Patent ID: 7662970
Filing Date: 2010-02-16
Classification: C07C,C07D,C09K,C10L

Abstract:
1. A method for inhibiting formation of hydrates comprising contacting a fluid including a mixture comprising water and hydrate-forming guest molecules at gas hydrate forming conditions with an amount of a mixture of oxazolidinium compounds effective to inhibit formation of hydrocarbon hydrates at the gas hydrate forming conditions, where the mixture of oxazolidinium compounds is prepared by a method comprising reacting an aldehyde and/or a ketone with a secondary amine and a reactant selected from the group consisting of a halohydrin and an epoxide, under reaction conditions sufficient to produce the mixture of oxazolidinium compounds, where the hydrate-forming guest molecules are selected from the group consisting of methane, ethane, ethylene, acetylene, propane, propylene, methylacetylene, n-butane, isobutane, 1-butene, trans-2-butene, cis-2-butene, isobutene, butene mixtures, isopentane, pentenes, natural gas, carbon dioxide, hydrogen sulfide, nitrogen, oxygen, argon, krypton, xenon, and mixtures thereof.