Compressed hydrogen and air power system
AssigneeCleantech Geomechanics Inc.
InventorsRoman A. Bilak, Maurice B. Dusseault
Life of this patent
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Abstract
A system for fluid storage includes a first cased-wellbore vessel (CWV) provided in a subsurface comprising surrounding rock formation, the surrounding rock formation having geomechanical properties that provide stiffness and in situ confining stress to the first CWV; and a fluid comprising compressed hydrogen gas or hydrogen liquid is stored in the first CWV. Furthermore, using the CWVs in a system for energy storage, energy recovery and generating electrical power for generating electrical power from a sequential expansion of the compressed air and the compressed hydrogen gas or ammonia fluid, and combustion of the compressed hydrogen gas or ammonia fluid.
Claims24
A system for fluid storage, comprising:
- a first cased-wellbore vessel (CWV) provided in a subsurface comprising a surrounding rock formation, the surrounding rock formation having geomechanical properties that provide stiffness and in situ confining stress to the first CWV, the first CWV comprising a casing cemented to the surrounding rock formation for providing in situ confinement from the surrounding rock formation due to stiffness of the surrounding rock formation;
- and
- a fluid comprising a compressed gas or liquid stored in the first CWV, wherein the casing is made of low-carbon and H2-resistant steel, with effect that the first CWV stores the compressed gas at a pressure up to 110 MPa and a temperature up to 300° C.
A system for energy storage and energy recovery and generating electrical power, comprising:
- two or more cased-wellbore vessels (CWVs) provided in a subsurface for separately storing compressed air and compressed hydrogen gas or ammonia fluid;
- and
- an integrated expansion and combustion system provided at a surface in sealed, fluid communication with the two or more CWVs for generating electrical power from a sequential expansion of the compressed air and the compressed hydrogen gas or ammonia fluid, and subsequent combustion of the compressed hydrogen gas or ammonia fluid, said expansion and combustion system comprising a combustion turbine for generating electrical power using energy generated from the combustion of the compressed hydrogen gas or ammonia fluid.
Dependencies are inferred from the claim text.