Concurrent production of sodium lignosulfonate and ethanol from bagasse spent liquor.
Bagasse
Ethanol
Fermentation
Lignosulfonate
Spent liquor
Sulfonation
Journal
Journal of environmental management
ISSN: 1095-8630
Titre abrégé: J Environ Manage
Pays: England
ID NLM: 0401664
Informations de publication
Date de publication:
01 Feb 2019
01 Feb 2019
Historique:
received:
06
12
2017
revised:
20
09
2018
accepted:
09
10
2018
pubmed:
13
11
2018
medline:
26
9
2019
entrez:
13
11
2018
Statut:
ppublish
Résumé
This study was done with the aim of lignosulfonate and ethanol production from different spent liquors of bagasse pulping process. For this purpose, alkali lignin from bagasse alkali liquor was separated and was sulfomethylated to produce soda lignosulfonate (SLig). Furthermore, raw bagasse was directly treated with sodium sulfite in acidic and neutral conditions to produce BLig and NLig bagasse lignosulfonate, respectively. In addition, the pentoses and hexoses impurities in lignosulfonates were fermented to ethanol using Candida guilliermondii. Results showed that the molecular weight of NLig lignosulfonate was considerably high comparing to the SLig and BLig lignosulfonates. A high level of thermal resistance was found in case of SLig regarding to the other samples at 500 °C. Fermentation of the spent liquors with Candida guilliermondii led to a maximum ethanol yield of 7.0, 1.0 and 5.1 g L
Identifiants
pubmed: 30419437
pii: S0301-4797(18)31166-6
doi: 10.1016/j.jenvman.2018.10.032
pii:
doi:
Substances chimiques
Ethanol
3K9958V90M
lignosulfuric acid
8062-15-5
Cellulose
9004-34-6
Lignin
9005-53-2
bagasse
9006-97-7
Sodium
9NEZ333N27
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
819-824Informations de copyright
Copyright © 2018 Elsevier Ltd. All rights reserved.