Methods for forming dehydrogenated products utilizing combustion bypass of some catalyst

Abstract

A dehydrogenated product may be formed by a method that includes reacting a feed stream in the presence of a catalyst by a dehydrogenation reaction in a reactor to form a dehydrogenated product, separating at least a portion of the product stream from the catalyst, separating the catalyst into at least a first catalyst portion and a second catalyst portion, and passing the first catalyst portion to a combustor. The first catalyst portion may be heated in the combustor by the combustion of supplemental fuel. The method may further include passing the first catalyst portion out of the combustor and combining the first catalyst portion with the second catalyst portion downstream of the combustor to form a recombined catalyst stream, such that the second catalyst portion bypasses the combustor. The method may further include passing the recombined catalyst stream through an oxygen treatment zone, and passing the recombined catalyst stream to the reactor.

Dependencies are inferred from the claim text.