Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Olesya Fearon"'
Publikováno v:
BioResources, Vol 17, Iss 4, Pp 6079-6093 (2022)
Large quantities of lignin are produced as by-streams via chemical pulping and emerging biorefinery processes. These lignins are typically water-insoluble; however, they can be converted into a water-soluble form by chemical modifications. A novel Li
Externí odkaz:
https://doaj.org/article/afb066a01b4840f18d0f823a160399f8
Publikováno v:
Polymers, Vol 15, Iss 4, p 992 (2023)
The purpose of this study was to elucidate the structures and functional properties of tannin- and lignin-derived nano- and microparticles and the coatings prepared from them. Nanoparticles prepared from technical lignins and water-insoluble tannin o
Externí odkaz:
https://doaj.org/article/9f628ad946d64226b8aa1d8eaae7e74a
Autor:
Kalliola, Neethi Rajagopalan, Iris Winberg, Olesya Fearon, Giuseppe Cardellini, Tiina Liitia, Anna
Publikováno v:
Sustainability; Volume 14; Issue 17; Pages: 10897
Bio-based products can help us to reach sustainability goals and reduce our dependency on fossil-based raw materials. Lignin is an abundantly available bio-based material. Recently, a concept of an alkali–O2 oxidation (LigniOx) process for feasibly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::508a11f58ae0f7cabe1e675b524d8bb2
Publikováno v:
Fearon, O 2020, ' Detailed Modeling of Kraft Pulping Chemistry. Delignification ', Industrial & Engineering Chemistry Research, vol. 59, no. 29, pp. 12977-12985 . https://doi.org/10.1021/acs.iecr.0c02110
This work introduces a phenomena-based model for delignification in the kraft pulping process. The solubilization of lignin is described as a set of chemical reactions representing the entire chemistry of lignin degradation as well as dissolution of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4caa94aa156867fe5691d78bcaf0bdd0
https://doi.org/10.1021/acs.iecr.0c02110
https://doi.org/10.1021/acs.iecr.0c02110
Publikováno v:
Sustainability
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=r3c4b2081b22::4534bc745f44f7ee2eb61b85385d819e
Publikováno v:
NWBC 2022
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=r3c4b2081b22::15a60387db8ab5df4e367c898c1e06a9
Publikováno v:
Fearon, O, Polizzi, V, Vandezande, P & Kalliola, A 2022, Lignin Based Polyacids to Substitute Fossil-Based Materials in Coatings Formulations . in A Virtanen, K Torvinen & J Vepsäläinen (eds), NWBC 2022 : The 10th Nordic Wood Biorefinery Conference . VTT Technical Research Centre of Finland, VTT Technology, no. 409, pp. 167-171, 10th Nordic Wood Biorefinery Conference, NWBC 2022, Helsinki, Finland, 25/10/22 . < https://publications.vtt.fi/pdf/technology/2022/T409.pdf >
VTT Technical Research Centre of Finland-PURE
VTT Technical Research Centre of Finland-PURE
Coatings provide protection against moisture, can improve fire resistance properties and simultaneously act as decoration. The aim of this work is to develop sustainable bio-based polyacids to substitute fossil-based materials in polyester and alkyd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::14197e305d9901930a390f30d690b58c
https://cris.vtt.fi/en/publications/f4d97aac-2349-4372-95de-0a82da217598
https://cris.vtt.fi/en/publications/f4d97aac-2349-4372-95de-0a82da217598
Publikováno v:
Fearon, O, Liitiä, T & Kalliola, A 2020, ' LigniOx lignins for dispersing special carbon black ', Annual transactions of the Nordic Rheology Society, vol. 28, pp. 73 . < https://nrs.blob.core.windows.net/pdfs/nrspdf-4af2b60e-8a6e-4d51-a7c3-2b45749e8ea6.pdf >
VTT Technical Research Centre of Finland-PURE
VTT Technical Research Centre of Finland-PURE
The current study represents the excellent performance of oxidized kraft, organosolv, and hydrolysis lignins as dispersant for special carbon black (CB). The special CB dispersions were analysed at first day of preparation and after two weeks. Stable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::7d7ae93d4482c146bf677e590bde953e
https://cris.vtt.fi/ws/files/69920302/nrspdf_4af2b60e_8a6e_4d51_a7c3_2b45749e8ea6.pdf
https://cris.vtt.fi/ws/files/69920302/nrspdf_4af2b60e_8a6e_4d51_a7c3_2b45749e8ea6.pdf
Autor:
Raimo Alén, Susanna Kuitunen, Tapani Vuorinen, Vesa Nykänen, Kyösti Ruuttunen, Ville Alopaeus, Olesya Fearon
Publikováno v:
Fearon, O 2020, ' Detailed modeling of the kraft pulping chemistry: carbohydrate reactions ', AIChE Journal, vol. 66, no. 8, e16252 . https://doi.org/10.1002/aic.16252
The article introduces a detailed model for carbohydrate chemistry in kraft pulping. This article is continuation to the modeling work carried out for hot water extraction and chemical pulp bleaching. The model includes galactoglucomannan, xylan, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::802ee5989395237cce72ab8f7e92e81c
http://urn.fi/URN:NBN:fi:jyu-202004282948
http://urn.fi/URN:NBN:fi:jyu-202004282948
Publikováno v:
Fearon, O, Kuitunen, S & Vuorinen, T 2016, ' Reaction kinetics of strong nucleophiles with a dimeric non-phenolic lignin model compound with α-carbonyl functionality (adleron) in aqueous alkali solution ', Holzforschung, vol. 70, no. 9, pp. 811-818 . https://doi.org/10.1515/hf-2015-0236
The degradation kinetics of a non-phenolic lignin model compound with α-carbonyl functionality (adlerone) has been studied by varying temperature and concentrations of sodium hydroxide, sodium hydrogen sulfide, and sodium sulfite. The kinetics of ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::507110177be3c47c2e30af309a0964bf
https://cris.vtt.fi/en/publications/a38293b6-a74c-42ed-9dfc-d6c0d9eda8ac
https://cris.vtt.fi/en/publications/a38293b6-a74c-42ed-9dfc-d6c0d9eda8ac