Process for reducing the agglomeration tendency of hydrates in t

Details Process for reducing the agglomeration tendency of hydrates in t Process for reducing the agglomeration tendency of hydrates in t

1993-10-22

1995-06-20

Pal, Asok

Chemistry of hydrocarbon compounds

Hydrate or production thereof

208188, C07C 720, C10G 3304

Patent

active

054262585

ABSTRACT:
A description is given of a process for reducing the agglomeration tendency of hydrates within a fluid incorporating at least water and hydrocarbons, liable to form hydrates, under conditions where said hydrates may form, characterized in that into said fluid is incorporated an alkylene oxide-based hydrosoluble polymer or copolymer containing at least one --(OR)--.sub.n sequence, in which R represents a hydrocarbon group having 2 or 3 carbon atoms and n represents the average degree of polymerization of said sequence, at least one of the --(OR)--.sub.n sequences being an ethylene polyoxide sequence, associated with a thermodynamic inhibitor of the formation of hydrates, e.g. an alcohol or a glycol. This process is particularly appropriate for the case where the fluid to be treated contains a high proportion of water, e.g. more than 30% by weight. The presence of salts in the water can at least partly dispense with the addition of alcohols or glycols.

REFERENCES:
patent: 2978026 (1961-04-01), Bemis
patent: 2979528 (1961-04-01), Lundsted
patent: 3185217 (1965-05-01), Brooks, Jr. et al.
patent: 4973775 (1990-11-01), Sugier et al.
Chemical Abstracts, vol. 106, No. 16, Apr. 1987, p. 190, col. 2 (abstract of SU-A-2, 965,596 to Kuliev et al.).

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