13X Ex-Cu zeolite performance characterization towards H2S removal for biogas use in molten carbonate fuel cells

13X Ex-Cu zeolite showed high potentiality for H2S uptake, specifically lowering space velocity, increasing reactor temperature and in presence of high methane concentration in the gas mixture, with adsorption capacity of 40 mg/g under specific and optimized conditions. By means of B.E.T. and XRD analyses, it was demonstrated that the obtained enhanced performance is due to the presence of a large amount of Cu2+ ions, guaranteed by the innovative synthesis procedure, able to realize an efficient physical-chemical adsorption mechanism.