External second stage cyclones in olefin production process

Details External second stage cyclones in olefin production process External second stage cyclones in olefin production process

2007-04-24

2007-04-24

Bullock, In Suk (Department: 1764)

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

From nonhydrocarbon feed

C422S147000

Reexamination Certificate

active

11236477

ABSTRACT:
The present invention comprises a process and apparatus for producing olefins from oxygenates in a reactor. This process comprises these oxygenates with a catalyst to produce a gaseous mixture comprising light olefins and by-products, sending the mixture to a single stage cyclone within said reactor to separate said catalyst from said gaseous mixture and then sending said the to a second stage cyclone. The second stage cyclone is located outside of said reactor and it functions to remove the catalyst from the mixture. Then the catalyst can be returned to the reactor after having been treated in a regeneration zone to remove carbonaceous deposits from the catalyst.

REFERENCES:
patent: 4440871 (1984-04-01), Lok et al.
patent: 4873390 (1989-10-01), Lewis et al.
patent: 5095163 (1992-03-01), Barger
patent: 5126308 (1992-06-01), Barger et al.
patent: 5191141 (1993-03-01), Barger et al.
patent: 5744680 (1998-04-01), Mulvaney, III et al.
patent: 6166282 (2000-12-01), Miller
patent: 6403854 (2002-06-01), Miller et al.
patent: 1 538 874 (1979-01-01), None
Chemical Engineers' Handbook, 5thEdition, pp. 20-69 to 20-70, McGraw-Hlll Book Company, 1973.

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