US 11,235,278 B2 · Systems and methods for CO2 sequestration in marine vessels

Abstract

Systems and methods for sequestering emissions from marine vessels are provided. Emissions (either flue gas from exhaust or CO2 carried on the ship under pressure in gas cylinders or CO2 obtained during the ships travel via capture) are mixed in a reactor with sea water (e.g., via gas exchange through head-space equilibration or bubbling through a diffuser) until a pH of 5.5 to 6.5 is obtained. Systems and reactors pump seawater through a reactor vessel containing a reaction medium (e.g., carbonates and silicates). The reactor produces an effluent that can be expelled into the ocean. The effluent produced from the result of a reaction according to embodiments has approximately twice the concentration of Dissolved Inorganic Carbon (DIC) and Alkalinity (Alk) as the incoming sea water and has an increased Ca+2 concentration above sea water.

Claims20

Dependent claims

An emissions sequestration reactor for a marine vessel comprising:

a reaction vessel having at least a gas inlet in fluid communication with an emission output stream from a marine vessel, a seawater inlet in fluid communication with a source of seawater, and a fluid outlet, the reaction vessel further having at least a mixing region adjacent the seawater and gas inlets, and a reaction region disposed between the mixing region and the outlet;
a reaction medium disposed within the reaction region and configured to sequester at least one of carbon and sulfur from the emission output;
and
a diffusion grating onto which the reaction medium is disposed, positioned between the mixing region and reaction region and configured to allow fluid to pass between the mixing region and the reaction region and prevent the reaction medium from passing into the mixing region while allowing seawater to pass into the reaction region from the mixing region.

1 more element

Dependencies are inferred from the claim text.

Systems and methods for CO2 sequestration in marine vessels

Life of this patent

Systems and methods for CO2 sequestration in marine vessels

Life of this patent

Abstract

Claims20