A method for preventing or retarding the formation of gas...

C - Chemistry – Metallurgy – 07 – C

Patent

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C07C 7/20 (2006.01) C10L 10/00 (2006.01)

Patent

CA 2351431

A composition is provided herein 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. The composition is a homopolymer of vinyl caprolactam having the low molecular weight in the range of 500 to 2500, or copolymers thereof, in a defined solvent. Such homopolymers and copolymers preferably are made and applied in the defined solvent, which, most preferably, is a glycol ether such as 2-butoxyethanol.

L'invention concerne une composition permettant d'empêcher ou de retarder la formation d'hydrates de gaz ou de réduire la tendance des hydrates de gaz à s'agglomérer pendant le transport dans une canalisation d'un fluide contenant de l'eau et un hydrocarbure. Ladite composition est un homopolymère de caprolactame de vinyle présentant un faible poids moléculaire compris entre 500 et 2500, ou des copolymères de caprolactame de vinyle, dans un solvant défini. De préférence, ces homopolymères et ces copolymères sont fabriqués et appliqués dans ledit solvant défini, lequel, idéalement, est un éther glycolique tel que du 2-butoxyéthanol.

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