Carbon oxides removal
AssigneeChevron U.S.A. Inc.
InventorsDavid Thomas, Rod Travis, Michael Moppert, Christopher John Kalli, Gerald M. Elphingstone, JR., David L. Charlesworth
Life of this patent
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Abstract
A process for reducing the carbon oxide content in natural gas, by producing a carbon oxide containing natural gas from a geological formation through a natural gas delivery system; providing a reaction zone containing at least one catalyst suitable for hydrocarbon conversion in the natural gas delivery system; introducing hydrogen into the carbon oxide containing natural gas to form a reaction mixture; and passing the reaction mixture to the catalyst in the reaction zone to convert at least a portion of the carbon oxides in the natural gas to hydrocarbons.
Claims19
A process for reducing the carbon oxides content in natural gas, comprising:
- a. producing a carbon oxides containing natural gas from a geological formation through a natural gas delivery system;
- b. providing a reaction zone containing at least one catalyst suitable for hydrocarbon conversion in the natural gas delivery system;
- c. introducing hydrogen into the carbon oxides containing natural gas to form a reaction mixture;
- and
- d. passing the reaction mixture to the catalyst in the reaction zone to convert at least a portion of the carbon oxides in the natural gas to hydrocarbons.
An integrated process for reducing the carbon oxides content in natural gas, comprising:
- a. producing a carbon oxides containing natural gas from a geological formation through a natural gas delivery system;
- b. providing a reaction zone comprising at least one catalyst suitable for hydrocarbon conversion in the natural gas delivery system;
- c. introducing hydrogen into the carbon oxides containing natural gas to form a reaction mixture;
- and
- d. passing the reaction mixture to the catalyst in the reaction zone to convert at least a portion of the carbon oxides in the natural gas to methane in a hydrocarbon synthesis step.
An integrated process for reducing the carbon oxides content in natural gas, comprising:
- a. producing a carbon oxides containing natural gas from a geological formation through a natural gas delivery system;
- b. providing a reaction zone comprising at least one catalyst suitable for hydrocarbon conversion in the natural gas delivery system;
- c. introducing hydrogen into the carbon oxides containing natural gas to form a reaction mixture;
- and
- d. passing the reaction mixture to the catalyst in the reaction zone to convert at least a portion of the carbon oxides in the natural gas to one or more hydrocarbons in a hydrocarbon synthesis step;
- e. separating at least a portion of carbon oxides remaining in the natural gas following the hydrocarbon synthesis step into a carbon oxides rich fluid;
- f. supplying the carbon oxides rich fluid to a metal oxidation step, and reacting at least a portion of the carbon oxides with an active metal at an elevated temperature;
- and
- g. supplying at least a portion of the thermal energy produced during the metal oxidation step to an electrolysis process for recovering hydrogen used to form the reaction mixture.
Dependencies are inferred from the claim text.