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Recovering elemental sulfur from waters containing hydrogen sulfide

Patent ·
OSTI ID:5323202
Water, containing hydrogen sulfide, is stripped of hydrogen sulfide with nitrogen gas, without the introduction of external heat. A portion, about one-third, of the hydrogen sulfide removed from the water is oxidized to sulfur dioxide and the resulting sulfur dioxide reacted with the remainder of the hydrogen sulfide to produce elemental sulfur. The elemental sulfur is cooled, collected, and removed from the system. The remaining uncondensed inert gases, consisting primarily of nitrogen, are recycled to strip hydrogen sulfide from additional amounts of water containing it. (11 claims)
Assignee:
Freeport Sulphur Co.
Patent Number(s):
US 3531251
OSTI ID:
5323202
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020800* -- Petroleum-- Waste Management
03 NATURAL GAS
030700 -- Natural Gas-- Waste Management
BRINES
CHALCOGENIDES
CHEMICAL REACTIONS
COOLING
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
NATURAL GAS
NITROGEN
NONMETALS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PROCESSING
PURIFICATION
RECOVERY
RECYCLING
REMOVAL
SEPARATION PROCESSES
SULFIDES
SULFUR
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
WATER
WATER TREATMENT