Electrochemical Regeneration of CO₂ Absorbent

Electrochemical hydroxide and carbon dioxide regeneration method and apparatus

This system provides an efficient way to recycle key materials—hydroxide and carbon dioxide—from a chemical called alkali metal carbonate using an electrochemical reactor instead of a traditional heat-based process. The reactor separates these components through an electrochemical process:

• Hydroxide (MOH) and carbon dioxide (CO₂) are regenerated.

• A special design prevents hydroxide and CO₂ from recombining, ensuring CO₂ is collected effectively.

• This setup reduces the need for fossil fuels, making it ideal for systems like direct air capture (DAC), which remove CO₂ from the atmosphere.

• This system also generates hydrogen, which can be used with CO₂ to synthesize fuels.

In simpler terms, this technology offers the potential for a cleaner, more energy-efficient way to recycle chemicals needed for capturing carbon dioxide, helping to fight climate change.