SEQUESTRATION OF CARBON IN SUBTERRANEAN VOLUMES

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SEQUESTRATION OF CARBON IN SUBTERRANEAN VOLUMES - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240309733 titled 'SEQUESTRATION OF CARBON IN SUBTERRANEAN VOLUMES

The abstract describes a method for subsurface sequestration of carbon in a subterranean zone by injecting an aqueous solution and a mixture of silicate nanoparticles suspended in an acidic solution with a pH of less than 4. Carbon dioxide is then injected into the fluid-filled volume to precipitate carbonate minerals, with metal cations reacting with bicarbonate formed from the carbon dioxide. The metal cations are a product of the decomposition of the silicate nanoparticles in the acidic solution.

Injection of aqueous solution and mixture of silicate nanoparticles in an acidic solution with a pH of less than 4.
Carbon dioxide injection to precipitate carbonate minerals.
Formation of carbonate minerals from the reaction of metal cations with bicarbonate.
Metal cations are a product of the decomposition of silicate nanoparticles in the acidic solution.

Potential Applications: - Carbon sequestration - Environmental remediation - Geologic carbon storage

Problems Solved: - Reducing carbon emissions - Sequestering carbon in a safe and efficient manner

Benefits: - Mitigating climate change - Enhancing environmental sustainability

Commercial Applications: - Carbon capture and storage technology for industries - Environmental consulting services for carbon sequestration projects

Questions about Subsurface Carbon Sequestration: 1. How does the injection of silicate nanoparticles aid in the formation of carbonate minerals? 2. What are the potential long-term effects of subsurface carbon sequestration on the environment?

Frequently Updated Research: - Ongoing studies on the efficiency and scalability of subsurface carbon sequestration methods.

Original Abstract Submitted

a method for subsurface sequestration of carbon in a subterranean zone includes forming a fluid-filled volume in the subterranean zone by injecting an aqueous into the subterranean zone and injecting a mixture comprising silicate nanoparticles suspended in an acidic solution having a ph of less than 4. carbon in the form of carbon dioxide is injected into the fluid-filled volume such that a least a portion of the carbon is sequestered by precipitation of carbonate minerals. at least a portion of the carbonate minerals are formed from reaction of metal cations with bicarbonate formed from the carbon dioxide, and least a portion of the metal cations are a product of decomposition of the silicate nanoparticles in the acidic solution.