New insights in single-step hydrodeoxygenation of glycerol to propylene by coupling rational catalyst design with systematic analysis

Doukkali, M. El; Dumeignil, Franck; Paul, Sébastien

doi:10.1016/j.apcatb.2022.122280

Cited by 10 publications

(60 citation statements)

References 71 publications

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“…There is still no commercialized GTP catalyst that can convert crude bioglycerol under hydrothermal conditions to produce a high propylene yield without excessive H 2 consumption. Thus, cutting-edge preparation and functionalization strategies are being explored to improve the catalyst properties for the GTP reaction in both a homo- and heterogeneous catalysis medium. ,,− ,− These efforts are focusing on controlling the nature and population of active sites for efficiently eliminating C–O and controlling C–C hydrogenation.…”

Section: The State-of-the-art Of Gtp Catalysismentioning

confidence: 99%

“…The species studied for GTP reactions are noble metals (e.g., Ir, ,,, Ru, ,,,,, Pt, ,,,,,, Pd, ,,,, Rh, , and Re,), functionalized systems based on non-noble transition metals (e.g., MoO x , ,− ,,− β-Mo 2 C, , η-MoC, NiMoS x , WO x , ,,, Ni, ,,,,,, Cr, ,,,, Fe, ,,,,,, Zn, ,,, V, ,,, Nb, ,, Cu, ,,,,,,,, ), nonmetals (e.g., Li, Ca, Mg, HBO 3 , I, P, , Br, and Carbon, ,…”

Section: The State-of-the-art Of Gtp Catalysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Indeed, GTP routes is undergoing advances in research in terms of both fundamental catalysis and process design ,,− by exploring different transformation strategies from both heterogeneous and homogeneous catalysis. GTP routes are being investigated through high-temperature processes, ,,,,,, multisteps reactions, including triple-stage reactors, , separate double reactors, ,, tandem or dual-bed catalysts, ,,, and single-step conversion strategies. ,,,− ,,,,− These studies conclude that in the future GTP catalysis may become a sustainable bridging route between the biorefinery and polyolefin industries. Nonetheless, integrating GTP routes in a unified network, from biomass to sustainable propylene, raises intrinsic challenges, such as the nature of the most efficient GTP configurations, control of the interoperability of multisteps and/or combined bed reactors, influenced by contact states between catalyst beds, operating conditions, reaction mechanisms, and so forth.…”

Section: Introductionmentioning

confidence: 99%

“…We have recently published new insights to fill some of the gaps in GTP catalysis . Indeed, despite the important advances made in this field over the past decade, no attempt has been made accordingly to comprehensively examine GTP catalysis in a single review.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Bioglycerol-to-Propylene Routes: From Fundamental Catalysis to Process Design and Marketing

El Doukkali,

Bahlouri,

Paul

et al. 2023

ACS Catal.

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Bioglycerol-to-propylene (GTP) routes are undergoing major developments in terms of both fundamental catalysis and process design on the way to becoming a connecting bridge between the biorefinery and polyolefin industries. This review starts introducing some GTP routes-related market potentialities and continues discussing significant mechanistic, kinetic, and engineering developments in GTP catalysis involving high-temperature, multistep, tandem, and single-step hydrodeoxygenation strategies. It highlights the main advances made in the design of efficient catalysts and in the elucidation of their active sites, thereby shedding light on state-of-the art preparation, functionalization, and characterization methods. The GTP mechanisms are also assessed over versatile metallic, acid, and bifunctional catalysts' surfaces to discover which C−O bond is removed and which C=C bond is formed. GTP configurations are discussed as a function of the thermodynamic and operating conditions affecting catalysts' reactivity, selectivity, and stability. They are also compared using various qualitative and quantitative criteria such as process configuration, severity of operating conditions, energy consumption, sustainability assessment, and propylene production. We thus intend to provide a broad overview of GTP catalysis for inducing new opportunities in the biorefinery-to-olefins field.

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Section: The State-of-the-art Of Gtp Catalysismentioning

confidence: 99%

Section: The State-of-the-art Of Gtp Catalysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Bioglycerol-to-Propylene Routes: From Fundamental Catalysis to Process Design and Marketing

El Doukkali,

Bahlouri,

Paul

et al. 2023

ACS Catal.

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N‐Heterocyclic Carbene–Based Catalysts for Glycerol Valorisation: Current State and Perspectives

Cárdenas‐Acero,

Blanco,

Baquero

2024

Applied Organom Chemis

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N‐Heterocyclic carbenes (NHCs) are molecules with exceptional catalytic properties in a wide range of reactions. Recently, there has been a growing interest in using them as catalysts for biomass conversion. In this review, we examine the current state of glycerol valorisation (GV) using several catalytic systems, including metallic complexes bearing NHCs as ligands, polymeric building blocks and organocatalysts. The study covers literature published in the last 15 years, detailing the catalyst scope, reaction conditions and products of GV. This analysis emphasises the importance of varying the steric and electronic properties of NHCs within the reviewed catalytic systems. Furthermore, a critical evaluation of the proposed mechanistic pathways complements these results. A comprehensive understanding of the challenges of using such catalytic systems will emerge by compiling literature on the use of NHCs for the studied reactions. Additionally, this will promote new opportunities for further research in both academic and industrial fields.

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Advances in catalyst design and reaction strategies for carbon‐neutral conversion of bioglycerol to propylene, 1,2‐propanediol, and hydrogen

El Doukkali,

Dumeignil

2024

J Americ Oil Chem Soc

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The inevitable depletion of fossil resources and the resulting anthropogenic climate change require a shift towards renewable feedstocks and eco‐friendly technologies for greener energy, fuel, and chemicals production. This mini‐review highlights our relevant research contributions to advance the production of carbon‐neutral propylene, 1,2‐propanediol and biohydrogen through thermo‐chemical conversion of biomass‐derived glycerol, using various heterogeneous catalysts. These achievements, recently recognized by the “ACI/NBB Glycerine Innovation Award,” are organized into shared sections: (i) economic and environmental benefits of utilizing surplus bioglycerol, as feedstock, (ii) strategies to improve the properties of transition metals‐based catalysts (e.g., Pt, Pd, Ni, Cu or Mo supported on γ‐Al2O3 or SiO2) for glycerol conversion via: steam reforming, aqueous‐phase reforming, hydrogenolysis, and hydrodeoxygenation reactions, (iii) discussion on the catalytic roles of metallic, acidic and/or redox sites, and keys factors affecting catalyst stability and selectivity in these reactions operated under H2O‐rich conditions, and (iv) assessment of reaction configurations and operating conditions for improved glycerol conversion into the target product, H2 utilization efficiency and CO2 emissions. The insights aim to guide the continuous improvement of bioglycerol upgrading processes.

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New insights in single-step hydrodeoxygenation of glycerol to propylene by coupling rational catalyst design with systematic analysis

Cited by 10 publications

References 71 publications

Bioglycerol-to-Propylene Routes: From Fundamental Catalysis to Process Design and Marketing

Bioglycerol-to-Propylene Routes: From Fundamental Catalysis to Process Design and Marketing

N‐Heterocyclic Carbene–Based Catalysts for Glycerol Valorisation: Current State and Perspectives

Advances in catalyst design and reaction strategies for carbon‐neutral conversion of bioglycerol to propylene, 1,2‐propanediol, and hydrogen

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