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US 2002/0159937 A1Published application
Method and apparatus for removing oxygen from natural gas
AssigneePhillips Petroleum Company
InventorsDavid V. Duchane, William R. Parrish, Douglas W. Hausler
Life of this patent
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Abstract
Oxygen is removed from natural gas by contacting oxygen-containing natural gas with nitric oxide under conditions sufficient to produce nitrogen dioxide.
Claims21
A method of removing oxygen from natural gas, said method comprising the step of:
- (a) contacting a volume of oxygen-containing natural gas with nitric oxide under conditions sufficient to produce nitrogen dioxide.
A method of removing oxygen from a natural gas stream, said method comprising the steps of:
- (a) charging an oxygen-containing natural gas stream to a pipeline for transporting said oxygen-containing natural gas stream;
- (b) injecting nitric oxide into said pipeline;
- and
- (c) separating a gas-phase component in said pipeline from a liquid-phase component in said pipeline.
1 more element
An apparatus comprising:
- a natural gas line for transporting natural gas;
- a nitric oxide source for providing a quantity of nitric oxide;
- and
- a nitric oxide injector fluidically coupled to said natural gas line and said nitric oxide source, said nitric oxide injector operable to conduct nitric oxide from said nitric oxide source into said natural gas line.
1 more element
Dependencies are inferred from the claim text.