectance Fourier transform infrared spectroscopy of western juniper and natural resistance to fungal and termite attack
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Articles in the same Issue
- Frontmatter
- Wood color changes and termiticidal properties of teak heartwood extract used as a wood preservative
- Relationship between attenuated total reflectance Fourier transform infrared spectroscopy of western juniper and natural resistance to fungal and termite attack
- Natural durability of four Tunisian Eucalyptus spp. and their respective compositions in extractives
- Understanding the structural changes of lignin in poplar following steam explosion pretreatment
- Influence of long-term heat treatment of kraft black liquor on lignin precipitation and material properties
- Effect of structure of technical lignin on the electrochemical performance of lignin-derived porous carbon from K2CO3 activation
- The effect of ionic liquid and superbase pre-treatment on the spring-back, set-recovery and Brinell hardness of surface-densified Scots pine
- Microwave-assisted direct transformation of lignocellulose into methyl glycopyranoside in ionic liquid
- Uncovering the ultrastructure of ramiform pits in the parenchyma cells of bamboo [Phyllostachys edulis (Carr.) J. Houz.]
