Conversion of light olefins to gasoline using low-temperature catalyst regeneration
This patent describes a fluidized bed catalytic process for conversion of light olefinic gas feedstock. It comprises: maintaining a fluidized bed of zeolite catalyst particles in a turbulent reactor bed at a temperature of about 315{sup 0} to 510{sup 0}C; passing hot feedstock vapor upwardly through the fluidized catalyst bed whereby the catalyst is deactivated; maintaining turbulent fluidized bed conditions through the reactor bed; recovering hydrocarbon product containing a major amount of C{sub 4}+ hydrocarbons and containing propane and propene in the ratio of about 0.2:1 to 5:1 in the substantial absence of added feedstock propane; withdrawing at least a portion of the deactivated catalyst from the reactor bed; maintaining a fluidized bed of deactivated catalyst in a turbulent regenerator bed; passing oxygen-containing gas upwardly through the fluidized bed or deactivated catalyst at a rate sufficient to maintain the catalyst in a state of turbulent fluidization whereby the deactivated catalyst is regenerated; withdrawing regenerated catalyst from the regenerator bed; and returning the regenerated catalyst to the reactor bed.
- Assignee:
- Mobil Oil Corp., New York, NY
- Patent Number(s):
- US 4873389
- Application Number:
- PPN: US 7228147A
- OSTI ID:
- 7014270
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020400* -- Petroleum-- Processing
ALKENES
CATALYTIC CRACKING
CHEMICAL REACTIONS
CHEMICAL REACTORS
CRACKING
DECOMPOSITION
FLUIDIZED BEDS
FUELS
GASOLINE
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
LIQUID FUELS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PRODUCTION
PYROLYSIS
THERMOCHEMICAL PROCESSES
ZEOLITES