Process for sulfur production

Patent · Tue Jul 21 04:00:00 EDT 1981

OSTI ID:5751946

Beavon, D K

Sulfur is produced by contacting, in a catalytic selective oxidation zone, a feed gas comprising an acid gas stream containing from about 1 to 100 percent by volume in admixture with about 70 to 130 percent of the stoichiometric amount of oxygen required for conversion of hydrogen sulfide to sulfur and a recycle gas which is a portion of the gas resulting from condensing sulfur from the effluent of the catalytic selective oxidation zone, with a catalyst selectively capable of oxidizing hydrogen sulfide to sulfur dioxide substantially without formation of sulfur trioxide to form a gas stream comprising hydrogen sulfide, sulfur dioxide and sulfur at a temperature between the kindling temperature of the catalyst and about 850* F. Formed sulfur is condensed from the effluent gas stream and a portion of the substantially sulfur-free effluent returned as recycle gas.

• Assignee: Parsons, Ralph M Co The
• Patent Number(s): US 4279882
• OSTI ID: 5751946
• Country of Publication: United States
• Language: English

Related Subjects

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Lignite
& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
CLAUS PROCESS
DESULFURIZATION
ELEMENTS
GASEOUS WASTES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
NONMETALS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
RECOVERY
SULFIDES
SULFUR
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SYNTHESIS
WASTES