Josiane M Ginestra

US Patent:

6984310, Jan 10, 2006

Filed:

Dec 17, 2002

Appl. No.:

10/321810

Inventors:

Josiane M. Ginestra - Richmond TX, US
Russell C. Ackerman - Katy TX, US
Christian G. Michel - Houston TX, US

Assignee:

Shell Oil Company - Houston TX

International Classification:

C01G 35/06
C01G 47/02
C01G 47/04
C01G 11/02
B01J 23/00

US Classification:

208137, 208112, 208114, 208123, 208124, 208136, 208138, 208251 R, 208254 R, 502211, 502213, 502314, 502315, 502316, 502320, 502322, 502323, 502327, 502332, 502333, 502334, 502335, 502336, 502337, 502338, 502339, 502355, 502415, 502439

Abstract:

Alumina having a pore structure characterized by the absence of macropores, no more than 5% of the total pore volume in pores greater than 350 Å, a high pore volume (greater than 0. 8 cc/g measured by mercury intrusion) and a bi-modal pore volume distribution character, where the two modes are separated by 10 to 200 Å, and the primary pore mode is larger than the median pore diameter (MPD), calculated either by volume or by surface area, the MPD by volume being itself larger than the MPD by surface area. Also provided are catalysts made from and processes using such alumina.

US Patent:

7696120, Apr 13, 2010

Filed:

Jan 19, 2005

Appl. No.:

11/039677

Inventors:

Josiane Marie-Rose Ginestra - Richmond TX, US
James Dallas Seamans - The Woodlands TX, US
Kenneth Scott Lee - The Woodlands TX, US

Assignee:

Shell Oil Company - Houston TX

International Classification:

B01J 38/02
B01J 21/20
B01J 38/48
B01J 38/62
B01J 38/50
B01J 38/12

US Classification:

502 56, 502 20, 502 22, 502 29, 502 38, 502514

Abstract:

Disclosed is method for restoring catalytic activity to a hydroprocessing catalyst that has become spent due to its use or to the deposition of carbon thereon. The method includes a carbon reduction step whereby carbon is removed from the spent hydroprocessing catalyst in a controlled manner to within a specifically defined concentration range. Following the carbon removal step, the resulting catalyst, having a reduced concentration of carbon, is subjected to a chelation treatment whereby the resulting carbon-reduced catalyst is contacted with a chelating agent and aged for a time period necessary for realizing the benefit from the controlled carbon reduction step. In a preferred embodiment, the catalyst resulting from the chelation treatment is subjected to a sulfurization treatment involving the incorporation of elemental sulfur therein and contacting therewith an olefin.

US Patent:

7790652, Sep 7, 2010

Filed:

Sep 15, 2004

Appl. No.:

10/941462

Inventors:

Russell Craig Ackerman - Houston TX, US
Josiane Marie-Rose Ginestra - Richmond TX, US
Christian Gabriel Michel - Ossining NY, US

Assignee:

Shell Oil Company - Houston TX

International Classification:

B01J 23/24
B01J 23/40
B01J 23/74
C01F 7/02

US Classification:

502313, 502315, 502316, 423625, 423628

Abstract:

A method of hydroprocessing a heavy hydrocarbon feedstock using a hydroprocessing catalyst having specific properties making it effective in the hydroconversion of at least a portion of the heavy hydrocarbon feedstock to lighter hydrocarbons. The hydroprocessing catalyst comprises a Group VIB metal component (e. g. , Cr, Mo, and W), a Group VIII metal component (e. g. , Ni and Co) and, optionally, a potassium metal component that are supported on a support material comprising alumina. The alumina has novel physical properties that, in combination with the catalytic components, provide for the hydroprocessing catalyst. The hydroprocessing catalyst is particularly effective in the conversion of the heavy hydrocarbon feedstock. The alumina is characterized as having a high pore volume and a high surface area with a large proportion of the pore volume being present in the pores within a narrow pore diameter distribution about a narrowly defined range of median pore diameters. The support material preferably does not contain more than a small concentration of silica.

US Patent:

7820579, Oct 26, 2010

Filed:

Jan 19, 2005

Appl. No.:

11/038291

Inventors:

Josiane Marie-Rose Ginestra - Richmond TX, US
James Dallas Seamans - The Woodlands TX, US
Kenneth Scott Lee - The Woodlands TX, US

Assignee:

Shell Oil Company - Houston TX

International Classification:

B01J 38/50
B01J 38/62
B01J 38/12

US Classification:

502 29, 502 28, 502 38

Abstract:

A method of restoring catalytic activity to a spent hydroprocessing catalyst that has a first carbon concentration. The concentration of carbon on the spent hydroprocessing catalyst is reduced to provide a carbon-reduced catalyst having a second carbon concentration that is less than the first carbon concentration. The carbon-reduced catalyst is exposed to a solution, comprising a chelating agent and a solvent, for an aging time period sufficient to provide for a restored catalytic activity thereby resulting in an aged catalyst having incorporated therein the chelating agent and the solvent. The aged catalyst is exposed to conditions, including a drying temperature, so as to remove from the aged catalyst a portion of the solvent without removing a significant portion of the chelating agent from the aged catalyst thereby resulting in a dried aged catalyst. The dried aged catalyst is then sulfur treated to thereby provide a restored catalyst. The restored catalyst and those catalysts made by the treatment method can be used in a hydroprocessing process comprising contacting the restored catalyst with a hydrocarbon feedstock under hydroprocessing conditions.

US Patent:

8168557, May 1, 2012

Filed:

Sep 9, 2010

Appl. No.:

12/878825

Inventors:

Josiane Marie-Rose Ginestra - Richmond TX, US
James Dallas Seamans - The Woodlands TX, US
Kenneth Scott Lee - The Woodlands TX, US

Assignee:

Shell Oil Company - Houston TX

International Classification:

B01J 27/02
B01J 27/047
B01J 27/043
B01J 23/00
B01J 23/10
C10G 17/00
C10G 19/00
C10G 21/00
C10G 25/00
C10G 27/00
C10G 29/00
C10G 31/00

US Classification:

502216, 502219, 502222, 502300, 502305, 502325, 208177

Abstract:

A method of restoring catalytic activity to a spent hydroprocessing catalyst that has a first carbon concentration. The concentration of carbon on the spent hydroprocessing catalyst is reduced to provide a carbon-reduced catalyst having a second carbon concentration that is less than the first carbon concentration. The carbon-reduced catalyst is exposed to a solution, comprising a chelating agent and a solvent, for an aging time period sufficient to provide for a restored catalytic activity thereby resulting in an aged catalyst having incorporated therein the chelating agent and the solvent. The aged catalyst is exposed to conditions, including a drying temperature, so as to remove from the aged catalyst a portion of the solvent without removing a significant portion of the chelating agent from the aged catalyst thereby resulting in a dried aged catalyst. The dried aged catalyst is then sulfur treated to thereby provide a restored catalyst. The restored catalyst and those catalysts made by the treatment method can be used in a hydroprocessing process comprising contacting the restored catalyst with a hydrocarbon feedstock under hydroprocessing conditions.

US Patent:

8372268, Feb 12, 2013

Filed:

Oct 1, 2009

Appl. No.:

12/572097

Inventors:

Josiane Marie-Rose Ginestra - Richmond TX, US
John G. Kester - The Woodlands TX, US
David Andrew Komar - Magnolia TX, US

Assignee:

Shell Oil Company - Houston TX

International Classification:

C10G 47/04

US Classification:

208112, 502313, 502314, 502315

Abstract:

A catalyst composition that is especially useful in the hydroconversion of pitch, micro carbon residue and sulfur contents of a heavy hydrocarbon feedstock without the excessive formation of sediment. The catalyst composition is a reasonably high surface area composition containing alumina and a low molybdenum content with a high ratio of nickel-to-molybdenum. The catalyst composition further has a unique pore distribution that in combination with the special metals loading provide for good conversion of pitch and micro carbon residue without an excessive yield of sediment.

US Patent:

20060116542, Jun 1, 2006

Filed:

Nov 28, 2005

Appl. No.:

11/287604

Inventors:

David Brown - Hercules CA, US
Josiane Ginestra - Richmond TX, US

International Classification:

C07C 6/00

US Classification:

585643000

Abstract:

An olefin metathesis process and a catalyst composition suitable for such process comprising (a) rhenium, (b) one or more metal(s) from Columns 5 and 6 of the Periodic Table, and (c) a support made from an alumina; wherein surface area of the catalyst is at least 200 m/g as determined by ASTM D-3663-03.

US Patent:

20100006475, Jan 14, 2010

Filed:

Jul 2, 2009

Appl. No.:

12/496848

Inventors:

Josiane Marie-Rose GINESTRA - Richmond TX, US

International Classification:

C10G 47/04
B01J 23/88

US Classification:

208112, 502315

Abstract:

A catalyst composition that provides for a high percentage conversion of the pitch component of a heavy hydrocarbon feedstock and a process of using the catalyst composition. The catalyst composition comprises a nickel component, a molybdenum component in an amount less than 12 wt % of the catalyst composition, and it may also include an alumina support material having special properties. The weight ratio of the nickel component-to-molybdenum component exceeds 0.25, and the support material preferably has a median pore diameter of from 100-140 Å. The catalyst composition has a characteristically unique Raman spectrum that distinguishes it over other compositions.