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AssigneeHaldor TopsøE A/S
InventorsMorten THELLEFSEN, Per Aggerholm SØRENSEN, Martin MØLLERHØJ, Mads LYKKE
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A process plant and a process for production of 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 with a substoichiometric amount of oxygen, b) directing to a Claus reaction furnace operating at elevated temperature, c) cooling to provide a cooled Claus converter feed gas, d) directing to contact a material catalytically active in the Claus reaction, e) withdrawing a Claus tail gas and elementary sulfur, f) directing a stream comprising said Claus tail gas to a Claus tail gas treatment, wherein sulfuric acid directed to said Claus reaction furnace is in the form of droplets with 90% of the mass of the droplets having a diameter below 500 μm, with the associated benefit of such a process efficiently converting all liquid H2SO4 to gaseous H2SO4 and further to SO2.
A process for production of 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 Claus reaction furnace, a Claus waste heat boiler, a Claus conversion section, a Claus tail gas combustor and a sulfuric acid section, wherein the Claus reaction furnace has a furnace inlet, an acid nozzle 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 Claus tail gas combustor 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 Claus reaction furnace is configured for receiving a feedstock gas and an oxidant, and the outlet of the Claus reaction furnace 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 and wherein the inlet of the Claus tail gas combustor is configured for being in fluid connection with the outlet of said Claus conversion section gas outlet, the Claus tail gas combustor outlet is configured for being in fluid connection with the inlet of the sulfuric acid section, wherein the sulfuric acid outlet of the sulfuric acid section is in fluid communication with the acid nozzle inlet of said Claus reaction furnace.
Dependencies are inferred from the claim text.