Nicholls State University Researchers Develop Cost-Effective Biodiesel from Algae and Oyster Shells

Researchers from Nicholls State University in Louisiana have developed a method for producing biodiesel using algae and oyster shells. This approach addresses high costs and environmental concerns of traditional biodiesel feedstocks. The team utilized oyster shells as a low-cost catalyst precursor for the transesterification process, achieving a 70-85% reduction in production costs. Preliminary results indicate the biodiesel meets ASTM D6751 specifications. The research promotes waste valorization and has implications for sustainable fuel production globally.

Published Mar 26, 2026

Nicholls State University researchers have created a biodiesel production method using algae and oyster shells, addressing traditional biodiesel's high costs and environmental issues. Algae, abundant in southern Louisiana's bayous, offers a high-lipid biomass alternative to conventional crops.

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Oyster shells serve as a low-cost catalyst precursor, with calcium oxide produced from them matching commercial catalysts in performance. The production process includes drying algal biomass, lipid extraction, and transesterification with methanol.

Initial findings suggest a 70-85% cost reduction compared to standard methods, and the biodiesel meets ASTM D6751 standards. The team is collaborating with a local company for further performance testing. This research emphasizes waste valorization and could serve as a model for global biodiesel production.