Patents Represented by Attorney, Agent or Law Firm Henry E. Naylor
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Patent number: 5952539Abstract: A process for producing normally gaseous olefins from two different process units sharing common downstream quench and fractionation facilities, wherein one of the process units is a short contact time mechanically fluidized vaporization unit for processing petroleum residual feedstocks and the other is a conventional steam cracking unit.Type: GrantFiled: February 21, 1997Date of Patent: September 14, 1999Assignee: Exxon Chemical Patents Inc.Inventors: Noel M. Seimandi, Tony T. Cheng, Willibald Serrand, Mitchell Jacobson, Paul K. Ladwig, John F. Pagel, Michael R. Parrish, Hans A. Weisenberger
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Patent number: 5942197Abstract: A reactor is provided for reacting a liquid with a treat gas in the presence of a catalyst, the reactor comprising a continuous wall enclosing a first reaction zone, wherein the first reaction zone includes a catalyst for causing a desired reaction between the liquid and the treat gas; a liquid inlet above the first reaction zone for allowing a portion of the liquid to enter the reactor; a gas inlet below the first reaction zone for allowing a portion of the treat gas to enter the reactor; a liquid outlet below the first reaction zone for allowing a reacted portion of the liquid to exit the reactor; a gas outlet above the first reaction zone for allowing a portion of the treat gas to exit the reactor; and a gas bypass device in the first reaction zone for allowing a portion of the treat gas to bypass a portion of the first reaction zone, the gas bypass device including a gas bypass regulating device for regulating the amount of treat gas which bypasses the first reaction zone.Type: GrantFiled: June 30, 1997Date of Patent: August 24, 1999Assignee: Exxon Research and Engineering CoInventors: Ramesh Gupta, Jeffrey W. Frederick, Edward S. Ellis, David C. Dankworth, Dimitrios M. Tsangaris
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Patent number: 5939031Abstract: A reactor is provided for reacting a liquid with a treat gas in the presence of a catalyst, the reactor comprising a continuous wall enclosing a first reaction zone, wherein the first reaction zone includes a catalyst for causing a desired reaction between the liquid and the treat gas; a liquid inlet above the first reaction zone for allowing an unreacted portion of the liquid to enter the reactor; a gas inlet below the first reaction zone for allowing an unreacted portion of the treat gas to enter the reactor; a liquid outlet below the first reaction zone for allowing a reacted portion of the liquid to exit the reactor; a gas outlet above the first reaction zone for allowing a reacted portion of the treat gas to exit the reactor; and a liquid bypass device in the first reaction zone for allowing a portion of the liquid to bypass a portion of the first reaction zone, the liquid bypass device including a liquid bypass regulating device for regulating the amount of liquid which bypasses the first reaction zone.Type: GrantFiled: June 30, 1997Date of Patent: August 17, 1999Assignee: Exxon Research and Engineering Co.Inventors: Edward S. Ellis, Jeffrey W. Frederick, Ramesh Gupta, David C. Dankworth, Dimitrios M. Tsangaris
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Patent number: 5935420Abstract: A process for the hydrodesulfurization (HDS) of multiple condensed ring heterocyclic organosulfur compounds present in petroleum and petrochemical streams over noble metal-containing catalysts under relatively mild conditions. The noble metal is selected from Pt, Pd, Ir, Rh, and polymetallics thereof. The catalyst system also contains a hydrogen sulfide sorbent material.Type: GrantFiled: August 22, 1997Date of Patent: August 10, 1999Assignee: Exxon Research and Engineering Co.Inventors: William C. Baird, Jr., Gary B. McVicker, James J. Schorfheide, Darryl P. Klein, Sylvain Hantzer, Michel Daage, Michele S. Touvelle, Edward S. Ellis, David E.W. Vaughan, Jingguang G. Chen
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Patent number: 5925239Abstract: A process for the hydrodesulfurization (HDS) of multiple condensed ring heterocyclic organosulfur compounds present in petroleum and petrochemical streams and the saturation of aromatics over noble metal-containing catalysts under relatively mild conditions. The noble metal is selected from Pt, Pd, Ir, Rh and polymetallics thereof. The catalyst system also contains a hydrogen sulfide sorbent material.Type: GrantFiled: August 22, 1997Date of Patent: July 20, 1999Assignee: Exxon Research and Engineering Co.Inventors: Darryl P. Klein, Michele S. Touvelle, Edward S. Ellis, Carl W. Hudson, Sylvain Hantzer, Jingguang G. Chen, David E. W. Vaughan, Michel Daage, James J. Schorfheide, William C. Baird, Jr., Gary B. McVicker
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Patent number: 5888376Abstract: A process for converting a Fischer-Tropsch light oil stream to jet fuel by reacting said stream with a hydroisomerization catalyst in a reaction zone where the stream flows countercurrent to upflowing hydrogen-containing treat gas.Type: GrantFiled: June 3, 1997Date of Patent: March 30, 1999Assignee: Exxon Research and Engineering Co.Inventors: Robert J. Wittenbrink, Stephen Mark Davis, Larry L. Iaccino
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Patent number: 5882505Abstract: A process for converting Fischer-Tropsch wax streams to lubricants by reacting said stream with a dewaxing catalyst in a reaction zone where the stream flows countercurrent to upflowing hydrogen-containing treat gas.Type: GrantFiled: June 3, 1997Date of Patent: March 16, 1999Assignee: Exxon Research and Engineering CompanyInventors: Robert J. Wittenbrink, Stephen Mark Davis, Larry L. Iaccino
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Patent number: 5879536Abstract: A two-stage process for obtaining a substantial amount of olefinic product from a residua feedstock. The first stage is comprised of a thermal process unit containing a reaction zone comprised of a horizontal moving bed of fluidized hot particles operated at temperatures from about 500.degree. to 600.degree. C. and having a short vapor residence time, and the second stage thermal conversion zone operated at a temperature of about 700.degree. C. to about 1100.degree. C., and also having a short vapor residence time.Type: GrantFiled: December 17, 1996Date of Patent: March 9, 1999Assignee: Exxon Research and Engineering CompanyInventors: Willibald Serrand, Mitchell Jacobson
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Patent number: 5879535Abstract: A two-stage process for obtaining a substantial amount of olefinic product from a residua feedstock. The first stage is comprised of a thermal process unit containing a reaction zone comprised of a horizontal moving bed of fluidized hot particles operated at temperatures from about 500.degree. to 600.degree. C. and having a short vapor residence time, and the second stage thermal conversion zone operated at a temperature of about 700.degree. C. to about 1100.degree. C., and also having a short vapor residence time.Type: GrantFiled: December 17, 1996Date of Patent: March 9, 1999Assignee: Exxon Research and Engineering CompanyInventors: Willibald Serrand, Mitchell Jacobson, Michael R. Parrish, David G. Hammond
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Patent number: 5811624Abstract: A process for opening C.sub.5 and C.sub.6 rings without substantial cracking. A feedstream containing compounds comprised of at least one C.sub.5 -ring, at least one C.sub.6 -ring, or both, is contacted, in the presence of hydrogen, with a transition metal catalyst selected from the group consisting of carbides, nitrides, oxycarbides, oxynitrides, and oxycarbonitrides. The transition metal is selected from the group consisting of metals from Groups IVa, Va, and VIa of the Periodic Table of the Elements.Type: GrantFiled: September 5, 1995Date of Patent: September 22, 1998Assignee: Exxon Research and Engineering CompanyInventors: Sylvain Hantzer, Michele S. Touvelle, Jingguang G. Chen
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Patent number: 5763731Abstract: Naphthenic rings in naphthenic ring-containing compounds in a feedstream are selectively opened wherein at least about 50 wt. % of the ring compounds in the feedstream are characterized as containing at least one C.sub.6 ring having at least one substituent containing 3 or more carbon atoms. The naphthenic rings are opened without significant dealkylation of any pendant substituents on the ring. The feedstream, containing such compounds, is contacted with a supported catalyst containing a metal selected from Ir, Ru, or a mixture thereof, which catalyst when reacted with a feed comprised of 20 wt. % n-butylcyclohexane in heptane diluent will result in: a) at least a 10% yield of C.sub.10 paraffin yield/%C.sub.10 ring disappearance.Type: GrantFiled: April 12, 1996Date of Patent: June 9, 1998Assignee: Exxon Research and Engineering CompanyInventors: Gary B. McVicker, Michele S. Touvelle, Carl W. Hudson, David E. W. Vaughan, Michel Daage, Sylvain Hantzer, Darryl P. Klein, Edward S. Ellis, Bruce R. Cook, Owen C. Feeley, Joseph E. Baumgartner
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Patent number: 5739364Abstract: A method for removal of selected substances from carbonaceous material by use of a solvent is provided comprising: (a) introducing the carbonaceous material containing the selected substances into an extraction zone to form a bed; (b) introducing a gas which at a given pressure liquifies at a higher temperature than the solvent, the introduction being made under a pressure and at a temperature to cause the temperature and pressure of the extraction zone to be sufficient to cause the solvent to liquify when the solvent is introduced to the extraction zone; (c) introducing into the extraction zone the solvent capable of extracting the selected substance; (d) passing the solvent through the bed of carbonaceous material to extract the substances from the material; (e) removing the resulting substance/solvent mixture from the extraction zone to a separation zone under conditions which will maintain the solvent in liquid form as it is passed through the bed of carbonaceous material and out of the extraction zone toType: GrantFiled: June 10, 1996Date of Patent: April 14, 1998Assignee: University Research & MarketingInventor: Henry L. Franke
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Patent number: 5728851Abstract: A process for removing fats and oils from prepared animal-derived fried-derived food products, particularly fried meat, poultry, and fish products. The method involves treating the animal-derived fried-derived food product with a normally gaseous solvent at effective temperatures and pressures.Type: GrantFiled: April 21, 1995Date of Patent: March 17, 1998Assignee: University Research & MarketingInventor: Henry L. Franke
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Patent number: 5720872Abstract: A process for hydroprocessing liquid petroleum and chemical streams in two or more hydroprocessing stages, which stages are in separate reaction vessels and wherein each reaction stage contains a bed of hydroprocessing catalyst. The liquid product from the first reaction stage is sent to a stripping stage and stripped of H.sub.2 S, NH.sub.3 and other dissolved gases. The stripped product stream is then sent to the next downstream reaction stage, the product from which is also stripped of dissolved gases and sent to the next downstream reaction stage until the last reaction stage, the liquid product of which is stripped of dissolved gases and collected or passed on for further processing. The flow of treat gas is in a direction opposite the direction in which the reaction stages are staged for the flow of liquid. Each stripping stage is a separate stage, but all stages are contained in the same stripper vessel.Type: GrantFiled: December 31, 1996Date of Patent: February 24, 1998Assignee: Exxon Research and Engineering CompanyInventor: Ramesh Gupta
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Patent number: 5714663Abstract: A process for obtaining a substantial amount of olefinic products from a residua feedstock by use of a short vapor contact time thermal process unit comprised of a horizontal moving bed of fluidized hot particles.Type: GrantFiled: February 23, 1996Date of Patent: February 3, 1998Assignee: Exxon Research and Engineering CompanyInventors: Willibald Serrand, Mitchell Jacobson, Paul K. Ladwig, John F. Pagel, Michael R. Parrish, Noel Seimandi, Hans A. Weisenberger
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Patent number: 5714056Abstract: A process for deasphalting a residua feedstock by use of a short vapor contact time thermal process unit comprised of a horizontal moving bed of fluidized hot particles. It is preferred that a mechanical means be used to fluidize a bed of hot particles.Type: GrantFiled: July 17, 1995Date of Patent: February 3, 1998Assignee: Exxon Research and Engineering CompanyInventors: David G. Hammond, Mitchell Jacobson, John F. Pagel, Martin C. Poole, Willibald Serrand
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Patent number: 5707511Abstract: A process for simultaneously removing heteroatoms, such as sulfur, from a virgin distillate stream and a light catalytic cyclic stream in two reaction zones in a hydrotreating process unit. One reaction zone will be a low temperature reaction zone and the other will be the high temperature zone. In the low temperature reaction zone, the cracked stream is reacted with a hydrotreating catalyst at a predetermined temperature and in high temperature reaction zone, the virgin distillate stream is reacted with a catalyst which is less reactive than that of the first reaction zone. When catalyst in the high reaction zone is replaced with fresh catalyst the temperature is lowered so that it now becomes the low temperature zone in which the cracked stream is redirected.Type: GrantFiled: December 22, 1994Date of Patent: January 13, 1998Assignee: Exxon Research and Engineering CompanyInventors: Gerald E. Markley, George C. Hadjiloizou
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Patent number: 5705052Abstract: A process for hydroprocessing liquid petroleum and chemical streams in a single reaction vessel containing two or more hydroprocessing reaction stages. The liquid product from the first reaction stage is stripped of H.sub.2 S, NH.sub.3 and other dissolved gases, then sent to the next downstream reaction stage. The product from the downstream reaction stage is also stripped of dissolved gases and sent to the next downstream reaction stage until the last reaction stage, the liquid product of which is stripped of dissolved gases and collected or passed on for further processing. The flow of treat gas is in a direction opposite the direction in which the reaction stages are staged for the flow of liquid.Type: GrantFiled: December 31, 1996Date of Patent: January 6, 1998Assignee: Exxon Research and Engineering CompanyInventor: Ramesh Gupta
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Patent number: 5688472Abstract: Disclosed is a system for fluidizing a dense phase bed of solid particles, preferably a dense bed of solid catalyst particles. The system includes a dense bed solids housing, a dense bed solids support within the housing, a fluid injection component which sends fluids toward the solids supported within the housing, and a stuctural component which is capable of decreasing the distance between the dense bed solids support and the fluid injection component as the fluid is sent toward the solids that are supported within the housing.Type: GrantFiled: November 18, 1994Date of Patent: November 18, 1997Assignee: Exxon Research and Engineering CompanyInventor: William A. Wachter
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Patent number: 5658455Abstract: An improved fluidized bed coking process wherein a residuum feedstock is introduced into a first stage comprised of a short vapor contact time reactor containing a horizontal moving bed of fluidized hot particles. Carbonaceous material is deposited onto the hot particles on contact with the hot particles, and a vapor product is produced. The hot particles, containing the carbonaceous deposits, are fed to a second stage fluidized bed coking process.Type: GrantFiled: July 17, 1995Date of Patent: August 19, 1997Assignee: Exxon Research & Engineering CompanyInventors: David G. Hammond, Mitchell Jacobson, John F. Pagel, Martin C. Poole, Robert C. Green, Willibald Serrand