Temperature moderation with water of an oxygen enriched claus sulfur plant
AssigneeAir Products and Chemicals, Inc.
InventorBarry W. Brian
Life of this patent
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Abstract
A process and system are set forth for improving an oxygen-enriched Claus plant by introducing a water stream into the reaction furnace to moderate oxygen-induced high temperatures which allow oxygen-enrichment and attendant throughput in the Claus plant to higher levels than heretobefore practiced.
Claims7
In a process for recovering sulfur from a feed gas stream containing 60-100 mole% hydrogen sulfide wherein the gas stream is partially combusted with oxygen-enriched air in a Claus reaction furnace zone, a combustion effluent is cooled with the attendant condensation separation of sulfur in a condensation zone and the remaining effluent stream is further treated, the improvement comprising oxygen enriching the combustion in the range of 32-100 mole% oxygen and introducing a moderating stream of added liquid water into the reaction furnace zone in order to moderate the temperature of the reaction furnace zone in the range of 2400.degree. to 2800.degree. F.
In a process for recovering sulfur from a feed gas stream containing 60-100 mole% hydrogen sulfide wherein the gas stream is partially combusted with oxygen-enriched air in a Claus reaction furnace zone, a combustion effluent is cooled with the attendant condensation separation of sulfur in a first condensation zone and the remaining effluent stream is passed through at least one stage of reheating, conversion in a catalytic Claus reaction zone and cooling with attendant condensation and separation of sulfur in an additional condensation zone, the improvement comprising oxygen enriching the combustion in the range of 32-100 mole% oxygen and introducing a moderating stream of added liquid water into the reaction furnace zone in order to moderate the temperature of the reaction furnace zone in the range of 2400.degree. to 2800.degree. F.
Dependencies are inferred from the claim text.