000151454 001__ 151454 000151454 005__ 20250313085413.0 000151454 0247_ $$2doi$$a10.1016/j.biombioe.2025.107744 000151454 0248_ $$2sideral$$a143144 000151454 037__ $$aART-2025-143144 000151454 041__ $$aeng 000151454 100__ $$0(orcid)0000-0001-9626-3726$$aRaso, R. 000151454 245__ $$aAqueous phase hydrogenolysis of glycerol with in-situ hydrogen generation over Ni catalysts supported on activated carbon: Effects of nickel loading and base addition 000151454 260__ $$c2025 000151454 5060_ $$aAccess copy available to the general public$$fUnrestricted 000151454 5203_ $$aThe present work studied the influences of nickel loading and KOH addition on the aqueous phase hydrogenolysis of glycerol over nickel supported on activated carbon (Ni/AC) catalysts prepared by the incipient wetness impregnation method and without external hydrogen addition in a continuous operation. It has been observed that the calcination stage of the catalytic precursor reduces nickel oxide to dispersed nickel metal crystallites, making catalyst activation with hydrogen unnecessary. This process predominantly yields liquid products, with low gas production under the studied conditions. Among the produced liquids, acetol and 1,2-propanediol are the major components. Furthermore, the addition of a base (KOH) is beneficial both in terms of significantly increasing glycerol conversion and the yield to liquids and also to improve selectivity towards 1,2-propanediol due to the participation of the basic route. The best catalytic activity was achieved using the catalyst with 10 wt% of Ni and added base with the highest glycerol conversion close to 40 % and selectivity to 1,2-propanediol greater than 70 %. 000151454 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T22-23R$$9info:eu-repo/grantAgreement/ES/MCINN/PID2020-114985RB-I00 000151454 540__ $$9info:eu-repo/semantics/embargoedAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/ 000151454 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion 000151454 700__ $$0(orcid)0000-0001-7115-9025$$aGarcía, L.$$uUniversidad de Zaragoza 000151454 700__ $$0(orcid)0000-0002-2924-3095$$aRuiz, J.$$uUniversidad de Zaragoza 000151454 700__ $$0(orcid)0000-0002-7179-3031$$aOliva, M.$$uUniversidad de Zaragoza 000151454 700__ $$0(orcid)0000-0002-5959-3168$$aArauzo, J.$$uUniversidad de Zaragoza 000151454 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química 000151454 7102_ $$15005$$2790$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Tecnologi. Medio Ambiente 000151454 773__ $$g196 (2025), 107744 [10 pp.]$$pBiomass bioenergy$$tBIOMASS & BIOENERGY$$x0961-9534 000151454 8564_ $$s3004179$$uhttps://zaguan.unizar.es/record/151454/files/texto_completo.pdf$$yPostprint$$zinfo:eu-repo/date/embargoEnd/2027-02-26 000151454 8564_ $$s1389228$$uhttps://zaguan.unizar.es/record/151454/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint$$zinfo:eu-repo/date/embargoEnd/2027-02-26 000151454 909CO $$ooai:zaguan.unizar.es:151454$$particulos$$pdriver 000151454 951__ $$a2025-03-13-08:43:50 000151454 980__ $$aARTICLE