System for offshore carbon dioxide capture
AssigneeEquinor Energy AS
InventorsAslak Einbu, Torbjørn Pettersen, John Morud
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Abstract
A capture system for offshore carbon dioxide capture and a method for offshore carbon dioxide capture are described. A capture system for offshore carbon dioxide capture, the system comprising: a pressurised flue gas source configured to provide a pressurised flue gas 101; a solvent source configured to provide a liquid solvent; and a two-phase atomising nozzle in fluid communication with the pressurised flue gas source and the solvent source; wherein the two-phase atomising nozzle is configured for two-phase flow of a mixture of the pressurised flue gas and the liquid solvent in order to generate an atomised solvent spray of the liquid solvent.
Claims14
A carbon dioxide capture system, the system comprising:
- a pressurized gas source configured to provide a pressurized gas, wherein the pressurized gas is ambient air pressurized by a compressor, fan, blower or pump;
- a solvent source configured to provide a liquid solvent, wherein the liquid solvent is a substance comprising an amime group;
- a two-phase atomizing nozzle in fluid communication with the pressurized gas source and the solvent source;
- wherein the two-phase atomizing nozzle is configured for two-phase flow of a mixture of the pressurized gas and the liquid solvent in order to generate an atomized solvent spray of the liquid solvent;
- an inlet to the capture system, the inlet being upstream of the two-phase atomizing nozzle and in fluid communication with the pressurized gas source;
- and
- an outlet from the capture system, which is downstream of the two-phase atomizing nozzle, so that a part of the pressurized gas enters the inlet and flows past the two-phase atomizing nozzle, being exposed to the atomized solvent spray, before passing out the outlet;
- wherein the atomized solvent spray is configured to capture carbon dioxide present in the pressurized gas.
A method for carbon dioxide capture, the method comprising:
- providing a pressurized gas;
- providing a first part of the pressurized gas to a two-phase atomizing nozzle;
- providing liquid solvent to the two-phase atomizing nozzle;
- generating an atomized solvent spray using the two-phase atomizing nozzle;
- and
- providing a second part of the pressurized gas to an inlet of a carbon dioxide capture system, the inlet being upstream of the two-phase atomizing nozzle so that said second part of the pressurized gas is exposed to said atomized solvent spray, before passing out an outlet of the capture system, which is downstream of the two-phase atomizing nozzle;
- wherein the liquid solvent is a substance comprising an amine group;
- wherein the pressurized gas is ambient air pressurized by a compressor, fan, blower or pump;
- and
- wherein the two-phase atomizing nozzle is configured for two-phase flow of a mixture of the pressurized gas and the liquid solvent in order to generate the atomized solvent spray of the liquid solvent.
Dependencies are inferred from the claim text.