H/sub 2/S removal

Patent · Tue Jun 14 00:00:00 EDT 1983

OSTI ID:5988754

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 4388293
• OSTI ID: 5988754
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
424000* -- Engineering-- Pollution Control Equipment-- (1980-1989)
ABSORPTION
AQUEOUS SOLUTIONS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHELATES
CHEMICAL REACTIONS
COMPLEXES
DESULFURIZATION
DISPERSIONS
EQUIPMENT
GASEOUS WASTES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
LIGANDS
MIXTURES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL EQUIPMENT
REGENERATION
REMOVAL
SOLUTIONS
SULFIDES
SULFUR COMPOUNDS
WASTES