Christopher S Dean

US Patent:

8409428, Apr 2, 2013

Filed:

Jun 28, 2006

Appl. No.:

11/477275

Inventors:

Christopher F. Dean - Houston TX, US
Musaed Salem Musaed Al-Ghrami Al-Ghamdi - Dhahran, SA
Khurshid K. Alam - Alkhobar, SA
Mohammed Abdul Bari Siddiqui - Dhahran, SA
Shakeel Ahmed - Dhahran, SA

Assignee:

Saudi Arabian Oil Company - Dhahran
King Fahd University of Petroleum and Minerals - Dhahran

International Classification:

C10G 25/05

US Classification:

208213, 208208 R

Abstract:

The present invention concerns a novel additive composition for reducing sulfur content of a catalytically cracked gasoline fraction. This additive composition comprises a support consisting of porous clay into which a first metal from group IVB is incorporated and a second metal from group IIB is impregnated. Preferably, the first incorporated metal is zirconium and the second impregnated metal is zinc. The sulfur reduction additive is used in combination with a conventional cracking catalyst in a fluidized catalytic cracking process to convert hydrocarbon feed stocks into gasoline having comparatively lower sulfur content and other liquid products.

US Patent:

20130137909, May 30, 2013

Filed:

Jul 27, 2012

Appl. No.:

13/560570

Inventors:

Christopher F. DEAN - Houston TX, US
Allan Birkett FOX - Dhahran, SA
Daniel C. LONGSTAFF - Dhahran, SA

International Classification:

C10G 35/04

US Classification:

585324, 585651

Abstract:

A process for producing a product stream consisting primarily of the lower olefins ethylene, propylene and butylenes, and of gasoline is provided. The process includes cracking a mixture of paraffinic naphtha feedstream and regenerated catalyst in a downflow reactor. The reaction product stream is separated from the spent catalyst and subsequently fractionated into individual product streams, while the spent catalyst is regenerated and recycled.

US Patent:

20130210613, Aug 15, 2013

Filed:

Feb 7, 2013

Appl. No.:

13/761662

Inventors:

Christopher F. DEAN - Houston TX, US
Musaed Salem Musaed Al-Ghrami AL-GHAMDI - Dhahran, SA
Khurshid K. ALAM - Alkhobar, SA
Mohammed Abdul Bari SIDDIQUI - Dhahran, SA
Shakeel AHMED - Dhahran, SA

Assignee:

KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS - Dhahran
Saudi Arabian Oil Company - Dhahran

International Classification:

B01J 29/08

US Classification:

502 84, 502 80

Abstract:

The present invention concerns a novel additive composition for reducing sulfur content of a catalytically cracked gasoline fraction. This additive composition comprises a support consisting of porous clay into which a first metal from group IVB is incorporated and a second metal from group IIB is impregnated. Preferably, the first incorporated metal is zirconium and the second impregnated metal is zinc. The sulfur reduction additive is used in the form of a separate particle in combination with a conventional cracking catalyst in a fluidized catalytic cracking process to convert hydrocarbon feed stocks into gasoline having comparatively lower sulfur content and other liquid products.

US Patent:

20170369393, Dec 28, 2017

Filed:

Jun 1, 2017

Appl. No.:

15/610717

Inventors:

- Annandale NJ, US
Matthew S. METTLER - Somerville NJ, US
Charles M. SMITH - Princeton NJ, US
Ivy D. JOHNSON - Lawrenceville NJ, US
Jeffrey M. FITT - The Woodlands TX, US
Christopher M. DEAN - Spring TX, US

International Classification:

C07C 2/58
B01J 37/00
B01J 29/70
B01J 37/08

Abstract:

A process for the catalytic alkylation of an olefin with an isoparaffin comprises: contacting an olefin-containing feed with an isoparaffin-containing feed under alkylation conditions in the presence of a solid acid catalyst comprising a crystalline microporous material of the MWW framework type, wherein the olefin-containing feed comprises propylene and at least one other Cto Colefin.

US Patent:

20170369395, Dec 28, 2017

Filed:

Jun 1, 2017

Appl. No.:

15/610734

Inventors:

- Annandale NJ, US
Matthew S. METTLER - Somerville NJ, US
Jeffrey M. FITT - The Woodlands TX, US
Charles M. SMITH - Princeton NJ, US
Ivy D. JOHNSON - Lawrenceville NJ, US
Christopher M. DEAN - Spring TX, US
Ajit B. DANDEKAR - Clinton NJ, US

International Classification:

C07C 2/58
B01J 29/70

Abstract:

A process for the catalytic alkylation of an olefin with an isoparaffin is described in which a feed comprising at least one olefin and at least one isoparaffin is contacted with a solid acid catalyst under alkylation conditions effective for reaction between the olefin and the isoparaffin to produce an alkylated product. The solid acid catalyst comprises a crystalline microporous material of the MWW framework type, the feed comprises at least one C+ olefin and/or at least one C+ isoparaffin and the alkylated product comprises at least 20% wt % of C+ branched paraffins.

US Patent:

20140106958, Apr 17, 2014

Filed:

Dec 26, 2013

Appl. No.:

14/140742

Inventors:

- Dhahran, SA
- Shahran, SA
Musaed Salem AL-GHRAMI - Dhahran, SA
Christopher F. DEAN - Houston TX, US
Mohammed Abdul Bari SIDDIQUI - Dhahran, SA
Shakeel AHMED - Dhahran, SA

Assignee:

King Fahd University of Petroleum & Minerals - Dhahran
Saudi Arabian Oil Company - Dharan

International Classification:

B01J 29/08

US Classification:

502 1

Abstract:

Compositions and processes for their use as additives for reducing the sulfur content of FCC gasoline employ a support material montmorillonite clay material. A fluid catalytic cracking (FCC) mixture, therefore, is provided comprising an FCC catalyst and separate particles of sulfur reduction additive consisting of porous montmorillonite clay.