초록 ▼

An improvement in the method of transporting viscous hydrocarbons through pipes is disclosed. Briefly, the method comprises adding water containing an effective amount of a combination of (a) a sodium or ammonium salt of an ethoxylated alcohol sulfate and (b) a surfactant selected from the group con

An improvement in the method of transporting viscous hydrocarbons through pipes is disclosed. Briefly, the method comprises adding water containing an effective amount of a combination of (a) a sodium or ammonium salt of an ethoxylated alcohol sulfate and (b) a surfactant selected from the group consisting of certain polyoxyethylene-polyoxypropylene block polymers and certain oxyethylated alcohols. The resulting oil-in-water emulsion has a lower viscosity and is more easily transported.

대표청구항 ▼

In the method of transporting a viscous hydrocarbon through a pipe the improvement which comprises forming an oil-in-water emulsion by adding to said hydrocarbon from about 20 to about 80 volume percent of an aqueous solution containing an effective amount of a combination of (a) about 25 to about 2

In the method of transporting a viscous hydrocarbon through a pipe the improvement which comprises forming an oil-in-water emulsion by adding to said hydrocarbon from about 20 to about 80 volume percent of an aqueous solution containing an effective amount of a combination of (a) about 25 to about 20,000 parts per million, based on said hydrocarbon, of a salt of an ethoxylated alcohol sulfate which is represented by the formula [CH3(CH2)xCH2(OCH2CH2)nOSO3]M wherein x is an integer in the range of about 10 to about 16, n is a number in the range of about 3 to 12, and M is sodium or ammonium, and (b) about 50 to about 20,000 parts per million of a second surfactant selected from the group consisting of (i) materials represented by the formula [Figure] a and c are numbers in the range of 2 to 10, with the sum of a and c being in the range of 4 to 20, and b is a number in the range of 6 to 30, (ii) materials represented by the formula [Figure] a and c are numbers in the range of 3 to 15, with the sum of a and c being in the range of 6 to 30, and b is a number in the range of 4 to 20, and (iii) materials represented by the formula [Figure] R is a linear alkyl group containing 10 to 18 carbon atoms, a is a number in the range of 6 to 30 and b is a number in the range of 4 to 20.