Issue 8, 2023

Aqueous phase hydrogenolysis of glycerol with in situ generated hydrogen over Ni/Al3Fe1 catalyst: effect of the calcination temperature

Abstract

The present work studied the influence of the calcination temperature on the aqueous phase hydrogenolysis of glycerol with in situ generated hydrogen over a Ni/Al3Fe1 catalyst. The Ni/Al3Fe1 catalyst was synthesized by the co-precipitation method at 28 mol% of Ni (Ni/(Ni + Al + Fe)) and a molar ratio of Al/Fe of 3/1. The prepared catalyst was calcined at different temperatures (500–750 °C). The obtained samples were tested for the aqueous phase hydrogenolysis (APH) of glycerol and characterized by several analytical techniques (ICP-OES, H2-TPR, XRD, N2-physisorption, NH3-TPD, STEM, FESEM, and TGA). The catalyst calcined at 625 °C was selected as the best sample due to its high acidity, metal dispersion, and catalytic activity; 1,2-propanediol was the highest carbon selectivity product. In addition, it experienced lower metal leaching than the catalyst calcined at 500 °C.

Graphical abstract: Aqueous phase hydrogenolysis of glycerol with in situ generated hydrogen over Ni/Al3Fe1 catalyst: effect of the calcination temperature

Article information

Article type
Paper
Submitted
12 Dec 2022
Accepted
06 Feb 2023
First published
14 Feb 2023
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2023,13, 5483-5495

Aqueous phase hydrogenolysis of glycerol with in situ generated hydrogen over Ni/Al3Fe1 catalyst: effect of the calcination temperature

R. Raso, A. Lete, L. García, J. Ruiz, M. Oliva and J. Arauzo, RSC Adv., 2023, 13, 5483 DOI: 10.1039/D2RA07929A

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