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Parameters Affectin...
Parameters Affecting the Cross-flow Filtration of Dissolved LignoBoost Kraft Lignin
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- Helander, Mikael (författare)
- KTH,Träkemi och massateknologi,Wallenberg Wood Science Center,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
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- Mattsson, Tuve, 1979 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Theliander, Hans (författare)
- KTH,Wallenberg Wood Science Center,Chalmers tekniska högskola,Chalmers University of Technology
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- Lindström, Mikael E. (författare)
- KTH,Träkemi och massateknologi,Wallenberg Wood Science Center,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
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(creator_code:org_t)
- 2015-10-06
- 2015
- Engelska.
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Ingår i: Journal of wood chemistry and technology. - : Taylor & Francis Group. - 0277-3813 .- 1532-2319. ; 36:1, s. 1-8
- Relaterad länk:
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- In the kraft pulping process, the lignin-containing by-product kraft black liquor is currently combusted as an energy source. LignoBoost is a technique that extracts lignin from kraft black liquor, resulting in a lignin-lean black liquor, which is returned to the process, and an extracted kraft lignin. To facilitate the use of the extracted kraft lignin in high-value applications, it can be refined via fractionation to produce a more homogeneous starting raw material. Hence, the aim of this study is to investigate the behavior of dissolved softwood kraft lignin during cross-flow filtration. The effects of the lignin concentration, pH, and ionic strength on the fractionation of the dissolved lignin during cross-flow filtration are investigated. The results indicate that large amounts of low-molecular-weight kraft lignin can be produced from solutions having a low lignin concentration. Furthermore, the effects of pH and ionic strength on the fractionation of low-molecular-weight lignin are identified within the studied ranges.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
Nyckelord
- Cross-flow filtration
- ultrafiltration
- kraft lignin
- low molecular weight
Publikations- och innehållstyp
- vet (ämneskategori)
- art (ämneskategori)
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