Bio-oils Hydrodeoxygenation: Adsorption of Phenolic Molecules on Oxidic Catalyst Supports

Попов, А. Г.; Kondratieva, Elena; Goupil, Jean‐Michel; Mariey, Laurence; Bazin, Philippe; Gilson, Jean‐Pierre; Travert, Arnaud; Maugé, Françoise

doi:10.1021/jp101949j

Cited by 205 publications

(214 citation statements)

References 35 publications

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“…Unsaturated oxygenates in bio-oil, especially phenols and furans, are regarded as the predominant coke precursors since they can strongly interact with the catalytic surface [114]. Moreover, it has been reported that double-oxygen compounds were much more prone to coke formation than single-oxygen compounds [115]. The HDO of anisole and guaiacol conducted by González-Borja and Resasco also suggested that more severe catalyst deactivation was observed with guaiacol relative to anisole [88].…”

Section: Catalyst Deactivationmentioning

confidence: 99%

An Overview on Catalytic Hydrodeoxygenation of Pyrolysis Oil and Its Model Compounds

et al. 2017

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Abstract:Pyrolysis is considered the most promising way to convert biomass to fuels. Upgrading biomass pyrolysis oil is essential to produce high quality hydrocarbon fuels. Upgrading technologies have been developed for decades, and this review focuses on the hydrodeoxygenation (HDO). In order to declare the need for upgrading, properties of pyrolysis oil are firstly analyzed, and potential analysis methods including some novel methods are proposed. The high oxygen content of bio-oil leads to its undesirable properties, such as chemical instability and a strong tendency to re-polymerize. Acidity, low heating value, high viscosity and water content are not conductive to making bio-oils useful as fuels. Therefore, fast pyrolysis oils should be refined before producing deoxygenated products. After the analysis of pyrolysis oil, the HDO process is reviewed in detail. The HDO of model compounds including phenolics monomers, dimers, furans, carboxylic acids and carbohydrates is summarized to obtain sufficient information in understanding HDO reaction networks and mechanisms. Meanwhile, investigations of model compounds also make sense for screening and designing HDO catalysts. Then, we review the HDO of actual pyrolysis oil with different methods including two-stage treatment, co-feeding solvents and in-situ hydrogenation. The relative merits of each method are also expounded. Finally, HDO catalysts are reviewed in order of time. After the summarization of petroleum derived sulfured catalysts and noble metal catalysts, transitional metal carbide, nitride and phosphide materials are summarized as the new trend for their low cost and high stability. After major progress is reviewed, main problems are summarized and possible solutions are raised.

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Section: Catalyst Deactivationmentioning

confidence: 99%

An Overview on Catalytic Hydrodeoxygenation of Pyrolysis Oil and Its Model Compounds

et al. 2017

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“…Alumina acidic support was deactivated faster than inert supports such as SiO 2 due to its relatively high acidity and strong interaction with the coke precursors [117,148]. A high density of Brønsted acid sites resulted in condensation of precursors adsorbed on adjacent sites and faster coke formation [149].…”

Section: Catalyst Deactivation In Bio-oil Hdomentioning

confidence: 99%

Application, Deactivation, and Regeneration of Heterogeneous Catalysts in Bio-Oil Upgrading

et al. 2016

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Abstract:The massive consumption of fossil fuels and associated environmental issues are leading to an increased interest in alternative resources such as biofuels. The renewable biofuels can be upgraded from bio-oils that are derived from biomass pyrolysis. Catalytic cracking and hydrodeoxygenation (HDO) are two of the most promising bio-oil upgrading processes for biofuel production. Heterogeneous catalysts are essential for upgrading bio-oil into hydrocarbon biofuel. Although advances have been achieved, the deactivation and regeneration of catalysts still remains a challenge. This review focuses on the current progress and challenges of heterogeneous catalyst application, deactivation, and regeneration. The technologies of catalysts deactivation, reduction, and regeneration for improving catalyst activity and stability are discussed. Some suggestions for future research including catalyst mechanism, catalyst development, process integration, and biomass modification for the production of hydrocarbon biofuels are provided.

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“…For the sulfided NiMo, HDO proceeds through a hydrolysis route, while for reduced NiMo catalyst, hydrogenation of aromatic ring is followed by heteroatom removals. Unauthenticated Download Date | 5/11/18 9:57 PM [70,136]. Poor tolerance to water is another challenge to use Al 2 O 3 -based supports.…”

Section: Reduced Metal Oxide Bronzesmentioning

confidence: 99%

Hydrodeoxygenation of model compounds and catalytic systems for pyrolysis bio-oils upgrading

Wang

2012

Catalysis for Sustainable Energy

112

146

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Bio-oils Hydrodeoxygenation: Adsorption of Phenolic Molecules on Oxidic Catalyst Supports

Cited by 205 publications

References 35 publications

An Overview on Catalytic Hydrodeoxygenation of Pyrolysis Oil and Its Model Compounds

An Overview on Catalytic Hydrodeoxygenation of Pyrolysis Oil and Its Model Compounds

Application, Deactivation, and Regeneration of Heterogeneous Catalysts in Bio-Oil Upgrading

Hydrodeoxygenation of model compounds and catalytic systems for pyrolysis bio-oils upgrading

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