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Upgrading of oils from biomass and waste: catalytic hydrodeoxygenation

Mai Attia, Sherif Farag and Jamal Chaouki

Article (2020)

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Abstract

The continuous demand for fossil fuels has directed significant attention to developing new fuel sources to replace nonrenewable fossil fuels. Biomass and waste are suitable resources to produce proper alternative fuels instead of nonrenewable fuels. Upgrading bio-oil produced from biomass and waste pyrolysis is essential to be used as an alternative to nonrenewable fuel. The high oxygen content in the biomass and waste pyrolysis oil creates several undesirable properties in the oil, such as low energy density, instability that leads to polymerization, high viscosity, and corrosion on contact surfaces during storage and transportation. Therefore, various upgrading techniques have been developed for bio-oil upgrading, and several are introduced herein, with a focus on the hydrodeoxygenation (HDO) technique. Different oxygenated compounds were collected in this review, and the main issue caused by the high oxygen contents is discussed. Different groups of catalysts that have been applied in the literature for the HDO are presented. The HDO of various lignin-derived oxygenates and carbohydrate-derived oxygenates from the literature is summarized, and their mechanisms are presented. The catalyst's deactivation and coke formation are discussed, and the techno-economic analysis of HDO is summarized. A promising technique for the HDO process using the microwave heating technique is proposed. A comparison between microwave heating versus conventional heating shows the benefits of applying the microwave heating technique. Finally, how the microwave can work to enhance the HDO process is presented.

Uncontrolled Keywords

oil upgrading; biomass; waste; hydrodeoxygenation

Subjects: 1800 Chemical engineering > 1800 Chemical engineering
1800 Chemical engineering > 1802 Biochemical engineering
1800 Chemical engineering > 1807 Combustion processes
Department: Department of Chemical Engineering
PolyPublie URL: https://publications.polymtl.ca/9373/
Journal Title: Catalysts (vol. 10, no. 12)
Publisher: MDPI
DOI: 10.3390/catal10121381
Official URL: https://doi.org/10.3390/catal10121381
Date Deposited: 07 Dec 2022 14:52
Last Modified: 27 Sep 2024 12:32
Cite in APA 7: Attia, M., Farag, S., & Chaouki, J. (2020). Upgrading of oils from biomass and waste: catalytic hydrodeoxygenation. Catalysts, 10(12), 1381 (28 pages). https://doi.org/10.3390/catal10121381

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