Susan K Lambert

US Patent:

49578910, Sep 18, 1990

Filed:

Dec 11, 1989

Appl. No.:

7/448445

Inventors:

Johann W. A. Sachtler - Des Plaines IL
Randy J. Lawson - Palatine IL
Susan L. Lambert - Rolling Meadows IL

Assignee:

UOP - Des Plaines IL

International Classification:

B01J 2928

US Classification:

502 61

Abstract:

This invention presents a novel catalyst formulation for the isomerization of alkylaromatic hydrocarbons. The catalyst comprises at least one Group VIII metal, a pentasil zeolite wherein a portion of the aluminum atom has been replaced with gallium atoms and a matrix material of zirconia-alumina. 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.

US Patent:

51356422, Aug 4, 1992

Filed:

Feb 19, 1991

Appl. No.:

7/656927

Inventors:

Susan L. Lambert - Rolling Meadows IL

Assignee:

UOP - Des Plaines IL

International Classification:

C10G 1102
C10G 4702

US Classification:

208120

Abstract:

This invention relates to novel silicon enhanced aluminas (SEAL), processes to prepare them, and hydrocarbon conversion processes using the SEALs. The SEAL compositions have a bulk empirical formula of Al. sub. 2-x Si. sub. x O. sub. 3 F. sub. x where x varies from about 0. 01 to about 0. 5. This SEAL material has a three-dimensional pore structure with the pores having diameters in the range of about 20 to about 300. ANG. , a crystal structure characteristic of alumina, and where the surface of the SEAL has a higher silicon concentration than the interior of the SEAL. The SEAL is prepared by contacting an alumina with a fluorosilicate salt. This SEAL can be calcined to give a calcined seal with a formula Al. sub. 2-x Si. sub. x O. sub. 3 F. sub. y where x is as defined above and y varies from 0. 01 to x. The calcined SEAL contains both strong and weak acid sites.

US Patent:

50082337, Apr 16, 1991

Filed:

Sep 7, 1989

Appl. No.:

7/404550

Inventors:

Susan L. Lambert - Rolling Meadows IL

Assignee:

UOP - Des Plaines IL

International Classification:

B01J 2112
B01J 2712

US Classification:

502231

Abstract:

This invention relates to novel silicon enhanced aluminas (SEAL) and processes to prepare them. The SEAL compositions have a bulk empirical formula of Al. sub. 2-x Si. sub. x O. sub. 3 F. sub. x where x varies from about 0. 01 to about 0. 5. This SEAL material has a three-dimensional pore structure with the pores having diameters in the range of about 20 to about 300. ANG. , a crystal structure characteristic of alumina, and where the surface of the SEAL has a higher silicon concentration than the interior of the SEAL. The SEAL is prepared by contacting an alumina with a fluorosilicate salt. This SEAL can be calcined to give a calcined seal with a formula Al. sub. 2-x Si. sub. x O. sub. 3 F. sub. y where x is as defined above and y varies from 0. 01 to x. The calcined SEAL contains both strong and weak acid sites.

US Patent:

51396483, Aug 18, 1992

Filed:

Dec 12, 1991

Appl. No.:

7/805752

Inventors:

Susan L. Lambert - Rolling Meadows IL

Assignee:

UOP - Des Plaines IL

International Classification:

C10G 4704

US Classification:

208111

Abstract:

Hydrocarbons are reduced in molecular weight in a conversion process wherein they are contacted with a solid catalyst comprising (i) a pillared clay and (ii) an alumina, such as gamma alumina, which has been isomorphously substituted with silicon. The treated alumina will have a silicon to fluorine mole ratio of about 1. 0:1. 0 to about 50. 0:1. The process may comprise the fluidized catalytic cracking of cycle oils. For use in hydrocracking, the catalyst contains a metal hydrogenation component and possibly one or more other inorganic oxides such as silica-alumina. Other non-zeolitic materials such as silica-alumina may also be composited into the catalysts.

US Patent:

53385276, Aug 16, 1994

Filed:

Aug 20, 1992

Appl. No.:

7/932538

Inventors:

Susan L. Lambert - Rolling Meadows IL

Assignee:

UOP - Des Plaines IL

International Classification:

C01B 3332

US Classification:

423332

Abstract:

This invention relates to a novel zirconium silicate compound which has the formula M. sub. x Si. sub. y Zr. sub. z O. sub. w where M is an ammonium ion, a hydronium ion, an alkali metal or mixtures thereof and x, y, z and w are the mole fractions of M, silicon, zirconium and oxygen respectively. The composition is characterized in that it has a unique x-ray powder diffraction pattern, has a surface area from about 80 to about 400 and has a layered structure. These compositions are prepared by hydrothermal crystallization of a reaction mixture containing reactive sources of the alkali metal, silicon, zirconium and water. Finally, these compositions may be used in various hydrocarbon conversion processes.

US Patent:

52599485, Nov 9, 1993

Filed:

Sep 3, 1992

Appl. No.:

7/940412

Inventors:

Susan L. Lambert - Rolling Meadows IL
Michael W. Schoonover - Arlington Heights IL

Assignee:

UOP - Des Plaines IL

International Classification:

C10G 1108
C10G 4708
C07C 270

US Classification:

208111

Abstract:

This invention relates to a hydrocarbon conversion processes, e. g. , hydrocracking, cracking, alkylation, etc. , using a silicon enhanced amorphous silica-alumina (SEASAL) composition. The composition is characterized in that from about 3 to about 22 mole percent of the aluminum atoms in a host amorphous silica-alumina have been replaced by silicon atoms. Additionally, the SEASAL contains from about 0. 5 to about 10 weight percent fluoride and has a cracking activity of at least 30%. The SEASAL is prepared by reacting a host amorphous silica-alumina with a fluorosilicate salt, thereby removing aluminum atoms and inserting silicon atoms.

US Patent:

50807781, Jan 14, 1992

Filed:

Jun 29, 1990

Appl. No.:

7/546610

Inventors:

Susan L. Lambert - Rolling Meadows IL

Assignee:

UOP - Des Plaines IL

International Classification:

C10G 4704

US Classification:

208111

Abstract:

Hydrocarbons are reduced in molecular weight in a conversion process wherein they are contacted with a non-zeolitic solid catalyst comprising an alumina, such as gamma alumina, which has been isomorphously substituted with silicon. The treated alumina will have a fluorine to silicon mole ratio of about 0. 8:1 to about 1. 3:1. For use in hydrocracking, the catalyst contains a metal hydrogenation component and possibly one or more other inorganic oxides such as silica-alumina. Other non-zeolitic materials such as delaminated clay or silica-alumina may also be composited into the catalysts.

US Patent:

48869279, Dec 12, 1989

Filed:

Dec 8, 1988

Appl. No.:

7/281424

Inventors:

J. W. Adriaan Sachtler - Des Plaines IL
R. Joe Lawson - Palatine IL
Susan L. Lambert - Rolling Meadows IL

Assignee:

UOP - Des Plaines IL

International Classification:

C07C 522

US Classification:

585 481

Abstract:

This invention presents a process for isomerizing a non-equilibrium mixture of xylenes containing ethylbenzene, using a novel catalyst formulation comprising at least one Group VIII metal, a gallium-substituted pentasil zeolite and a matrix material of zirconia-alumina.