During the reporting period (M1–M12), significant progress was made in upscaling and optimizing our Direct Air Capture (DAC) technology to achieve a 50 tCO2/year system.
WP3 – Upscale Design for 50 tCO2/y System (M1–M10)
The primary objectives were optimizing the capturing process and materials, improving liquid conductivity in the regeneration unit, enhancing membrane selectivity, and developing a remote monitoring system.
Key Achievements:
• Capturing Unit Optimization: Developed assembly process using pure PAN fiber, analyzed adsorption efficiency of working solutions, and implemented dust removal and humidity control.
• Regeneration Unit Conductivity: Identified optimal working solution concentration and developed in-house electrochemistry testing unit for pH-swing, enabling continuous circular operation.
• Membrane Selectivity: Selected best-performing electrodes, membranes, and separators, improving electrolyzer energy consumption (7.8 MWh/t vs 19 MWh/t in 2023).
• Equipment Optimization: Conducted CFD simulations with Mann and Hummel for optimal fan placement and airflow.
• IoT Monitoring: Implemented remote system with CO2 sensors, cloud infrastructure (Google Cloud), and real-time analytics.
• Full-Scale Design: Completed electrical layouts and engineering designs for 50 tCO2/year system.
WP4 – System Construction and Internal Testing (M7–M19)
This work package is ongoing, focusing on construction and operational validation.
Progress:
• Absorbent Production: Implemented safety protocols, tested new stainless steel reactor for adsorbent preparation, designed full-scale synthesis reactor.
• Supply Chain: Secured offers from 20 ft container and electrolyzer manufacturers.
• Design Freeze: Developing Bill of Materials, finalizing system specifications.
These advancements create a solid foundation for full-scale implementation, with efforts focusing on remaining tasks.
