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Adsorbents consisting of Mn x O y , Zn x O y , and Mn x O y -Zn x O y supported on activated carbon (AC) have been successfully prepared and characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction analysis (XRD), Fourier-transform infrared spectroscopy (FTIR), specific surface area (BET) and SEM. The results show that Mn is present in the forms of Mn 3þ and Mn 4þ , and Zn is present in the form of Zn 2þ . Mn and Zn mainly exist in the forms of MnO 2 and ZnO respectively, as the active components of the adsorbents. MnO 2 -ZnO/AC was found to exhibit the best H 2 S desulfurization performance. At 313 K, the breakthrough time was 108 min, the saturated sulfur capacity was 334.7 mg/g, and the degree of desulfurization was 74.2%. The H 2 S

Mn x O y , Co x O y , and Mn x O y -Co x O y supported on activated carbon (AC) adsorbents have been successfully prepared and characterized by specific surface area (BET), X-ray photoelectron spectroscopy, X-ray diffraction analysis, and Fourier-transform infrared spectroscopy.

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