Patents by Inventor William E. Winter, Jr.
William E. Winter, Jr. 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: 6913688Abstract: A process for the selective hydrodesulfurization of olefinic naphtha streams containing a substantial amount of organically bound sulfur and olefins. The olefinic naphtha stream is selectively hydrodesulfurized in a first sulfur removal stage and resulting product stream, which contains hydrogen sulfide and organosulfur is fractionated at a temperature to produce a light fraction containing less than about 100 wppm organically bound sulfur and a heavy fraction containing greater than about 100 wppm organically bound sulfur. The light fraction is stripped of at least a portion ofits hydrogen sulfide and can be collected or passed to gasoline blending. The heavy fraction is passed to a second sulfur removal stage wherein at least a portion of any remaining organically bound sulfur is removed.Type: GrantFiled: October 18, 2002Date of Patent: July 5, 2005Assignee: ExxonMobil Research and Engineering CompanyInventors: John C. Coker, Garland B. Brignac, Thomas R. Halbert, John G. Matragrano, Brij Gupta, Robert C. Welch, William E. Winter, Jr.
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Patent number: 6231753Abstract: Selective and deep desulfurization of a high sulfur content mogas naphtha, with reduced product mercaptans and olefin loss, is achieved by a two stage, vapor phase hydrodesulfurization process with interstage separation of at least 80 vol. % of the H2S formed in the first stage from the first stage, partially desulfurized naphtha vapor effluent fed into the second stage. At least 70 wt. % of the sulfur is removed in the first stage and at least 80 wt. % of the remaining sulfur is removed in the second stage, to achieve a total at least 95 wt. % feed desulfurization, with no more than a 60 vol. % feed olefin loss. The second stage temperature and space velocity are preferably greater than in the first. The hydrodesulfurization catalyst preferably contains a low metal loading of Co and Mo metal catalytic components on an alumina support.Type: GrantFiled: November 24, 1999Date of Patent: May 15, 2001Assignee: Exxon Research and Engineering CompanyInventors: Craig A. McKnight, Thomas R. Halbert, John P. Greeley, Garland B. Brignac, Richard A. Demmin, William E. Winter, Jr., Bruce R. Cook
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Patent number: 5336395Abstract: This invention is directed to a staged process for producing liquids from coal or similar carbonaceous feeds combining a pretreatment stage and a liquefaction stage. In the process, the feed is reacted with carbon monoxide and water at an elevated temperature and pressure. The so pretreated coal is sent to a liquefaction reactor, wherein the coal is reacted at a somewhat higher temperature in the presence of hydrogen and catalyst to produce valuable liquid fuels or feedstocks.Type: GrantFiled: March 29, 1993Date of Patent: August 9, 1994Assignee: Exxon Research and Engineering CompanyInventors: Joanne K. Pabst, William E. Winter, Jr., Stephen N. Vaughn, Claude C. Culross, Steve D. Reynolds
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Patent number: 5300212Abstract: Disclosed is a process wherein a two-stage hydroconversion process for converting a heavy hydrocarbonaceous feedstock to lower boiling products which process comprises: (a) reacting the feedstock in a first reaction stage at hydroconversion conditions which include temperature from about 650.degree. F. to 900.degree. F.Type: GrantFiled: October 22, 1992Date of Patent: April 5, 1994Assignee: Exxon Research & Engineering Co.Inventor: William E. Winter, Jr.
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Patent number: 5152885Abstract: A process for removing heteroatoms from a hydrocarbonaceous feedstock using a catalyst composition comprised of: about 0.005 to 5.0 wt. % noble metal, about 0.5 to 5 wt. % of at least one Group VIII metal, and about 3 to 18 wt. % of a Group VI metal, and a refractory support, wherein the noble metal is incorporated into the refractory support by use of a precursor represented by ML.sub.2 when the noble metal is Pt or Pd, and ML.sub.3, when the noble metal is Rh or Ir, where M is the noble metal and L is a ligand selected from the dithiocarbamates, dithiophosphates, dithiophosphinates, xanthates, thioxanthates, and further wherein L has organo groups having a sufficient number of carbon atoms to render the noble metal complex soluble in oil.Type: GrantFiled: December 18, 1990Date of Patent: October 6, 1992Assignee: Exxon Research and Engineering CompanyInventors: Gophal H. Singhal, William E. Winter, Jr., Kenneth L. Riley, Kenneth L. Trachte
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Patent number: 5070053Abstract: Disclosed is a FCC catalyst composite, and a method of making said composite comprised of an alumina-on-silica additive, an inorganic refractory oxide, and optionally a zeolite material.Type: GrantFiled: December 21, 1990Date of Patent: December 3, 1991Assignee: Exxon Research and Engineering CompanyInventors: Claude C. Culross, Gordon F. Stuntz, William E. Winter, Jr.
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Patent number: 5037532Abstract: A slurry hydrotreating process is described in which a hydrotreating catalyst of small particle size is contacted with a heavy fossil fuel. High catalyst activity is maintained by circulating the catalyst between a hydrotreating zone and a reactivating zone where the catalyst is hydrogen stripped.Type: GrantFiled: September 21, 1990Date of Patent: August 6, 1991Assignee: Exxon Research & Engineering CompanyInventors: William E. Winter, Jr., Willard H. Sawyer
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Patent number: 4952306Abstract: A novel slurry hydrotreating process is described which employs a hydrotreating catalyst of small particle size having a quantity of catalyst sites in excess of those required for reaction and/or adsorption of nitrogen compounds in the petroleum or synfuel feed being treated. The excess catalyst sites can therefore in effect be contacted with a low nitrogen or essentially zero nitrogen feed, allowing rapid hydrogenation of aromatics at low temperatures where equilibrium is favored. In a further aspect of the invention, the catalyst which contains adsorbed nitrogen is activated by high temperature denitrogenation.Type: GrantFiled: September 22, 1989Date of Patent: August 28, 1990Assignee: Exxon Research and Engineering CompanyInventors: Willard H. Sawyer, Roby Bearden, Jr., Russell R. Chianelli, William E. Winter, Jr.
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Patent number: 4513090Abstract: A catalyst is provided which comprises a crystalline silica zeolite, a hydrogenation component and a support. The catalyst may be a physical mixture of the zeolite and the supported hydrogenation component or a composite catalyst. Hydrocarbon hydroprocessing processes such as hydroconversion and hydrodesulfurization utilizing the catalyst are also provided. The catalyst is particularly suited for the simultaneous pour point reduction and hydrodesulfurization of hydrocarbonaceous oils.Type: GrantFiled: July 9, 1981Date of Patent: April 23, 1985Assignee: Exxon Research and Engineering Co.Inventors: Paul E. Eberly, Jr., William E. Winter, Jr.
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Patent number: 4464252Abstract: A process wherein a regenerated, spent sulfided vanadium-containing Group VIII metal, Group VI-B metal, or Group VI-B/Group VIII metals containing catalyst is contacted with a stream of an oxygen-containing gas and the coke burned therefrom to regenerate the catalyst. The regenerated catalyst as such, or after reduction of the catalytic metals by contact with hydrogen, can be used as an adsorbent to remove essentially all of the sulfur from a naphtha feed which contains as much as 50 weight ppm sulfur, and greater.Type: GrantFiled: August 23, 1982Date of Patent: August 7, 1984Assignee: Exxon Research & Engineering Co.Inventors: Paul E. Eberly, Jr., William E. Winter, Jr.
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Patent number: 4443329Abstract: A catalyst is provided which comprises a crystalline silica zeolite, a hydrogenation component and a support. The catalyst may be a physical mixture of the zeolite and the supported hydrogenation component or a composite catalyst. Hydrocarbon hydroprocessing processes such as hydroconversion and hydrodesulfurization utilizing the catalyst are also provided. The catalyst is particularly suited for the simultaneous pour point reduction and hydrodesulfurization of hydrocarbonaceous oils.Type: GrantFiled: November 12, 1982Date of Patent: April 17, 1984Assignee: Exxon Research and Engineering Co.Inventors: Paul E. Eberly, Jr., William E. Winter, Jr.
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Patent number: 4062762Abstract: A sulfur-containing naphtha is separated into at least three fractions. Each fraction is desulfurized separately by a different desulfurization method. Subsequently, the desulfurized fractions are recombined. The intermediate boiling point naphtha fraction is desulfurized by an alkali metal desulfurization process, preferably in the presence of added hydrogen.Type: GrantFiled: September 14, 1976Date of Patent: December 13, 1977Inventors: Kent A. Howard, William E. Winter, Jr., Karsten H. Moritz, John D. Paynter