Combined natural gas power generation and CO2 sequestration system
AssigneeBloom Energy Corporation
InventorMartin Perry
Life of this patent
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Abstract
A system and method for power generation and CO2 sequestration include a fuel cell system configured to generate power using natural gas (NG), a container configured to store liquid natural gas (LNG), and a fluid processor configured to convert LNG received from the container into NG and to convert exhaust output from the fuel cell system to dry ice by transferring heat between and the LNG and the exhaust.
Claims20
A combined system for power generation and CO2 sequestration, comprising:
- a fuel cell system configured to generate power using natural gas (NG);
- a container configured to store liquid natural gas (LNG);
- and
- a fluid processor configured to convert LNG received from the container into NG and to convert exhaust output from the fuel cell system to dry ice by transferring heat between and the LNG and the exhaust, wherein the fluid processor comprises:
- a first heat exchanger configured to cool the exhaust output from the fuel cell system;
- and
- a compressor configured to compress the cooled fuel cell system exhaust output from the first heat exchanger.
A combined system for power generation and CO2 sequestration, comprising:
- a fuel cell system configured to generate power using natural gas (NG);
- a container configured to store liquid natural gas (LNG);
- a fluid processor configured to convert LNG received from the container into NG and to convert exhaust output from the fuel cell system to dry ice by transferring heat between the LNG and the exhaust, wherein the fluid processor comprises:
- a first heat exchanger configured to cool the exhaust output from the fuel cell system;
- a compressor configured to compress the cooled exhaust output from the first heat exchanger;
- a second heat exchanger configured to generate liquid CO2 by transferring heat between the compressed exhaust output from the compressor and the LNG received from the container;
- and
- a dry ice machine configured to convert the liquid CO2 received from the second heat exchanger to the dry ice, and
- wherein the first heat exchanger is configured to cool the exhaust output from the fuel cell system using the NG output from the second heat exchanger.
A method of combined power generation and CO2 sequestration, comprising:
- providing natural gas (NG) to a fuel cell system to generate power;
- cooling exhaust output from fuel cell system using a first heat exchanger;
- compressing the cooled fuel cell system exhaust output from the first heat exchanger using a compressor;
- cooling the compressed exhaust output from the compressor using a second heat exchanger provided with liquid natural gas (LNG) to generate liquid CO2;
- converting the liquid CO2 into dry ice;
- vaporizing the LNG to generate the NG;
- and
- providing the generated NG to the fuel cell system.
Dependencies are inferred from the claim text.