Bioforcetech recently presented its progress on a new research project, “Almond Shell to BiocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More to Rubber Additives,” at the BioCirCA 2025 conference in California, United States. Supported by a BEAM Circular Business Innovation Grant, the project investigates the use of biochar derived from almond shells as an additive for natural rubber compounds. This initiative represents a significant step in valorizing agricultural waste streams for industrial applications.

The project addresses two distinct industry challenges. First is the management of abundant agricultural residues, specifically almond shells in California. The second, and more complex, challenge is the environmental impact of synthetic materials used in farming. Conventional rubber attachments on agricultural harvesting equipment degrade under harsh conditions, often leaving synthetic, soil-harming residues behind, contributing to pollution and reliance on fossil-fuel-based products.

The proposed solution hinges on precision pyrolysisPyrolysis is a thermochemical process that converts waste biomass into bio-char, bio-oil, and pyro-gas. It offers significant advantages in waste valorization, turning low-value materials into economically valuable resources. Its versatility allows for tailored products based on operational conditions, presenting itself as a cost-effective and efficient More. Bioforcetech is utilizing its BFT Sigma pyrolysis unit to process almond shells into ‘designer biochar’ at precise, consistent times and temperatures. This process allows for the creation of biochar with specific, validated traits. In partnership with USDA ARS WRRF researchers, these specialized biochars will then be compounded into natural rubbers to test their performance-enhancing characteristics.

The project’s ultimate goal is to manufacture rubber-harvesting attachments for agricultural equipment using these new biochar-infused natural rubber compounds. The intended outcome is twofold: to improve the performance of the rubber and to create a product that enhances the soil upon degradation. As these parts wear down during use, the biochar component will be released, amending the soil rather than contaminating it.

This project seeks to provide a model for the biochar industry on creating closed-loop, circular economy solutions. It underscores the critical importance of pyrolysis precision in developing biochar for specific material applications beyond soil amendmentA soil amendment is any material added to the soil to enhance its physical or chemical properties, improving its suitability for plant growth. Biochar is considered a soil amendment as it can improve soil structure, water retention, nutrient availability, and microbial activity.   More. For industry operators, it highlights the potential of partnerships, like this one with the USDA, to validate new applications and transform waste streams into scalable, carbon-negative materials that solve multiple environmental problems simultaneously.