Sustainable biomass hydrodeoxygenation in biphasic systems

Wei, Hongyu; Wang, Zhiying; Li, Hao

doi:10.1039/d1gc03836b

Cited by 39 publications

(27 citation statements)

References 207 publications

(258 reference statements)

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“…Currently, the solvents commonly applied for biomass catalytic HDO are water, alcohol, and a composite. 83 To this end, the Ru/ Nb 2 O 5 -MC catalyst was synthesized by means of the impregnation method and applied to the HDO of phenol under different solvents. 84 The Ru/Nb 2 O 5 -MC catalyst achieved the full conversion of phenol and high selectivity of 80% for benzene in a biphasic catalytic process at optimal conditions of 250 °C and 2 bar H 2 .…”

Section: Arenes Over Noble Metal Catalystsmentioning

confidence: 99%

“…Solvent properties such as polarity, solubility, and hydrogen supply capacity not only affect the efficiency of the HDO reaction but also have a large impact on the product distribution. Currently, the solvents commonly applied for biomass catalytic HDO are water, alcohol, and a composite . To this end, the Ru/Nb 2 O 5 -MC catalyst was synthesized by means of the impregnation method and applied to the HDO of phenol under different solvents .…”

Section: The Catalytic Hdo Of Phenolics Into Arenes Over Noble Metal ...mentioning

confidence: 99%

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Toward Value-Added Arenes from Lignin-Derived Phenolic Compounds via Catalytic Hydrodeoxygenation

Lang

2022

ACS Sustainable Chem. Eng.

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Arenes are an important class of intermediates in the chemical industry that have been widely applied in pharmaceuticals, fuels, synthetic resins, and so on. Given the growing demand for arenes and the unsustainability of petroleum-based production pathways, hydrodeoxygenation (HDO) of lignin-derived phenolic compounds presents a promising strategy for translating lignin materials into value-added arenes. Whereas most HDO catalysts perform low selectivity in arenes due to the presence of competing processes that more readily saturate the aromatic rings, in this Perspective, we first focus on the latest advances in the sustainable production of arenes from the HDO of phenolic compounds. Furthermore, the newest achievements of different types of catalysts and their reaction mechanisms involved in the HDO processes are systematically classified and summarized. Lastly, the existing challenges, tentative suggestions for improvement, and future opportunities within this attractive field are given with the aim of providing new research ideas and stimulating inspiration for a wide range of scientists to drive toward a sustainable and carbon-neutral society where biomass resources play a major role in fuels and chemicals.

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Section: Arenes Over Noble Metal Catalystsmentioning

confidence: 99%

Section: The Catalytic Hdo Of Phenolics Into Arenes Over Noble Metal ...mentioning

confidence: 99%

Toward Value-Added Arenes from Lignin-Derived Phenolic Compounds via Catalytic Hydrodeoxygenation

Lang

2022

ACS Sustainable Chem. Eng.

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“…Numerous reports confirm and derive, for example, the increase of greenhouse gases in the atmosphere and its associated negative effect on nature and on living life from the usage of fossil fuels. It is stressed that further commitments and measurements in regard to developing alternative renewable fuels remain vital [1][2][3]. Today's commercially available bio-liquid fuels, such as biodiesel and bio-alcohols, are processed from established technologies and are attractive fossil-substituted fuels.…”

Section: Introductionmentioning

confidence: 99%

“…However, a general challenging aspect of using biomass as feedstock in comparison to fossil-derived hydrocarbons is its difference in composition. The major compositional difference relates to the extensively higher content of thermodynamic unstable and reactive oxygen-containing molecules in bio-oils derived from biomass compared to conventional oils [1,3,4,14,15]. Thus, bio-oils need to be stabilized before further utilization [1,2,4,6,14,15].…”

Section: Introductionmentioning

confidence: 99%

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Parametric Analysis and Optimization of Vanillin Hydrodeoxygenation Over a Sulfided Ni-Mo/δ-Al2O3 Catalyst Under Continuous-Flow Conditions

et al. 2022

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A fundamental understanding of the process parameters affecting the catalytic hydrodeoxygenation (HDO) of bio-oils is of significance for enabling further progression and improvement of industrial biofuel upgrading methods. Herein, a novel demonstration and evaluation of the effect of temperature, pressure, and weight hourly space velocity in the continuous HDO of vanillin to cresol over a Ni-Mo/δ-Al2O3 catalyst are presented. Response surface methodology was used as a statistical experimental design method, and the application of central composite design enabled the generation of a statistically significant simulation model and a true optimization parametric study. The distribution of Ni and Mo on δ-Al2O3 was confirmed using scanning electron microscopy with energy dispersive X-ray analysis (SEM-EDX). No gradients with EDX mapping could be identified, and the elemental analysis showed well-dispersion of the metals. The mesoporous character of the catalyst-support system was unraveled using N2 physisorption. Experiments were conducted within the parametric range of 250–350 °C, 3–9 bar, and 15–35 h−1. Both temperature and pressure were found to have statistically significant linear and quadratic effects on the selectivity for cresol. The parametric interaction of temperature with pressure and space velocity also had a significant effect on the resulting response. The optimal temperature range becomes more critical at lower space velocities. Optimal selectivity for cresol was established at 314 °C, 5 bar, and 35 h−1. The fitting quality of the generated regression model was statistically confirmed and experimentally validated to describe the specified HDO process within the 95% two-sided confidence interval.

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Unlocking the Potential of Liquid Multiphase Systems for Metal‐Catalysed Reactions

Bersani,

Perosa,

Rodríguez‐Padrón

et al. 2024

ChemCatChem

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Abstract. Liquid multiphase systems (MPS) have gained attention in recent years due to their versatility for catalytic processes. This review article presents a critical discussion of the most recent advances on the utilization of MPS in both homogeneous and heterogeneous metal‐catalyzed reactions. Pros and cons of some exemplificative multiphase configurations are highlighted and compared to conventional methods in single liquid solvents. The application of MPS for the implementation of strategies for the upgrading of biobased molecules is also examined with emphasis on process intensification and sustainability including the catalyst/products separation and the in‐situ recycle and reuse of the metal catalysts. These aspects are analyzed with a view on expanding MPS applications and whenever possible, explore scaleup opportunities.

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Sustainable biomass hydrodeoxygenation in biphasic systems

Abstract: Various advantages of sustainable biomass hydrodeoxygenation in water-oil biphasic systems.

Cited by 39 publications

References 207 publications

Toward Value-Added Arenes from Lignin-Derived Phenolic Compounds via Catalytic Hydrodeoxygenation

Toward Value-Added Arenes from Lignin-Derived Phenolic Compounds via Catalytic Hydrodeoxygenation

Parametric Analysis and Optimization of Vanillin Hydrodeoxygenation Over a Sulfided Ni-Mo/δ-Al2O3 Catalyst Under Continuous-Flow Conditions

Unlocking the Potential of Liquid Multiphase Systems for Metal‐Catalysed Reactions

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