Patent ID: 6201163
Filing Date: 2001-03-13
Classification: F17D,Y10T

Abstract:
A method of transporting natural gas by pipeline, which comprises:(a) adding to such natural gas sufficient of at least one C.sub.2 or C.sub.3 hydrocarbon or a mixture of C.sub.2 and C.sub.3 hydrocarbons so the added hydrocarbon forms a resulting mixture with the natural gas having a total C.sub.2 and C.sub.3 hydrocarbon content which is sufficient, at the pressure and temperature to be used for transporting, to reduce the product of the z factor and the average molecular weight of the resulting mixture to a level lower than that of the untreated natural gas, and(b) transporting such resulting mixture by pipeline at a temperature of between -40.degree. and +120.degree. Fahrenheit and pressure of from 2160 psia to 1150 psia, said pressure and temperature being chosen so the resulting mixture has no liquid phase at the temperature and pressure of transmission.