Transportation of waxy hydrocarbon mixture as a slurry

Details Transportation of waxy hydrocarbon mixture as a slurry Transportation of waxy hydrocarbon mixture as a slurry

1978-08-25

1980-05-27

Cohan, Alan

Fluid handling

Processes

Affecting flow by the addition of material or energy

208 37, 208 93, 264 9, 406197, F17D 116

Patent

active

RE0302813

ABSTRACT:
Hydrocarbon mixtures containing 1-80% wax, e.g. shale oil, can be transported in a pipeline by distilling the mixture into an overheads fraction and a bottoms fraction, cooling the overheads fraction to a temperature above its pour point, but to a temperature sufficiently low so that when it is admixed with the bottoms fraction, the composite temperature of the mixture will be at or below the temperature at which the mixture is to be transported, and admixing the overheads fraction with the bottoms fraction (at a temperature above that at which wax crystals form) while imparting to the mixture a shear rate less than about 20 sec.sup.-1 to form a pumpable slurry. The slurry is preferably transported in a pipeline at conventional temperatures.

REFERENCES:
patent: 3846279 (1974-11-01), Merrill

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