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TitleAdvancing the application of bio-oils by co-processing with petroleum intermediates: A review
AuthorHan, X; Wang, H; Zeng, YORCID logo; Liu, J
SourceEnergy Conversion and Management 100069, 2020 p. 1-10, Open Access logo Open Access
Alt SeriesNatural Resources Canada, Contribution Series 20200652
PublisherElsevier Ltd.
Mediapaper; on-line; digital
File formatpdf; html
SubjectsScience and Technology; fossil fuels; oil; petroleum; fluid mechanics; economic analyses
Illustrationsdiagrams; tables
Released2020 12 30
AbstractCrude bio-oils, as sustainable and renewable energy sources generated from thermochemical conversion of forest, agriculture, waste and algae biomass feedstocks, have attracted particular attention to partially and even completely replace the fossil fuels over the past decades. However, due to their undesirable qualities such as high oxygen content, thermal instability, and high corrosivity, further upgrading is required for the direct application of bio-oils for petrol engines or thermal power plants. Various upgrading pathways, including emulsification, hydrotreating, supercritical fluid treatment, and co-processing are being investigated by different international research groups to produce marketable drop-in renewable transportation biofuels. Among them, co-processing bio-oils with petroleum streams in existing refineries is recognized as a more promising solution compared to other conventional upgrading methods because of less capital investment and higher fuel productivity. This work reviewed the up-to-date research activities in bio-oil co-processing including process scale-up, focusing more on the most recent work about pyrolysis oils co-processing in the fluid catalytic cracking (FCC) unit and its industrial implementation. The significant knowledge gaps in the co-processing are also outlined for future investigations.
Summary(Plain Language Summary, not published)
This article discusses the potential of crude bio-oils as renewable energy sources derived from various biomass materials. These bio-oils are considered a sustainable alternative to fossil fuels, but they have some drawbacks, like high oxygen content, thermal instability, and corrosiveness. To make them suitable for use in engines and power plants, researchers are exploring different ways to upgrade these bio-oils.
The article focuses on co-processing, a method that involves blending bio-oils with petroleum products in existing refineries. This approach is seen as a promising solution because it requires less investment and can yield higher fuel output compared to other upgrading techniques.
The researchers reviewed the latest developments in bio-oil co-processing, particularly in the context of fluid catalytic cracking (FCC) units, and discussed efforts to scale up these processes for industrial use.
Understanding how to effectively co-process bio-oils with traditional petroleum products is crucial for developing renewable transportation biofuels and reducing our reliance on fossil fuels. This research can have a significant impact on the transition to more sustainable and environmentally friendly energy sources.

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