Exxonmobil Engineering & Technology Company

Exxonmobil Chemicals Patents, Inc.

Exxonmobil Chemical Patents Inc.

William J Knaeble

Wenyih Frank Lai

Doron Levin

Allen Wayne Burton

Ivy Dawn Johnson

Joseph E Gatt

Reuben Britto

Christopher G Oliveri

Aaron W Peters

Maryam Peer

Benjamin C Gamoke

Thomas J Ferro

Dominick A Zurlo, Iv

Jocelyn A Gilcrest

Preeti Kamakoti

Natalie A Fassbender

Methods and corresponding catalysts are provided for conversion of an aromatic feed containing Caromatics (particularly Caromatics) to form a converted product mixture comprising, e.g., benzene and/or xylenes. The aromatic feed can be converted in the presence of a catalyst that includes a silica binder, a mixture of a first zeolite having an MEL framework (such as ZSM-11 and/or an MFI framework (such as ZSM-5), and a second zeolite having an MOR framework, such as mordenite, particularly a mordenite synthesized using TEA or MTEA as a structure directing agent, and a metal. The catalyst can further include one or more metals supported on the catalyst.

Catalysts and processes for converting aromatics

Methods and corresponding catalysts are provided for conversion of an aromatics feed containing Caromatics, particularly Caromatics, to form a converted product mixture comprising, e.g., benzene and/or xylenes. The aromatic feed can be converted in the presence of a catalyst that includes a mixture of a first zeolite having an MEL framework, such as ZSM-11, and a second zeolite having a MOR framework, such as mordenite, particularly a mordenite synthesized using TEA or MTEA as a structure directing agent. The weight ratio of the first zeolite to the second zeolite in the catalyst can be from 0.3 to 1.2, or from 0.3 to 1.1, or from 0.3 to 1.0. The catalyst can further include one or more metals supported on the catalyst, such as a combination of metals.

A process for producing a monoalkylated benzene comprises contacting benzene with a mixture comprising dialkylated and trialkylated benzenes in the presence of a transalkylation catalyst composition under transalkylation conditions effective to convert at least part of the dialkylated and trialkylated benzene to monoalkylated benzene, wherein the catalyst composition comprises a metallosilicate zeolite comprising openings defined by 14-membered rings of tetrahedrally coordinated atoms and the transalkylation conditions include a temperature in the range of 160&#xb0; C. to 220&#xb0; C.

Production of alkylaromatic compounds

A process for producing a monoalkylated benzene comprises the step of contacting benzene with a mixture comprising dialkylated and trialkylated benzenes in the presence of a transalkylation catalyst composition under transalkylation conditions effective to convert at least part of the dialkylated and trialkylated benzene to monoalkylated benzene, wherein the transalkylation catalyst, composition comprises zeolite beta having an external surface in excess of 350 m2/g as determined by the t-plot method for nitrogen physisorption.

Embodiments disclosed herein related to processes and systems for alkane aromatization. In some embodiments, the process includes merging a benzene-containing stream into an ethane containing stream to form a feed stream. The feed stream has at least 5 wt. % benzene based on the total weight of the feed stream. In addition, the process includes contacting the feed stream with an aromatization catalyst to produce an effluent stream comprising Caromatic hydrocarbons. Less than 5 wt. % net benzene is produced during the contacting, based on a total weight of the feed stream.

Systems and processes for alkane aromatization

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Bridgewater, NJ, United States of America

William J Knaeble