Paul Kirkland Ellis

US Patent:

7745675, Jun 29, 2010

Filed:

Dec 20, 2006

Appl. No.:

11/642421

Inventors:

Paul E. Ellis - Sugar Land TX, US
Gopalakrishnan G. Juttu - Sugar Land TX, US
Alla K. Khanmamedova - Sugar Land TX, US
Scott F. Mitchell - The Woodlands TX, US
Scott A. Stevenson - Houston TX, US

Assignee:

Saudi Basic Industries Corporation - Riyadh

International Classification:

C07C 2/42
B01J 38/42
B01J 38/44
B01J 38/10

US Classification:

585418, 585419, 585904, 502 35, 502 37, 502 38, 502 53, 502 55

Abstract:

This invention relates to a process for regeneration of a zeolite catalyst, specifically an aluminosilicate zeolite with germanium substituted in the framework for silicon and with platinum deposited on the zeolite. The catalyst may be used in a process for aromatization of alkanes, specifically C-Calkanes. The regeneration process 1) removes coke and sulfur from the catalyst via oxidation, 2) redisperses platinum on the surface of the catalyst via chlorine gas, 3) removes chlorine and bind Pt to the surface of the zeolite by steaming, 4) reduces the catalyst in hydrogen, and 5) optionally, resulfides the catalyst. The zeolite may be a MFI zeolite. The catalyst may be bound with an inert material which does not act as a binding site for platinum during the regeneration process, for example, silica.

US Patent:

7902413, Mar 8, 2011

Filed:

Apr 12, 2007

Appl. No.:

11/786590

Inventors:

Scott A. Stevenson - Houston TX, US
Dustin B. Farmer - Houston TX, US
Scott F. Mitchell - The Woodlands TX, US
Gopalakrishnan G. Juttu - Sugar Land TX, US
Alla K. Khanmamedova - Sugar Land TX, US
Paul E. Ellis - Sugar Land TX, US

Assignee:

Saudi Basic Industries Corporation - Riyadh

International Classification:

C07C 2/76

US Classification:

585419, 585418

Abstract:

This invention relates to a process for the aromatization of Cto Calkanes, such as hexane, heptane and octane, to aromatics, such as benzene, ethyl benzene, toluene and xylenes, with a germanium-containing zeolite catalyst. The catalyst is a non-acidic aluminum-silicon-germanium zeolite on which a noble metal, such as platinum, has been deposited. The zeolite structure may be of MFI, BEA, MOR, LTL or MTT. The zeolite is made non-acidic by being base-exchanged with an alkali metal or alkaline earth metal, such as cesium, potassium, sodium, rubidium, barium, calcium, magnesium and mixtures thereof, to reduce acidity. The catalyst is sulfur tolerant and may be pretreated with a sulfur compound, i. e. , sulfided. The hydrocarbon feed may contain sulfur up to 1000 ppm.

US Patent:

8153852, Apr 10, 2012

Filed:

Apr 29, 2009

Appl. No.:

12/387179

Inventors:

Paul E. Ellis - Sugar Land TX, US
Gopalakrishnan G. Juttu - Glen Mills PA, US
Alla K. Khanmamedova - Sugar Land TX, US
Scott F. Mitchell - The Woodlands TX, US
Scott A. Stevenson - Houston TX, US

Assignee:

Saudi Basic Industries Corporation - Riyadh

International Classification:

C07C 2/42

US Classification:

585418, 585419

Abstract:

This invention is for a catalyst for conversion of alkanes having two to six carbon atoms per molecule to aromatics. The catalyst is a MFI zeolite with a crystallite size of less than 15 microns with, in addition to silicon and aluminum, germanium as a framework element. Platinum is deposited on the zeolite. The zeolite may contain other optional tetravalent and trivalent elements in the zeolite framework. The catalyst is synthesized by preparing a zeolite containing aluminum, silicon, germanium and, optionally, other elements in the framework, calcining the zeolite and depositing platinum on the zeolite. The catalyst may be used for aromatization of alkanes, such as propane, to aromatics, such as benzene, toluene and xylenes.

US Patent:

20030135071, Jul 17, 2003

Filed:

Dec 20, 2002

Appl. No.:

10/325093

Inventors:

Paulette Hazin - Houston TX, US
Paul Ellis - Sugar Land TX, US

Assignee:

Saudi Basic Industries Corporation

International Classification:

B01J023/22
C07C051/16

US Classification:

562/547000, 502/312000, 502/209000

Abstract:

A catalyst composition for the selective conversion of an alkane to an unsaturated carboxylic acid having the general formula:wherein optional element M may be one or more selected from aluminum, copper, lithium, sodium, potassium, rubidium, cesium, gallium, phosphorus, iron, rhenium, cobalt, chromium, manganese, arsenic, indium, thallium, bismuth, germanium, tin, cerium or lanthanum; a is 0.05 to 0.99, b is 0.01 to 0.99, c is 0.01 to 0.99, d is 0 to 0.5 and x is determined by the valence requirements of the other components of the catalyst composition. This catalyst is prepared by co-precipitation of compounds of molybdenum, vanadium, niobium, silver and M to form a mixed metal oxide catalyst. This catalyst can be used for the selective conversion of an alkane to an unsaturated carboxylic acid in a one-step process or the ammoxidation of alkanes and olefins.

US Patent:

20040192966, Sep 30, 2004

Filed:

Mar 23, 2004

Appl. No.:

10/806862

Inventors:

Paulette Hazin - Houston TX, US
Paul Ellis - Sugar Land TX, US

Assignee:

Saudi Basic Industries Corporation

International Classification:

B01J023/24
C07C051/16

US Classification:

562/547000, 502/312000

Abstract:

A catalyst composition having the formula: wherein M is gallium, bismuth, silver or gold, a is 0.01 to 1, b is 0.01 to 1, c is 0.01 to 1, d is 0.01 to 1 and x is determined by the valence requirements of the other components. Other metals, such as tantalum, titanium, aluminum, zirconium, chromium, manganese, iron, ruthenium, cobalt, rhodium, nickel, platinum, boron, arsenic, lithium, sodium, potassium, rubidium, calcium, beryllium, magnesium, cerium, strontium, hafnium, phosphorus, europium, gadolinium, dysprosium, holmium, erbium, thulium, terbium, ytterbium, lutetium, lanthanum, scandium, palladium, praseodymium, neodymium, yttrium, thorium, tungsten, cesium, zinc, tin, germanium, silicon, lead, barium or thallium may also be components of the catalyst. This catalyst is prepared by co-precipitation of metal compounds which are calcined to form a mixed metal oxide catalyst that can be used for the selective conversion of an alkane to an unsaturated carboxylic acid in a one-step process.

US Patent:

20070232828, Oct 4, 2007

Filed:

May 24, 2007

Appl. No.:

11/805656

Inventors:

Paulette Hazin - Houston TX, US
Paul Ellis - Sugar Land TX, US

International Classification:

C07C 61/16

US Classification:

562400000

Abstract:

A catalyst composition having the formula: MoVSbNbMOwherein M is gallium, bismuth, silver or gold, a is 0.01 to 1, b is 0.01 to 1, c is 0.01 to 1, d is 0.01 to 1 and x is determined by the valence requirements of the other components. Other metals, such as tantalum, titanium, aluminum, zirconium, chromium, manganese, iron, ruthenium, cobalt, rhodium, nickel, platinum, boron, arsenic, lithium, sodium, potassium, rubidium, calcium, beryllium, magnesium, cerium, strontium, hafnium, phosphorus, europium, gadolinium, dysprosium, holmium, erbium, thulium, terbium, ytterbium, lutetium, lanthanum, scandium, palladium, praseodymium, neodymium, yttrium, thorium, tungsten, cesium, zinc, tin, germanium, silicon, lead, barium or thallium may also be components of the catalyst. This catalyst is prepared by co-precipitation of metal compounds which are calcined to form a mixed metal oxide catalyst that can be used for the selective conversion of an alkane to an unsaturated carboxylic acid in a one-step process.

US Patent:

20070238608, Oct 11, 2007

Filed:

May 24, 2007

Appl. No.:

11/805797

Inventors:

Paulette Hazin - Houston TX, US
Paul Ellis - Sugar Land TX, US

International Classification:

B01J 23/00
B01J 20/00
B01J 21/00

US Classification:

502241000, 502307000, 502312000

Abstract:

A catalyst composition having the formula: MoVSbNbMOwherein M is gallium, bismuth, silver or gold, a is 0.01 to 1, b is 0.01 to 1, c is 0.01 to 1, d is 0.01 to 1 and x is determined by the valence requirements of the other components. Other metals, such as tantalum, titanium, aluminum, zirconium, chromium, manganese, iron, ruthenium, cobalt, rhodium, nickel, platinum, boron, arsenic, lithium, sodium, potassium, rubidium, calcium, beryllium, magnesium, cerium, strontium, hafnium, phosphorus, europium, gadolinium, dysprosium, holmium, erbium, thulium, terbium, ytterbium, lutetium, lanthanum, scandium, palladium, praseodymium, neodymium, yttrium, thorium, tungsten, cesium, zinc, tin, germanium, silicon, lead, barium or thallium may also be components of the catalyst. This catalyst is prepared by co-precipitation of metal compounds which are calcined to form a mixed metal oxide catalyst that can be used for the selective conversion of an alkane to an unsaturated carboxylic acid in a one-step process.

US Patent:

20110132804, Jun 9, 2011

Filed:

Dec 4, 2009

Appl. No.:

12/592883

Inventors:

Scott Stevenson - Houston TX, US
Paul E. Ellis - Sugar Land TX, US
Mike Mier - Waller TX, US
Dustin Farmer - Houston TX, US
Alla Khanmamedova - Sugar Land TX, US
Scott Mitchell - The Woodlands TX, US

Assignee:

Saudi Basic Industries Corporation - Riyadh

International Classification:

C10G 35/06

US Classification:

208 65

Abstract:

This invention relates to a process for the increasing the octane number of a naphtha hydrocarbon feed having a predominantly paraffin content with a germanium-containing zeolite catalyst. The catalyst is a non-acidic germanium zeolite on which a noble metal, such as platinum, has been deposited. The zeolite structure may be of MTW, MWW, MEL, TON, MRE, FER, MFI, BEA, MOR, LTL or MTT. The zeolite is made non-acidic by being base-exchanged with an alkali metal or alkaline earth metal, such as cesium, potassium, sodium, rubidium, barium, calcium, magnesium and mixtures thereof, to reduce acidity. The catalyst is sulfur tolerant. The hydrocarbon feed may contain sulfur up to 1000 ppm. The present invention could be applicable to a feedstream which is predominantly naphthenes and paraffins.