Method of removing hydrogen sulfide from gases utilizing a stabilized iron chelate solution

Patent · Tue May 10 00:00:00 EDT 1983

OSTI ID:5997690

Diaz, Z

A cyclic process for the removal of hydrogen sulfide, and carbon dioxide, from a variety of gas streams is disclosed. The gas stream containing the sour gas(Es) is contacted with an aqueous solution of a specific reactant ligand or chelate, or mixtures thereof, optionally in an absorbent, containing specific stabilizers for improvement of chelate life. The hydrogen sulfide is converted to sulfur, CO/sub 2/ may be absorbed to produce a purified gas stream, and the reactant chelate is reduced. The process includes sulfur removal and regeneration of the reactant chelate.

• Assignee: Shell Oil Co
• Patent Number(s): US 4382918
• OSTI ID: 5997690
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402 -- Coal
Lignite
& Peat-- Purification & Upgrading
010800 -- Coal
Lignite
& Peat-- Waste Management
02 PETROLEUM
020800* -- Petroleum-- Waste Management
ABSORPTION
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHELATES
CHEMICAL REACTIONS
COMPLEXES
DESULFURIZATION
FLUE GAS
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASEOUS WASTES
GASES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
IRON COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
REMOVAL
STABILIZATION
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
WASTES