Desulfurizing pellet of manganese oxide and aluminum oxide and process for producing said pellet
AssigneeUnited States Steel Corporation
InventorsRobert G. Olsson, Ethem T. Turkdogan
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Abstract
Hot reducing gas is desulfurized by contacting the gas with a desulfurizing agent comprising a bed of sintered, porous pellets, comprising the reaction product of manganese oxide and aluminum oxide, then regenerating the spent desulfurizing agent by contacting the bed with a gaseous oxidizing atmosphere and then reusing the regenerated desulfurizing agent under the above mentioned conditions for desulfurizing hot reducing gas. The temperature of the bed of pellets is between about 500.degree. C. and about 1300.degree. C. during both the desurfurization and the regeneration steps. The invention relates to the pellets and to the processes of making and using these pellets.
Claims15
A process for producing a pelletized desulfurizing agent for desulfurizing hot reducing gas comprising (1) intimately mixing finely divided manganese oxide and finely divided non-reactive aluminum oxide, (2) forming the thus prepared mixture into a pellet, and (3) heating the pellet to form a sintered, porous pellet consisting essentially of manganese oxide and aluminum oxide.
A desulfurizing agent for hot reducing gas comprising a sintered, porous pellet consisting essentially of manganese oxide and aluminum oxide.
Dependencies are inferred from the claim text.