Patents by Inventor Arthur W. Chester

Arthur W. Chester has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7902103
    Abstract: The invention relates to the use of particulate silicone resins in the absence of added organic solvents with particulate inorganic materials to form structured bodies and in particular molecular sieve containing structured bodies. The silicone resin is used in the form of a particulate with an average particle size of less than 700 um. Upon calcining, the silicone resin is converted to silica which acts as a binder.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: March 8, 2011
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Jean W. Beeckman, Glenn R. Sweeten, Arthur W. Chester, John P. McWilliams, Dominick N. Mazzone
  • Patent number: 7803267
    Abstract: The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve as well as a cerium component which enhances the stability and sulfur reduction activity of the catalyst. The molecular sieve is normally a faujasite such as USY. The primary sulfur reduction component is normally a metal of Period 3 of the Periodic Table, preferably vanadium. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: September 28, 2010
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Arthur W. Chester, Terry G. Roberie, Hye Kyung C. Timken, Michael S. Ziebarth
  • Publication number: 20090270246
    Abstract: The invention relates to the use of particulate silicone resins in the absence of added organic solvents with particulate inorganic materials to form structured bodies and in particular molecular sieve containing structured bodies. The silicone resin is used in the form of a particulate with an average particle size of less than 700 um. Upon calcining, the silicone resin is converted to silica which acts as a binder.
    Type: Application
    Filed: June 30, 2009
    Publication date: October 29, 2009
    Inventors: Jean W. Beeckman, Glenn R. Sweeten, Arthur W. Chester, John P. McWilliams, Dominick N. Mazzone
  • Patent number: 7572749
    Abstract: The invention relates to the use of particulate silicone resins in the absence of added organic solvents with particulate inorganic materials to form structured bodies and in particular molecular sieve containing structured bodies. The silicone resin is used in the form of a particulate with an average particle size of less than 700 um. Upon calcining, the silicone resin is converted to silica which acts as a binder.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: August 11, 2009
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Jean W. Beeckman, Glenn R. Sweeten, Arthur W. Chester, John P. McWilliams, Dominick N. Mazzone
  • Patent number: 7507686
    Abstract: The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve as well as a cerium component which enhances the stability and sulfur reduction activity of the catalyst. The molecular sieve is normally a faujasite such as USY. The primary sulfur reduction component is normally a metal of Period 3 of the Periodic Table, preferably vanadium. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: March 24, 2009
    Assignee: W. R. Grace & Co. - Conn.
    Inventors: Arthur W. Chester, Hye Kyung Cho Timken, Terry G. Roberie, Michael S. Ziebarth
  • Patent number: 7476638
    Abstract: The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction additive comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve. The molecular sieve is normally a large pore size zeolite such as USY or zeolite beta or an intermediate pore size zeolite such as ZSM-5. The metal is normally a metal of Period 3 of the Periodic Table, preferably zinc or vanadium. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: January 13, 2009
    Assignee: W. R. Grace & Co. - Conn.
    Inventors: Arthur W. Chester, Hye Kyung Cho Timken, Terry G. Roberie, Michael S. Ziebarth
  • Patent number: 7326818
    Abstract: In a process for preparing a selectivated catalyst composition useful in the disproportionation of toluene, a catalyst comprising an acidic molecular sieve is contacted with a boron compound at a temperature in excess of 500° C.; and the resultant catalyst is then contacted with a medium containing hydrogen ions to at least partially restore the acid activity of the molecular sieve.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: February 5, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jean W. Beeckman, William G. Borghard, Arthur W. Chester, Robert A. Crane, Owen C. Feeley, John C. Fried, Dominick N. Mazzone, Glenn R. Sweeten
  • Patent number: 7255849
    Abstract: EMM-3 (ExxonMobil Material number 3) is a new crystalline microporous material with a framework of tetrahedral atoms connected by atoms capable of bridging the tetrahedral atoms, the tetrahedral atom framework being defined by the interconnections between the tetrahedrally coordinated atoms in its framework. EMM-3 can be prepared in aluminophosphate (AlPO) and metalloaluminophosphate (MeAPO) compositions with the hexamethonium template. It has a unique X-ray diffraction pattern, which identifies it as a new material. EMM-3 is stable to calcination in air, absorbs hydrocarbons, and is catalytically active for hydrocarbon conversion.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: August 14, 2007
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Karl G. Strohmaier, Arthur W. Chester, William R. Harrison, James C. Vartuli
  • Patent number: 7238636
    Abstract: A method is disclosed for modifying a catalytic molecular sieve for shape-selective hydrocarbon conversions comprises: a) selectivating said catalytic molecular sieve by contacting with a silicon-containing selectivating agent; and b) calcining the selectivated catalytic molecular sieve at high temperature calcination conditions comprising temperatures greater than 700° C., which conditions are sufficient to reduce acid activity as measured by alpha value and increase diffusion barrier of said catalytic molecular sieve as measured by the rate of 2,3-dimethylbutane uptake, as compared to the selectivated catalyst. Catalytic molecular sieves thus prepared, such as silica-bound ZSM-5, and their use in hydrocarbon conversion processes such as aromatics isomerization, e.g., xylene isomerization, ethylbenzene conversion and aromatics disproportionation, e.g., toluene disproportionation are also disclosed.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: July 3, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jeffrey S. Beck, William G. Borghard, Arthur W. Chester, Carrie L. Kennedy, David L. Stern
  • Patent number: 6974787
    Abstract: The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve as well as a cerium component which enhances the stability and sulfur reduction activity of the catalyst. The molecular sieve is normally a faujasite such as USY. The primary sulfur reduction component is normally a metal of Period 3 of the Periodic Table, preferably vanadium. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: December 13, 2005
    Assignees: ExxonMobil Corporation, W. R. Grace & Co.-Conn.
    Inventors: Arthur W. Chester, Terry G. Roberie, Hye Kyung C. Timken, Michael S. Ziebarth
  • Patent number: 6923903
    Abstract: The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve as well as a cerium component which enhances the stability and sulfur reduction activity of the catalyst. The molecular sieve is normally a faujasite such as USY. The primary sulfur reduction component is normally a metal of Period 3 of the Periodic Table, preferably vanadium. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: August 2, 2005
    Assignees: ExxonMobil Oil Corporation, W.R. Grace & Co.-Conn.
    Inventors: Arthur W. Chester, Hye Kyung Cho Timken, Terry G. Roberie, Michael S. Ziebarth
  • Patent number: 6852214
    Abstract: The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction additive comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve. The molecular sieve is normally a large pore size zeolite such as USY or zeolite beta or an intermediate pore size zeolite such as ZSM-5. The metal is normally a metal of Period 4 of the Periodic Table, preferably zinc or vanadium. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: February 8, 2005
    Assignees: Mobil Oil Corporation, W. R. Grace & Co.-Conn.
    Inventors: Arthur W. Chester, Hye Kyung Cho Timken, Michael S. Ziebarth, Terry G. Roberie
  • Publication number: 20040265204
    Abstract: EMM-3 (ExxonMobil Material number 3) is a new crystalline microporous material with a framework of tetrahedral atoms connected by atoms capable of bridging the tetrahedral atoms, the tetrahedral atom framework being defined by the interconnections between the tetrahedrally coordinated atoms in its framework. EMM-3 can be prepared in aluminophosphate (AlPO) and metalloaluminophosphate (MeAPO) compositions with the hexamethonium template. It has a unique X-ray diffraction pattern, which identifies it as a new material. EMM-3 is stable to calcination in air, absorbs hydrocarbons, and is catalytically active for hydrocarbon conversion.
    Type: Application
    Filed: June 8, 2004
    Publication date: December 30, 2004
    Inventors: Karl G. Strohmaier, Arthur W. Chester, William R. Harrison, James C. Vartuli
  • Patent number: 6787124
    Abstract: A new synthetic porous crystalline material, designated EMM-1, is disclosed having, in its calcined form, the X-ray diffraction pattern of Table 2 above. Also disclosed are methods of making EMM-1 in the presence of HF using various organic nitrogen compounds as directing agents. Aluminum-containing EMM-1 can be produced either by inclusion of Al in the synthesis, or by incorporation of B or Ga in the synthesis, followed by post treatment with aluminum nitrate or other sources of Al. EMM-1 is useful as an acid catalyst and as an adsorbent.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: September 7, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Arthur W. Chester, Sandeep S. Dhingra, Stephen G. Casmer
  • Patent number: 6747182
    Abstract: A process for preparing alkyl substituted aromatic compounds by alkylating an aromatic compound with an alkylating agent in the presence of a porous crystalline zeolite in which the zeolite has been selectively deluminated to remove nonframework aluminum.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: June 8, 2004
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Hye Kyung C. Timken, Arthur W. Chester, Susan Ardito, Mark P. Hagemeister
  • Patent number: 6635169
    Abstract: The sulfur content of liquid cracking products, especially the cracked gasoline, of a catalytic cracking process is reduced by the use of a catalyst having a product sulfur reduction component containing a metal component in an oxidation state greater than zero, wherein the average oxidation state of the metal component is increased by an oxidation step following conventional catalyst regeneration. The catalyst is normally a molecular sieve such as a zeolite Y, REY, USY, REUSY, Beta or ZSM-5. The metal component is normally a metal of Groups 5, 7, 8, 9, 12 or 13 of the periodic table, preferably vanadium or zinc. The sulfur reduction component may be a separate particle additive or part of an integrated cracking/sulfur reduction catalyst. A system for increasing the oxidation state of the metal component of a Gasoline Sulfur Reduction additive is also provided.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: October 21, 2003
    Assignees: Mobil Oil Corporation, W. R. Grace & Co.-Conn
    Inventors: Nazeer A. Bhore, Arthur W. Chester, Ke Liu, Hye Kyung Cho Timken
  • Publication number: 20030185751
    Abstract: A new synthetic porous crystalline material, designated EMM-1, is disclosed having, in its calcined form, the X-ray diffraction pattern of Table 2 above. Also disclosed are methods of making EMM-1 in the presence of HF using various organic nitrogen compounds as directing agents. Aluminum-containing EMM-1 can be produced either by inclusion of Al in the synthesis, or by incorporation of B or Ga in the synthesis, followed by post treatment with aluminum nitrate or other sources of Al. EMM-1 is useful as an acid catalyst and as an adsorbent.
    Type: Application
    Filed: February 14, 2003
    Publication date: October 2, 2003
    Inventors: Arthur W. Chester, Sandeep S. Dhingra, Stephen G. Casmer
  • Patent number: 6596662
    Abstract: A catalyst composition is disclosed comprising a zeolite having a non-framework aluminum content of about less than 25 percent of the total aluminum content, a bulk silica:alumina ratio of about 6.5 to about 10.0 and a unit cell size ranging from about 2.440 to about 2.464 nm.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: July 22, 2003
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Hye Kyung C. Timken, Arthur W. Chester, Susan C. Ardito, Mark P. Hagemeister
  • Publication number: 20030089639
    Abstract: The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve as well as a cerium component which enhances the stability and sulfur reduction activity of the catalyst. The molecular sieve is normally a faujasite such as USY. The primary sulfur reduction component is normally a metal of Period 3 of the Periodic Table, preferably vanadium. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
    Type: Application
    Filed: December 3, 2002
    Publication date: May 15, 2003
    Inventors: Arthur W. Chester, Hye Kyung Cho Timken, Terry G. Roberie, Michael S. Ziebarth
  • Publication number: 20030075481
    Abstract: The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve as well as a cerium component which enhances the stability and sulfur reduction activity of the catalyst. The molecular sieve is normally a faujasite such as USY. The primary sulfur reduction component is normally a metal of Period 3 of the Periodic Table, preferably vanadium. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
    Type: Application
    Filed: December 3, 2002
    Publication date: April 24, 2003
    Inventors: Arthur W. Chester, Hye Kyung Cho Timken, Terry G. Roberie, Michael S. Ziebarth