US2026015739A1PendingUtilityA1
Corrosion inhibitor compositions and methods of using the compositions to inhibit corrosion
Est. expiryJul 10, 2044(~17.9 yrs left)· nominal 20-yr term from priority
Inventors:MOLONEY JEREMY
C23F 11/162C09K 2208/32C23F 11/161C02F 2303/08C02F 5/10C09K 8/54C23F 11/173C23F 11/10
64
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Claims
Abstract
Compositions and methods for inhibiting corrosion of metal surfaces are disclosed herein. Also disclosed are metal surfaces coated or partially coated with the compounds, compositions, and/or components of the present disclosure. The corrosion inhibitor compositions may include corrosion inhibitor compounds having the structure of Formula I. The compositions may include other corrosion inhibitors and/or additional components, such as a solvent, a scale inhibitor, or a biocide.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A method of inhibiting corrosion of a metal surface in contact with a medium, comprising:
adding an effective amount of a composition to the medium, wherein the composition comprises a corrosion inhibitor compound comprising a structure of Formula I, or an isomer thereof:
wherein R is selected from the group consisting of H, OH, (CH 2 ) n COOH, a C 1 -C 40 alkyl group, a C 1 -C 40 alkenyl group, and a C 1 -C 40 alkynyl group, wherein n is an integer selected from 0-100.
2 . The method of claim 1 , wherein the effective amount is from about 1 ppm to about 50,000 ppm.
3 . The method of claim 1 , wherein the medium comprises produced water, fresh water, seawater, municipal water, brackish water, recycled water, salt water, surface water, condensed water, cooling water, injection water, waste water, geothermal water, sewage water, nuclear cooling water, ground water, connate, carbon dioxide, hydrogen, or any mixture thereof.
4 . The method of claim 1 , wherein the metal surface comprises steel.
5 . The method of claim 1 , wherein the corrosion inhibitor compound comprises
6 . The method of claim 1 , further comprising adding an effective amount of a component to the medium, wherein the component is selected from the group consisting of a fouling control agent, an additional corrosion inhibitor, a corrosion inhibitor intensifier, a biocide, a preservative, an acid, an anti-emulsifier, an iron chelating agent, a hydrogen sulfide scavenger, a surfactant, an asphaltene inhibitor, a paraffin inhibitor, a scale inhibitor, a gas hydrate inhibitor, a pH modifier, an emulsion breaker, a reverse emulsion breaker, a coagulant/flocculant agent, an emulsifier, a water clarifier, a dispersant, an antioxidant, a polymer degradation prevention agent, a permeability modifier, a foaming agent, an antifoaming agent, a CO 2 scavenger, an O 2 scavenger, a gelling agent, a lubricant, a friction reducing agent, a salt, a clay stabilizer, a bactericide, a salt substitute, a relative permeability modifier, a breaker, a fluid loss control additive, an iron control agent, a drag reducing agent, a flow improver, a viscosity reducer, and any combination thereof.
7 . The method of claim 6 , wherein the component is added before, after, and/or with the composition.
8 . The method of claim 1 , wherein the composition comprises a solvent selected from the group consisting of water, a C 1 -C 6 alkanol, a C 1 -C 6 alkoxyalkanol, an alcohol, a glycol ether, a hydrocarbon, a ketone, an ether, an alkylene glycol, an amide, a nitrile, a sulfoxide, an ester, and any combination thereof.
9 . The method of claim 1 , wherein the composition comprises from about 0.5 wt. % to about 100 wt. % of the corrosion inhibitor compound.
10 . The method of claim 6 , wherein the composition consists essentially of the corrosion inhibitor compound and the component.
11 . The method of claim 6 , wherein the composition consists essentially of the corrosion inhibitor compound, the component, and a solvent.
12 . The method of claim 8 , wherein the composition consists essentially of the corrosion inhibitor compound and the solvent.
13 . A composition, comprising:
a corrosion inhibitor compound having a structure of Formula I, or an isomer thereof:
wherein R is selected from the group consisting of H, OH, (CH 2 ) n COOH, a C 1 -C 40 alkyl group, a C 1 -C 40 alkenyl group, and a C 1 -C 40 alkynyl group, wherein n is an integer selected from 0-100.
14 . The composition of claim 13 , wherein the corrosion inhibitor compound comprises
15 . The composition of claim 13 , further comprising a solvent selected from the group consisting of water, a C 1 -C 6 alkanol, a C 1 -C 6 alkoxyalkanol, an alcohol, a glycol ether, a hydrocarbon, a ketone, an ether, an alkylene glycol, an amide, a nitrile, a sulfoxide, an ester, and any combination thereof.
16 . The composition of claim 13 , further comprising a component selected from the group consisting of a fouling control agent, an additional corrosion inhibitor, a corrosion inhibitor intensifier, a biocide, a preservative, an acid, an anti-emulsifier, an iron chelating agent, a hydrogen sulfide scavenger, a surfactant, an asphaltene inhibitor, a paraffin inhibitor, a scale inhibitor, a gas hydrate inhibitor, a pH modifier, an emulsion breaker, a reverse emulsion breaker, a coagulant/flocculant agent, an emulsifier, a water clarifier, a dispersant, an antioxidant, a polymer degradation prevention agent, a permeability modifier, a foaming agent, an antifoaming agent, a CO 2 scavenger, an O 2 scavenger, a gelling agent, a lubricant, a friction reducing agent, a salt, a clay stabilizer, a bactericide, a salt substitute, a relative permeability modifier, a breaker, a fluid loss control additive, an iron control agent, a drag reducing agent, a flow improver, a viscosity reducer, and any combination thereof.
17 . The composition of claim 16 , wherein the composition consists essentially of the corrosion inhibitor compound and the component.
18 . The composition of claim 16 , wherein the composition consists essentially of the corrosion inhibitor compound, the component, and a solvent.
19 . The composition of claim 15 , wherein the composition consists essentially of the corrosion inhibitor compound and the solvent.
20 . A metal surface comprising a corrosion inhibitor compound having a structure of Formula I, or an isomer thereof:
wherein R is selected from the group consisting of H, OH, (CH 2 ) n COOH, a C 1 -C 40 alkyl group, a C 1 -C 40 alkenyl group, and a C 1 -C 40 alkynyl group, wherein n is an integer selected from 0-100.Join the waitlist — get patent alerts
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