Process optimization of a fixed bed reactor system for direct air capture

• Parallel fixed bed reactor system designed for direct air capture by adsorption. Solid basis process optimization is achieved through dynamic modelling. High desorption temperature always desired according to sensitivity analyses. Weather conditions highly affect performance. The extraction of CO 2 directly from the atmosphere (Direct Air Capture) commonly employed using supported-amine sorbents. This adsorption technology under rapid development with novel sorbent materials emerging and processes being demonstrated on increasingly larger scale. Optimization such requires accurate knowledge characteristics how operational variables study primarily focuses latter, where we aim quantify influence parameters energy duty productivity. In addition, examine weather rate. For this, develop a model complete temperature-vacuum swing cycle (TVSA). was validated experimental results kg-scale system. impact selected assessed two-dimensional We show that preferably high, limited chemical stability material in this particular case. working capacity should be high when opting an towards duty, whereas it reaches clear optimum terms Finally, conclude diurnal variations can significantly performance certainly considered during design operation. With these insights developed model, provides sound further combined solid amine