A review of bio-oil upgrading by catalytic hydrotreatment : Advances, challenges, and prospects
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Article number | 111438 |
Journal / Publication | Molecular Catalysis |
Volume | 504 |
Online published | 15 Feb 2021 |
Publication status | Published - Mar 2021 |
Externally published | Yes |
Link(s)
Abstract
Fast pyrolysis and hydrothermal liquefaction (HTL) have been regarded as the most promising thermochemical conversion technologies for liquid bio-fuels production. However, the poor quality of generated crude bio-oils, such as high O and water contents, low thermal stability, and high corrosivity, limits their direct applications as the alternative transportation fuels. Thus, a number of upgrading techniques mainly including chemical and physical methods have been developed. Among them, hydrotreatment like hydrodeoxygenation (HDO) as a well-established technology at petroleum refinery plants has been widely adopted for upgrading of the crude oil obtained from pyrolysis or HTL. In this review, the effects of various upgrading reaction conditions (temperature, H2 pressure, solvents, residence time, and catalyst) of HDO treatment of real bio-oil and its mode compounds are thoroughly reviewed. In which, the underlying mechanisms for bio-oil HDO are elucidated with a wide range of its model compounds (lignin-derived oxygenates and carbohydrates-derived oxygenates) and the interaction between these model compounds. Moreover, a discussion regarding the HDO of real bio-oil from pyrolysis and HTL is provided, and the technical/operating problems for the catalytic HDO and the possible solutions are presented. Finally, the important knowledge gaps and future directions are addressed for further investigations. © 2021 Elsevier B.V.
Research Area(s)
- Biomass, Crude bio-oil, Fast pyrolysis, Hydrodeoxygenation (HDO), Hydrothermal liquefaction
Citation Format(s)
A review of bio-oil upgrading by catalytic hydrotreatment: Advances, challenges, and prospects. / Zhang, Mingyuan; Hu, Yulin; Wang, Haoyu et al.
In: Molecular Catalysis, Vol. 504, 111438, 03.2021.
In: Molecular Catalysis, Vol. 504, 111438, 03.2021.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review