Exxonmobil Chemical Patents Inc.

Exxonmobil Research and Engineering Company

Exxon Chemical Patents, Inc.

Exxon Mobil Chemical, Inc.

Matu J Shah

Guang Cao

Karl Gottlieb Strohmaier

David Charles Calabro

Mobae Afeworki

Quanchang Li

Preeti Kamakoti

John Frances Brody

Wenyih Frank Lai

Machteld Maria Mertens

Stephen John McCarthy

Simon Christopher Weston

Ivy Dawn Johnson

Lei Zhang

Richard B Hall

Paul Podsiadlo

Matthew Scott Ide

Kiara M Benitez

David A Griffin

Jean Willem Lodewijk Beeckman

Dennis G Peiffer

Tan-Jen Chen

Daniel Paul Leta

Robert James Saxton

Jean Willem Beeckman

Sebastian Carmen Reyes

Anthony F Volpe

Luc Roger Martens

Anil S Guram

Marc H Anthonis

Stephen M Cundy

Jeffrey C Yoder

Douglas Lewis Dorset

Kanmi Mao

Hailian Li

Gordon Kennedy

Mark T Muraoka

Meghan Nines

Meghan Kochersperger

Jeffrey L White

Mary Kathryn Lee

Stephen John Mccarthy

Hydrogenation catalysts for aromatic hydrogenation including an organosilica material support, which is a polymer comprising independent units of a monomer of Formula [ZOZOSiCH](I), wherein each Zand Zindependently represent a hydrogen atom, a C-Calkyl group or a bond to a silicon atom of another monomer; and at least one catalyst metal are provided herein. Methods of making the hydrogenation catalysts and processes of using, e.g., aromatic hydrogenation, the hydrogenation catalyst are also provided herein.

Aromatic hydrogenation catalysts and uses thereof

Organosilica materials, which are a polymer of at least one independent monomer of Formula [ZOZOSiCH](I), wherein Zand Zeach independently represent a hydrogen atom, a C-Calkyl group or a bond to a silicon atom of another monomer and at least one other monomer is provided herein. Methods of preparing and processes of using the organosilica materials, e.g., for gas separation, color removal etc., are also provided herein.

Organosilica materials and uses thereof

A process for producing an aluminosilicate molecular sieve comprises crystallizing a reaction mixture comprising water, a source of silica and seeds of a silicoaluminophosphate and/or an aluminophosphate molecular sieve. The resultant aluminosilicate molecular sieve product can advantageously be substantially free of framework phosphorus.

Seeded synthesis of aluminosilicate molecular sieves

A method is disclosed of treating a crystalline material comprising a CHA framework-type molecular sieve, wherein said crystalline material has a composition and involving the molar relationship:()XO:YO,where X is a trivalent element, Y is a tetravalent element, and n is less than 0.07, and wherein the crystalline material does not comprise a silicoaluminophosphate, is substantially free of framework phosphorus, or both. The method can comprise treating the crystalline material with steam under conditions such that the prime olefin selectivity of the treated material in an oxygenate conversion process is greater than the prime olefin selectivity of the untreated material in the same process.

Treatment of CHA-type molecular sieves and their use in the conversion of oxygenates to olefins

A molecular sieve comprises at least one intergrown phase of an AFX framework-type molecular sieve and a CHA framework-type molecular sieve and is conveniently synthesized using a combination of N,N,N'N&#x2032;-tetramethylhexane-1,6-diamine and N,N-dimethylcyclohexylamine as organic directing agents.

Intergrown molecular sieve, its synthesis and its use in the conversion of oxygenates to olefins

A method is disclosed of treating a porous crystalline molecular sieve having a pore size less than or equal to about 5 Angstroms to decrease its coke selectivity in oxygenate to olefin conversion reactions. The method comprises contacting the molecular sieve with an acid having a kinetic diameter greater than or equal to that of acetic acid.

Treatment of small pore molecular sieves and their use in the conversion of oxygenates to olefins

The synthesis of a crystalline aluminophosphate or silicoaluminophosphate molecular sieve having a chabazite-type framework type is conducted in the presence of an organic directing agent having the formula (I)[RRRN&#x2014;R]X&#x2003;&#x2003;(I)wherein R, Rand Rare independently selected from the group consisting of alkyl groups having from 1 to 3 carbon atoms and hydroxyalkyl groups having from 1 to 3 carbon atoms; Ris selected from the group consisting of 4- to 8-membered cycloalkyl groups, optionally substituted by 1 to 3 alkyl groups having from 1 to 3 carbon atoms; 4- to 8-membered heterocyclic groups having from 1 to 3 heteroatoms, said heterocyclic groups being optionally substituted by 1 to 3 alkyl groups having from 1 to 3 carbon atoms and the heteroatoms in said heterocyclic groups being selected from the group consisting of O, N, and S; and aromatic groups optionally substituted by 1 to 3 alkyl groups, said alkyl groups having from 1 to 3 carbon atoms; and Xis an anion.

Synthesis of molecular sieves having the chabazite framework type and their use in the conversion of oxygenates to olefins

In a method of synthesizing a silicoaluminophosphate or aluminophosphate molecular sieve comprising a CHA framework-type material, a synthesis mixture is provided comprising a source of aluminum, a source of phosphorus, optionally a source of silicon and at least one organic template of formula (I):[RRRRN]X&#x2003;&#x2003;(I)wherein each of R, R, R, and Ris independently an acyclic alkyl group having at least one carbon atom, the total number of carbon atoms in said alkyl groups R, R, R, and Ris greater than 8 but less than 16, and Xis an anion. The synthesis mixture can then be crystallized to produce the desired molecular sieve.

Synthesis of chabazite structure-containing molecular sieves and their use in the conversion of oxygenates to olefins

In a method of synthesizing an aluminophosphate or metalloaluminophosphate molecular sieve, a synthesis mixture is provided comprising water, a source of aluminum, a source of phosphorus, optionally a source of a metal other than aluminum, a tertiary amine, and an alkylating agent capable of reacting with said tertiary amine to form a quaternary ammonium compound capable of directing the synthesis of said molecular sieve. The synthesis mixture is maintained under conditions sufficient to cause the alkylating agent to react with the tertiary amine to produce the quaternary ammonium compound and to induce crystallization of the molecular sieve.

Synthesis of aluminophosphate and metalloaluminophosphate molecular sieves

A process for synthesizing the porous crystalline material ITQ-12 is disclosed and employs an organic directing agent having the formula: where n is an integer from 1 to 3 and Qis an anion. The resultant ITQ-12 is useful in as a catalyst in chemical conversion reactions and as an adsorbent for gas separation.

Synthesis of ITQ-12

The invention relates to a method for converting an oxygenated hydrocarbon feedstock into an olefin product comprising: (a) forming a CHA framework type aluminosilicate sieve catalyst made from a substantially fluoride-free synthesis mixture comprising silicon and aluminum sources, a slurry medium, and a template, wherein the sieve is substantially free from framework phosphorus and exhibits a Si/Al ratio from about 40-60; (b) optionally formulating the molecular sieve catalyst with an oxidized aluminum-containing precursor matrix material and a clay binder to form a molecular sieve catalyst composition; (c) activating the catalyst by removing/decomposing the template; and (d) contacting the activated catalyst with the feedstock under conditions sufficient to form an olefin product comprising &#x2267;about 65% by weight, on a water-free basis, of ethylene and propylene and having an ethylene-to-propylene ratio &#x2267;about 1.2. Ethylene- and propylene-containing polymers can be formed from the olefin product.

Light olefin selective oxygenate conversion process using CHA framework type aluminosilicate

A novel small pore (metallo)aluminophosphate molecular sieve is disclosed. The as-synthesized material has an X-ray diffraction pattern including the lines listed in Table 1 and is produced in the presence of fluoride ions and 4-dimethylaminopyridine as structure directing agent. The silicoaluminophosphate material has methanol conversion activity and n-hexane cracking activity.

Aluminophosphate molecular sieve, its synthesis and use

The synthesis of a crystalline material, in particular, a high silica zeolite, comprising a chabazite-type framework molecular sieve is conducted in the presence of an organic directing agent having the formula:[RRRN&#x2014;R]Qwherein Rand Rare independently selected from hydrocarbyl groups and hydroxy-substituted hydrocarbyl groups having from 1 to 3 carbon atoms, provided that Rand Rmay be joined to form a nitrogen-containing heterocyclic structure, Ris an alkyl group having 2 to 4 carbon atoms and Ris selected from a 4- to 8-membered cycloalkyl group, optionally, substituted by 1 to 3 alkyl groups each having from 1 to 3 carbon atoms; and a 4- to 8-membered heterocyclic group having from 1 to 3 heteroatoms, said heterocyclic group being, optionally, substituted by 1 to 3 alkyl groups each having from 1 to 3 carbon atoms and the or each heteroatom in said heterocyclic group being selected from the group consisting of O, N, and S, or Rand Rare hydrocarbyl groups having from 1 to 3 carbon atoms joined to form a nitrogen-containing heterocyclic structure; and Qis a anion.

Synthesis of chabazite-containing molecular sieves and their use in the conversion of oxygenates to olefins

Growing community of inventors

Hackettstown, NJ, United States of America

Matu J Shah