Quench oil viscosity control in pyrolysis fractionator

Details Quench oil viscosity control in pyrolysis fractionator Quench oil viscosity control in pyrolysis fractionator

1997-10-27

1999-03-02

Caldarola, Glenn A.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By c content reduction, e.g., cracking, etc.

585648, 585802, 585809, 208353, 208102, 203 1, C07C 402, C10G 900, B01D 300

Patent

active

058773800

ABSTRACT:
The viscosity of quench oil circulated in a pyrolysis fractionation unit is controlled by contacting pyrolysis furnace effluent with a slip stream of 0.1-0.5 kg/kg of the quench oil, separating the resulting vapor-liquid mixture to remove tarry liquid, and feeding the remaining vapor to the fractionator. Removing the tarry liquid from the fractionator feed in this manner allows operation of the fractionator with less reflux, a higher bottoms temperature, and more heat recovery at a higher temperature.

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