Biorefinery Design and Sustainability Assessment

Biorefineries represent integrated facilities that convert renewable biomass into a spectrum of energy carriers, chemicals and materials, mirroring the concept of a traditional petroleum refinery but founded on non-fossil feedstocks. Central to their design is the optimisation of feedstock logistics, unit operations and conversion pathways—ranging from biochemical processes such as fermentation and anaerobic digestion to thermochemical routes including pyrolysis, gasification and hydrothermal liquefaction. A sustainable biorefinery design balances technical feasibility, economic viability and environmental performance, often through a combined life cycle and techno-economic assessment framework. This integrated approach enables the evaluation of energy efficiency, greenhouse gas emissions, resource use and cost across the entire value chain, from feedstock cultivation or collection through product separation and waste management. Advances in modular and multi-feedstock concepts allow small-scale, decentralised operations that adapt to local biomass availability, thereby supporting rural development and circular bioeconomies. Emerging challenges include the depolymerisation of complex lignin structures, the valorisation of waste streams, and the alignment of policy incentives with sustainable practices. Through iterative design and assessment, researchers and engineers are forging pathways towards decarbonised process industries and the United Nations’ sustainable development goals.

Research from Nature Portfolio

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Biorefinery Design and Sustainability Assessment publication trend

The graph below shows the total number of articles in biorefinery design and sustainability assessment across all publications each year (not limited to Nature Index journals).

Technical terms

Biorefinery: A facility that processes biomass into multiple products and energy vectors through integrated conversion technologies.

Feedstock: The raw biological material (e.g. lignocellulosic residues, agricultural waste) used as input for conversion processes in a biorefinery.

Techno-Economic Analysis (TEA): A systematic evaluation of the economic performance and cost structure of a process or facility.

Life-Cycle Assessment (LCA): A methodological framework for assessing environmental impacts associated with all stages of a product’s life, from raw material extraction to disposal.

Circular Bioeconomy: An economic model where renewable biological resources are sustainably managed and converted into value-added products, with minimal waste and maximised resource efficiency.

References

1. Waste biorefinery towards a sustainable circular bioeconomy: a solution to global issues. Biotechnology for Biofuels and Bioproducts (2021).
2. Biorefineries: Achievements and challenges for a bio-based economy. Frontiers in Chemistry (2022).
3. Reflection on the research on and implementation of biorefinery systems – a systematic literature review with a focus on feedstock. Biofuels Bioproducts and Biorefining (2019).
4. Developing Process Designs for Biorefineries—Definitions, Categories, and Unit Operations. Energies (2020).
5. Integrated techno-economic and environmental assessment of biorefineries: review and future research directions. Sustainable Energy & Fuels (2023).
6. Integration of Waste to Bioenergy Conversion Systems: A Critical Review. Energies (2022).
7. Sustainability of Biorefineries: Challenges and Perspectives. Energies (2023).
8. Biorefinery and sustainability for the production of biofuels and value-added products: A trends analysis based on network and patent analysis. PLOS ONE (2023).