At HyChem SA in Portugal, CAPTUS partners Novis GmbH, A4F-Algae for Future, and CIRCE – Centro Tecnológico will demonstrate a fully integrated Carbon Capture and Utilisation process – from CO₂ capture, microalgae cultivation, and hydrothermal liquefaction to high-energy-content bio-oils.
In the first step, CO₂ from flue gas is captured and purified in a specially designed carbon capture unit from Novis GmbH.
Advantages of this process:
– CO₂ from production processes is converted into fuels instead of being emitted
– Arginine is ecologically safe (it’s a food supplement), and can be reused in the process
Explore each component of the carbon capture unit in detail.

- Incoming flue gas from HYCHEM’s chimney contains approx. 10% CO2.
- The gas passes throught hree membrane modules, where an aqueous arginine solution binds CO₂. The modules are called contactors. The remaining flue gas is released.
- The core of the unit is the electrodialysis stack. Loaded arginine flows through special membranes. Direct current causes CO2 molecules to be released from the arginine. The arginine is 100% reused in the process.
- CO2, purified to almost 100%, is guided into the storage balloon, which acts as a buffer.
- The balloon releases the CO2in a controlled manner to the A4F algae unit.
