Process for treating a temperature-sensitive hydrocarbonaceous stream containing a non-distillable component to produce a hydrogenated distillable hydrocarbonaceous product

A process for treating a temperature-sensitive hydrocarbonaceous stream containing a non-distillable component to produce a hydrogenated distillable hydrocarbonaceous product and a heavy product comprising said non-distillable component while minimizing thermal degradation of said hydrocarbonaceous stream which process comprises the steps of:

• (a) contacting said hydrocarbonaceous stream with a first hydrogen-rich gaseous stream having a temperature greater than said hydrocarbonaceous stream in a flash zone at flash conditions thereby increasing the temperature of said hydrocarbonaceous stream with minimal thermal degradation and vaporizing at least a portion thereof to provide a hydrocarbonaceous vapor stream comprising hydrogen and a heavy product comprising said non-distillable component;
• (b) contacting said hydrocarbonaceous vapor stream comprising hydrogen recovered from step (a) without intermediate separation with a hydrogenation catalyst in a hydrogenation reaction zone at hydrogenation conditions to increase the hydrogen content of the hydrocarbonaceous compounds contained in said hydrocarbonaceous vapor stream;
• (c) condensing at least a portion of the resulting effluent from said hydrogenation reaction zone to provide a second hydrogen-rich gaseous stream and a first liquid stream comprising hydrogenated distillable hydrocarbonaceous compounds;
• and
• (d) separating said first liquid stream comprising hydrogenated distillable hydrocarbonaceous compounds to provide a second hydrocarbonaceous vapor stream comprising normally gaseous hydrocarbons and a normally liquid hydrogenated distillable hydrocarbonaceous product.

A process for treating a temperature-sensitive hydrocarbonaceous stream containing a non-distillable component to produce a hydrogenated distillable hydrocarbonaceous product and a heavy product comprising said non-distillable component while minimizing thermal degradation of said hydrocarbonaceous stream which process comprises the steps of:

• (a) contacting said hydrocarbonaceous stream with a first hydrogen-rich gaseous stream having a temperature greater than said hydrocarbonaceous stream in a flash zone at flash conditions thereby increasing the temperature of said hydrocarbonaceous stream with minimal degradation and vaporizing at least a portion thereof to provide a hydrocarbonaceous vapor stream comprising hydrogen and a heavy product comprising said non-distillable component;
• (b) contacting said hydrocarbonaceous vapor stream comprising hydrogen recovered from step (a) without intermediate separation with a hydrogenation catalyst in a hydrogenation reaction zone at hydrogenation conditions to simultaneously increase the hydrogen content of the hydrocarbonaceous compounds contained in said hydrocarbonaceous vapor stream and to generate at least one water-soluble inorganic compound produced from the reaction of said hydrocarbonaceous compounds and said hydrogen;
• (c) contacting the resulting effluent from said hydrogenation zone containing hydrogenated hydrocarbonaceous compounds and at least one water-soluble inorganic compound with a fresh aqueous scrubbing solution;
• (d) introducing a resulting admixture of said effluent from said hydrogenation zone and said aqueous scrubbing solution into a separation zone to provide a second hydrogen-rich gaseous stream, a first liquid stream comprising hydrogenated distillable hydrocarbonaceous compounds and a spent aqueous scrubbing solution containing at least a portion of said water-soluble inorganic compound;
• and
• (e) separating said first liquid stream comprising hydrogenated distillable hydrocarbonaceous compounds to provide a second hydrocarbonaceous vapor stream comprising normally gaseous hydrocarbons and a normally liquid hydrogenated distillable hydrocarbonaceous product.