Patents Represented by Attorney Beverly J. Artale
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Patent number: 7976697Abstract: A NOx reduction composition and process of using the composition to reduce the content of NOx emissions and gas phase reduced nitrogen species released from the regeneration zone during fluid catalytic cracking of a hydrocarbon feedstock into lower molecular weight components is disclosed. The process comprises contacting a hydrocarbon feedstock during a fluid catalytic cracking (FCC) process wherein a regeneration zone of an fluid catalytic cracking unit (FCCU) is operated in a partial or incomplete combustion mode under FCC conditions, with a circulating inventory of an FCC cracking catalyst and a particulate NOx reduction composition. The NOx reduction composition has a mean particle size of greater than 45 ?m and comprises (1) a zeolite component having (i) a pore size of form 2-7 A Angstroms and (ii) a SiO2 to Al2O3 molar ratio of less than 500, and (2) at least one noble metal selected from the group consisting of platinum, palladium, rhodium, iridium, osmium, ruthenium, rhenium and mixtures thereof.Type: GrantFiled: March 24, 2006Date of Patent: July 12, 2011Assignee: W. R. Grace & Co.-Conn.Inventors: M. Sundaram Krishnamoorthy, Michael Scott Ziebarth, George Yaluris, Roger Jean Lussier, John Allen Rudesill
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Patent number: 7223417Abstract: Nutrient formulations are provided having a high content of carrageenan and a low liquid content. The nutrient formulation also contains at least one nutritional and/or pharmaceutical component such as flavorings, sweeteners, amino acids, fruit solids, protein and carbohydrates. The formulations are produced by mixing at least one carrageenan at a minimum of 5% by weight, and the desired nutritional and/or pharmaceutical component with no more than 50% by weight of a liquid.Type: GrantFiled: April 23, 2003Date of Patent: May 29, 2007Inventors: Gary J. Calton, Louis L. Wood
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Patent number: 7153413Abstract: The sulfur content of liquid cracking products, especially the cracked gasoline, is reduced in a catalytic cracking process employing a cracking catalyst containing a high content of vanadium. The cracking process involves introducing at least one vanadium compound into a hydrocarbon-sulfur containing feedstock to be charged to a fluid catalytic cracking reactor operating under steady state conditions and containing an equilibrium fluid cracking catalyst inventory within the reactor. The amount of sulfur in the liquid products, in particular gasoline and LCO fractions, is reduced as a result of the increased vanadium content on the equilibrium catalyst. Advantageously, sulfur reduction is achieved even in the presence of other metal contaminants, such as nickel and iron, on the equilibrium catalyst.Type: GrantFiled: July 10, 2001Date of Patent: December 26, 2006Assignee: W.R. Grace &Co.-Conn.Inventors: Terry G. Roberie, Ranjit Kumar, Michael S Ziebarth, Wu-Cheng Cheng, Xinjin Zhao, Nazeer Bhore
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Patent number: 7048846Abstract: A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membrane having sufficient flux and selectivity to separate a sulfur deficient retentate fraction from a sulfur enriched permeate fraction, preferably, under pervaporation conditions. Sulfur deficient retentate fractions are useful directly into the gasoline pool. Sulfur-enriched permeate fractions are rich in sulfur containing aromatic and nonaromatic hydrocarbons and are further treated with conventional sulfur removal technologies, e.g. hydrotreating, to reduce sulfur content. The process of the invention provides high quality naphtha products having a reduced sulfur content and a high content of olefin compounds.Type: GrantFiled: March 6, 2003Date of Patent: May 23, 2006Assignee: W.R. Grace & Co.-Conn.Inventors: Lloyd Steven White, Richard Franklin Wormsbecher, Markus Lesemann
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Patent number: 7041212Abstract: A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membrane having sufficient flux and selectivity to separate a sulfur deficient retentate fraction from a sulfur enriched permeate fraction, preferably, under pervaporation conditions. Sulfur deficient retentate fractions are useful directly into the gasoline pool. Sulfur-enriched permeate fractions are rich in sulfur containing aromatic and nonaromatic hydrocarbons and are further treated with conventional sulfur removal technologies, e.g. hydrotreating, to reduce sulfur content. The process of the invention provides high quality naphtha products having a reduced sulfur content and a high content of olefin compounds.Type: GrantFiled: May 14, 2004Date of Patent: May 9, 2006Assignee: W.R. Grace & Co. - Conn.Inventors: Lloyd Steven White, Richard Franklin Wormsbecher, Markus Lesemann
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Patent number: 7030055Abstract: Compositions for reduction of gas phase reduced nitrogen species and NOx generated during a partial or incomplete combustion catalytic cracking process, preferably, a fluid catalytic cracking process, are disclosed. The compositions comprise (i) an acidic metal oxide containing substantially no zeolite, (ii) an alkali metal, alkaline earth metal, and mixtures thereof, (iii) an oxygen storage component, and (iv) a noble metal component, preferably rhodium or iridium, and mixtures thereof, are disclosed. Preferably, the compositions are used as separate additives particles circulated along with the circulating FCC catalyst inventory. Reduced emissions of gas phase reduced nitrogen species and NOx in an effluent off gas of a partial or incomplete combustion FCC regenerator provide for an overall NOx reduction as the effluent gas stream is passed from the FCC regenerator to a CO boiler, whereby as CO is oxidized to CO2 a lesser amount of the reduced nitrogen species is oxidized to NOx.Type: GrantFiled: May 3, 2004Date of Patent: April 18, 2006Assignee: W.R. Grace & Co.-Conn.Inventors: George Yaluris, John Allen Rudesill
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Patent number: 7018527Abstract: A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membrane having sufficient flux and selectivity to separate a sulfur deficient retentate fraction from a sulfur enriched permeate fraction, preferably, under pervaporation conditions. Sulfur deficient retentate fractions are useful directly into the gasoline pool. Sulfur-enriched permeate fractions are rich in sulfur containing aromatic and nonaromatic hydrocarbons and are further treated with conventional sulfur removal technologies, e.g. hydrotreating, to reduce sulfur content. The process of the invention provides high quality naphtha products having a reduced sulfur content and a high content of olefin compounds.Type: GrantFiled: May 14, 2004Date of Patent: March 28, 2006Assignee: W.R. Grace & Co.-Conn.Inventors: Lloyd Steven White, Richard Franklin Wormsbecher, Markus Lesemann
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Patent number: 6902665Abstract: Compositions comprising a component containing (i) an acidic oxide support, (ii) an alkali metal and/or alkaline earth metal or mixtures thereof, (iii) a transition metal oxide having oxygen storage capability, and (iv) palladium promote CO combustion in FCC processes while minimizing the formation of NOx. The acidic oxide support preferably contains silica alumina. Ceria is the preferred oxygen storage oxide.Type: GrantFiled: December 18, 2001Date of Patent: June 7, 2005Assignee: W. R. Grace & Co.-Conn.Inventors: Alan W. Peters, Edward F. Rakiewicz, Gordon Dean Weatherbee, Xinjin Zhao
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Patent number: 6896796Abstract: A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membrane having sufficient flux and selectivity to separate a sulfur deficient retentate fraction from a sulfur enriched permeate fraction, preferably, under pervaporation conditions. Sulfur deficient retentate fractions are useful directly into the gasoline pool. Sulfur-enriched permeate fractions are rich in sulfur containing aromatic and nonaromatic hydrocarbons and are further treated with conventional sulfur removal technologies, e.g. hydrotreating, to reduce sulfur content. The process of the invention provides high quality naphtha products having a reduced sulfur content and a high content of olefin compounds.Type: GrantFiled: February 16, 2001Date of Patent: May 24, 2005Assignee: W. R. Grace & Co.-Conn.Inventors: Lloyd Steven White, Richard Franklin Wormsbecher, Markus Lesemann
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Patent number: 6881390Abstract: Compositions for reduction of gas phase reduced nitrogen species and NOx generated during a partial or incomplete combustion catalytic cracking process, preferably, a fluid catalytic cracking process, are disclosed. The compositions comprise (i) an acidic metal oxide containing substantially no zeolite, (ii) an alkali metal, alkaline earth metal, and mixtures thereof, (iii) an oxygen storage component, and (iv) a noble metal component, preferably rhodium or iridium, and mixtures thereof, are disclosed. Preferably, the compositions are used as separate additives particles circulated along with the circulating FCC catalyst inventory. Reduced emissions of gas phase reduced nitrogen species and NOx in an effluent off gas of a partial or incomplete combustion FCC regenerator provide for an overall NOx reduction as the effluent gas stream is passed from the FCC regenerator to a CO boiler, whereby as CO is oxidized to CO2 a lesser amount of the reduced nitrogen species is oxidized to NOx.Type: GrantFiled: August 18, 2003Date of Patent: April 19, 2005Assignee: W. R. Grace & Co.-Conn.Inventors: George Yaluris, John Allen Rudesill
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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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Patent number: 6846403Abstract: 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 rare earth component which enhances the cracking activity of the cracking catalyst. The molecular sieve is normally a faujasite such as USY. The primary sulfur reduction component is normally a metal of Period 4 of the Periodic Table, preferably vanadium. The rare earth component preferably includes cerium which enhances the sulfur reduction activity of the catalyst. 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 28, 1998Date of Patent: January 25, 2005Assignees: Mobil Oil Corporation, W.R. Grace & Co.-Conn.Inventors: Wu-Cheng Cheng, Scott Kevin Purnell, Terry G. Roberie, Hye Kyung Cho Timken, Xinjin Zhao
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Patent number: 6660683Abstract: Compositions for reduction of gas phase reduced nitrogen species and NOx generated during a partial or incomplete combustion catalytic cracking process, preferably, a fluid catalytic cracking process, are disclosed. The compositions comprise (i) an acidic metal oxide containing substantially no zeolite, (ii) an alkali metal, alkaline earth metal, and mixtures thereof, (iii) an oxygen storage component, and (iv) a noble metal component, preferably rhodium or iridium, and mixtures thereof, are disclosed. Preferably, the compositions are used as separate additives particles circulated along with the circulating FCC catalyst inventory. Reduced emissions of gas phase reduced nitrogen species and NOx in an effluent off gas of a partial or incomplete combustion FCC regenerator provide for an overall NOx reduction as the effluent gas stream is passed from the FCC regenerator to a CO boiler, whereby as CO is oxidized to CO2 a lesser amount of the reduced nitrogen species is oxidized to NOx.Type: GrantFiled: October 21, 2002Date of Patent: December 9, 2003Assignee: W.R. Grace & Co.-Conn.Inventors: George Yaluris, John Allen Rudesill
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Patent number: 6554993Abstract: A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membrane having sufficient flux and selectivity to separate a sulfur deficient retentate fraction from a sulfur enriched permeate fraction, preferably, under pervaporation conditions. Sulfur deficient retentate fractions are useful directly into the gasoline pool. Sulfur-enriched permeate fractions are rich in sulfur containing aromatic and nonaromatic hydrocarbons and are further treated with conventional sulfur removal technologies, e.g. hydrotreating, to reduce sulfur content. The process of the invention provides high quality naphtha products having a reduced sulfur content and a high content of olefin compounds.Type: GrantFiled: February 16, 2001Date of Patent: April 29, 2003Assignee: W.R. Grace & Co.-Conn.Inventors: Lloyd Steven White, Richard Franklin Wormsbecher, Markus Lesemann
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Patent number: 6528451Abstract: Mixed oxides of cerium oxide and zirconium oxides having a high oxygen storage and high oxygen release rate are disclosed. The mixed oxides are made of polycrystalline particles of cerium oxide and zirconium oxide having a controlled domain structure on the subcrystalline level wherein adjacent domains within a single crystallite have a different ratio of zirconium and cerium. The mixed oxides are prepared by a co-precipitation technique using mixed salt solutions of cerium and zirconium having a solid content of at least 23%, based on an oxide basis.Type: GrantFiled: March 13, 2001Date of Patent: March 4, 2003Assignee: W.R. Grace & Co.-Conn.Inventors: Rasto Brezny, Manoj M Koranne, Takeshi Egami, Eugene Mamontov
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Patent number: 6482315Abstract: 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 non-molecular sieve support containing a high content of vanadium. Preferably, the support is alumina. The sulfur reduction catalyst is used in the form of a separate particle additive in combination with the active catalytic cracking catalyst (normally a faujasite such as zeolite Y) to process hydrocarbon feedstocks in the fluid catalytic cracking (FCC) unit to produce low-sulfur gasoline and other liquid products.Type: GrantFiled: August 28, 2000Date of Patent: November 19, 2002Assignee: W.R. Grace & Co.-Conn.Inventors: Terry G. Roberie, Ranjit Kumar, Michael Scott Ziebarth, Wu-Cheng Cheng, Xinjin Zhao, Nazeer Bhore
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Patent number: 6432863Abstract: The present invention is directed to a supported catalytic activator composition resulting from the contact of a catalyst support (formed by reaction of a carrier, such as an inorganic oxide (e.g., silica) and an organo halide such as bromo pentafluorobenzene in the presence of base) and a catalytic activator such as dimethylanilinium tetrakis (pentafluorophenyl) borate, and methods for making the same.Type: GrantFiled: December 10, 1998Date of Patent: August 13, 2002Assignee: W. R. Grace & Co.-Conn.Inventor: David George Ward
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Patent number: 6403518Abstract: The present invention is directed to a supported catalyst composition resulting from contact of at least one transition metal catalyst precursor, such as a metallocene catalyst, and a support activator composition resulting from contact of a catalyst support (formed by reaction of a carrier, for example, an inorganic oxide (e.g., silica) and an organo halide such as bromo pentaflurobenzene in the presence of base) and a catalytic activator such as dimethylanilinium tetrakis (pentafluorophenyl) borate, and methods for making the same.Type: GrantFiled: December 10, 1998Date of Patent: June 11, 2002Assignee: W. R. Grace & Co.-Conn.Inventor: David George Ward
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Patent number: 6379536Abstract: Compositions comprising a component containing (i) an acidic oxide support, (ii) an alkali metal and/or alkaline earth metal or mixtures thereof, (iii) a transition metal oxide having oxygen storage capability, and (iv) a transition metal selected from Groups Ib and/or IIb of the Periodic Table provide NOx control performance in FCC processes. The acidic oxide support preferably contains silica alumina. Ceria is the preferred oxygen storage oxide. Cu and Ag are preferred Group I/IIb transition metals. The compositions are especially useful in the cracking of hydrocarbon feedstocks having above average nitrogen content.Type: GrantFiled: August 17, 2000Date of Patent: April 30, 2002Assignee: W. R. Grace & Co.-Conn.Inventors: Alan W. Peters, John A. Rudesill, Gordon Dean Weatherbee, Edward F. Rakiewicz, Mary Jane A. Barbato-Grauso
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Patent number: 6358881Abstract: Compositions comprising a component containing (i) an acidic oxide support, (ii) an alkali metal and/or alkaline earth metal or mixtures thereof, (iii) a transition metal oxide having oxygen storage capability, and (iv) palladium promote CO combustion in FCC processes while minimizing the formation of NOx. The acidic oxide support preferably contains silica alumina. Ceria is the preferred oxygen storage oxide.Type: GrantFiled: September 14, 2000Date of Patent: March 19, 2002Assignee: W. R. Grace & Co.-Conn.Inventors: Alan W. Peters, Edward F. Rakiewicz, Gordon Dean Weatherbee, Xinjin Zhao