One-step process takes H/sub 2/S from gas stream
A novel, one-step process selectively removes hydrogen sulfide from sourgases and converts dissolved hydrogen sulfide directly to sulfur in a bubble tower filled with a sweetener solution. The sweetener is a proprietary formulation consisting of an alkaline solution of oxidizing and buffering agents. Oxidation of hydrogen sulfide to sulfur is achieved by a liquid-phase oxidation technique. Various sour gas sweetening processes have been used for a number of years. Incentives for use of the one-step process include: 1. Improved economics for hydrogen sulfide removal based on cost-performance evaluations. 2. Simplicity of operation. 3. Low capital cost requirements for the gas processing plant. 4. Adaptability to existing process equipment. 5. Low toxicity and nonhazardous waste characteristics of the spent slurry generated by the hydrogen sulfide reaction. This article presents the current understanding of hydrogen sulfide oxidation chemistry in nitrite solutions, as well as research and field data related to the one-step process. The field data provide quantifiable proof that the one-step process is a viable economical alternative for hydrogen sulfide removal in properly designed and operated equipment.
- Research Organization:
- NL Treating Chemicals, NL Industries Inc., Houston, TX
- OSTI ID:
- 7198777
- Journal Information:
- Oil Gas J.; (United States), Vol. 84:42
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HYDROGEN SULFIDES
REMOVAL
NATURAL GAS
DESULFURIZATION
SULFUR
CHEMICAL PREPARATION
BUFFERS
CAPITALIZED COST
CHEMICAL REACTION YIELD
COST BENEFIT ANALYSIS
DISSOLVED GASES
FINANCIAL INCENTIVES
NATURAL GAS PROCESSING PLANTS
OPERATION
OXIDATION
OXIDIZERS
CHALCOGENIDES
CHEMICAL REACTIONS
COST
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROGEN COMPOUNDS
INDUSTRIAL PLANTS
NONMETALS
SOLUTES
SULFIDES
SULFUR COMPOUNDS
SYNTHESIS
YIELDS
030300* - Natural Gas- Drilling
Production
& Processing