Researchers from CNRS (ENSICAEN and LCS), SG CREE (Saint Gobain Research Provence and NORPRO), and UGENT (LCT and ICAT), collaborating on the e-CODUCT project, have published a new scientific article, “Acid gas valorization through a carbonyl sulfide (COS) intermediate over Na-containing FAU and LTA zeolites,” in Catalysis Today.

The researchers explore a promising route for acid gas (CO₂ and H₂S) valorisation by simultaneously converting acid gas components into carbon monoxide and sulphur via a carbonyl sulfide (COS) intermediate.

The study compares zeolites 13X and 4A for COS formation and investigates various temperatures, acid gas partial pressures, and zeolite water contents to examine the reaction profiles of the two zeolites. It identifies their respective operating windows that enhance stability while reducing energy demand.