We are pleased to announce the publication of a new peer-reviewed study demonstrating the technical feasibility of potassium carbonate–based CO₂ capture as a robust alternative to conventional amine systems.

Using detailed rate-based process modelling, the study achieves approximately 90% CO₂ removal across representative industrial flue gas streams, including cement production, biomass combustion, and biogas upgrading. The analysis highlights key design trade-offs between absorber height, solvent circulation rate, and regeneration energy demand—providing critical insight for industrial-scale implementation.

Why It Matters

Potassium carbonate systems offer significant advantages in terms of chemical stability, reduced solvent losses, and operational robustness. The findings deliver a solid engineering basis for scaling next-generation CO₂ capture technologies and directly support the objectives of CRONUS, enabling efficient and flexible carbon capture integrated with downstream CO₂ utilization pathways, including circular and bio-based CO₂ applications.

Publication Details

Rate-Based Modeling and Sensitivity Analysis of Potassium Carbonate Systems for Carbon Dioxide Capture from Industrial Flue Gases
Authors: Giannis Pachakis, Sofia Mai, Elli Maria Barampouti, Dimitris Malamis