| 摘要 |
"Waxy" hydrocarbon mixtures are transported, e.g., in a pipeline, by fractionating the mixture into at least a relatively low pour point fraction and a relatively high pour point fraction, congealing the high pour point fraction by introducing and dispersing it through nozzles into the bottom of a water column having a highly saline solution in the bottom thereof, the saline solution is 5 DEG -50 DEG F. below the temperature of the high pour point fraction, permitting the particles of the dispersed fraction to float up through the column where they come in contact with water at a sufficiently low temperature to substantially solidify the particles, and thereafter separating the congealed particles and slurrying them in at least a portion of the low pour point fraction and transporting the slurry. The hot saline solution, e.g., an aqueous potassium alum solution, is preferably at saturation conditions and the water above the hot saline solution is at least 80 DEG F. less than the average temperature of the saline solution and less than the pour point of the high pour point fraction. |
