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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.

  1. Incoming flue gas from HYCHEM’s chimney contains approx. 10% CO2.
  2. 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.
  3. 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.
  4. CO2, purified to almost 100%, is guided into the storage balloon, which acts as a buffer.
  5. The balloon releases the CO2in a controlled manner to the A4F algae unit.