Method for inhibiting the formation of gas hydrates

Details Method for inhibiting the formation of gas hydrates Method for inhibiting the formation of gas hydrates

1999-12-01

2000-07-25

Woodward, Ana

Chemistry of hydrocarbon compounds

Hydrate or production thereof

95153, 137 3, 137 13, 585950, C07C 900, C07C 720, B01D 4700

Patent

active

060938633

ABSTRACT:
A composition for preventing or retarding the formation of gas hydrates or for reducing the tendency of gas hydrates to agglomerate, during the transport of a fluid comprising water and a hydrocarbon, through a conduit, comprising, (a) a polymer or copolymer selected from a terpolymer of vinyl pyrrolidone, vinyl caprolactam and an ammonium derivative monomer having from 6 to 12 carbon atoms, selected from the group consisting of dialkyl aminoalkyl methacrylamide, dialkyl dialkenyl ammonium halide and a dialkylamino alkyl acrylate or methacrylate, a copolymer of vinyl pyrrolidone and vinyl caprolactam, and a homopolymer of vinyl caprolactam, and (b) an alcohol containing three to five carbon atoms and one hydroxy group.

REFERENCES:
patent: 5639925 (1997-06-01), Sloan, Jr. et al.
patent: 5723524 (1998-03-01), Cohen et al.
patent: 5874660 (1999-02-01), Colle et al.

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