Method of reducing sulfur deposition in hydrogen sulfide equipment

Patent · Tue Sep 06 04:00:00 EDT 1988

OSTI ID:6673480

Romoda, I; Homay, R V; Orminston, R M

This patent describes a method for removing hydrogen sulfide from a gas stream comprising (1) contacting the gas stream in an absorber with a circulating aqueous solution to convert the hydrogen sulfide to elemental sulfur particles, (2) passing the solution containing the sulfur particles to a reactor where the reaction of solution sulfide to sulfur is completed, (3) passing the solution containing the sulfur particles to an oxidizer, (4) oxidizing the solution containing the sulfur particles in the oxidizer to form a regenerated solution, (5) removing the sulfur particles from the regenerated solution, and (6) recirculating the clarified solution to the absorber; The improvement comprising adding at least one hydroxyquinone compound selected from the group consisting of di-, tri-, or tetrahydroxyanthraquinones that have on hydroxy group in the alpha position to the absorber in an amount effective to reduce sulfur deposition in the absorber.

• Assignee: Chevron Research Co., San Francisco, CA
• Patent Number(s): US 4769228
• OSTI ID: 6673480
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
ADSORBENTS
ANTHRAQUINONES
AQUEOUS SOLUTIONS
AROMATICS
CHALCOGENIDES
CHEMICAL REACTIONS
DEPOSITION
DESORPTION
DESULFURIZATION
DISPERSIONS
ELEMENTS
FLUIDS
GASES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
HYDROXY COMPOUNDS
MIXTURES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXIDIZERS
PROCESSING
PRODUCTION
QUINONES
RECOVERY
REMOVAL
SEPARATION EQUIPMENT
SOLUTIONS
SULFIDES
SULFUR
SULFUR COMPOUNDS