The present invention relates to a hydrocarbon conversion catalyst system comprising: a first composition comprising a dehydrogenation active metal on a solid support; and a second composition comprising a transition metal on an inorganic support and a hydrocarbon conversion process utilizing the hydrocarbon conversion catalyst system.

The present invention relates to catalysts, catalyst systems, and processes for the production of valuable light olefins, such as C.sub.2-C.sub.4 olefins (ethylene, propylene, and/or butenes) from paraffinic hydrocarbons, such as propane, through dehydrogenation and metathesis. Some particular aspects relate to the discovery of non-precious metal catalysts and catalyst systems utilizing such catalysts, for example in the case of being in an admixture with a metathesis catalyst, which advantageously exhibit high performance in terms of activity, selectivity, and stability. Other advantages can include a reduced production of byproducts (e.g., methane and ethane) that result from undesired side reactions, in addition to benefits that may be attained through the addition of a sulfur-bearing compound (e.g., H.sub.2S).

The disclosure relates to a single-atom-based catalyst system with total-length control of single-atom catalytic sites. The single-atom-based catalyst system comprises at least one catalyst structure comprising a first assembly of a plurality of single-atom-catalyst superparticles. The single-atom-catalyst superparticles comprise a second assembly of a plurality of single-atom-catalyst nanoparticles. The single-atom-based catalyst system has controlled porosity and spatial distribution of active single-atom catalysts from the atomic scale to the macroscopic scale. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

The present invention provides a production method for indene, comprising a dehydrogenation step of obtaining a reaction product containing indene by contacting a raw material gas containing indane and molecular hydrogen with a dehydrogenation catalyst, wherein the dehydrogenation catalyst comprises a support containing aluminum, and a supported metal supported on the support, the supported metal contains a group 14 metal element and platinum, and an atomic ratio of the group 14 metal element to the platinum in the dehydrogenation catalyst is 8.0 or less.

Olefins may be produced from C.sub.4-C.sub.6 saturated hydrocarbons by systems and methods comprising passing a feed comprising C.sub.4-C.sub.6 saturated hydrocarbons and hydrogen into a dehydrogenation unit to produce a dehydrogenation effluent, passing at least a portion of the dehydrogenation effluent into a hydrogenation unit to produce a hydrogenation effluent, and passing at least a portion of the hydrogenation effluent into a cracking unit to produce a cracking effluent comprising olefins. The dehydrogenation unit includes a dehydrogenation catalyst, the hydrogenation unit includes a hydrogenation catalyst, and the cracking unit includes a cracking catalyst.

The disclosure relates to a process to perform an endothermic dehydrogenation and/or aromatization reaction of hydrocarbons, said process comprising the steps of providing at least one fluidized bed reactor comprising at least two electrodes and a bed comprising particles; putting the particles in a fluidized state to obtain a fluidized bed; heating the fluidized bed to a temperature ranging from 480° C. to 700° C. to conduct the reaction; and obtaining a reactor effluent containing hydrogen, unconverted hydrocarbons, and olefins and/or aromatics; wherein the particles of the bed comprise electrically conductive particles and particles of a catalytic composition, wherein at least 10 wt. % of the particles are electrically conductive particles and have a resistivity ranging from 0.001 Ohm.Math.cm to 500 Ohm.Math.cm at 500° C. and wherein the step of heating the fluidized bed is performed by passing an electric current of through the fluidized bed.

According to one or more embodiments described herein, a method for dehydrogenating hydrocarbons may include passing a hydrocarbon feed comprising one or more alkanes or alkyl aromatics into a fluidized bed reactor, contacting the hydrocarbon feed with a dehydrogenation catalyst in the fluidized bed reactor to produce a dehydrogenated product and hydrogen, and contacting the hydrogen with an oxygen-rich oxygen carrier material in the fluidized bed reactor to combust the hydrogen and form an oxygen-diminished oxygen carrier material. In additional embodiments, a dual-purpose material may be utilized which has dehydrogenation catalyst and oxygen carrying functionality.

A process for oxidizing methyl-substituted biphenyl compounds comprises contacting a mixture comprising isomers of at least one methyl-substituted biphenyl compound with a source of oxygen, wherein the mixture comprises at least 20 wt % of isomer(s) having a methyl group at a 2-position or a 3-position on at least one benzene ring and at least 50 wt % of isomer(s) having a methyl group at a 4-position on at least one benzene ring, wherein said percentages are based on the total weight of the at least one methylbiphenyl compound in the mixture.

The present invention provides a production method for indene, comprising a dehydrogenation step of obtaining a reaction product containing indene by contacting a raw material composition containing indene with a dehydrogenation catalyst, wherein the dehydrogenation catalyst comprises a support containing aluminum, and a group 14 metal element and platinum supported on the support, a content of the platinum in the dehydrogenation catalyst is 0.6 to 2.5% by mass based on a whole amount of the dehydrogenation catalyst, and an atomic ratio of the group 14 metal element to the platinum in the dehydrogenation catalyst is 4.0 to 20.0.

Processes for upgrading a hydrocarbon. The process can include (I) contacting a hydrocarbon-containing feed with a catalyst that can include a Group 8-10 element or a compound thereof disposed on a support to effect one or more of dehydrogenation, dehydroaromatization, and dehydrocyclization of at least a portion of the hydrocarbon-containing feed to produce a coked catalyst and an effluent. The process can also include (II) contacting at least a portion of the coked catalyst with an oxidant to effect combustion of at least a portion of the coke to produce a regenerated catalyst. The process can also include (III) contacting an additional quantity of the hydrocarbon-containing feed with at least a portion of the regenerated catalyst. A cycle time from the contacting the hydrocarbon-containing feed with the catalyst in step (I) to the contacting the additional hydrocarbon-containing feed with the regenerated catalyst in step (III) can be ≤5 hours.