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US 2022/0227625 A1Published application
Method for production of elemental sulfur and sulfuric acid
AssigneeHaldor TopsøE A/S
InventorsMorten THELLEFSEN, Mads LYKKE
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AssigneeHaldor TopsøE A/S
InventorsMorten THELLEFSEN, Mads LYKKE
Estimating the term…
A process for production of elemental sulfur from a feedstock gas including from 15% to 100 vol % H2S and a stream of sulfuric acid, the process including: a) providing a Claus reaction furnace feed stream substoichiometric oxygen with respect to the Claus reaction, b) directing to a reaction furnace zone operating at elevated temperature such as above 900° C., c) directing to a sulfuric acid evaporation zone downstream said reaction furnace zone, d) cooling to provide a cooled Claus converter feed gas, e) directing to contact a material catalytically active in the Claus reaction, f) withdrawing a Claus tail gas and elemental sulfur, g) directing to a Claus tail gas treatment plant, with the associated benefit of a process involving injection of sulfuric acid in a sulfuric acid evaporation zone allowing high temperature combustion of said feedstock gas, including impurities, without cooling from evaporation and decomposition of sulfuric acid.
A process for production of elemental sulfur from a feedstock gas comprising from 15% to 100 vol % H2S and a stream of sulfuric acid, the process comprising
A process plant comprising a reaction furnace zone, a sulfuric acid evaporation zone, a Claus waste heat boiler, a Claus conversion section, a means for sulfur oxidation and a sulfuric acid section, wherein the reaction furnace zone has an inlet and an outlet, the sulfuric acid evaporation zone has a gas inlet, a sulfuric acid inlet and an outlet, the Claus waste heat boiler has a gas inlet, a gas outlet and an elemental sulfur outlet, the Claus conversion section has a gas inlet, a gas outlet and an elemental sulfur outlet, the means for sulfur oxidation has an inlet and an outlet and the sulfuric acid section has a gas inlet, a gas outlet and a sulfuric acid outlet, and wherein the inlet of the reaction furnace zone is configured for receiving a feedstock gas and an oxidant, wherein the outlet the reaction furnace zone is configured for being in fluid communication with the gas inlet of the sulfuric acid evaporation zone, the sulfuric acid inlet of the sulfuric acid evaporation zone is configured for receiving a stream of sulfuric acid and the outlet of the sulfuric acid evaporation zone is configured for being in fluid communication with the inlet of the Claus waste heat boiler, wherein the outlet the Claus waste heat boiler is configured for being in fluid communication with the inlet of the Claus conversion section
Dependencies are inferred from the claim text.