Spent aromatization catalysts containing a transition metal and a catalyst support are selectively poisoned in the disclosed reforming methods, resulting in improvements in overall aromatics yield and selectivity.

Naphtha compositions with enhanced reformability are provided. The naphtha compositions can be derived from biomass, can exhibit improved N+2A values, and can be used as a reformer feedstock with little or no processing.

Naphtha compositions with enhanced reformability are provided. The naphtha compositions can be derived from biomass, can exhibit improved N+2A values, and can be used as a reformer feedstock with little or no processing.

The invention relates to a catalyst comprising a support, at least one noble metal M, tin, phosphorus and at least one lanthanide group element, the content of phosphorus element being comprised between 0.4 and 1% by weight, and the content of lanthanide group element(s) being less than 1% by weight with respect to the weight of the catalyst. The invention also relates to the process for the preparation of the catalyst and the use thereof in reforming.

The invention relates to a catalyst comprising a support, at least one noble metal M, tin, phosphorus and at least one lanthanide group element, the content of phosphorus element being comprised between 0.4 and 1% by weight, and the content of lanthanide group element(s) being less than 1% by weight with respect to the weight of the catalyst. The invention also relates to the process for the preparation of the catalyst and the use thereof in reforming.

Spent aromatization catalysts containing a transition metal and a catalyst support are selectively poisoned in the disclosed reforming methods, resulting in improvements in overall aromatics yield and selectivity.

A process for producing C.sub.6 to C.sub.8 aromatics and optionally light gas olefins from crude oil and/or pyrolysis oil is disclosed. The process can include hydroprocessing a first stream containing hydrocarbons from the crude oil and/or pyrolysis oil to obtain a second stream containing saturated hydrocarbons having boiling point less than 350? C., separating the second stream to obtain a third stream containing hydrocarbons having boiling point less than 70? C., a fourth stream containing hydrocarbons having boiling point 70? C. to 140? C., and a fifth stream containing hydrocarbons having boiling point greater than 140? C., recycling at least a portion of the fifth stream to the hydroprocessing step, reforming the fourth stream to obtain a sixth stream containing C.sub.6 to C.sub.8 aromatics, and optionally cracking the third stream to obtain light gas olefins.

The present disclosure relates to a reforming catalyst and a process for preparing the same. The acidic functionality of the catalyst is suppressed by using a chloride free alumina and coating the chloride free alumina with Group V B metal oxide in the catalyst, which helps in minimizing the cracking reactions and achieving higher selectivity for liquid hydrocarbons and aromatic hydrocarbons.

Zn-promoted and/or Ga-promoted cracking catalysts, such as cracking catalysts comprising an MSE framework zeolite or an MFI framework zeolite can provide unexpectedly superior conversion of branched paraffins when used as part of a catalyst during reforming of a hydrocarbon fuel stream. The conversion and reforming of the hydrocarbon fuel stream can occur, for example, in an internal combustion engine. The conversion and reforming can allow for formation of higher octane compounds from the branched paraffins.

Process for preparing a catalyst support which process comprises a) mixing pentasil zeolite having a bulk silica to alumina molar ratio in the range of from 20 to 150 with water, a silica source and an alkali metal salt, b) extruding the mixture obtained in step (a), c) drying and calcining the extrudates obtained in step (b), d) subjecting the calcined extrudates obtained in step (c) to ion exchange to reduce the alkali metal content, and e) drying the extrudates obtained in step (d); process for preparing a catalyst by furthermore impregnating such support with platinum in an amount in the range of from 0.001 to 0.1 wt % and tin in an amount in the range of from 0.01 to 0.5 wt %, each on the basis of total catalyst; ethylbenzene dealkylation catalyst obtainable thereby and a process for dealkylation of ethylbenzene which process comprises contacting feedstock containing ethylbenzene with such catalyst.