Process for regenerating spent heavy hydrocarbon hydroprocessing catalyst
This patent describes a process for hydroprocessing a hydrocarbon feedstock which comprises contacting the feedstock with hydrogen under hydroprocessing conditions with a hydroprocessing catalyst wherein the hydroprocessing catalyst is a regenerated spent hydroprocessing catalyst regenerated by a process. It comprises partially decoking the spent catalyst in an initial coke-burning step wherein the catalyst is contacted with an oxygen-containing gas at a temperature ranging from about 400{degrees} F. to about 700{degrees} F.; incorporating at least one rare earth metal with the partially decoked catalyst, such that the partially decoked catalyst contains from about 0.1 to about 20.0 wt. % of the rare earth metal component calculated as the elemental metal and based on the fresh weight of the spent catalyst; and decoking the rare earth metal-containing catalyst in a final coke-burning step wherein the rare earth metal-containing is contacted with an oxygen-containing gas at a temperature of about 600{degrees} F. to about 1400{degrees} F.
- Assignee:
- Amoco Corp., Chicago, IL (United States)
- Patent Number(s):
- A; US 5071538
- Application Number:
- PPN: US 7-597012
- OSTI ID:
- 5607567
- Country of Publication:
- United States
- Language:
- English
Similar Records
Hydroprocessing using regenerated spent heavy hydrocarbon catalyst
Process for regenerating spent heavy hydrocarbon hydroprocessing catalyst
Related Subjects
010409* -- Coal
Lignite
& Peat-- Pyrolysis & Carbonization-- (1987-)
CARBONIZATION
CATALYSTS
CHEMICAL REACTIONS
COKING
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
FUELS
HYDROCARBONS
HYDROGENATION
MATERIALS
METALS
NONMETALS
NUCLEAR FUELS
ORGANIC COMPOUNDS
OXYGEN
RARE EARTHS
REACTOR MATERIALS
REGENERATION
SPENT FUELS
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K