Inventors:
Nicolas Coute - Houston TX, US
Jeffrey S. Smith - Texas City TX, US
Michael Peter Nicoletti - Houston TX, US
Charles O. Bolthrunis - Nahant MA, US
Domenic C. Ferrari - Lexington MA, US
Umesh K. Jayaswal - Lexington MA, US
Roy Walter Silverman - Winchester MA, US
Assignee:
ExxonMobil Chemical Patents Inc. - Houston TX
International Classification:
C07C 1/00
B01J 19/00
B01J 8/18
US Classification:
585639, 585327, 585328, 585329, 585638, 585640, 422 49, 422131, 422139, 422145, 422149
Abstract:
The invention concerns methods and systems for minimizing back-mixing of feedstock flow in converting oxygenates to olefins. In one embodiment, back-mixing is reduced by providing a reactor that includes baffles to reduce the hydraulic diameter of at least a portion of the reactor. Some or all of the baffles can also serve as cooling tubes for reducing temperature gradients in the reactor, and thereby maximize light olefin production.
