130310 20240209144725.0 doi 10.1016/j.apcatb.2020.119598 sideral 120458 ART-2021-120458 eng Raso, R. (orcid)0000-0001-9626-3726 Aqueous phase hydrogenolysis of glycerol over Ni/Al-Fe catalysts without external hydrogen addition 2021 Access copy available to the general public Unrestricted The present work studied the aqueous phase hydrogenolysis (APH) of glycerol (a by-product of biodiesel manufacturing) without external hydrogen addition to produce value-added products. A series of catalysts based on 28 molar % of Ni were prepared through co-precipitation by changing the Al/Fe molar ratio. The calcined and used catalysts were characterized by several techniques (ICP-OES, N2-physisorption, XRD, H2-TPR, NH3-TPD, FESEM and STEM). This work examines the effects of the molar ratio of Al/Fe on the physicochemical characteristics of Ni/Al-Fe catalysts and during the APH of glycerol. All the catalysts showed low carbon yields to gases and high carbon yields to liquid products, mainly 1, 2-propanediol, acetol and ethylene glycol. Ni/Al3Fe1 catalyst gave the best performance in the APH of glycerol: the highest glycerol conversion (42.31 %), carbon yield to gases (6.57 %) and carbon yield to liquids (30.45%). 1, 2-propanediol was the liquid product with the highest carbon selectivity (70.89%). info:eu-repo/grantAgreement/ES/AEI-FEDER/CTQ2017-86893-R info:eu-repo/grantAgreement/ES/DGA-FEDER/T22-20R info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 24.319 2021 CHEMISTRY, PHYSICAL 6 / 165 = 0.036 2021 Q1 T1 ENGINEERING, ENVIRONMENTAL 1 / 54 = 0.019 2021 Q1 T1 ENGINEERING, CHEMICAL 3 / 142 = 0.021 2021 Q1 T1 4.466 2021 Catalysis 2021 Q1 Environmental Science (miscellaneous) 2021 Q1 34.0 2021 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion García, L. Universidad de Zaragoza (orcid)0000-0001-7115-9025 Ruiz, J. Universidad de Zaragoza (orcid)0000-0002-2924-3095 Oliva, M. Universidad de Zaragoza (orcid)0000-0002-7179-3031 Arauzo, J. Universidad de Zaragoza (orcid)0000-0002-5959-3168 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 5005 790 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Tecnologi. Medio Ambiente 283 (2021), 119598 [pp. 1-14] Appl. catal., B Environ. APPLIED CATALYSIS B-ENVIRONMENTAL 0926-3373 2222607 http://zaguan.unizar.es/record/130310/files/texto_completo.pdf Postprint 1238325 http://zaguan.unizar.es/record/130310/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:130310 articulos driver 2024-02-09-14:45:08 ARTICLE