One-pot selective production of levulinic acid and formic acid from spent coffee grounds in a catalyst-free biphasic system

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dc.contributor.authorKim, Borako
dc.contributor.authorYang, Jeongwooko
dc.contributor.authorKim, Minjiko
dc.contributor.authorLee, Jae Wooko
dc.date.accessioned2020-04-03T03:20:05Z-
dc.date.available2020-04-03T03:20:05Z-
dc.date.created2020-01-31-
dc.date.created2020-01-31-
dc.date.issued2020-05-
dc.identifier.citationBIORESOURCE TECHNOLOGY, v.303, pp.122898-
dc.identifier.issn0960-8524-
dc.identifier.urihttp://hdl.handle.net/10203/273805-
dc.description.abstractThis study introduces the catalyst-free production of levulinic acid (LA) and formic acid (FA) from spent coffee grounds (SCGs) as a starting material in a biphasic system of 1,2-dichloroethane (DCE)-water at temperatures above 160 degrees C. In addition to the advantage of using the biphasic system attributed to the product equilibrium, DCE served as a source of hydrogen induced by subcritical water (SCW). The effect of temperature, the amount of DIW and DCE, and the pretreatment on SCG (raw or lipid extracted SCG (LE-SCG)) on the overall reaction and humin formation were studied. The maximum conversion of LA and FA was 47 and 29 w/w% of the total convertible monosaccharides in raw SCGs while 43 and 28 w/w% of the conversion were obtained at 180 degrees C when LE-SCG was used. The solvothermal effects of two media provides a non-catalytic route to utilize undried SCG for the production of LA and FA.-
dc.languageEnglish-
dc.publisherElsevier BV-
dc.titleOne-pot selective production of levulinic acid and formic acid from spent coffee grounds in a catalyst-free biphasic system-
dc.typeArticle-
dc.identifier.wosid000516839600034-
dc.identifier.scopusid2-s2.0-85078879871-
dc.type.rimsART-
dc.citation.volume303-
dc.citation.beginningpage122898-
dc.citation.publicationnameBIORESOURCE TECHNOLOGY-
dc.identifier.doi10.1016/j.biortech.2020.122898-
dc.contributor.localauthorLee, Jae Woo-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorSpent coffee grounds (SCGs)-
dc.subject.keywordAuthorPlatform chemical-
dc.subject.keywordAuthorLevulinic acid-
dc.subject.keywordAuthorBiphasic system-
dc.subject.keywordAuthorCatalyst-free-
dc.subject.keywordPlusIN-SITU TRANSESTERIFICATION-
dc.subject.keywordPlusLIGNOCELLULOSIC BIOMASS-
dc.subject.keywordPlusGAMMA-VALEROLACTONE-
dc.subject.keywordPlusHYDROCHLORIC-ACID-
dc.subject.keywordPlusKINETICS-
dc.subject.keywordPlusWATER-
dc.subject.keywordPlusDECOMPOSITION-
dc.subject.keywordPlusPRETREATMENT-
dc.subject.keywordPlusHYDROLYSIS-
dc.subject.keywordPlusCONVERSION-
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