English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/154642
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Biobased catalyst in biorefinery processes: sulphonated hydrothermal carbon for glycerol esterification

AuthorsCalle, Carlos de la; Fraile, José M. ; García-Bordejé, José Enrique ; Pires, Elísabet; Roldán, Laura
Issue Date2015
PublisherRoyal Society of Chemistry (UK)
CitationCatalysis Science and Technology 5(5): 2897-2903 (2015)
AbstractSulphonated hydrothermal carbon (SHTC), obtained from d-glucose by mild hydrothermal carbonisation and subsequent sulphonation with sulphuric acid, is able to catalyse the esterification of glycerol with different carboxylic acids, namely, acetic, butyric and caprylic acids. Product selectivity can be tuned by simply controlling the reaction conditions. On the one hand, SHTC provides one of the best selectivity towards monoacetins described up to now without the need for an excess of glycerol. On the other hand, excellent selectivity towards triacylglycerides (TAG) can be obtained, beyond those described with other solid catalysts, including well-known sulphonic resins. Recovery of the catalyst showed partial deactivation of the solid. The formation of sulphonate esters on the surface, confirmed by solid state NMR, was the cause of this behaviour. Acid treatment of the used catalyst, with subsequent hydrolysis of the surface sulphonate esters, allows SHTC to recover its activity. The higher selectivity towards mono- and triesters and its renewable origin makes SHTC an attractive catalyst in biorefinery processes.
URIhttp://hdl.handle.net/10261/154642
DOI10.1039/C5CY00059A
Identifiersdoi: 10.1039/C5CY00059A
e-issn: 2044-4761
issn: 2044-4753
Appears in Collections:(ICB) Artículos
(ISQCH) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.