Abstract
Cu/ZnO/Al 2O 3 adsorbents for removal of odorant sulfur compounds were prepared with various Al/Cu molar ratios by co-precipitation method. The sulfur removing ability as a function of Al/Cu molar ratio of the adsorbents for t-butyl mercaptan (TBM), tetrahydro thiophene (THT), dimethyl disulfide (DMS) and H 2S were investigated at 250 °C and 6000 h −1 space velocity. Based on the results of adsorption capacity and characterization by various techniques, the optimum Al/Cu ratio for maximum sulfur removal capacity is found to be at Al/Cu molar ratio of 0.15 which possesses the well-dispersed Cu species with high reducibility. The adsorption capacity is highest for H 2S followed by TBM, DMS and THT. The main role of Al 2O 3 component is to provide the dispersion of CuO species homogeneously with small particle formation and high reducibility.
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