Method of removing hydrogen sulfide from gases

Patent · Tue Sep 25 04:00:00 EDT 1973

OSTI ID:6796154

Heiba, E I; Srinivasan, S

A method for removing hydrogen sulfide from a gas stream involves passing the hydrogen sulfide-containing gas through a solution of cupric ions in a strong acid in the presence of oxygen. The acids used are the very strong mineral acids which include sulfuric acid, nitric acid, phosphoric acid, phosphorous acid, acetic and hydrochloric acid. Hydrochloric acid is the most preferred. The pH of the acid-copper system should be very low, generally 1 to about 6, and preferably from 1 to about 4. The use of the cupric ion is specific. It effectively leads to the formation of sulfur in a conveniently removable form without itself being removed from the system as a sulfide. The resulting cuprous ion is continuously being regenerated to its higher oxidation level in situ for further operation. (9 claims)

• Assignee: Mobil Oi Corp.
• Patent Number(s): US 3761569
• OSTI ID: 6796154
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
CATIONS
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL REACTIONS
COPPER COMPOUNDS
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
INDUSTRIAL PLANTS
INORGANIC ACIDS
IONS
NATURAL GAS
NATURAL GAS PROCESSING PLANTS
NITRIC ACID
NONMETALS
OXYGEN
PH VALUE
PHOSPHORIC ACID
PHOSPHOROUS ACID
REMOVAL
SULFIDES
SULFUR COMPOUNDS
SULFURIC ACID
TRANSITION ELEMENT COMPOUNDS