- Carbon Fixation and Biomass Growth: Plants and algae naturally capture CO2 from the atmosphere through photosynthesis and convert it into organic matter, effectively storing carbon within their structure. This natural process forms the foundation for utilizing bio-based materials for carbon sequestration.
- Material Processing and Carbon Storage: Biomass can be processed into various materials that store carbon:
- Wood Products: Durable wood products, like furniture, construction lumber, and engineered wood, store carbon for the lifespan of the product.
- Biochar: Biomass is converted into a stable charcoal-like material called biochar through a process called pyrolysis, which involves heating biomass in the absence of oxygen. Biochar can be added to soil, where it stores carbon for centuries.
- Bio-Based Polymers: Biopolymers, like cellulose, lignin, and chitin, inherently contain carbon. Utilizing these biopolymers in products effectively sequesters carbon for the lifespan of the product.
- Carbon Capture and Utilization (CCU): Emerging technologies combine biomass conversion with carbon capture technologies, capturing CO2 emissions from industrial processes and utilizing it to create bio-based materials, effectively closing the carbon loop.
TRL : 5-8 (depending on the specific material and application)