Catalytic Hydrodesulfurization (HDS)This process is used to remove sulfur from petroleum feedstocks.Catalyst => MoS2 supported on alumina (small amounts of cobalt enhance catalytic activity)Catalyst prepared by processing the ores to oxides.Oxidic form converted to sulfidic form by removing sulfur from petroleum.Catalyst then reconverted to oxidic form.Catalyst poisoned by metals in feedstock (V and Ni).
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