Methods of simultaneously converting butanes and methanol to olefins over Ti-containing zeolite catalysts are described. The exothermicity of the alcohols to olefins reaction is matched by endothermicity of dehydrogenation reaction of butane(s) to light olefins resulting in a thermo-neutral process. The Ti-containing zeolites provide excellent selectivity to light olefins as well as exceptionally high hydrothermal stability. The coupled reaction may advantageously be conducted in a staged reactor with methanol/DME conversion zones alternating with zones for butane(s) dehydrogenation. The resulting light olefins can then be reacted with iso-butane to produce high-octane alkylate. The net result is a highly efficient and low cost method for converting methanol and butanes to alkylate.

This invention relates to a process for converting acyclic C.sub.5 hydrocarbons to cyclopentadiene in a reactor system, wherein the process comprises a reaction interval comprising: cyclically providing to the reactor system a feedstock comprising acyclic C.sub.5 hydrocarbons; contacting the feedstock and with a particulate material comprising a catalyst material in a first reaction zone under reaction conditions to convert at least a portion of the acyclic C.sub.5 hydrocarbons to a first effluent comprising cyclopentadiene; and a reheating interval comprising: cyclically halting the feedstock to the first reaction zone; and providing a reheating gas to the first reaction zone to reheat the particulate material.

This invention relates to a process for converting acyclic C.sub.5 hydrocarbons to cyclopentadiene in a reactor system, wherein the process comprises a reaction interval comprising: cyclically providing to the reactor system a feedstock comprising acyclic C.sub.5 hydrocarbons; contacting the feedstock and with a particulate material comprising a catalyst material in a first reaction zone under reaction conditions to convert at least a portion of the acyclic C.sub.5 hydrocarbons to a first effluent comprising cyclopentadiene; and a reheating interval comprising: cyclically halting the feedstock to the first reaction zone; and providing a reheating gas to the first reaction zone to reheat the particulate material.

This invention relates to a process for converting acyclic C.sub.5 hydrocarbons to cyclopentadiene in a reactor system, wherein the process comprises a reaction interval comprising: cyclically providing to the reactor system a feedstock comprising acyclic C.sub.5 hydrocarbons; contacting the feedstock and with a particulate material comprising a catalyst material in a first reaction zone under reaction conditions to convert at least a portion of the acyclic C.sub.5 hydrocarbons to a first effluent comprising cyclopentadiene; and a reheating interval comprising: cyclically halting the feedstock to the first reaction zone; and providing a reheating gas to the first reaction zone to reheat the particulate material.

This invention relates to a process for converting acyclic C.sub.5 hydrocarbons to cyclic C.sub.5 compounds including cyclopentadiene in a reactor system, wherein the process comprises: providing to the reactor system a feedstock comprising acyclic C.sub.5 hydrocarbons; providing to the reactor system a particulate material comprising a catalyst material; contacting the feedstock and the particulate material in at least one reaction zone under reaction conditions to convert at least a portion of the acyclic C.sub.5 hydrocarbons to a first effluent comprising cyclopentadiene; wherein the feedstock flows co-current to a direction of a flow of the particulate material.

This invention relates to a process for converting acyclic C.sub.5 hydrocarbons to cyclic C.sub.5 compounds including cyclopentadiene in a reactor system, wherein the process comprises: providing to the reactor system a feedstock comprising acyclic C.sub.5 hydrocarbons; providing to the reactor system a particulate material comprising a catalyst material; contacting the feedstock and the particulate material in at least one reaction zone under reaction conditions to convert at least a portion of the acyclic C.sub.5 hydrocarbons to a first effluent comprising cyclopentadiene; wherein the feedstock flows co-current to a direction of a flow of the particulate material.

This invention relates to a process for converting acyclic C.sub.5 hydrocarbons to cyclic C.sub.5 compounds including cyclopentadiene in a reactor system, wherein the process comprises: providing to the reactor system a feedstock comprising acyclic C.sub.5 hydrocarbons; providing to the reactor system a particulate material comprising a catalyst material; contacting the feedstock and the particulate material in at least one reaction zone under reaction conditions to convert at least a portion of the acyclic C.sub.5 hydrocarbons to a first effluent comprising cyclopentadiene; wherein the feedstock flows co-current to a direction of a flow of the particulate material.

This invention relates to processes and systems for converting acyclic hydrocarbons to alkenes, cyclic hydrocarbons and/or aromatics, for example converting acyclic C.sub.5 hydrocarbons to cyclopentadiene in a reactor system. The process includes contacting a feedstock comprising acyclic hydrocarbons with a catalyst material and an inert material to convert at least a portion of the acyclic hydrocarbons to a first effluent comprising alkenes, cyclic hydrocarbons and/or aromatics. In particular, the catalyst material and the inert material have a different average diameter and/or density providing varying fluidization behavior in the reactor.

This invention relates to processes and systems for converting acyclic hydrocarbons to alkenes, cyclic hydrocarbons and/or aromatics, for example converting acyclic C.sub.5 hydrocarbons to cyclopentadiene in a reactor system. The process includes contacting a feedstock comprising acyclic hydrocarbons with a catalyst material and an inert material to convert at least a portion of the acyclic hydrocarbons to a first effluent comprising alkenes, cyclic hydrocarbons and/or aromatics. In particular, the catalyst material and the inert material have a different average diameter and/or density providing varying fluidization behavior in the reactor.

Disclosed is a process for the conversion of acyclic C.sub.5 feedstock to a product comprising cyclic C.sub.5 compounds, including cyclopentadiene, and formulated catalyst compositions for use in such process. The process comprises contacting the feedstock and, optionally, hydrogen under acyclic C.sub.5 conversion conditions in the presence of a catalyst composition to form the product. The catalyst composition comprises a microporous crystalline metallosilicate, a Group 10 metal or compound thereof, a binder, optionally, a metal selected from the group consisting of rare earth metals, metals of Groups 8, 9, or 11, mixtures or combinations thereof, or a compound thereof, in combination with a Group 1 alkali metal or a compound thereof and/or a Group 2 alkaline earth metal or a compound thereof.