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On the hydrothermal...
On the hydrothermal depolymerisation of kraft lignin using glycerol as a capping agent
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- Ahlbom, Anders, 1993 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Maschietti, Marco, 1974 (author)
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Nielsen, Rudi (author)
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- Hasani, Merima, 1978 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Theliander, Hans, 1956 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2023-01-26
- 2023
- English.
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In: Holzforschung. - : Walter de Gruyter GmbH. - 1437-434X .- 0018-3830. ; 77:3, s. 159-169
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https://research.cha... (primary) (free)
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https://doi.org/10.1...
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Abstract
Subject headings
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- Depolymerisation of kraft lignin under hydrothermal conditions was investigated at short residence times (1–12 min) with glycerol being used as a capping agent. The weight average molecular weight (M w) of the products decreased within the first minute of residence time, with the inter-unit ether linkages breaking accordingly. Furthermore, the M w of the product fractions decreased at increasing residence times, while the char yield increased. Short residence times thus appear to be beneficial for mitigating the formation of char. Also, addition of NaOH reduced the yield of char. Although the addition of glycerol caused a decrease in the M w of the products, it seemed to increase the yield of char and therefore might not be a suitable capping agent for kraft lignin depolymerisation.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Skogsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Forest Science (hsv//eng)
Keyword
- HTL
- hydrothermal liquefaction
- kraft lignin
- depolymerisation
- glycerol
Publication and Content Type
- art (subject category)
- ref (subject category)
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