Patents by Inventor Dominick N. Mazzone
Dominick N. Mazzone 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: 8298451Abstract: This invention relates to reformer distillates as gassing additives for transformer oils. The reformer distillates have a 1-ring and 2-ring aromatics content of at least 98%, and are added such that the transformer oil contains less than 10 wt % of reformer distillate. The invention also relates to a method for preparing transformer oils containing reformer distillates and having excellent gassing tendency, oxidative stability, viscosity and volatility.Type: GrantFiled: September 3, 2009Date of Patent: October 30, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: S. Darden Sinclair, Martin A. Krevalis, Dominick N. Mazzone, Jean-Luc Martin, Louis F. Burns
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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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Publication number: 20100059725Abstract: This invention relates to reformer distillates as gassing additives for transformer oils. The reformer distillates have a 1-ring and 2-ring aromatics content of at least 98%, and are added such that the transformer oil contains less than 10 wt % of reformer distillate. The invention also relates to a method for preparing transformer oils containing reformer distillates and having excellent gassing tendency, oxidative stability, viscosity and volatility.Type: ApplicationFiled: September 3, 2009Publication date: March 11, 2010Inventors: S. Darden Sinclair, Martin A. Krevalis, Dominick N. Mazzone, Jean-Luc Martin, Louis F. Burns
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Patent number: 7625478Abstract: Blends of ZSM-48 catalysts are used for hydroprocessing of hydrocarbon feedstocks. The blend of ZSM-48 catalysts includes at least a portion of ZSM-48 crystals having a SiO2:Al2O3 ratio of 110 or less that are free of non-ZSM-48 seed crystals and have a desirable morphology.Type: GrantFiled: December 12, 2006Date of Patent: December 1, 2009Assignee: ExxonMobil Research and Engineering CompanyInventors: Wenyih F. Lai, Terry E. Helton, Dominick N. Mazzone
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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: 7553790Abstract: The present invention describes a method to increase the activity of a catalyst by first performing an ion exchange step with a potassium ion, followed by performing an ion-exchange step with an ammonium ion. Specifically, the present invention describes a method to increase the acidity of a zeolite by incorporating a potassium salt ion-exchange prior to an ammonium salt ion-exchange step. Even more specifically, the present invention is drawn to a method of increasing the activity of a zeolite by employing more than one potassium ion exchanges followed by at least one ammonium ion exchange. The present invention also describes a method to reduce the amount of sodium normally found in commercially produced zeolite by employing any of these methods. The present invention is also drawn to the catalysts produced by any of these methods.Type: GrantFiled: October 25, 2005Date of Patent: June 30, 2009Assignee: ExxonMobil Research and Engineering CompanyInventors: Jean W. Beeckman, Glenn R. Sweeten, Daria N. Lissy, David L. Stern, Stephen J. McCarthy, Dominick N. Mazzone, Christine N. Elia
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Patent number: 7482300Abstract: This invention relates to a high activity ZSM-48. More particularly, a high activity ZSM-48 with defined purity is prepared, the ZSM-48 being free of non-ZSM-48 seed crystals and ZSM-50.Type: GrantFiled: December 8, 2006Date of Patent: January 27, 2009Assignee: Exxonmobil Research and Engineering CompanyInventors: Wenyih F. Lai, Terry E. Helton, Dominick N. Mazzone
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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: 7261805Abstract: A process for upgrading a hydrocarbon feedstock containing waxy components and having an end boiling point exceeding 650° F., which includes contacting the feedstock at superatmospheric hydrogen partial pressure with an isomerization dewaxing catalyst that includes ZSM-48 and contacting the feedstock with a hydrocracking catalyst to produce an upgraded product with a reduced wax content. Each catalyst is present in an amount sufficient to reduce the cloud point and the pour point of the feedstock at a conversion of greater than about 10%, and an overall distillate yield of greater than about 10% results from the process.Type: GrantFiled: May 2, 2003Date of Patent: August 28, 2007Assignee: ExxonMobil Research and Engineering CompanyInventors: Michael T. Grove, Randall D. Partridge, Terry E. Helton, David A. Pappal, Philip J. Angevine, Dominick N. Mazzone
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Patent number: 6984764Abstract: The present invention provides a process for producing a monoalkylated aromatic compound, particularly ethylbenzene or cumene, in which a polyalkylated aromatic compound is contacted with an alkylatable aromatic compound in the liquid phase and in the presence of a transalkylation catalyst comprising TEA-mordenite having an average crystal size of less than 0.5 micron.Type: GrantFiled: May 4, 1999Date of Patent: January 10, 2006Assignee: ExxonMobil Oil CorporationInventors: Wieslaw J. Roth, Brian J. Ratigan, Dominick N. Mazzone
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Publication number: 20040004020Abstract: A process for upgrading a hydrocarbon feedstock containing waxy components and having an end boiling point exceeding 650° F., which includes contacting the feedstock at superatmospheric hydrogen partial pressure with an isomerization dewaxing catalyst that includes ZSM-48 and contacting the feedstock with a hydrocracking catalyst to produce an upgraded product with a reduced wax content. Each catalyst is present in an amount sufficient to reduce the cloud point and the pour point of the feedstock at a conversion of greater than about 10%, and an overall distillate yield of greater than about 10% results from the process.Type: ApplicationFiled: May 2, 2003Publication date: January 8, 2004Inventors: Michael T. Grove, Randall D. Partridge, Terry E. Helton, David A. Pappal, Philip J. Angevine, Dominick N. Mazzone
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Patent number: 6294077Abstract: The present invention is a process for producing a high viscosity index and low pour point lubricating oil base stock which comprises catalytically converting a hydrotreated hydrocarbon lube oil feedstock containing waxy paraffins in the presence of hydrogen and in the presence of a low acidity ZSM-5 catalyst having a highly dispersed noble metal component. The ZSM-5 catalyst is subjected to controlled acidity reduction to an alpha value below 15 prior to incorporation of the noble metal component.Type: GrantFiled: February 2, 2000Date of Patent: September 25, 2001Assignee: Mobil Oil CorporationInventors: Richard C. Dougherty, Dominick N. Mazzone, Richard F. Socha, Hye Kyung Cho Timken
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Patent number: 6231749Abstract: Petroleum wax feeds are converted to high viscosity index lubricants by a two-step hydrocracking-hydroisomerization process in which the wax feed which exhibits branchingis initially subjected to hydrocracking under mild conditions with a conversion to non-lube range products of no more than about 30 weight percent of the feed. The hydrocracking is carried out at a hydrogen pressure of at least 1000 psig (7000 kPa) using an amorphous catalyst which preferentially removes the aromatic components present in the initial feed. The hydrocracked effluent is then subjected to hydroisomerization in a second step using a low acidity zeolite beta catalyst which effects a preferential isomerization on the paraffin components to less waxy, high VI isoparaffins. The second stage may be operated at high pressure by cascading the first stage product into the second stage or at a lower pressure, typically from 200 to 1000 psig.Type: GrantFiled: November 15, 1999Date of Patent: May 15, 2001Assignee: Mobil Oil CorporationInventors: Thomas F. Degnan, Robert T. Hanlon, Grant G. Karsner, Dominick N. Mazzone
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Patent number: 6190532Abstract: Petroleum waxes are converted to high viscosity index lubricants by a hydroisomerization process in which the wax feed is subjected to hydroisomerization over a low acidity molecular sieve isomerization catalyst (the molecular sieve being preferably a zeolite) which effects a preferential isomerization on the paraffin components in the feed to less waxy, high VI isoparaffins. The hydroisomerization is operated at high pressure, at least 1000 psig hydrogen partial pressure (reactor inlet) using a zeolite catalyst, preferably a noble metal containing zeolite beta catalyst which contains boron as a framework component of the zeolite to give a low alpha value, typically below 10. The hydroisomerization is carried out at with a 650° F.+ conversion in the range of 10 to 40 weight percent of the feed. A final dewaxing step to target pour point may be used with relatively low loss, typically no more than 15 weight percent, during this dewaxing.Type: GrantFiled: November 15, 1999Date of Patent: February 20, 2001Assignee: Mobil Oil CorporationInventors: Thomas F. Degnan, Dominick N. Mazzone
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Patent number: 5969143Abstract: There is provided a high efficiency base synthesis process for shape selective production of pyridine and picoline products from ammonia and C.sub.1-5 carbonyl compounds. The process includes reacting ammonia and at least one C.sub.1-5 carbonyl reactant under suitable reaction conditions of temperature, pressure, and space velocity in the presence of a catalyst comprising a molecular sieve to produce a primary product comprising pyridine or picoline products and polyalkylpyridines or other higher molecular weight aromatic species, separating and collecting the pyridine or picoline products from the polyalkylpyridines or other higher molecular weight aromatic species, and circulating the polyalkylpyridines or other higher molecular weight aromatic species to the same or another catalyst under conversion conditions to yield additional pyridine or picoline products with substantially reduced amounts of polyalkylpyridines or other higher molecular weight aromatic species.Type: GrantFiled: December 31, 1997Date of Patent: October 19, 1999Assignee: Mobil Oil CorporationInventors: Arthur Chester, Scott Han, Dominick N. Mazzone, Chaya R. Venkat
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Patent number: 5902917Abstract: There is provided a process for producing alkylaromatics, especially ethylbenzene and cumene, wherein a feedstock is first fed to a transalkylation zone and the entire effluent from the transalkylation zone is then cascaded directly into an alkylation zone along with an olefin alkylating agent, especially ethylene or propylene.Type: GrantFiled: November 26, 1997Date of Patent: May 11, 1999Assignee: Mobil Oil CorporationInventors: Nick A. Collins, Dominick N. Mazzone, Chaya R. Venkat
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Patent number: 5900520Abstract: Alkyl aromatic compounds are prepared by alkylating an alkylatable aromatic compound with a paraffin alkylating agent under alkylation reaction conditions in the presence of catalyst comprising synthetic porous crystalline material characterized by an X-ray diffraction pattern including interplanar d-spacings at 12.36.+-.0.4, 11.03.+-.0.2, 8.83.+-.0.14, 6.18.+-.0.12, 6.00.+-.0.10, 4.06.+-.0.07, 3.91.+-.0.07, and 3.42.+-.0.06 Angstroms.Type: GrantFiled: January 23, 1995Date of Patent: May 4, 1999Assignee: Mobil Oil CorporationInventors: Dominick N. Mazzone, David O. Marler, Kathleen M. Keville, Larry A. Green
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Patent number: 5865986Abstract: This is a process for upgrading a petroleum naphtha fraction. The naphtha is subjected to reforming and the reformate is cascaded to a benzene and toluene synthesis zone over a benzene and toluene synthesis catalyst comprising a molecular sieve of low acid activity. The preferred molecular sieve is steamed ZSM-5. The benzene and toluene synthesis zone is operated under conditions compatible with the conditions of the reformer such as pressures of above about 50 psig (446 kPa) and temperatures above about 800.degree. F. (427.degree. C). In one aspect of the invention, the benzene and toluene synthesis catalyst includes a metal hydrogenation component such as cobalt, nickel, platinum or palladium. In one mode of operation, the benzene and toluene synthesis catalyst replaces at least a portion of the catalyst of the reformer. The process produces a product containing an increased proportion of benzene and toluene, and a reduced proportion of C8 aromatics, particularly ethylbenzenes, as compared to the reformate.Type: GrantFiled: November 3, 1995Date of Patent: February 2, 1999Assignee: Mobil Oil CorporationInventors: John Scott Buchanan, Jane C. Cheng, David G. Freyman, Werner Otto Haag, Mohsen N. Harandi, Dominick N. Mazzone, Roger A. Morrison, Norman J. Rouleau, Charles M. Sorensen, Hye Kyung C. Timken, Robert Adams Ware
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Patent number: 5643440Abstract: Petroleum wax feeds having a low oil content are converted to high viscosity index lubricants by a two-step hydrocracking-hydroisomerization process in which the wax feed is initially subjected to hydrocracking under mild conditions with a conversion to lube range products of between generally 30 and 40 weight percent of the feed. The hydrocracking is carried out at a hydrogen pressure of at least 800 psig using an amorphous catalyst which preferentially removes the aromatic components present in the initial feed. The hydrocracked effluent is then subjected to hydroisomerization in a second step using a low acidity zeolite beta catalyst. The second stage may be operated at high pressure by cascading the first stage product into the second stage or at a lower pressure, typically from 200 to 1000 psig. The second stage catalyst is preferably a noble metal containing zeolite beta catalyst. The second stage is carried out at relatively low temperature, typically from 600.degree. to 650.degree. F.Type: GrantFiled: December 7, 1994Date of Patent: July 1, 1997Assignee: Mobil Oil CorporationInventors: William S. Borghard, Thomas F. Degnan, Dominick N. Mazzone