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US 10,472,301 B2Granted
Catalytic systems and methods for process stream treatment
AssigneeSiemens Energy, Inc.
InventorsChad L. Felch, Matthew R. Patterson, Bryan J. Kumfer
Life of this patent
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Abstract
Catalytic systems and methods for treating process streams are disclosed. Catalytic wet oxidation and hydrolysis techniques may be used to treat one or more undesirable constituents. Methane may be produced in connection with at least some embodiments.
Claims17
A method of producing methane comprising:
- contacting an aqueous fluid comprising at least one organic compound comprising at least one of a kinetic hydrate inhibitor and a hydrolyzed polyacrylamide with a heterogeneous catalyst at a pressure from about 20 atm to about 240 atm and a temperature from about 150° C. to about 373° C. to hydrolyze the at least one organic compound in the fluid and generate an amount of methane,
- wherein the heterogeneous catalyst comprises a member selected from the group consisting of ruthenium, nickel, cobalt, iron, and combinations thereof, and a solid support selected from the group consisting of alumina, silica, and a carbide.
A method of producing methane comprising:
- introducing a produced water comprising a chemical oxygen demand comprising at least one of a kinetic hydrate inhibitor and a hydrolyzed polyacrylamide to a treatment vessel;
- subjecting the produced water to a pressure from about 20 atm to about 240 atm in or upstream of the treatment vessel;
- subjecting the produced water to a temperature from about 150° C. to about 373° C. in or upstream of the treatment vessel;
- introducing a heterogeneous catalyst to the produced water in or upstream of the treatment vessel to promote methane formation, wherein the heterogeneous catalyst comprises a member selected from the group consisting of ruthenium, nickel, cobalt, iron, and combinations thereof, and a solid support selected from the group consisting of alumina, silica, and a carbide;
- and
- capturing the formed methane.
3 more elements
A method of producing methane comprising:
- subjecting an aqueous fluid comprising at least one organic compound comprising at least one of a kinetic hydrate inhibitor and a hydrolyzed polyacrylamide to catalytic conditions effective to hydrolyze the at least one organic compound in the fluid and generate an amount of methane.
Dependencies are inferred from the claim text.