| 摘要 |
Waxy liquid hydrocarbons can be dewaxed employing autorefrigerative dewaxing solvents such as C2-C4 aliphatic hydrocarbon solvents, preferably propane, propylene, butane, butylene, and mixtures thereof, by using a centrifuge (3) as the dewaxing containment vessel. The centrifugal force generated by the rotation of the centrifuge creates a pressure gradient that permits the dewaxing solvent in the dewaxing solvent-waxy oil solution to gradually vaporize on a continuous basis thereby cooling the solution by autorefrigeration, resulting in the crystallization of wax from the hydrocarbon. |
