Method for gasoline yield enhancement in the fixed bed methanol-to-gasoline process

摘要

Gasoline product yield is enhanced in a fixed bed methanol-to-gasoline process by splitting the conversion reactor into a series of smaller conversion reactors such that the total amount of catalyst normally present in the single conversion reactor is present in equal quantities in the smaller conversion reactors. The smaller conversion reactors operate sequentially with the next conversion reactor beginning operation only when the preceeding conversion reactor is catalytically exhausted. The by-passing of one or more of the catalyst beds prevents premature deactivation of the catalyst beds downstream of the point at which the reaction products are removed.