Power Generation And Methane Recovery From Methane Hydrates
AssigneeExxonMobil Upstream Research Company
InventorsSulabh K. Dhanuka, Michael W. Eaton, Richard A. Huntington
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Abstract
The present techniques are directed to a system and method for generating power and recovering methane from methane hydrates. The system includes a low emissions power plant configured to generate power, wherein an exhaust gas from the low emissions power plant provides a gas mixture including nitrogen and carbon dioxide. The system also includes a methane recovery system configured to recover methane from methane hydrates by injecting the nitrogen and the carbon dioxide from the gas mixture into the methane hydrates.
Claims25
A system for generating power and recovering methane from methane hydrates, comprising:
- a low emissions power plant configured to generate power, wherein an exhaust gas from the low emissions power plant provides a gas mixture comprising nitrogen and carbon dioxide;
- and
- a methane recovery system configured to recover methane from methane hydrates by injecting the nitrogen and the carbon dioxide from the gas mixture into the methane hydrates.
A method for generating power and recovering methane from methane hydrates, comprising:
- producing power via a low emissions power plant, wherein an exhaust gas from the low emissions power plant provides a gas mixture comprising nitrogen and carbon dioxide;
- and
- recovering methane from methane hydrates by injecting the nitrogen and the carbon dioxide from the gas mixture into the methane hydrates.
A system for recovering methane from methane hydrates using a gas mixture from a combined cycle power plant, comprising:
- an expander turbine configured to provide mechanical energy by extracting energy from a gas mixture exiting a combustor, wherein the gas mixture comprises nitrogen and carbon dioxide;
- a heat recovery steam generator (HRSG) configured to generate steam by heating a boiler with the gas mixture from the expander turbine;
- a steam turbine configured to provide mechanical energy by extracting energy from the steam generated by the HRSG;
- a generator configured to generate electricity from the mechanical energy provided by the expander turbine and the steam turbine;
- a separation system configured to separate the carbon dioxide from the methane within the gas mixture;
- and
- a methane recovery system configured to recover methane from methane hydrates by injecting the nitrogen and the carbon dioxide from the gas mixture into the methane hydrates, wherein at least a portion of the methane recovered from the methane hydrates is flowed into the combustor as fuel.
Dependencies are inferred from the claim text.