Conversion of oxygenate to olefins with staged injection of...

Details Conversion of oxygenate to olefins with staged injection of... Conversion of oxygenate to olefins with staged injection of...

2007-06-19

2007-06-19

Dang, Thuan Dinh (Department: 1764)

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

From nonhydrocarbon feed

C585S639000, C585S638000

Reexamination Certificate

active

09507838

ABSTRACT:
A system and process for producing olefins from oxygenate, e.g., methanol or dimethylether, includes a fluidized bed reaction zone that provide contact between the oxygenate and a molecular sieve catalyst such as ZSM-34 or SAPO-34. Improved ethylene selectivity is realized when the oxygenate is stagewise injected into the fluidized bed at one or more locations along the axial direction of the fluidized bed reaction zone.

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Keim, K. H., et al. “The Methanol-to-Gasoline(MTG)Process: Status Report on 100 BPD Fluid Bed Pilot Plant”,C-16, pp. 2-160 through 2-166.

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