Patents Examined by O. Chaudhuri
  • Patent number: 4606811
    Abstract: In a reduced crude conversion the catalyst is regenerated with mixture of oxygen-enriched gas and H.sub.2 O either as steam or preferably as water to provide additional expansion and facilitate fluidization, while converting coke on catalyst to CO and H.sub.2 with minimum CO.sub.2 formation. The CO can be combined with hydrogen to produce methane, methanol or Fischer-Tropsch liquid hydrocarbons or can be passed through the reduced crude conversion operation as lift gas, or as cooling medium or subjected to water-gas shift to produce addition H.sub.2.
    Type: Grant
    Filed: October 2, 1984
    Date of Patent: August 19, 1986
    Assignee: Ashland Oil, Inc.
    Inventor: William P. Hettinger
  • Patent number: 4606815
    Abstract: A process for hydrotreating hydrocarbon feedstocks using shaped catalysts is disclosed. When the catalyst is used for diffusion limited reactions, and particularly when it is used for demetalation, shaped catalysts give longer catalyst lifetimes. Preferred shaped include oval and elliptical shapes, with and without bumps.
    Type: Grant
    Filed: September 28, 1984
    Date of Patent: August 19, 1986
    Assignee: Chevron Research Company
    Inventor: Kirk R. Gibson
  • Patent number: 4606734
    Abstract: A container mixing system wherein a medicament is placed in a container mounted externally of a container with a diluent. Mixing of the medicament in one container with the diluent in the other is accomplished by attaching an additive assembly with a piercing element to an additive port of the diluent container to pierce a diaphragm in the additive port and a diaphragm or stopper in the additive container. In one embodiment, the additive assembly includes a bellows portion which will permit movement of the piercing element through the additive assembly stopper and the port diaphragm while maintaining a sterile medicament in a glass vial.
    Type: Grant
    Filed: February 22, 1984
    Date of Patent: August 19, 1986
    Assignee: Abbott Laboratories
    Inventors: Mark E. Larkin, Ralph M. Quin
  • Patent number: 4605488
    Abstract: Relatively heavy and relatively light lube chargestocks are dewaxed in two parallel, separate reactors. The reactor used for dewaxing the relatively light chargestock contains a crystallize zeolite having pore openings defined by: (1) a ratio of sorption of n-hexane to o-xylene, on a volume percent basis, of greater than 3, which sorption is determined at a P/P.sub.o of 0.1 and at a temperature of 50.degree. C. for n-hexane and 80.degree. C. for o-xylene and (2) by the ability of selectively cracking 3-methylpentane (3MP) in preference to the doubly branched 2,3-dimethylbutane (DMB) at 1000.degree. F. and 1 atmosphere pressure from a 1/1/1 weight ratio mixture of n-hexane/3-methyl-pentane/2,3-dimethylbutane, with the ratio of rate constants k.sub.3MP /k.sub.DMB determined at a temperature of 1000.degree. F. being in excess of about 2, e.g., natural and synthetic ferrierite, ZSM-22, ZSM-23, ZSM-35 and mixtures thereof.
    Type: Grant
    Filed: May 13, 1985
    Date of Patent: August 12, 1986
    Assignee: Mobil Oil Corporation
    Inventors: Arthur W. Chester, William E. Garwood, James C. Vartuli
  • Patent number: 4604187
    Abstract: Y Zeolites are prepared with rare earth cations and Group VIII metal cations exchanged thereinto, such zeolites being especially useful in hydrocracking catalysts. The zeolites of the invention are prepared by exchanging a sodium Y zeolite with cations of one or more rare earth elements followed by a calcination, an ammonium ion exchange, and a Group VIII metal cation exchange. The resultant zeolite is not only highly active for catalytically promoting hydrocracking reactions but is also, after use in hydrocracking environments resulting in coke deposition, essentially completely regenerable by combustion of the coke.
    Type: Grant
    Filed: June 3, 1985
    Date of Patent: August 5, 1986
    Assignee: Union Oil Company of California
    Inventor: John W. Ward
  • Patent number: 4604189
    Abstract: Catalytic hydroconversion of a relatively heavy hydrocarbon residual fraction is effected by adding a thermally decomposable metal compound to the oil, along with an acidic catalyst solid to the oil, and passing the mixture to a hydroconversion zone containing hydrogen at an elevated temperature. Preferred metals are cobalt and molybdenum. Preferred solids are large pore zeolites, silica/alumina, clays and surface activated metal oxides.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: August 5, 1986
    Assignee: Mobil Oil Corporation
    Inventors: Francis J. Derbyshire, Philip Varghese
  • Patent number: 4602993
    Abstract: A process is disclosed for the production of high octane gasoline and/or other valuable lower molecular weight products from carbo-metallic oils. Examples include crude oil, topped crude, reduced crude, residua, the extract from solvent de-asphalting and other heavy hydrocarbon fractions. These carbo-metallic oils contain quantities of coke precursors and heavy metal catalyst poisons substantially in excess of what is normally considered acceptable for FCC processing (fluid catalytic cracking) and substantial amounts of sulfur, nitrogen and other troublesome components may also be present. Such carbo-metallic oils are converted to the desired products in a catalytic conversion process. Named "RCC" (Reduced Crude Conversion) after a particularly common or useful carbo-metallic feed, the present process is by no means restricted to reduced crude or to oils of petroleum origin, having utility in the processing of oils from coal, shale and other sources.
    Type: Grant
    Filed: April 1, 1983
    Date of Patent: July 29, 1986
    Assignee: Ashland Oil, Inc.
    Inventor: George D. Myers
  • Patent number: 4601814
    Abstract: A process is described for converting residual oil with fluid catalyst particles which comprises passing an upflowing suspension of fluid catalyst particles at an elevated temperature upwardy through a riser reaction zone/atomizing a residual oil feed to be converted to a particle size commensurate with the particle size of the catalyst particles in the upflowing suspension; discharging the atomized residual oil at a velocity in excess of 300 ft./sec. for contact with said upflowing catalyst particle suspension; maintaining the temperature of contact between said catalyst particles and said atomized residual oil feed suspension sufficiently elevated to obtain up to 50 percent thermal conversion of the atomized oil feed and catalytic conversion thereof by an order of magnitude greater than obtainable with a less atomized oil feed; and separating the suspension vaporous products of the previous step from catalyst particles in a time frame less than two seconds.
    Type: Grant
    Filed: May 27, 1983
    Date of Patent: July 22, 1986
    Assignee: Total Engineering and Research Company
    Inventors: Jean-Louis Mauleon, Robert J. Newman
  • Patent number: 4601993
    Abstract: Hydrocarbon lubricating oil feedstocks are dewaxed by passing the waxy feedstock over a catalyst bed containing a mixture of medium pore zeolite and large pore zeolite catalysts havig a Constraint Index less than 2 and having hydroisomerization activity in the presence of a hydrogenation component.
    Type: Grant
    Filed: October 17, 1984
    Date of Patent: July 22, 1986
    Assignee: Mobil Oil Corporation
    Inventors: Pochen Chu, Jeffrey H. Yen
  • Patent number: 4600496
    Abstract: Pitch is converted to mesophase pitch in the presence of catalytically effective amounts of oxides, diketones, carboxylates and carbonyls of metals selected from vanadium, chromium, molybdenum, iron, nickel and cobalt. The crystalloidal or mesophase pitch obtained can be used for the production of carbon fibers and other carbon and graphite products and articles of manufacture of unusually high quality.
    Type: Grant
    Filed: November 18, 1983
    Date of Patent: July 15, 1986
    Assignee: Phillips Petroleum Company
    Inventors: Paul J. Cheng, Tammy M. Elkins
  • Patent number: 4600499
    Abstract: In a reduced crude conversion the catalyst is regenerated with mixture of oxygen-enriched gas and H.sub.2 O either as steam or preferably as water to provide additional expansion and facilitate fluidization, while converting coke on catalyst to CO and H.sub.2 with minimum CO.sub.2 formation. The CO can be combined with hydrogen to produce methane, methanol or Fischer-Tropsch liquid hydrocarbons or can be passed through the reduced crude conversion operation as lift gas, or as cooling medium or subjected to water-gas shift to produce addition H.sub.2.
    Type: Grant
    Filed: July 30, 1984
    Date of Patent: July 15, 1986
    Assignee: Ashland Oil, Inc.
    Inventor: William P. Hettinger, Jr.
  • Patent number: 4600497
    Abstract: Waxy shale oil feeds containing organonitrogen and/or organosulfur components are contacted with a catalyst comprising a Group VIB metal component on a support containing a crystalline aluminosilicate zeolite of the ZSM-5 type and a porous refractory oxide under conditions of elevated temperature and pressure and in the presence of hydrogen so as to simultaneously reduce its pour point and its organosulfur and/or organonitrogen content.
    Type: Grant
    Filed: May 8, 1981
    Date of Patent: July 15, 1986
    Assignee: Union Oil Company of California
    Inventors: John W. Ward, Timothy L. Carlson
  • Patent number: 4600498
    Abstract: A catalyst containing hydrogenation metals supported on a base having (1) a crystalline aluminosilicate zeolite having activity for cracking and (2) a dispersion of silica-alumina in an alumina matrix is employed to mildly hydrocrack a hydrocarbon oil.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: July 15, 1986
    Assignee: Union Oil Company of California
    Inventor: John W. Ward
  • Patent number: 4599162
    Abstract: Hydrocarbon feedstocks are dewaxed in a dual catalyst cascade process by passing the waxy feedstock over a crystalline silicate zeolite catalyst having a Constraint Index between 2 and 12, and then over a different crystalline silicate zeolite catalyst having a Constraint Index no less than 2.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: July 8, 1986
    Assignee: Mobil Oil Corporation
    Inventor: Jeffrey H. Yen
  • Patent number: 4594146
    Abstract: A zeolite of improved stability for use in acid-catalyzed reactions is prepared by mildly presteaming the catalyst under controlled conditions of temperature, time, and steam partial pressure. The resulting catalyst retains nearly the same activity as that of a fresh unsteamed catalyst.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: June 10, 1986
    Assignee: Mobil Oil Corporation
    Inventors: Arthur W. Chester, Yung-Feng Chu
  • Patent number: 4592828
    Abstract: Petroleum resid is upgraded in an improved process to produce a low pour point 650.degree.-775.degree. F. fraction without disturbing the product characteristics of other distillate boiling range fractions. The 650.degree.-775.degree. F. fraction is dewaxed separately from the remaining hydrodesulfurized product.
    Type: Grant
    Filed: May 7, 1984
    Date of Patent: June 3, 1986
    Assignee: Mobil Oil Corporation
    Inventors: Yung F. Chu, Stuart S. Shih
  • Patent number: 4592827
    Abstract: Heavy crudes or vacuum residues are treated in a thermal hydroconversion process in the presence of a metal catalyst from Groups IVb, Vb, VIb, VIIb and VIII of the Periodic Table of Elements and water. Fresh catalyst is introduced into the process as a soluble, metallic catalyst precursor which is then decomposed while feedstock admixed with water is preheated to a temperature of at least about 230.degree. C. but no more than about 420.degree. C.
    Type: Grant
    Filed: June 25, 1985
    Date of Patent: June 3, 1986
    Assignee: Intevep, S.A.
    Inventors: Roberto Galiasso, Jose A. Salazar, Alfredo Morales, Angel R. Carrasquel
  • Patent number: 4591426
    Abstract: A process for upgrading feedstocks containing not less than about 200 ppm metals, an API gravity of less than about 20.degree., a Conradson Carbon of more than about 8%, by hydroconversion with hydrogen in the presence of a naturally occurring inorganic material as a catalyst. The invention further provides, inter alia, subsequently fractionating the hydroconverted product and solvent deasphalting the distillation bottoms and optionally hydrodesulfurizing atmospheric distillates and the mix of vacuum gas oils and deasphalted oils separately. When a heavy crude of 12.degree. API, 10% Conradson Carbon, 3.2% sulfur and 350 ppm metals is fed to this process, more than 90% (v/v) of a synthetic crude of 25.degree.API, 0.17% sulfur and only 13.8% (v/v) 950.degree. F.+ fraction may be obtained.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: May 27, 1986
    Assignee: Intevep, S.A.
    Inventors: Julio H. Krasuk, Fernando J. Silva, Roberto E. Galiasso, Alfredo Souto
  • Patent number: 4588702
    Abstract: A catalyst nominally containing zeolite, clay and silica-alumina gel. The zeolite is preferably partially exchanged with high La/Ce ratio solution in a wetting step. The catayst and processes for its manufacture and use are disclosed. The catalyst is excellent for processing heavy oils, generally produces higher LCO/slurry oil ratio and has high metals tolerance.
    Type: Grant
    Filed: October 18, 1984
    Date of Patent: May 13, 1986
    Assignee: Ashland Oil, Inc.
    Inventors: H. Wayne Beck, James D. Carruthers, Edward B. Cornelius, Ronald A. Kmecak, Stephen M. Kovach, William P. Hettinger, Jr.
  • Patent number: 4586499
    Abstract: An arrangement for supporting a limb wound bandage includes a waist belt and couplers extending from the belt to the bandage, each coupler including a pair of clamp jaws with confronting intermeshing ridges and valleys sandwiching and gripping the bandage upper border. Bands extend upwardly from each pair of jaws and are superimposed and joined at their tops and engage a connector which in turn directly or indirectly engages the belt. A locking slide member slidably engages the superimposed bands and includes depending tongues slidably engaging the clamp jaw outside faces to releasably lock the clamp jaws in closed position.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: May 6, 1986
    Inventor: Esther Kaletzky