Sökning: onr:"swepub:oai:DiVA.org:kth-187685" >
Lignin Prepared by ...
Lignin Prepared by Ultrafiltration of Black Liquor : Investigation of Solubility, Viscosity, and Ash Content
-
- Giummarella, Nicola (författare)
- KTH,Träkemi och massateknologi,Wallenberg Wood Science Center,CleanFlow Black AB, Sweden
-
- Lindgren, Christofer (författare)
- CleanFlow Black AB, Sweden
-
- Lindström, Mikael (författare)
- KTH,Fiber- och polymerteknologi,Wallenberg Wood Science Center,CleanFlow Black AB, Sweden
-
visa fler...
-
- Henriksson, Gunnar (författare)
- KTH,Fiber- och polymerteknologi,Wallenberg Wood Science Center
-
visa färre...
-
(creator_code:org_t)
- 2016-02-22
- 2016
- Engelska.
-
Ingår i: BioResources. - : North Carolina State University. - 1930-2126. ; 11:2, s. 3494-3510
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://www.ncsu.edu...
-
https://kth.diva-por... (primary) (Raw object)
-
https://ojs.cnr.ncsu...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Technical lignin, which can be potentially obtained in large amounts as a by-product from kraft pulping, represents a potential resource for manufacturing fuels and chemicals. Upgrading of lignin, by lowering its molecular weight, is a valuable alternative to precipitation from black liquor, which occurs in the Lignoboost process. The solubility properties of Lignoboost lignin and filtered lignin in a number of technically feasible solvents were compared, and it was found that both lignins were dissolved in similar solvents. With the exception of furfural, the best lignin solvents generally were organic solvents miscible with water, such as methanol. It was possible to dissolve more filtered lignin in higher concentrations than Lignoboost lignin; additionally, the viscosities of the filtered lignin solutions were also considerably lower than those of Lignoboost lignin, especially at higher concentrations. Methods for non-organic component removal from filtrated lignin were tested, and it was concluded that several cold acidic treatments after dewatering can lower the ash content to values below 0.5% by weight.
Ämnesord
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Trävetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Wood Science (hsv//eng)
Nyckelord
- Lignin
- Ultrafiltration
- Liquid biofuel
- Solubility
- Viscosity
- Ash content
- Fiber- och polymervetenskap
- Fibre and Polymer Science
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas