Compressed n2 for energy storage
AssigneeSchlumberger Technology Corporation
InventorsOmar Kabir, Gary W. Sams, Ronald J. Manson
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Abstract
This disclosure describes a power system that includes a first compressor with an air inlet and a compressed air outlet; a nitrogen separator coupled to the compressed air outlet, the nitrogen separator comprising a nitrogen concentrate outlet and a byproduct outlet; a second compressor coupled to the nitrogen concentrate outlet, the second compressor having a high pressure outlet for supplying high pressure concentrated nitrogen to an underground storage; and a turbine generator with an inlet for high pressure concentrated nitrogen for coupling to an underground storage.
Claims4
A method comprising:
- producing a gas stream of at least 90% nitrogen by volume;
- pressurizing the gas stream using a compressor;
- injecting the pressurized gas stream into a storage volume;
- releasing gas from the storage volume to a turbine generator;
- and
- generating electricity using the turbine generator.
Dependencies are inferred from the claim text.