000057731 001__ 57731
000057731 005__ 20190529115203.0
000057731 0247_ $$2doi$$a10.1039/c5cy00059a
000057731 0248_ $$2sideral$$a90320
000057731 037__ $$aART-2015-90320
000057731 041__ $$aeng
000057731 100__ $$ade la Calle, C.
000057731 245__ $$aBiobased catalyst in biorefinery processes: Sulphonated hydrothermal carbon for glycerol esterification
000057731 260__ $$c2015
000057731 5060_ $$aAccess copy available to the general public$$fUnrestricted
000057731 5203_ $$aSulphonated 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 dif-
ferent carboxylic acids, namely, acetic, butyric and caprylic acids. Product selectivity can be tuned by sim-
ply controlling the reaction conditions. On the one hand, SHTC provides one of the best selectivity towards 20 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 cata-
lysts, 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 25 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
000057731 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/CTQ2011-28124$$9info:eu-repo/grantAgreement/EC/FP7/280658/EU/Doped carbon nanostructures as metal-free catalysts/FREECATS$$9info:eu-repo/grantAgreement/ES/DGA/E11
000057731 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000057731 590__ $$a5.287$$b2015
000057731 591__ $$aCHEMISTRY, PHYSICAL$$b28 / 144 = 0.194$$c2015$$dQ1$$eT1
000057731 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000057731 700__ $$0(orcid)0000-0002-0136-5138$$aFraile, J.M.
000057731 700__ $$aGarcía-Bordejé, E.
000057731 700__ $$0(orcid)0000-0002-2676-8814$$aPires, E.$$uUniversidad de Zaragoza
000057731 700__ $$aRoldán, L.
000057731 7102_ $$12013$$2765$$aUniversidad de Zaragoza$$bDpto. Química Orgánica$$cÁrea Química Orgánica
000057731 773__ $$g5, 5 (2015), 2897-2903$$pCATALYSIS SCIENCE & TECHNOLOGY$$tCATALYSIS SCIENCE & TECHNOLOGY$$x2044-4753
000057731 8564_ $$s385815$$uhttp://zaguan.unizar.es/record/57731/files/texto_completo.pdf$$yPostprint
000057731 8564_ $$s106213$$uhttp://zaguan.unizar.es/record/57731/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000057731 909CO $$ooai:zaguan.unizar.es:57731$$particulos$$pdriver
000057731 951__ $$a2019-05-29-11:37:36
000057731 980__ $$aARTICLE