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US 12,006,471 B2Granted
Nanobubbles and gas-liquid mixtures for enhanced carbon dioxide sequestration
AssigneeProtostar Group Ltd.
InventorsTalal Hasan, Ehab Tasfai, Juerg Matter
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Abstract
The present invention discloses a novel process for the mineralization of CO2 in mafic and ultramafic rocks or storage of CO2 in geological formations through the generation and use of nano-sized CO2 bubbles injected into a fluid-mixture.
Claims8
A method of carbon dioxide mineralization and storage, comprising:
- generating CO2 nanobubbles with a nanobubble membrane generator;
- injecting said CO2 nanobubbles as a carbon dioxide and fluid mixture into a rock formation comprising mafic or ultramafic rock via an injection well wherein the carbon dioxide and fluid mixture is flowed through said injection well or an injection well tubing disposed in the rock formation, the injection well and/or injection well tubing having a plurality of longitudinal perforations at a depth of 0.4 to 4 km in said rock formation;
- reacting carbon dioxide in said carbon dioxide and fluid mixture with said rock formation to form calcites and magnesites in the rock formation;
- and
- recycling at least a portion of the fluid from said rock formation via an observation well.
2 more elements
Dependencies are inferred from the claim text.