Conversion of Algae to Biodiesel Using Water

Figure 1

Figure 2 - Subcritical Process

Conversion of Algae to Biodiesel Using Water

Inventor(s) Expertise Dr. Shuguang Deng Professor, Chemical Engineering Arizona State University

Dr. Prafulla Patil Research and Development Engineer American Refining Group, Inc.

Dr. Veera Gnaneswar Gude Assistant Professor, Civil & Environmental Engineering Mississippi State University

Claim: Microalgae, a third generation biofuel resource, has the potential to become a viable feedstock due to their high oil content and environmental-friendly nature. The major challenge, however, has been the high cost of recovering oil from the microalgae prior to converting it into biodiesel. This innovation converts wet algae into biofuel in a shorter time with a better yield than current methods

Technology: In this process, biomass is treated with water at low temperatures (200-400 °C) and high pressures. A wet alga that consists of 90% water is treated with solvents and sent to a centrifuge unit to collect crude biofuel. Heating the mixture in vacuum dryer can recollect solvents. Valuable by-products in this method can be separated and used for other purposes, which increases profits and sustainability.

Advantages of Technology:• No alcohol • No catalyst • Short extraction times ~ 10 minutes • Better yield ~ 46 % • Stable and usable co-products

Potential Applications:• Transportation • Power generation • Residential

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For more information please contact: Carlos Murguia at 575.646.2025 or [email protected]

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