Algae and Oyster Shells Yield Low-Cost Biodiesel
Why this is here: The research team reduced biodiesel production costs by 70-85% by utilizing a catalyst derived from locally sourced oyster shells, addressing a key barrier to widespread biodiesel adoption.
Researchers developed an inexpensive biodiesel production method using algae and oyster shells sourced from Louisiana bayous. Bello Makama and his team at Nicholls State University harvested algae from local ditches and converted oyster shells into a catalyst.
This approach addresses challenges with traditional biodiesel production, which often requires land used for food crops and expensive catalysts. The team extracted oils from crushed algae and combined them with methanol and their oyster shell catalyst under heat.
Initial modeling indicates the oyster-based catalyst lowered production costs by roughly 70% to 85%. Researchers will present their findings at the ACS Spring 2026 meeting in Atlanta, focusing on optimizing yield and verifying the fuel meets international standards. Makama noted the process is scalable globally, as algae and oyster shells are widely available and do not compete with agricultural land.