Alkyl lactone-derived corrosion inhibitors
US-2020017754-A1 · Jan 16, 2020 · US
Alkyl lactone-derived hydroxyamides and alkyl lactone-derived hydroxyesters for the control of natural gas hydrates
US11414588B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11414588-B2 |
| Application number | US-201916507873-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 10, 2019 |
| Priority date | Jul 12, 2018 |
| Publication date | Aug 16, 2022 |
| Grant date | Aug 16, 2022 |
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- Title
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Abstract
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Disclosed are alkyl lactone-derived hydroxyamides and alkyl lactone-derived hydroxyesters used in compositions and methods for inhibiting natural gas hydrate agglomerates. The alkyl lactone-derived hydroxyamides and alkyl lactone-derived hydroxyesters are reaction products of an alkyl lactone and an amine, and an alkyl lactone and an alcohol, respectively.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of inhibiting formation of agglomerates of natural gas hydrates comprising: introducing into a fluid a composition comprising an alkyl lactone-derived hydroxyamide to inhibit formation of agglomerates of natural gas hydrates, the alkyl lactone-derived hydroxyamide formed by a reaction between an alkyl lactone with an amine, wherein the amine comprises a dibutylaminopropylamine, a dibutylaminopropylamine with an additional aminopropylamino moiety, or combination thereof. 2. The method of claim 1 , wherein the fluid is contained in an oil or natural gas production operation or pipeline. 3. The method of claim 1 , wherein the composition further comprises one or more thermodynamic gas hydrate inhibitors, kinetic gas hydrate inhibitors, anti-agglomerants, asphaltene inhibitors, paraffin inhibitors, scale inhibitors, emulsifiers, water clarifiers, dispersants, emulsion breakers, or any combination thereof. 4. The method of claim 1 , wherein the alkyl lactone comprises 1 to 30 carbon atom-containing alkyl substituent. 5. The method of claim 1 , wherein the alkyl lactone comprises a decalactone, dodecalactone or an undecalactone. 6. A method of inhibiting formation of agglomerates of natural gas hydrates comprising: introducing into a fluid a composition comprising an alkyl lactone-derived hydroxyamide to inhibit formation of agglomerates of natural gas hydrates, the alkyl lactone-derived hydroxyamide formed by a reaction between an alkyl lactone with an amine, wherein the alkyl lactone-derived hydroxyamide is selected from
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Classifications
having the nitrogen atom of at least one of the carboxamide groups bound to an acyclic carbon atom of a hydrocarbon radical substituted by nitrogen atoms not being part of nitro or nitroso groups · CPC title
Hydrates inhibition by using well treatment fluids containing inhibitors of hydrate formers · CPC title
Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning · CPC title
with only hydrogen atoms, halogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms · CPC title
of additive or catalyst · CPC title
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- What does patent US11414588B2 cover?
- Disclosed are alkyl lactone-derived hydroxyamides and alkyl lactone-derived hydroxyesters used in compositions and methods for inhibiting natural gas hydrate agglomerates. The alkyl lactone-derived hydroxyamides and alkyl lactone-derived hydroxyesters are reaction products of an alkyl lactone and an amine, and an alkyl lactone and an alcohol, respectively.
- Who is the assignee on this patent?
- Championx Usa Inc
- What technology area does this patent fall under?
- Primary CPC classification C07C235/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 16 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).