A novel reactive adsorption desulfurization Ni/MnO adsorbent and its hydrodesulfurization ability compared with Ni/ZnO

• A novel reactive adsorption desulfurization adsorbent Ni/MnO was found.
• The adsorption capacities of Ni/MnO are 1.5 times greater than those of Ni/ZnO.
• High BET, small particle size and well dispersion made Ni/MnO a good RADS catalyst.

A novel reactive adsorption desulfurization (RADS) Ni/MnO catalyst was prepared by an impregnating method and its RADS performance was compared with that of Ni/ZnO catalyst. The breakthrough time of Ni/MnOx is 1.5 times longer than that of Ni/ZnO. Ni/MnO catalyst presents a better ultra-deep HDS ability than Ni/ZnO catalyst. Characterizations by BET, H2-TPR, XRD and HRTEM demonstrated that NiO has a high dispersion on MnO particles; Ni/MnO has not only higher SBET area but also smaller particle size. These characteristics make Ni/MnO a better RADS catalyst.

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