Patent · US Active

Kinetic hydrate inhibitors for controlling gas hydrate formation in wet gas systems

US10899980B2 · kind B2 · utility

0Cited by
1References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 17, 2018
Grant dateJan 26, 2021
Priority date
Expiry dateOct 8, 2038

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC23F11/145
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Polymers are provided for use in inhibiting gas hydrate formation and/or corrosion in hydrocarbon-containing fluids. The polymer comprises repeat units derived from a first monomer comprising N-[3-(dibutylamino)propyl]methacrylamide (DBAPAMA) or an alkyl, acetyl, acryloyl or benzyl quaternary salt thereof, N-[3-(diisobutyl)propyl]methacrylamide or an alkyl, acetyl, acryloyl or benzyl quaternary salt thereof, N-[3-(diisopentyl)propyl]methacrylamide or an alkyl, acetyl, acryloyl or benzyl quaternary salt thereof, or a combination thereof; and repeat units derived from a second monomer comprising acrylamide, N-alkylacrylamide, N-alkyl (alkyl)acrylamide, ((dialkylamino)alkyl)acrylamide or an alkyl or benzyl quaternary salt thereof, ((dialkylamino)alkyl)alkylacrylamide or an alkyl or benzyl quaternary salt thereof, acrylic acid, alkyl acrylate, N,N-(dialkylamino)alkyl acrylate or an alkyl or benzyl quaternary salt thereof, N,N-(dialkylamino)alkyl (alkyl)acrylate or an alkyl or benzyl quaternary salt thereof, hydroxyalkyl acrylate, hydroxyalkyl (alkyl)acrylate, acrylamido alkyl sulfonic acid or a salt thereof, a diallyl dialkyl quaternary ammonium salt, or a combination thereof. The seco…

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.