Carbon capture technology
CO2 capture
HyGear’s carbon capture systems recover CO₂ from flue gases and other CO₂-rich streams to produce high-purity CO₂ (>98%). Specifically, our modular, containerized systems handle up starting from 500 Nm³/hr of flue gas and integrate with existing processes, including with the Hy.GEN®. Utilizing Vacuum Swing Adsorption (VPSA) or amine-based technology, both with the same purpose to produce high-quality gaseous or liquid (bio)CO₂ as a valuable end-product.
Our carbon capture technology:
VPSA technology
Amine technology
Features
- VPSA or amine-based technology
- Easy integration
- No chemicals or heat required
- Autonomous operation
- Containerized & modular
- Low maintenance
- Carbon-neutral or carbon-negative operations
- Food-grade quality CO2
VPSA technology
HyGear’s VPSA technology captures CO₂ from flue gas or other CO₂-containing streams using adsorption. This method is energy-efficient and suitable for applications with higher CO₂ concentrations. The VPSA process works in steps and starts with adsorption.
VPSA: How it works
In this first step and first VPSA stage, the flue gas passes through an adsorbent bed, where CO₂ is selectively captured while N₂, O₂ and other components continue flowing. This is followed by desorption: a vacuum is applied, releasing the CO₂ resulting in a higher CO₂ concentration. Lastly, these two steps are repeated in the purification stage: a second VPSA stage increases the CO₂ purity again to reach a purity of over 98%. The offgas is recycled to recover residual CO₂, to enhance efficiency and reduce waste.
For a continuous flow, multiple adsorbent beds operate in sequence. Our scalable containerized systems can process up to 2,000 Nm³/h of flue gas and can seamlessly integrate with existing processes. For a liquid form of CO₂, we can provide CO₂ liquefaction technology as well.
Amine technology
Our amine carbon capture technology extracts CO₂ from flue gas using a liquid amine absorbent. Amines have a selective reaction with CO₂ and other gases or trace components do not react in the same way.
Amine: How it works
To begin with, flue gas passes through an absorber column, where an amine solution captures CO₂ while at the same time other components and gases continue unaffected and pass through. A multi–stage water washer minimizes emissions from potential absorbent degradation.
The CO₂-rich absorbent is heated in a desorber column. This releases purified CO₂ and the lean absorbent is recycled. Heat recovery optimizes energy efficiency during absorbent regeneration. Lastly, the CO₂ is cooled and dried (moisture is reduced) and the CO₂ is ready for use in gaseous form. For a liquid form of CO2, we can provide a CO2 liquefaction system.
