| 主权项 |
1. A method for inhibiting the plugging of a conduit containing a flowable mixture comprising at least an amount of hydrocarbons capable of forming hydrates in the presence of water and an amount of water, which method comprises adding to the mixture an amount of a functionalized dendrimer effective to inhibit formation and/or accumulation of hydrates in the mixture at conduit temperatures and pressures, wherein the functionalized dendrimer has a cloud point of at least 50° C. in a salt composition comprising 140 g of sodium chloride, 30 g of calcium chloride.6H2O, 8 g magnesium chloride.6H2O, and 1 liter of demineralized water, wherein the pH of the salt composition has been adjusted to 4 with a 0.1 M hydrochloric acid solution; and flowing the mixture containing the functionalized dendrimer and any hydrates through the conduit wherein the functionalized dendrimer comprises at least one ammonium functional end group. |
