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A morpholinium ionic liquid for rice straw pretreatment to enhance ethanol production
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2019 (English)In: Industrial crops and products (Print), ISSN 0926-6690, E-ISSN 1872-633X, Vol. 139, article id 111494Article in journal (Refereed) Published
Abstract [en]

Rice straw was successfully pretreated with a novel and inexpensive morpholinium ionic liquid, 1-H-3-methylmorpholinium chloride ([HMMorph][Cl]). The influence of water (30, 40, 50% w/w) and dimethyl sulfoxide (DMSO) (10, 30% w/w), as co-solvents, pretreatment time (2, 3, 5 h), temperature (90, 105, 120 °C), solid loading (5, 6.7, 10% w/w), and straw particle size (<0.177, 0.177–0.841 mm, and 0.841–2 mm) were investigated for maximum ethanol production. The best results were obtained in 50% water, at 120 °C and 5% (w/w) solid loading for 5 h from 0.177 – 0.841 mm straw particles. The hydrolysis yield was increased from 33.2% to 70.1%, while ethanol production yield was improved from 21.9% to 64% of the theoretical maximum. The performance of the IL was comparable to 1-ethyl-3-methylimidazolium acetate. Simple synthesis process and dilute solution required for the pretreatment with [HMMorph][Cl] offers cost reductions in the use of ILs in biofuel production.

Place, publisher, year, edition, pages
Elsevier, 2019. Vol. 139, article id 111494
Keywords [en]
Ethanol, Hydrolysis, Morpholinium ionic liquid, Rice straw
National Category
Bioenergy
Identifiers
URN: urn:nbn:se:umu:diva-161787DOI: 10.1016/j.indcrop.2019.111494Scopus ID: 2-s2.0-85067492224OAI: oai:DiVA.org:umu-161787DiVA, id: diva2:1340465
Available from: 2019-08-05 Created: 2019-08-05 Last updated: 2019-08-06Bibliographically approved

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Mikkola, Jyri-Pekka

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CiteExportLink to record
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  • apa
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