Supercritical water oxidation apparatus and process
AssigneeParsons Corporation
InventorsJohn Scott, James Osterloh
Life of this patent
Estimating the term…
Abstract
A method for oxidizing an organic material includes the steps of (a) forming a preoxidation mixture comprising the organic material and water, and (b) causing the preoxidation mixture to react with a liquid oxidizer in a continuous flow reactor supercritical conditions for water, including a pressure of at least 3206 psia and a temperature of at least 705° F., to form a post-oxidation mixture containing condensible material and non-condensible material, wherein substantially all of the organic material has been oxidized.
Claims16
A method of oxidizing an organic material comprising the steps of:
- (a) forming a preoxidation mixture comprising the organic material and water;
- (b) causing the preoxidation mixture to react with a liquid oxidizer in a continuous flow reactor at supercritical conditions for water, including a pressure of at least 3206 psia and a temperature of at least 705° F., to form a post-oxidation mixture containing condensible material and non-condensible material, wherein substantially all of the organic material has been oxidized;
- and
- (c) reducing the pressure of the post-oxidation material to less than about 550 psig while maintaining the condensible material within the post-oxidation mixture in gaseous form and transporting solids/salts in a gaseous suspension.
A method of oxidizing an organic material comprising the steps of:
- (a) forming a preoxidation mixture comprising the organic material and water;
- and
- (b) causing the preoxidation mixture to react with a liquid oxidizer in a continuous flow reactor at supercritical conditions for water, including a pressure of at least 3206 psia and a temperature of at least 705° F., to form a post-oxidation mixture containing condensible material and non-condensible material, wherein substantially all of the organic material has been oxidized;
- wherein the reactor comprises a reactor body with reactor walls and a threaded reactor upper plug, and wherein the reactor also comprises a cylindrical liner attached solely to the threaded reactor upper plug, such that, when the threaded reactor upper plug is removed from the reactor, the reactor liner is consequently and simultaneously removed from the reactor as well.
A method of oxidizing an organic material comprising the steps of:
- (a) forming a preoxidation mixture comprising the organic material and water;
- and
- (b) causing the preoxidation mixture to react with a liquid oxidizer in a continuous flow reactor at supercritical conditions for water, including a pressure of at least 3206 psia and a temperature of at least 705° F., to form a post-oxidation mixture containing condensible material and non-condensible material, wherein substantially all of the organic material has been oxidized;
- wherein the reactor comprises an internal letdown valve having a control valve piston and a pressure control needle disposed at the outlet of a ball cap, the pressure control needle having slots machined into it for the purpose of establishing minimum flow when the pressure control needle is fully seated in the ball cap seating surface.
Dependencies are inferred from the claim text.