Low-temperature CO₂ removal from natural gas

The following presentation will be based on preliminary results obtained in the KPN project A GREEN Sea. On the background of the project objective, “identify, mature and evaluate new technologies and concepts for acid gas removal (AGR) avoiding CO₂ emissions to air and use of harmful chemicals”, different technology alternatives for acid gas removal are under investigation: membranes, low-temperature concepts, sorbents and solvents. This presentation will show results obtained for low-temperature CO₂ removal from a raw natural gas feed stream containing 50% CO₂. In order to compare acid gas removal concepts, different parameters such as energy efficiency, costs, flexibility, volumes, weights and others, can be used. Our presentation will contain two main sections: Estimates of energy consumption and heat and mass balances based on AspenTech HYSYS simulations Assessment of internal volumes and weights for the simulation models