Process for treating a temperature sensitive hydrocarbonaceous s

Details Process for treating a temperature sensitive hydrocarbonaceous s Process for treating a temperature sensitive hydrocarbonaceous s

1990-10-09

1992-04-07

Davis, Curtis R.

Mineral oils: processes and products

Fractionation

Distillation

208184, 208185, 208362, B01D 306

Patent

active

051025310

ABSTRACT:
A process for treating a hydrocarbonaceous feed stream containing a non-distillable component to produce a distillable hydrocarbonaceous product and a heavy product comprising the non-distillable component while minimizing thermal degradation of the hydrocarbonaceous feed stream which process comprises the steps of: (a) contacting the hydrocarbonaceous feed stream with a hot first hydrogen-rich gaseous stream having a temperature greater than the hydrocarbonaceous feed stream in a flash zone at flash conditions without indirect heat exchange thereby increasing the temperature of the hydrocarbonaceous feed stream and vaporizing at least a portion thereof to provide a hydrocarbonaceous vapor stream comprising hydrogen and a heavy product comprising the non-distillable component; (b) removing the hydrocarbonaceous vapor stream comprising hydrogen from the flash zone without contacting the vapor stream with hydrocarbonaceous liquid; (c) condensing at least a portion of the hydrocarbonaceous vapor stream comprising hydrogen to provide a second hydrogen-rich gaseous stream and a liquid stream comprising distillable hydrocarbonaceous compounds; and (d) recovering a distillable hydrocarbonaceous product from the liquid stream comprising distillable hydrocarbonaceous compounds.

REFERENCES:
patent: 2992285 (1976-11-01), Hutchings
patent: 4127393 (1978-11-01), Timmins et al.
patent: 4481101 (1984-11-01), Yan
patent: 4882037 (1989-11-01), Kalnes et al.

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