Biorefinery systems are basic systems for processing raw materials of any origin into energy carriers and can be an element of a closed-loop economy. In biorefinery systems, it is assumed that waste-free technologies will be used in the future, involving the simultaneous use of secondary technologies for processing the waste generated. Biorefineries should use waste biomass, the source of which should be the forestry, timber, and agricultural industries, as well as waste products of biological origin from the food industry. Energy from renewable energy sources or from the use of waste raw materials generated in other biorefinery processes should be used for processing processes in biorefinery systems. It can be assumed that it will also be possible to produce green hydrogen in future biorefinery systems.

By definition, biorefinery systems should fit into the circular economy. The aim of biorefinery processes is the comprehensive processing of raw materials of biological origin into energy carriers, biochemicals, biopolymers, and other value-added products. To achieve this goal, the following should be solved:

• Development of technology for composing and processing raw materials as a qualitatively stable raw material input for specific technological processes.
• Determining the energy demand for expected technological processes.
• Analysis of the possibilities of using post-process waste for energy purposes.
• Catalysis in biorefinery processes.
• LCA of biorefinery processes.
• Analysis of the possibility of producing biocrude oil as a substitute for crude oil.
• Possibilities of producing electrofuels in biorefinery systems.

We welcome Original Research, Review, Mini Review and Perspective articles on themes including, but not limited to:

• Individual biorefinery processes, e.g. methane fermentation, gasification, pyrolysis, co-pyrolysis, catalytic processes, synthesis gas fermentation, biomethane reforming, technologies for waste carbon dioxide management, technologies for obtaining green hydrogen.

• Analysis of biorefinery processes.

• Biorefineries dedicated, for example, to obtaining a specific type of product or group of products.

• Life cycle analysis of final products from biorefinery processes.

• Waste management in biorefinery processes.

• HTU and HDO processes in biorefinery systems.

• Possibilities of obtaining advanced biofuels in biorefinery systems.

• Enzymes as the ultimate tools for biorefinery systems.

• Biomass pretreatment.

• Biomass hydrolysis.

• Vision of development of biorefinery systems.

• The use of algae in biorefinery systems.

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Frontiers in Fuels

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