Uop Lcc

Thomas M Reynolds

Stephen T Wilson

Paul T Barger

John Qianjun Chen

Wharton Sinkler

Robert W Broach

Natasha Erdman

Gregory J Gajda

Robert L Patton

David A Lesch

Deng-Yang Jan

Robert J Schmidt

Mathias P Koljack

Christopher J Garrett

Edith M Flanigen

Jennifer S Holmgren

John A Karch

Hemant W Dandekar

John I Hammerman

Hermant W Dandekar

Cara Moy Roeseler

A catalyst for converting methanol to light olefins and the process for making and using the catalyst are disclosed and claimed. SAPO-34 is a specific catalyst that benefits from its preparation in accordance with this invention. A seed material is used in making the catalyst that has a higher content of the EL metal than is found in the principal part of the catalyst. The molecular sieve has predominantly a roughly rectangular parallelepiped morphology crystal structure with a lower fault density and a better selectivity for light olefins.

Enhancement of molecular sieve performance

A process for converting polyalkylaromatics to monoalkylaromatics, particularly cumene, in the presence of a modified LZ-210 zeolite catalyst is disclosed. The process attains greater selectivity, reduced formation of undesired byproducts, and increased activity.

Aromatic transalkylation using a modified LZ-210 zeolite

A process for converting polyalkylaromatics to monoalkylaromatics, particularly cumene, in the presence of a modified LZ-210 zeolite is disclosed. The process attains greater selectivity, reduced formation of undesired byproducts, and increased activity.

Aromatic transalkylation using a LZ-210 zeolite

A process is presented for the formation of a SAPO-34 catalyst product. The process creates a harder, more attrition resistant catalyst for use in the MTO process.

Attrition resistant MTO catalyst

A catalyst for converting methanol to light olefins along with the process itself are disclosed and claimed. The catalyst is a metalloaluminophosphate molecular sieve having the empirical formula (EL,Al,P,)O,where EL is a metal such as silicon or magnesium and x, y and z are the mole fractions of EL, Al and P respectively. The molecular sieve has predominantly a plate crystal morphology in which the average smallest crystal dimension is at least 0.1 microns and has an aspect ratio of no greater than 5. Use of this catalyst gives a product with a larger amount of ethylene versus propylene.

Metallo aluminophosphate molecular sieve with cubic crystal morphology and methanol to olefin process using the sieve

A catalyst for converting methanol to light olefins along with the process itself are disclosed and claimed. The catalyst is a metalloaluminophosphate molecular sieve having the empirical formula (EL.sub.x Al.sub.y P.sub.z)O.sub.2 where EL is a metal such as silicon or magnesium and x, y and z are the mole fractions of EL, Al and P respectively. The molecular sieve has a crystal morphology in which the average smallest crystal dimension is at least 0.1 microns. Use of this catalyst gives a product with a larger amount of ethylene versus propylene.

Metallo aluminophosphate molecular sieve with novel crystal morphology

This invention is drawn to a process for isomerizing a non-equilibrium mixture of xylenes and ethylbenzene using a silicoaluminophosphate molecular sieve which is enriched in framework silicon at the surface, resulting in a greater yield of para-xylene compared to prior-art processes.

Aromatic isomerization using a modified silicoaluminophosphate

This invention presents a novel MgAPSO molecular sieve, containing a critical range of magnesium in the sieve framework and having a small crystallite size, which is particularly active for hydrocarbon conversion. The sieve advantageously is incorporated, along with a platinum-group metal, into a catalyst formulation which is useful for isomerization. When utilized in a process for isomerizing a non-equilibrium mixture of xylenes containing ethylbenzene, a greater yield of para-xylene is obtained compared to prior-art processes.

Discrete molecular sieve and use

This invention presents a novel MgAPSO molecular sieve, containing a critical range of magnesium: in the sieve framework and having a small crystallite size, which is particularly active for hydrocarbon conversion. The sieve advantageously is incorporated, along with a platinum-group metal, into a catalyst formulation which is useful for isomerization. When utilized in a process for isomerizing a non-equilibrium mixture of xylenes containing ethylbenzene, a greater yield of para-xylene is obtained compared to prior-art processes.

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Mobile, AL, United States of America

Thomas M Reynolds