Exxonmobil Chemical Patents Inc.

Exxon Chemical Patents, Inc.

Exxonmobil Research and Engineering Company

Exxon Research and Engineering Company

Wilfried Jozef Mortier

Machteld Maria Mertens

Stephen Neil Vaughn

Luc R M Martens

Marcel J G Janssen

Gary David Mohr

Shun Chong Fung

Kenneth Ray Clem

Ronald G Searle

Antonie Jan Bons

Marcel Johannes Janssen

Xiaobing Feng

Marc H Anthonis

Cornelius W M Van Oorschot

Richard B Hall

An Verberckmoes

Johannes Petrus Verduijn

Albert Edward Schweizer

Per Johan Sterte

Lubomira Borislavova Tosheva

Machteld Maria Wilfried Mertens

Yi-Gang Xiong

Michael C Bradford

Jihad Mohammed Dakka

James C Vartuli

Kun Wang

Helge Jaensch

Robert C Lemon

Jannetje Maatje Van Den Berge

Lothar Ruediger Czarnetzki

Karl Gottlieb Strohmaier

Robert James Saxton

Guang Cao

Jane C Cheng

Mobae Afeworki

Johan Adriaan Martens

Yun-Feng Chang

Yun Feng Chang

Bart Schoofs

Cornelius Wilhelmus Van Oorschot

Anil S Guram

Pierre Jacobs

Thomas Herman Colle

David E W Vaughan

Brita Engels

Jeffrey C Yoder

Jane Chi-Ya Cheng

Hailian Li

Mark T Muraoka

Chris Esther Kliewer

Jannetje Maatje Van Den Berge, Legal Representative

Michiel Makkee

Raman Rayishankar

Christine Eva Antiona Kirschhock

Cornelius Maria Wilhelmus Van Oorschot

Cornelis Wilhelmus Maria Van Oorschot

Jannetje Maatje Van Der Berge

Johannes P Verduijn, Deceased

Wim Guy DeGijnst

Thomas H Colle

Antonie J Bons

Antonie-Jan Bons

A method of making a crystalline molecular sieve of MFI framework type, preferably ZSM-5, from a synthesis mixture comprising at least one source of tetravalent element (Y), at least one source of trivalent element (X), at least one source of alkali metal hydroxide (MOH), at least one structure directing; (R) and water, said synthesis mixture having the following molar composition: YO, (p)XO: (q) MOH: (r) R: (s) HO, wherein (p) is from 0.005 to 0.025, (q) is from 0.05 to 0.5, (r) is from 0.05 to 0.15 and (s) is from 35 to 45, wherein the ratio of the largest dimension (L) to the smallest dimension (S) of each crystal of the molecular sieve product is at least 5, and the smallest dimension (S) is from 20 nm to 200 nm.

MFI with unusual morphology

Catalytic structures are provided comprising octahedral tunnel lattice manganese oxides ion-exchanged with metal cations or mixtures thereof. The structures are useful as catalysts for the oxidation of alkanes and may be prepared by treating layered manganese oxide under highly acidic conditions, optionally drying the treated product, and subjecting it to ion exchange.

Manganese oxides and their use in the oxidation of alkanes

A silicoaluminophosphate molecular sieve is disclosed that comprises first and second intergrown phases of a CHA framework type and an AEI framework type, wherein said first intergrown phase has an AEI/CHA ratio of from about 5/95 to about 40/60 as determined by DIFFaX analysis, the second intergrown phase has an AEI/CHA ratio of about 30/70 to about as determined by DIFFaX analysis and said molecular sieve has a silica to alumina molar ratio (Si/Al) from about 0.13 to about 0.24.

Crystalline intergrowth material of silicoaluminophosphate having two intergrown phases

A catalyst for the oxidation of an alkane, alkene or mixtures thereof. The catalyst includes a mixed-metal oxide having the formula MoVNbTeSbOwherein, when a=1, b=0.01 to 1.0, c=0.01 to 1.0, d=0.01 to 1.0, e=0.01 to 1.0, and f is dependent upon the oxidation state of the other elements, the catalyst further characterized by having at least two crystal phases, the first crystal phase being an orthorhombic M1 phase and the second crystal phase being a pseudo-hexagonal M2 phase, the orthorhombic M1 phase present in an amount between greater than 60 weight percent to less than 90 weight percent. The catalysts disclosed herein exhibit a chemisorption of NHof less than about 0.2 mmole per gram of metal oxide.

Mixed metal oxide catalysts and processes for their preparation and use

A silicoaluminophosphate molecular sieve is disclosed that comprises first and second intergrown phases of a CHA framework type and an AEI framework type, wherein said first intergrown phase has an AEI/CHA ratio of from about 5/95 to about 40/60 as determined by DIFFaX analysis, the second intergrown phase has an AEI/CHA ratio of about 30/70 to about 55/45 as determined by DIFFaX analysis and said molecular sieve has a silica to alumina molar ratio (Si/Al) from about 0.13 to about 0.24.

Crystalline intergrowth material, its synthesis and its use in the conversion of oxygenates to olefins

This invention is directed to a method of making an olefin product from an oxygenate feedstock and a method of protecting catalytic activity of a silicoaluminophosphate molecular sieve. The methods comprise providing a silicoaluminophosphate molecular sieve having catalytic sites within the molecular sieve; shielding the catalytic sites to protect from loss of catalytic activity; and contacting the protected sieve in its activated state with an oxygenate feedstock under conditions effective to produce an olefin product before undesirable loss of catalytic activity. Undesirable loss in catalytic activity occurs when activated molecular sieve contacting the oxygenate feedstock has a methanol uptake index of at least 0.15.

Protecting catalytic activity of a SAPO molecular sieve

There is provided a coated zeolite catalyst in which the accessibility of the acid sites on the external surfaces of the zeolite is controlled and a process for converting hydrocarbons utilizing the coated zeolite catalyst. The zeolite catalyst comprises core crystals of a first zeolite and a discontinuous layer of smaller size second crystals of a second zeolite which cover at least a portion of the external surface of the first crystals The coated zeolite catalyst finds particular application in hydrocarbon conversion processes where catalyst activity in combination with zeolite structure are important for reaction selectivity, e.g., catalytic cracking, alkylation, disproportional of toluene, isomerization, and transalkylation reactions.

Coated zeolite catalysts and use for hydrocarbon conversion

A crystalline material substantially free of framework phosphorus and comprising a CHA framework type molecular sieve with stacking faults or at least one intergrown phase of a CHA framework type molecular sieve and an AEI framework type molecular sieve, wherein said material, in its calcined, anhydrous form, has a composition involving the molar relationship:(n)XO:YO,wherein X is a trivalent element; Y is a tetravalent element; and n is from 0 to about 0.5. The material exhibits activity and selectivity in the conversion of methanol to lower olefins, especially ethylene and propylene.

Chabazite-containing molecular sieve, its synthesis and its use in the conversion of oxygenates to olefins

A new family of crystalline molecular sieves is described having a characteristic XRD pattern as illustrated in FIG.and having three sharp peaks at 2&#x3b8; (CuK) of 8.82, 12.44, and 23.01.

Crystalline molecular sieves

There is provided a process for converting hydrocarbons using a catalyst comprising macrostructures having a three-dimensional network of particles comprised of porous inorganic material. The particles of the macrostructures occupy less than 75% of the total volume of the macrostructures and are joined together to form a three-dimensional interconnected network comprised of pores having diameters greater than about 20 &#x212b;. The macrostructures can be made by forming an admixture containing a porous organic ion exchanger and a synthesis mixture capable of forming the porous inorganic material; converting the synthesis mixture to the porous inorganic material; and removing the porous organic ion exchanger from the inorganic material.

Hydrocarbon conversion process and catalyst useful therein

Disclosed is a method of heat treating a molecular sieve. The method comprises providing a template-containing molecular sieve, heating the molecular sieve under conditions effective to remove a portion of the template from the molecular sieve, and cooling the heated molecular sieve to leave an amount of template effective to cover catalytic sites within the molecular sieve. A catalyst composition is also provided which comprises a molecular sieve having a microporous structure and a binder, wherein between 10 and 90 vol % of the microporous structure is occupied by a material, the material comprising a template or a carbonaceous residue of a template, and the catalyst composition exhibits a Davison Index of not greater than 30.

Heat treating a molecular sieve and catalyst

Colloidal crystalline molecular sieve seeds are used in phosphorus-containing crystalline molecular sieve manufacture. Certain of the products have enhanced utility in oxygenate conversions.

Processes for manufacture of molecular sieves

The present invention relates to a silicoaluminophosphate molecular sieve comprising at least one intergrown phase of molecular sieves having AEI and CHA framework types, wherein said intergrown phase has an AEI/CHA ratio of from about 5/95 to 40/60 as determined by DIFFaX analysis, using the powder X-ray diffraction pattern of a calcined sample of said silicoaluminophosphate molecular sieve. It also relates to methods for its preparation and to its use in the catalytic conversion of methanol to olefins.

Silicoaluminophosphate molecular sieve

Growing community of inventors

Kessel-lo, Belgium

Wilfried Jozef Mortier