Process for hydroprocessing heavy hydrocarbon feedstocks in a pipe reactor
A process for the hydroprocessing of a heavy petroleum hydrocarbon fraction in a system employing a pipe reactor, comprises heating said hydrocarbon fraction to a temperature of at least 600/sup 0/F to obtain a preheated heavy hydrocarbon fraction the preheated heavy hydrocarbon fraction is introduced into the bottom zone of a vapor-liquid-catalyst separator having three zones, a top zone where a vapor is separated from liquid and catalyst, said vapor, said liquid, and said catalyst having been introduced into said top zone as effluent from said pipe reactor, an intermediate zone where said catalyst separates from said liquid, and a bottom zone wherein said preheated heavy hydrocarbon fraction is introduced into said bottom zone and mixed with said catalyst to form a heavy-hydrocarbon-catalyst slurry. The heavy-hydrocarbon-catalyst slurry is withdrawn from the bottom of said bottom zone and heated to a temperature of at least 700/sup 0/F to obtain a heated heavy-hydrocarbon-catalyst slurry which is passed through said pipe reactor in the presence of hydrogen under conditions suitable for the hydroprocessing of heavy petroleum hydrocarbons, including a temperature of about 600 to about 1000/sup 0/F, and a hydrogen partial pressure of about 300 psia to about 3000 psia. The temperature in said pipe reactor is controlled by a ans for temperature control, the effluent withdrawn from the reactor and passed into top zone of vapor-liquid-catalyst separator withdrawing vapor product from said top zone of said vapor-liquid-catalyst separator; withdrawing liquid product from said intermediate zone, and obtaining usable products from said vapor product and said liquid product, said catalyst being suitable for the hydroprocessing of heavy petroleum hydrocarbons.
- Assignee:
- Standard Oil Company
- Patent Number(s):
- US 3933620
- OSTI ID:
- 5230483
- Resource Relation:
- Patent File Date: Filed date 16 Aug 1973
- Country of Publication:
- United States
- Language:
- English
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