Aqueous phase hydrogenolysis of glycerol over Ni/Al-Fe catalysts without external hydrogen addition

Raso, R. ; García, L. (Universidad de Zaragoza) ; Ruiz, J. (Universidad de Zaragoza) ; Oliva, M. (Universidad de Zaragoza) ; Arauzo, J. (Universidad de Zaragoza)

Resumen: 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%).

Idioma: Inglés

DOI: 10.1016/j.apcatb.2020.119598

Año: 2021

Publicado en: APPLIED CATALYSIS B-ENVIRONMENTAL 283 (2021), 119598 [pp. 1-14]
ISSN: 0926-3373

Factor impacto JCR: 24.319 (2021)

Categ. JCR: CHEMISTRY, PHYSICAL rank: 6 / 165 = 0.036 (2021) - Q1 - T1
Categ. JCR: ENGINEERING, ENVIRONMENTAL rank: 1 / 54 = 0.019 (2021) - Q1 - T1
Categ. JCR: ENGINEERING, CHEMICAL rank: 3 / 142 = 0.021 (2021) - Q1 - T1

Factor impacto CITESCORE: 34.0 - Chemical Engineering (Q1) - Environmental Science (Q1)

Factor impacto SCIMAGO: 4.466 - Catalysis (Q1) - Environmental Science (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/AEI-FEDER/CTQ2017-86893-R
Financiación: info:eu-repo/grantAgreement/ES/DGA-FEDER/T22-20R

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)
Área (Departamento): Área Tecnologi. Medio Ambiente (Dpto. Ing.Quím.Tecnol.Med.Amb.)