Methods of desulfurizing gases
This patent describes a method for desulfurizing gases formed by the incomplete combustion of sulfur containing hydrocarbons at high temperature in which gases the sulfur is mainly in the form of one of hydrogen sulfide and sulfur carbonyl whereby the sulfur is removed to sufficiently low levels that when combustion of the gases is completed the gases emitted the atmosphere have a sulfur content which is less than one pound of sulfur per million British thermal units produced by combustion of fuel or its equivalent comprising the steps of: a. Controlling the incomplete combustion of the sulfur containing hydrocarbons so that the ratio of carbon monoxide to carbon dioxide (CO/CO/sub 2/) ratio at standard conditions (32/sup 0/F and one atmosphere pressure) is greater than one; and b. Reacting the gases whose CO/CO/sub 2/ ratio is greater than one and whose sulfur content is in the form of either H/sub 2/S and sulfur carbonyl (COS) with cerium oxide, whereby the H/sub 2/S content of the desulfurized gases is less than 1000 part per million when the ratio of the CO/CO/sub 2/ is greater than one and the temperature is less than 1600/sup 0/C.
- Assignee:
- NOV; NOV-88-001185; EDB-88-071728
- Patent Number(s):
- US 4714598
- OSTI ID:
- 5322889
- Resource Relation:
- Patent File Date: Filed date 31 Mar 1986
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
03 NATURAL GAS
54 ENVIRONMENTAL SCIENCES
GASEOUS WASTES
DESULFURIZATION
AIR POLLUTION CONTROL
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXYSULFIDE
COMBUSTION CONTROL
COMBUSTION PRODUCTS
HYDROCARBONS
HYDROGEN SULFIDES
SULFUR CONTENT
VERY HIGH TEMPERATURE
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
HYDROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
SULFIDES
SULFUR COMPOUNDS
WASTES
020800* - Petroleum- Waste Management
030700 - Natural Gas- Waste Management
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)