Fluidized bed process for upgrading diene-containing light olefins
This patent describes a fluidized bed catalytic process for upgrading diene-rich liquid olefinic feedstock comprising at least 1 wt. % diene and a total C/sub 4/-C/sub 6/ olefin content of about 5 to 90 wt. % to produce hydrocarbons rich in C5+ aliphatics and aromatics. It comprises the steps of: maintaining a fluidized bed of zeolite catalyst particles in a turbulent reactor bed at a temperature of about 220{sup 0} to 510{sup 0}C; feeding the olefinic feedstock as a pressurized liquid into a bottom portion of the fluidized bed; dispersing and vaporizing the liquid feedstock in the fluidized bed; passing vaporized hot feedstock upwardly through the fluidized catalyst bed under turbulent flow conditions; maintaining turbulent fluidized bed conditions through the reactor bed between transition velocity and transport velocity at a superficial fluid velocity of about 0.3 to 2 meters per second; and recovering hydrocarbon product containing a major amount of C/sub 4//sup +/ hydrocarbons and containing C/sub 3/-C/sub 5/ alkanes an alkenes in the weight ratio of about 0.2:1 to 200:1.
- Assignee:
- Mobil Oil Corp., New York, NY
- Patent Number(s):
- US 4855521
- Application Number:
- PPN: US 7186526A
- OSTI ID:
- 5451318
- Country of Publication:
- United States
- Language:
- English
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