Liquid inventory control in an ebullated bed process
This patent describes an improvement in a continuous process for treating a fluid hydrocarbon feedstock with a hydrogen-containing gas at elevated catalytic reaction temperatures and pressure in the presence of a bed of particulate solid catalyst. The process comprises introducing the hydrogen-containing gas a feedstock into the lower end of a generally vertical reaction vessel containing catalyst at sufficient velocity whereby the catalyst is placed in random motion within the fluid hydrocarbon and is expanded to a volume greater than its static volume, wherein the mixture of feedstock, gas and catalyst constitutes a turbulent zone, the upper portion of which is defined by a catalyst depleted zone comprising liquid, gas and foam, wherein liquid is recycled from the catalyst depleted zone to the lower end of the turbulent zone.
- Assignee:
- Texaco Inc., White Plains, NY (USA)
- Patent Number(s):
- US 4971678; A
- Application Number:
- PPN: US 7-211750
- OSTI ID:
- 5648240
- Resource Relation:
- Patent File Date: 27 Jun 1988
- Country of Publication:
- United States
- Language:
- English
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