Biodiesel Washing

SRS uses a resin-based biodiesel washing and polishing system for various applications. This system employs resin beds in the final stage of production to remove impurities like free glycerol, soaps, waxes, moisture, and salts from methanol-stripped biodiesel. The process does not increase the biodiesel’s acid number, maintaining fuel quality.

The Hydrogen Bonding Adsorber Resins are reusable, making this system cost-effective. Unlike traditional water wash or single-use filtration systems, the resins can be used repeatedly, saving money and resources. The resins are easy to maintain and regenerate. They have a lifespan of approximately five years, depending on the separation process of biodiesel and glycerin. The resin step is designed to polish and remove impurities but is not a replacement for the glycerin/biodiesel separation process.

SRS employs a lead-lag two-column system for resin regeneration. This design ensures the plant operates continuously with minimal downtime. One column regenerate while the other remains in operation.

The resin regeneration process uses methanol to clean the resins. This simple process ensures consistent performance and high-quality biodiesel. The two-column configuration allows for effective and efficient production while maintaining the purity of the final product.

This resin-based washing and polishing system offers biodiesel producers a reliable, efficient, and cost-effective solution. It helps maintain high-quality biodiesel while reducing costs and environmental impact.

Photos of resin beds at biodiesel plant in Moberly, Missouri