loading page

Advances in Catalyst Design and Reaction Strategies for Carbon-Neutral Conversion of Bioglycerol to Propylene, 1,2-Propanediol, and Hydrogen
  • M. El Doukkali,
  • F. Dumeignil
M. El Doukkali
Universite Sultan Moulay Slimane Faculte Polydisciplinaire de Beni Mellal

Corresponding Author:[email protected]

Author Profile
F. Dumeignil
Unite de Catalyse et Chimie du Solide
Author Profile

Abstract

The inevitable depletion of fossil resources and the anthropogenic climate change arising from their excessive utilization make necessary the search for renewable feedstocks and developing eco-friendly technologies for producing greener energy, fuels and chemicals. Through the present mini-review, we intend to share with the research community our relevant contributions to advance the production of carbon-neutral propylene, 1,2-propanediol and biohydrogen through thermo-chemical conversion of biomass-derived glycerol, aided by diverse heterogeneous catalysts. The reported achievements, which have been recently recognized by the “ACI/NBB Glycerine Innovation Award”, are organized and discussed in four marked sections. Thus, after having highlighted the possible economic and environmental benefits of producing such value-added commodities from bioglycerol excess, we present different re-designing actions to improve the properties of transition metals-based (e.g. Pt, Pd, Ni, Cu or Mo) supported on γ-Al2O3 or SiO2 for boosting glycerol transformation via: i) steam reforming, ii) aqueous-phase reforming, iii) hydrogenolysis and iv) hydrodeoxygenation reactions. Then, the catalytic role of metallic, acid and/or redox sites in these reactions is discussed together with the identification of the main factors affecting their stability under H2O-rich conditions. The effect of reaction configurations and operating conditions in the conversion of glycerol to the target product are also assessed. The gained knowledge on re-modulating catalyst properties and optimizing reaction strategies, including mechanisms and process operability, is expected to provide a comprehensive guideline for continuously improving the efficiency of bioglycerol upgrading routes.
Submitted to Journal of the American Oil Chemists' Society
06 Jun 2024Submission Checks Completed
06 Jun 2024Assigned to Editor
06 Jun 2024Review(s) Completed, Editorial Evaluation Pending
02 Aug 2024Editorial Decision: Revise Major
13 Sep 20241st Revision Received
13 Sep 2024Submission Checks Completed
13 Sep 2024Assigned to Editor
13 Sep 2024Review(s) Completed, Editorial Evaluation Pending
30 Sep 2024Editorial Decision: Accept