Cited by 48Thermochemical Biomass Conversion ProcessesCatalysis and Hydrodesulfurization StudiesElectrocatalysts for Energy Conversion

Upgrading of Bio-Oil Model Compounds and Bio-Crude into Biofuel by Electrocatalysis: A Review

Chen, Guanyi, Liang, Lan, Li, Ning, Lu, Xukai, Yan, Beibei, Cheng, Zhanjun·2021·ChemSusChem

Abstract

Limited availability of fossil energy and serious environmental pollution have caused the emergence of bio-oil, which can serve as an alternative and promising green energy source. However, bio-oil generated from the rapid pyrolysis of biomass cannot be utilized immediately owing to its corrosivity, instability, and low heating value. Herein, the electrocatalytic hydrogenation (ECH) process towards bio-oil upgrading is reviewed. Specifically, the ECH integrates the advantages of mild operating conditions, no petrochemically derived hydrogen and good controllability. The influence of different factors on the conversion of bio-oil components and product selectivity in the ECH process are presented comprehensively. In addition, various reaction mechanisms are discussed in the designed ECH systems. Finally, some challenges need to be further overcome for real bio-oil reduction in the ECH process: exploration of efficient multifunctional electrocatalysts for specific bio-oil components and determination of the dominant steps in the complicated reaction path network.

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Crossref · 10.1002/cssc.202002063

Cites

109 of 109 references verified0 citation errors · 0 not checkable

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  • Both raw syngas and raw bio-oil require upgrading.

    “However, both raw products require upgrading [141,142].”
  • Biofuels often exhibit higher oxygen concentrations compared to traditional petroleum feedstocks, with typical values, particularly in less refined forms like py-oil, potentially ranging from 20 to 60 wt.%, though precise ranges vary significantly with fuel type and processing.

    “Chemically, biofuels often exhibit higher oxygen concentrations compared to traditional petroleum feedstocks, with typical values, particularly in less refined forms like py-oil, potentially ranging from 20 to 60 wt.%, though precise ranges vary significantly with fuel type and processing [141,142].”

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Authors
Chen, G., Liang, L., Li, N., Lu, X., Yan, B., & Cheng, Z.
Affiliations
Tianjin University (CN)
Corresponding author
Li, Ning
Venue
ChemSusChem
Publisher
Wiley
Published
2021-01-05
Volume
14
Issue
4
Pages
1037-1052
ISSN
  • 1864-5631 (ISSN-L)
  • 1864-564X
OpenAlex
W3113674179
Cited by
48
References
109
Citations by year
2026: 10 · 2025: 11 · 2024: 9 · 2023: 9 · 2022: 4 · 2021: 5
FWCI
0.38
Type
journal article
Language
en
Open access
closed
Locations
  • ChemSusChem (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (51676138, 51878557)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
  • Physical Sciences › Engineering › Mechanical Engineering › Catalysis and Hydrodesulfurization Studies
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
Keywords
bio-oil upgrading, electrocatalytic hydrogenation, biocrude, electrocatalysts, product selectivity, reaction mechanism, biofuel production

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