Exxon Chemical Patents, Inc.

Saudi Basic Industries Corporation

Other

Exxonmobil Chemical Patents Inc.

Robert Scott Smith

Gary David Mohr

Gopalakrishnan G Juttu

Jos Peter Wristers

Christopher Lynn Becker

Johannes Petrus Verduijn

Thomas Herman Colle

Dan E Hendriksen

Steven L McMahon

Johannes Petrus Verduijn, Deceased

James Richardson Lattner

Stephen Neil Vaughn

Kenneth Ray Clem

Hsiang-Ning Sun

Igor Krasnov

Scott F Mitchell

Gotz Burgfels

Thomas Mathew

Jannetje Maatje Van Den Berge

Doug Wilson

Jason McMinn

Dale Penndorf

By Jannetje Van Den Berge, Executrix

Jannetje Maatje Van Den Berge, Executrix

Gopalakrishnan G 15015 W Airport Blvd Juttu

This invention is for a catalyst for conversion of a hydrocarbonaceous feed. The catalyst is a zeolite aluminosilicate with a silicon to aluminum molar ratio from about 70:1 to about 100:1 on which a noble metal has been deposited. The zeolite catalyst may contain other optional tetravalent and trivalent elements in the zeolite framework. The zeolite structure may be MFI, FAU, TON, MFL, VPI, MEL, AEL, AFI, MWW or MOR. The catalyst is synthesized by preparing a zeolite containing aluminum, silicon and, optionally, other elements, such as germanium, in the framework, depositing a noble metal, such as platinum, on the zeolite and calcining the zeolite. The catalyst may be used for aromatization of alkanes to aromatics. One embodiment is a MFI zeolite catalyst which may be used for the aromatization of alkanes having two to six carbon atoms per molecule to aromatics, such as benzene, toluene and xylenes.

Process of using zeolite catalyst for hydrocarbon conversion

A catalyst, a process for making the catalyst and a process for using the catalyst in aromatization of alkanes to aromatics, specifically, aromatization of alkanes having two to six carbon atoms per molecule, such as propane, to aromatics, such as benzene, toluene and xylene. The catalyst is an aluminum-silicon-germanium zeolite on which platinum has been deposited. Germanium is in the framework of the crystalline zeolite. Platinum is deposited on the zeolite. The catalyst may be supported on magnesia, alumina, titania, zirconia, thoria, silica, boria or mixtures thereof. The catalyst may contain a sulfur compound on the surface of the catalyst. The sulfur compound may be added to the catalyst in a pretreatment process or introduced with the hydrocarbon feed to contact the catalyst during the aromatization process. Generally, the catalyst may be of the formula M[(SiO)(XO)(YO)]Zwhere M is a noble metal such as platinum or gold, X is titanium, germanium, tin or another tetravalent element, Y is boron, aluminum, gallium, indium, tellurium or another trivalent element, Z is a cation with a valence of n such as H, Na, K, Rb, Cs, Ca, Mg, Sror Ba, x varies from 0-0.15 and y is 0-0.125. An example catalyst would be represented as |HPt|[SiGeAlO]-MFI.

Catalyst for aromatization of alkanes, process of making and using thereof

A catalyst of a gallium zeolite on which platinum (Pt/Ga-ZSM-5) has been deposited may be used for aromatization of alkanes having two to six carbon atoms per molecule, such as ethane, propane, butane, etc., to aromatics, such as benzene, toluene and xylenes (BTX). The gallium zeolite contains gallium and silicon in the framework of the zeolite structure. The zeolite structure may be of MFI, FAU, TON, MFL, VPI, MEL, AEL, AFI, MWW or MOR, but preferably, the zeolite has a MFI structure, more preferably is ZSM-5 MFI zeolite. According to the IUPAC recommendations, an example of the sodium form of the zeolite would be represented as:|Na&#xb7;(HO)|[GaSiO]&#x2212;MFIwhere x=0.1&#x2013;25; y=60&#x2013;100; and z=0.1&#x2013;10. Platinum may be deposited on the gallium zeolite by ion exchange or impregnation.

Catalyst for aromatization of alkanes, process of making and process of using thereof

Aromatization of alkanes having one to four carbon atoms per molecule to aromatics, such as benzene, toluene and xylenes (BTX), uses a catalyst of a crystalline zeolite on which platinum has been deposited, specifically a platinum-containing ZSM-5. A byproduct of the process is a light gas fraction of methane and ethane. The use of a platinum-containing ZSM-5 catalyst in an alkane aromatization process, such as the Cyclar process, suppresses the formation of methane and increases selectivity to BTX. The high content of ethane relative to methane in the light gas fraction allows this process effluent to be a feedstream for a cracker.

Process for alkane aromatization using platinum-zeolite catalyst

A process is provided for the alkylation, transalkylation, or isomerization of aromatic hydrocarbons. The processes comprises contacting aromatic hydrocarbons under conversion conditions with a zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst comprises first crystals of a first large pore zeolite which are bound together by second crystals of a second zeolite.

Aromatic conversion processes and zeolite catalyst useful therein

A catalyst, a process for making the catalyst and a process for using the catalyst in aromatization of alkanes to aromatics, specifically, aromatization of alkanes having two to six carbon atoms per molecule, such as propane, to aromatics, such as benzene, toluene and xylene. The catalyst is an aluminum-silicon-germanium zeolite on which platinum has been deposited. Germanium is in the framework of the crystalline zeolite. Platinum is deposited on the zeolite. The catalyst may be supported on magnesia, alumina, titania, zirconia, thoria, silica, boria or mixtures thereof. The catalyst may contain a sulfur compound on the surface of the catalyst. The sulfur compound may be added to the catalyst in a pretreatment process or introduced with the hydrocarbon feed to contact the catalyst during the aromatization process. Generally, the catalyst may be of the formula M&lsqb;(SiO )(XO ) (YO ) &rsqb;Z where M is a noble metal such as platinum or gold, X is titanium, germanium, tin or another tetravalent element, Y is boron, aluminum, gallium, indium, tellurium or another trivalent element, Z is a cation with a valence of n such as H , Na , K , Rb , Cs , Ca , Mg , Sr or Ba , x varies from 0-0.15 and y is 0-0.125. An example catalyst would be represented as &verbar;H Pt&verbar;&lsqb;Si Ge Al O &rsqb;-MFI.

There is provided catalysts and conversion processes for converting hydrocarbons using the catalysts. The catalysts comprises a first alumino-phosphospho-molecular sieves and a binder comprising a second alumino-phopho-molecular sieves. Exemplary conversion processes include the conversion of oxygenates to olefins, dewaxing, reforming, dealkylation, dehydrogenation, transalkylation, alkylation, and isomerization.

Hydrocarbon conversion catalyst and its use

A system for managing file content, such as Microsoft Powerpoint for Windows&trade; presentation slides, is provided. The system includes an upload interface that can receive files, such as a file containing slides, from an upload client. The upload interface can extract data structures, such as slides or images, from each file, and index data from each data structure. The system also includes an index system that is connected to the upload interface. The index system can receive the index data from the upload interface and store the index data. A content storage system connected to the upload interface and the index system can receive data structures for storage from the upload interface system, and can provide a storage address for locating each data structure to the index system. A download interface is connected to the content storage system, and can be used to identify data structures matching a query and to download the data structures to a download client.

System and method for managing file content

A process for catalytically isomerizing olefins, particularly for isomerizing alkenyl bridged ring compounds to the corresponding alkylidene bridged ring compounds. The catalyst is prepared by forming a dispersion of a metallic alkali metal on a support with simultaneous exposure to oxygen.

Isomerization of olefins

A process for converting hydrocarbons by contacting a hydrocarbon feedstream under hydrocarbon conversion conditions with a large crystal zeolite catalyst. The large crystal zeolite of the catalyst used in the hydrocarbon conversion process is made by heating an aqueous zeolite synthesis mixture under agitation to a temperature equal to or less than the effective nucleation temperature of the synthesis mixture. After this step, the aqueous synthesis mixture is heated in the absence of agitation to a temperature equal to or greater than the effective nucleation temperature of the aqueous zeolite synthesis mixture. The process finds particular application in hydrocarbon conversion processes where reduced non-selective acidity is important for reaction selectivity and/or the maintenance of catalyst activity, e.g., toluene disproportionation, dealkylation, alkylation, and transalkylation.

Hydrocarbon conversion using large crystal zeolite catalyst

Aromatic conversion processes and zeolite bound zeolite catalyst useful

The invention relates to a process for converting oxygenated organic material, to olefins using small pore molecular sieve catalysts. More particularly, the invention relates to a method for converting oxygenated organic material to olefins with improved the olefin yields and decreased yields of methane and other light saturate byproducts. The improved yield slate is achieved by treating the small pore molecular sieve catalyst with a modifier selected from the group consisting of polynuclear aromatic heterocyclic compounds with at least three interconnected ring structures having at least one nitrogen atom as a ring substituent, each ring structure having at least five ring members, decomposed derivatives of said polynuclear aromatic heterocyclic compound, and mixtures thereof.

Oxygenate conversions using modified small pore molecular sieve catalysts

A dehydrocyclo-oligomerization process is provided for converting aliphatic hydrocarbons to aromatics by contacting the feedstock under conversion conditions which a zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst comprises first zeolite crystals which are bound together by second zeolite crystals. If the zeolite bound zeolite catalyst is selectivated, the process can produce greater than equilibrium amounts of paraxylene.

Process for producing aromatic compounds from aliphatic hydrocarbons

A process is provided for the production of paraxylene by the methylation of toluene in the presence of a zeolite bound zeolite catalyst. The catalyst comprises first zeolite crystals which are bound together by second zeolite crystals. When used to methylate toluene to para-xylene, the zeolite bound zeolite catalyst has a para-xylene selectivity greater than thermodynamic equilibrium. This selectivity can be enhanced by selectivating the catalyst.

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Houston, TX, United States of America

Robert Scott Smith