Renewable and Sustainable Biorefinery: A Patent Review

Area of Science:

• Biotechnology and sustainable energy production.

Background:

• Biorefineries utilize renewable biomass (lignocellulose) for diverse products, including biofuels like ethanol.
• First-generation (1G) to fourth-generation (4G) ethanol production methods offer alternatives to polluting fossil fuels.
• The global energy transition necessitates sustainable fuel sources due to climate change and oil scarcity.

Purpose of the Study:

• To investigate patent registrations for renewable and sustainable biorefinery fuel production.
• Focus on patents related to cellulosic ethanol filed on Google Patents and Espacenet platforms.

Main Methods:

• Limited analysis to patents for cellulosic ethanol production from 2019-2023.
• Selected 30 patents across agriculture, environment, and bioprocesses/bioengineering.
• Reviewed titles, summaries, and full documents for relevance.

Main Results:

• China dominates patent applications for renewable cellulosic ethanol.
• Primary innovation strategies include agricultural waste reuse and biomass pre-treatment.
• Focus on waste valorization within biorefinery processes.

Conclusions:

• Renewable biorefinery fuels are crucial for the global energy transition.
• Patent analysis reveals technological advancements and economic/environmental challenges.
• Integrating patent insights can accelerate biorefinery efficiency and innovation.