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).
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Patent number: 7902103Abstract: 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: GrantFiled: June 30, 2009Date of Patent: March 8, 2011Assignee: ExxonMobil Research and Engineering CompanyInventors: Jean W. Beeckman, Glenn R. Sweeten, Arthur W. Chester, John P. McWilliams, Dominick N. Mazzone
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Patent number: 7803267Abstract: 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: GrantFiled: April 29, 2005Date of Patent: September 28, 2010Assignee: W. R. Grace & Co.-Conn.Inventors: Arthur W. Chester, Terry G. Roberie, Hye Kyung C. Timken, Michael S. Ziebarth
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Publication number: 20090270246Abstract: 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: ApplicationFiled: June 30, 2009Publication date: October 29, 2009Inventors: Jean W. Beeckman, Glenn R. Sweeten, Arthur W. Chester, John P. McWilliams, Dominick N. Mazzone
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Patent number: 7572749Abstract: 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: GrantFiled: July 26, 2005Date of Patent: August 11, 2009Assignee: ExxonMobil Research and Engineering CompanyInventors: Jean W. Beeckman, Glenn R. Sweeten, Arthur W. Chester, John P. McWilliams, Dominick N. Mazzone
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Patent number: 7507686Abstract: 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: GrantFiled: April 29, 2005Date of Patent: March 24, 2009Assignee: W. R. Grace & Co. - Conn.Inventors: Arthur W. Chester, Hye Kyung Cho Timken, Terry G. Roberie, Michael S. Ziebarth
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Patent number: 7476638Abstract: 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: GrantFiled: December 16, 2004Date of Patent: January 13, 2009Assignee: W. R. Grace & Co. - Conn.Inventors: Arthur W. Chester, Hye Kyung Cho Timken, Terry G. Roberie, Michael S. Ziebarth
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Patent number: 7326818Abstract: 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: GrantFiled: August 15, 2003Date of Patent: February 5, 2008Assignee: 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
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Patent number: 7255849Abstract: 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: GrantFiled: June 8, 2004Date of Patent: August 14, 2007Assignee: ExxonMobil Research and Engineering CompanyInventors: Karl G. Strohmaier, Arthur W. Chester, William R. Harrison, James C. Vartuli
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Patent number: 7238636Abstract: 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: GrantFiled: July 23, 2003Date of Patent: July 3, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Jeffrey S. Beck, William G. Borghard, Arthur W. Chester, Carrie L. Kennedy, David L. Stern
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Patent number: 6974787Abstract: 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: GrantFiled: December 21, 1999Date of Patent: December 13, 2005Assignees: ExxonMobil Corporation, W. R. Grace & Co.-Conn.Inventors: Arthur W. Chester, Terry G. Roberie, Hye Kyung C. Timken, Michael S. Ziebarth
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Patent number: 6923903Abstract: 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: GrantFiled: December 3, 2002Date of Patent: August 2, 2005Assignees: ExxonMobil Oil Corporation, W.R. Grace & Co.-Conn.Inventors: Arthur W. Chester, Hye Kyung Cho Timken, Terry G. Roberie, Michael S. Ziebarth
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Patent number: 6852214Abstract: 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: GrantFiled: August 31, 1998Date of Patent: February 8, 2005Assignees: Mobil Oil Corporation, W. R. Grace & Co.-Conn.Inventors: Arthur W. Chester, Hye Kyung Cho Timken, Michael S. Ziebarth, Terry G. Roberie
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Publication number: 20040265204Abstract: 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: ApplicationFiled: June 8, 2004Publication date: December 30, 2004Inventors: Karl G. Strohmaier, Arthur W. Chester, William R. Harrison, James C. Vartuli
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Patent number: 6787124Abstract: 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: GrantFiled: February 14, 2003Date of Patent: September 7, 2004Assignee: ExxonMobil Research and Engineering CompanyInventors: Arthur W. Chester, Sandeep S. Dhingra, Stephen G. Casmer
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Patent number: 6747182Abstract: 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: GrantFiled: March 20, 2001Date of Patent: June 8, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Hye Kyung C. Timken, Arthur W. Chester, Susan Ardito, Mark P. Hagemeister
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Patent number: 6635169Abstract: 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: GrantFiled: September 20, 1999Date of Patent: October 21, 2003Assignees: Mobil Oil Corporation, W. R. Grace & Co.-ConnInventors: Nazeer A. Bhore, Arthur W. Chester, Ke Liu, Hye Kyung Cho Timken
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Publication number: 20030185751Abstract: 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: ApplicationFiled: February 14, 2003Publication date: October 2, 2003Inventors: Arthur W. Chester, Sandeep S. Dhingra, Stephen G. Casmer
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Patent number: 6596662Abstract: 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: GrantFiled: May 11, 2001Date of Patent: July 22, 2003Assignee: ExxonMobil Chemical Patents Inc.Inventors: Hye Kyung C. Timken, Arthur W. Chester, Susan C. Ardito, Mark P. Hagemeister
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Publication number: 20030089639Abstract: 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: ApplicationFiled: December 3, 2002Publication date: May 15, 2003Inventors: Arthur W. Chester, Hye Kyung Cho Timken, Terry G. Roberie, Michael S. Ziebarth
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Publication number: 20030075481Abstract: 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: ApplicationFiled: December 3, 2002Publication date: April 24, 2003Inventors: Arthur W. Chester, Hye Kyung Cho Timken, Terry G. Roberie, Michael S. Ziebarth