Christopher P Dillon

US Patent:

6914029, Jul 5, 2005

Filed:

Nov 1, 2002

Appl. No.:

10/286066

Inventors:

Mark E. Davis - Pasadena CA, US
Christopher J. Dillon - San Rafael CA, US
Joseph H. Holles - Houghton MI, US
Jay A. Labinger - Claremont CA, US
Axel Brait - Pasadena CA, US

Assignee:

California Institute of Technology - Pasadena CA

International Classification:

B01J031/00

US Classification:

502150, 502208, 568399, 585467, 528 10

Abstract:

An active and selective hydrocarbon partial oxidation catalyst comprises an activated partially-reduced polyoxometallate, preferably niobium polyoxomolybdate, that is prepared from a suitable polyoxoanion, which has been exchanged with a suitable cation and activated by heating to an activation effective temperature in the presence of a suitable reducing agent such as pyridinium. Cand Chydrocarbons may be partially oxidized selectively to acrylic acid and maleic acid.

US Patent:

7019165, Mar 28, 2006

Filed:

Apr 11, 2005

Appl. No.:

11/103205

Inventors:

Mark E. Davis - Pasadena CA, US
Christopher J. Dillon - San Rafael CA, US
Joseph H. Holles - Houghton MI, US
Jay A. Labinger - Claremont CA, US
Axel Brait - Pasadena CA, US

Assignee:

California Institute of Technology - Pasadena CA

International Classification:

C07C 63/14
C07C 63/307
C07C 68/313

US Classification:

562480, 562400, 568399, 502208, 502150, 585467

Abstract:

An active and selective hydrocarbon partial oxidation catalyst comprises an activated partially-reduced polyoxometallate, preferably niobium polyoxomolybdate, that is prepared from a suitable polyoxoanion, which has been exchanged with a suitable cation and activated by heating to an activation effective temperature in the presence of a suitable reducing agent such as pyridinium. Cand Chydrocarbons may be partially oxidized selectively to acrylic acid and maleic acid.

US Patent:

8563456, Oct 22, 2013

Filed:

Oct 3, 2008

Appl. No.:

12/245531

Inventors:

Christopher J. Dillon - Manhattan Beach CA, US
Theodorus Maesen - Point Richmond CA, US
Alexander E. Kuperman - Orinda CA, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA

International Classification:

B01J 21/16
C01B 33/26
C01B 33/24

US Classification:

502 80, 502 84, 502328, 4233281, 423331

Abstract:

This invention is directed to hydrodemetallization catalysts and hydrodemetallization processes employing a magnesium aluminosilicate clay. The magnesium aluminosilicate clay has a characteristic Si NMR spectrum. The magnesium aluminosilicate clay is the product of a series of specific reaction steps. Briefly, the magnesium aluminosilicate clay employed in the catalyst and process of the invention is made by combining a silicon component, an aluminum component, and a magnesium component, under aqueous conditions and at an acidic pH, to form a first reaction mixture and subsequently the pH of the first reaction mixture is adjusted to greater than about 7. 5 to form a second reaction mixture. The second reaction mixture is allowed to react under conditions sufficient to form the magnesium aluminosilicate clay. The resulting magnesium aluminosilicate clay combines high surface area and activity for use in hydrodemetallization catalysts and processes.

US Patent:

20120000828, Jan 5, 2012

Filed:

Sep 19, 2011

Appl. No.:

13/236438

Inventors:

Christopher J. Dillon - Los Angeles CA, US
Theodorus Maesen - Point Richmond CA, US
Alexander E. Kuperman - Orinda CA, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA

International Classification:

C10G 29/04

US Classification:

208253

Abstract:

This invention is directed to hydrodemetallization catalysts and hydrodemetallization processes employing a magnesium aluminosilicate clay. The magnesium aluminosilicate clay has a characteristic Si NMR spectrum. The magnesium aluminosilicate clay is the product of a series of specific reaction steps. Briefly, the magnesium aluminosilicate clay employed in the catalyst and process of the invention is made by combining a silicon component, an aluminum component, and a magnesium component, under aqueous conditions and at an acidic pH, to form a first reaction mixture and subsequently the pH of the first reaction mixture is adjusted to greater than about 7.5 to form a second reaction mixture. The second reaction mixture is allowed to react under conditions sufficient to form the magnesium aluminosilicate clay. The resulting magnesium aluminosilicate clay combines high surface area and activity for use in hydrodemetallization catalysts and processes.