Exxonmobil Research and Engineering Company

Exxonmobil Technology and Engineering Company

William W Lonergan

Wenyih Frank Lai

Karl Gottlieb Strohmaier

Simon Christopher Weston

Ivy Dawn Johnson

Doron Levin

Scott Jeffrey Weigel

Stephen John McCarthy

Chuansheng Bai

Matthew J Vincent

Hilda B Vroman

Paul Podsiadlo

Matthew Scott Ide

Federico Barrai

Joseph E Gatt

Nicholas S Rollman

Nadya A Hrycenko

Theodore E Datz

Jenna L Walp

Wei-Ping Tai

Keith C Gallow

Brett T Loveless

Scott J Weigel

Simon C Weston

Karl G Strohmaier

Stephen J Mccarthy

Ivy D Johnson

Catalyst compositions comprising a zeolite and a mesoporous support or binder are disclosed. The mesoporous support or binder comprises a mesoporous metal oxide having a particle diameter of greater than or equal to 20 μm at 50% of the cumulative pore size distribution (d). Also disclosed are processes for producing a mono-alkylated aromatic compound (e.g., ethylbenzene or cumene) which exhibit improved yield of the mono-alkylated aromatic compound using alkylation catalysts comprising one or more of these catalyst compositions.

Catalyst compositions and their use in aromatic alkylation processes

In a process for improving the cold flow properties of a hydrocarbon feedstock, the feedstock is contacted with a catalyst composition comprising an EMM-17 molecular sieve and a hydrogenation component under dewaxing conditions effective to produce a dewaxed product having a cloud point and/or pour point that is reduced relative to the cloud point and/or pour point of the feedstock by at least 5&#xb0; C.

Catalytic dewaxing of hydrocarbon feedstocks

A molecular sieve material, EMM-17, has in its as-calcined form, a total surface area of greater than 550 m/g and/or an external surface area of greater than about 100 m/g as measured by the BET Method, and a specific X-ray diffraction pattern.

Small crystal EMM-17, its method of making and use

Methods are provided for making base metal catalysts with improved activity. After forming catalyst particles based on a support comprising a zeolitic molecular sieve, the catalyst particles can be impregnated with a solution comprising a) metal salts (or other precursors) for a plurality of base metals and b) an organic dispersion agent comprising 2 to 10 carbons. The impregnated support particles can be dried to form a base metal catalyst, and then optionally sulfided to form a sulfided base metal catalyst. The resulting (sulfided) base metal catalyst can have improved activity for cloud point reduction and/or for improved activity for heteroatom removal, relative to a base metal dewaxing catalyst prepared without the use of a dispersion agent.

Base metal dewaxing catalyst

Methods are provided for synthesis of various types of zeolites using synthesis mixtures that contain a dominant structure directing agent and one or more secondary structure directing agents. Advantageously, the secondary structure directing agents may substantially not alter the crystal structure and/or morphology of the crystals generated by a synthesis mixture in the presence of the dominant structure directing agent.

Zeolite synthesis with dominant and secondary templates

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Humble, TX, United States of America

William W Lonergan