Zobrazeno 1 - 10
of 194
pro vyhledávání: '"Hans Theliander"'
Publikováno v:
Membranes, Vol 13, Iss 10, p 834 (2023)
Recent studies on membrane fouling have made considerable progress in reducing its adverse effects. However, a lack of comprehensive studies focusing on the underlying fouling mechanisms remains. This work aims to address a part of this gap by invest
Externí odkaz:
https://doaj.org/article/e08e589b680e4c08b9f2a80cf071d755
Autor:
Anders Ahlbom, Marco Maschietti, Rudi Nielsen, Huyen Lyckeskog, Merima Hasani, Hans Theliander
Publikováno v:
Energies, Vol 14, Iss 4, p 932 (2021)
In this study, Kraft lignin was depolymerised by hydrothermal liquefaction in near-critical water (290–335 °C, 250 bar) using Na2CO3 as an alkaline catalyst. Isopropanol was used as a co-solvent with the objective of investigating its capping effe
Externí odkaz:
https://doaj.org/article/179b646acc574a9db52658bd75ac87df
Autor:
Weizhen Zhu, Hans Theliander
Publikováno v:
BioResources, Vol 10, Iss 1, Pp 1696-1714 (2015)
Extracting lignin from black liquor is an attractive option in modern pulp mills as a unit process for a combined biorefinery. The lignin obtained can be utilized as solid fuel or other high-value added products. The precipitation equilibrium of kraf
Externí odkaz:
https://doaj.org/article/297909b3062340738aeea711fa71a424
Publikováno v:
BioResources, Vol 9, Iss 4, Pp 6002-6018 (2014)
Ionic liquids are of potential interest in the processing of lignocellulosic biomass. In this study, the ionic liquid co-solvent system of 1-methylimidazole (MIM) and 1-ethyl-3-methyl-imidazolium acetate (EMIMAc) was used to solvate LignoBoost lignin
Externí odkaz:
https://doaj.org/article/2253ac38f39a49d481c2bc4b3cf25c01
Autor:
Josefina Lindblom, Hans Theliander
Publikováno v:
KONA Powder and Particle Journal, Vol 19, Iss 0, Pp 109-117 (2014)
The influence of carbon dioxide on ring and ball formation in a pilot-scale rotary kiln has been investigated. The balls were found to have a higher specific surface area and a higher content of residual carbonate compared with the rings and dusts: t
Externí odkaz:
https://doaj.org/article/639d0eb913b644a992ccc324ce9912ae
Publikováno v:
BioResources, Vol 9, Iss 1, Pp 1038-1054 (2013)
Ionic liquid treatment has been reported by several researchers as a possible step in the process of fractionating lignocellulosic biomass within the biorefinery concept. However, understanding how solvation can be achieved and how the feedstock biop
Externí odkaz:
https://doaj.org/article/c557455ef65b4331a77a02b41b2bf289
Publikováno v:
BioResources, Vol 7, Iss 2, Pp 1666-1683 (2012)
Today, petroleum-based superabsorbents are widely used, but interest in renewable alternatives is on the rise. This study presents two wood-based absorbent materials suitable for various absorption applications as an alternative to petroleum-based pr
Externí odkaz:
https://doaj.org/article/7b50095210d64006894aea533c247f4e
Publikováno v:
BioResources, Vol 7, Iss 2, Pp 2051-2074 (2012)
The aim of this work is to open up the structure of wood while retaining a large amount of hemicelluloses, in particular (galacto)glucomannans. The effects of pre-treatments on wood meal from spruce (Picea abies) with a reducing agent (NaBH4) combine
Externí odkaz:
https://doaj.org/article/218ca94d724f48d0a84e4a7e414c9256
Publikováno v:
BioResources, Vol 4, Iss 1, Pp 15-25 (2009)
Fuel ethanol can be produced from pretreated spruce wood through enzymatic hydrolysis and fermentation. Processed spruce wood samples (acid-catalyzed steam hydrolysis followed by enzymatic hydrolysis and fermentation) were fractionated into water-sol
Externí odkaz:
https://doaj.org/article/b2161d6850874d9a8bd4410b8f8e8435
Publikováno v:
Holzforschung. 77:318-325
Oxidation of kraft pulp using hydrogen peroxide under mild acidic conditions can be applied in order to obtain new functionality of the fibres, in the form of carbonyl groups. The hydrogen peroxide concentration must, however, be higher than consumed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0003d7e4064162bcf214a837c0980957
https://doi.org/10.1515/hf-2022-0184
https://doi.org/10.1515/hf-2022-0184