A microalgae residue based carbon solid acid catalyst for biodiesel production.

Area of Science:

• Green Chemistry
• Catalysis
• Renewable Energy

Background:

• Microalgae are a promising source for biodiesel production to address energy demands.
• Microalgae residue after oil extraction is often wasted, presenting an opportunity for valorization.
• Developing sustainable catalysts is crucial for efficient and environmentally friendly biofuel synthesis.

Purpose of the Study:

• To synthesize a novel carbon-based solid acid catalyst from microalgae residue.
• To evaluate the catalyst's performance in biodiesel production via esterification and transesterification.
• To assess the catalyst's stability and reusability over multiple reaction cycles.

Main Methods:

• In situ hydrothermal partial carbonization of microalgae residue to create a carbon-based solid acid catalyst.
• Characterization of the synthesized catalyst using appropriate analytical techniques.
• Testing the catalyst's efficacy in the esterification of oleic acid and transesterification of triglycerides for biodiesel synthesis.

Main Results:

• A novel carbon-based solid acid catalyst was successfully synthesized from microalgae residue.
• The catalyst exhibited high catalytic activity in both esterification and transesterification reactions.
• The catalyst demonstrated excellent reusability, maintaining its activity over five cycles.

Conclusions:

• Microalgae residue can be effectively converted into a valuable solid acid catalyst.
• The developed catalyst offers a sustainable and efficient route for biodiesel production.
• The catalyst's stability and recyclability make it a promising option for industrial applications.