“…The purpose of measurement of the dimensions of the slot was to compare the deposits in the spent CC with the new CC. The EDS results revealed that the primary elements present in the ceramic bed were O, Al, Si, Mg, Na, C, Pt, Pd, Rh, and C. The results are in accordance with the standard composition of an oxidation-reduction CC [24]. In theoretical scenarios, combustion of hydrocarbon fuel should produce CO 2 and H 2 O, but in actual conditions, the combustion process is oxygen deficient, resulting in the production of harmful pollutants such as carbon monoxide (CO), unburned hydrocarbons, and oxides of nitrogen and sulfur [25].…”