METHOD FOR CONVERTING AN OXYGENATE FEED TO AN OLEFIN PRODUCT

The invention provides a method of making ethylene, propylene, and butylene by contacting a molecular sieve catalyst with an oxygenate to convert a portion of the oxygenate to a product containing olefin; separating the catalyst fro m the olefin product and directing a portion of the separated catalyst to a regenerator; contacting, in an alcohol contact zone, the regenerated catalys t with an alcohol selected from methanol, ethanol, 1-propanol, 1-buthanol, or mixtures thereof; and directing the catalyst from the alcohol contact zone t o an oxygenate conversion zone. The relative amounts of ethylene, propylene, a nd butylene produced by the process is in part dependant upon the composition o f the alcohol used to contact the regenerated catalyst.