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Valorization potential of technical lignins from Norway spruce (Picea abies) via pyrolysis

Autor: Maryam Ghalibaf, Raimo Alén, Idoia Hita, Peter J. Deuss, Hero Jan Heeres, Paul de Wild

Publikováno v: Journal of Analytical and Applied Pyrolysis, 165:105549. ELSEVIER SCIENCE BV

Analytical pyrolysis (Py-GC/MS) on mg-scale of Norway spruce (Picea abies)-derived kraft lignin, ethanosolv lignin, and dried lignin-rich soda-anthraquinone (AQ) black liquors was studied at 500 °C to compare the valorization potential of these mate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6eafa08d27e322f96da53e2eef2b317
https://research.rug.nl/en/publications/f63244b4-4709-4060-b843-a567bfabfb15

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Lignin Inter-Diffusion Underlying Improved Mechanical Performance of Hot-Pressed Paper Webs

Autor: Gunilla Pettersson, Tove Joelsson, Per Engstrand, Arttu Miettinen, Amanda Mattsson, Jukka A. Ketoja

Publikováno v: Polymers, Vol 13, Iss 2485, p 2485 (2021)
Mattsson, A, Joelsson, T, Miettinen, A, Ketoja, J A, Pettersson, G & Engstrand, P 2021, ' Lignin Inter-Diffusion Underlying Improved Mechanical Performance of Hot-Pressed Paper Webs ', Polymers, vol. 13, no. 15, 2485 . https://doi.org/10.3390/polym13152485
Polymers
Volume 13
Issue 15

Broader use of bio-based fibres in packaging becomes possible when the mechanical properties of fibre materials exceed those of conventional paperboard. Hot-pressing provides an efficient method to improve both the wet and dry strength of lignin-cont

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bdf354bbe5b06affa4054d889b234d4
https://www.mdpi.com/2073-4360/13/15/2485

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Lignin recovery from spent alkaline pulping liquors using acidification, membrane separation, and related processing steps : A Review

Publikováno v: BioResources. 14(1):2300-2351

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=CSC_________::3286f47710b4e11e2c9f18d23d44cf30
http://juuli.fi/Record/0339609419

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Lignin recovery from spent alkaline pulping liquors using acidification, membrane separation, and related processing steps: A Review

Autor: Michael Paleologou, Jonas Kihlman, Martin A. Hubbe, Miyuru Kannangara, Raimo Alén

Publikováno v: BioResources. 14:2300-2351

The separation of lignin from the black liquor generated during alkaline pulping is reviewed in this article with an emphasis on chemistry. Based on published accounts, the precipitation of lignin from spent pulping liquor by addition of acids can be

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5d1073d0baeef05519ee446d9781421
https://doi.org/10.15376/biores.14.1.hubbe

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Activated carbon from hydrolysis lignin: Effect of activation method on carbon properties

Autor: Davide Bergna, Toni Varila, Henrik Romar, Ulla Lassi

Publikováno v: Biomass and Bioenergy. 159:106387

This study presents the effects of different activation methods to produce activated carbon from the hydrolysis lignin. Pretreatment of the feedstock with common mineral acids (HCL, HNO3, and H3PO4), different steam rates for physical activation, and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d31904a00a4a4e9eb1566c486ac0f0e
https://doi.org/10.1016/j.biombioe.2022.106387

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New, biobased carbon foams

Autor: Varila, T. (Toni)

The use of biomass has grown tremendously among energy-producing factories recently. In addition to burning biomass to produce heat and electricity, new and environment friendly products are being developed in order to utilize biomass more efficientl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______2423::ed06621a914b27de0846f8c7fbcd8d63
http://urn.fi/urn:isbn:9789526227580

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Characterization of lignin enforced tannin/furanic foams

Autor: Varila, T. (Toni), Romar, H. (Henrik), Luukkonen, T. (Tero), Hilli, T. (Tuomo), Lassi, U. (Ulla)

Publikováno v: Heliyon
Heliyon, Vol 6, Iss 1, Pp e03228-(2020)

Worldwide, tons of lignin is produced annually in pulping plants and it is mainly considered as a waste material. Usually lignin is burned to produce energy for the pulping reactors. The production of value-added materials from renewable materials li

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::f0e64a39a2d85e084d7ee1c70211ea2a
http://urn.fi/URN:NBN:fi:jyu-202002182100

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Valorization of pine kraft lignin by fractionation and partial depolymerization

Autor: Goldmann Valdés, W. M. (Werner Marcelo)

Lignins have polyphenolic structures, making them candidates to replace phenols and polyphenols in polymers. Lignins are highly recalcitrant, making their refining challenging, requiring harsh temperatures and pressures. Lignins could be partially mo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______2423::8c31fd331cfde0ca1fe769e0af065fb7
http://urn.fi/urn:isbn:9789526221786

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Ligniinin osuuden vaikutus ligniini-fenoliformaldehydihartsien kemiaan

Autor: Uski, Juha

Fenoliformaldehydihartsia valmistetaan fenolista ja formaldehydistä, joka toimii ristisilloitusagenttina. Katalyyttinä käytetään natriumhydroksidia. Formaldehydi liittyy fenolin renkaaseen hydroksyyliryhmän para- tai orto-asemiin additioreaktio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______1222::97f95e503bb6a45e2c26996e155b3c82
http://urn.fi/URN:NBN:fi:jyu-201711154259

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