Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural serial stages of chemical conversion
Patent
1987-10-28
1989-04-04
Caldarola, Glenn
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Plural serial stages of chemical conversion
208 51, 208 57, 2082625, 208226, 208 84, 585469, C10G 6906
Patent
active
048183687
ABSTRACT:
A process for treating a temperature-sensitive hydrocarbonaceous stream containing a non-distillable component to produce a hydrogenated distillable hydrocarbonaceous product while minimizing thermal degradation of the hydrocarbonaceous stream which process comprises the steps of: (a) contacting the hydrocarbonaceous stream with a first hydrogen-rich gaseous stream having a temperature greater than the hydrocarbonaceous stream in a flash zone at flash conditions thereby increasing the temperature of the hydrocarbonaceous stream and vaporizing at least a portion thereof to provide a hydrocarbonaceous vapor stream comprising hydrogen and a heavy stream comprising the non-distillable component; (b) contacting the hydrocarbonaceous vapor stream comprising hydrogen with a hydrogenation catalyst in a hydrogenation reaction zone at hydrogenation conditions to increase the hydrogen content of the hydrocarbonaceous compounds contained in the hydrocarbonaceous vapor stream; (c) condensing at least a portion of the resulting effluent from the hydrogenation reaction zone to provide a second hydrogen-rich gaseous stream and a liquid stream comprising hydrogenated distillable hydrocarbonaceous compounds; (d) recovering a hydrogenated distillable hydrocarbonaceous product from the liquid stream comprising hydrogenated distillable hydrocarbonaceous compounds; and (e) reacting at least a portion of the heavy stream comprising the non-distillable component recovered from step (a) in a thermal coking zone at thermal coking conditions to provide a thermal coking zone effluent.
REFERENCES:
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patent: 3992285 (1976-11-01), Hutchings
patent: 4075084 (1978-02-01), Skripek et al.
patent: 4127393 (1978-11-01), Timmins et al.
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patent: 4481101 (1984-11-01), Yan
James, Jr. Robert B.
Kalnes Tom N.
Staggs Darrell W.
Caldarola Glenn
Cutts, Jr. John G.
McBride Thomas K.
Tolomei John G.
UOP Inc.
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