Patents Examined by D. E. Gantz
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Patent number: 4632749Abstract: A process is disclosed for the fluid catalytic cracking of a hydrocarbon oil which comprises contacting said oil at fluid catalytic cracking conditions with a catalyst consisting of silica, a rare earth metal component and a dealuminated zeolitic aluminosilicate having a SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of from 4.5 to 35, the essential X-ray powder diffraction pattern of zeolite Y, an ion exchange capacity of not greater than 0.070, a unit cell dimension a.sub.o of from 24.20 to 24.45 A, a surface area of at least 350 m.sup.2 /g (B-E-T), a sorptive capacity for water vapor at 25.degree. C. and a p/p.sub.o value of 0.10 of less than 4.00 weight percent and a Residual Butanol Test value of not more than 0.40 weight percent.Type: GrantFiled: September 7, 1984Date of Patent: December 30, 1986Assignee: UOP Inc.Inventor: Lee Hilfman
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Patent number: 4612110Abstract: At least one decomposable molybdenum dithiocarbamate compound is mixed with a hydrocarbon-containing feed stream. The hydrocarbon-containing feed stream containing such decomposable molybdenum dithiocarbamate compound is then contacted in a hydrofining process with a catalyst composition comprising a support selected from the group consisting of alumina, silica and silica-alumina and a promoter comprising at least one metal selected from Group VIB, Group VIIB and Group VIII of the Periodic Table. The introduction of the decomposable molybdenum dithiocarbamate compound may be commenced when the catalyst is new, partially deactivated or spent with a beneficial result occurring in each case.Type: GrantFiled: March 14, 1984Date of Patent: September 16, 1986Assignee: Phillips Petroleum CompanyInventors: Simon G. Kukes, Thomas Davis, Howard F. Efner, Robert J. Hogan, Daniel M. Coombs
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Patent number: 4601814Abstract: 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: GrantFiled: May 27, 1983Date of Patent: July 22, 1986Assignee: Total Engineering and Research CompanyInventors: Jean-Louis Mauleon, Robert J. Newman
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Patent number: 4596650Abstract: Sub-bituminous coal is directly liquefied in two stages by use of a liquefaction solvent containing insoluble material as well as 850.degree. F.+ material and 850.degree. F.- material derived from the second stage, and controlled temperature and conversion in the second stage. The process is in hydrogen balance.Type: GrantFiled: March 16, 1984Date of Patent: June 24, 1986Assignee: Lummus Crest, Inc.Inventors: Harvey D. Schindler, James M. Chen
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Patent number: 4595490Abstract: Normal paraffins present in high concentrations in light naphtha streams are separated from non-normal paraffins in a four or more bed adsorption system employing, on a cyclic basis, the processing steps of (1) cocurrent purge/adsorption, (2) cocurrent feed/adsorption, (3) countercurrent purge and (4) countercurrent displacement. A processing sequence is employed wherein the cocurrent purge/adsorption and countercurrent purge steps are carried out on a discontinuous basis, while cocurrent feed/adsorption and countercurrent displacement steps are carried out in overlapping sequence.Type: GrantFiled: April 1, 1985Date of Patent: June 17, 1986Assignee: Union Carbide CorporationInventors: Robert L. Gray, Jr., Peter L. Oetinger
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Patent number: 4594469Abstract: A process for oligomerizing alpha-olefins comprising contacting in a reactor zone under reaction conditions: (a) alpha-olefins having at least three carbon atoms; (b) an alkyl aluminum bromine or iodine compound having the formula R.sub.3 Al.sub.2 X.sub.3 or R.sub.n AlX.sub.3-n, wherein n is 1 or 2; R is an hydrocarbyl group and X is a reactive halogen selected from bromine and iodine; and (c) a cocatalyst which is (i) bromine, (ii) iodine, (iii) hydrocarbyl bromide having at least one halogen group reactive with said aluminum compound or (iv) hydrocarbyl iodide having at least one halogen group reactive with said aluminum compound.Type: GrantFiled: September 8, 1983Date of Patent: June 10, 1986Assignee: Uniroyal Chemical Company, Inc.Inventors: Frederick C. Loveless, Aspet V. Merijanian, David J. Smudin, Walter Nudenberg
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Patent number: 4590174Abstract: Olefins are converted into other olefins having different numbers of carbon atoms by contact with a catalyst comprising an inorganic refractory oxide support containing at least one of tungsten oxide and molybdenum oxide and a promoting amount of at least one methylating agent under conditions suitable for the methylating agent compounds to promote the activity of tungsten and molybdenum oxides for the disproportionation reaction.Type: GrantFiled: September 11, 1984Date of Patent: May 20, 1986Assignee: Phillips Petroleum CompanyInventors: Simon G. Kukes, Robert L. Banks
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Patent number: 4581123Abstract: This invention is based upon a new concept in carbon artifact manufacture, wherein a precursor can be manufactured by blending extracted components of at least one pitch to give an optimized mixture having the proper chemistries and rheology to provide high strength carbon artifacts.Type: GrantFiled: May 7, 1985Date of Patent: April 8, 1986Assignee: E. I. Du Pont de Nemours and CompanyInventor: Ghazi Dickakian
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Patent number: 4572185Abstract: A surgical needle holder is provided in which the handle members are arranged in a plane at right angles to associated jaws which are operated by the handles. A camming arrangement is coupled between the handles and jaws to convert the movement of the handles in one plane to movement of the jaws in a second perpendicularly arranged plane. The needle holder is employed for suturing in surgical procedures and facilitates placement of the hand of the operator as well as the application of force in a rotary sense thereby.Type: GrantFiled: February 23, 1984Date of Patent: February 25, 1986Inventor: Mark Rich
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Patent number: 4571247Abstract: A product for eliminating soot from chimneys and smoke ducts in general by inducing the complete combustion thereof, for use in the form of tablets which are introduced into the hearth of the combustion appliance. Said tablets are constituted essentially by a mixture of the following components: cupric chloride, ammonium chloride, stearin and/or paraffin, sulphur and tableting binders and auxiliaries such as talc and starch.Type: GrantFiled: February 27, 1985Date of Patent: February 18, 1986Assignee: Cavallino S.N.C. Prodotti ChimiciInventor: Bruno Barbieri
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Patent number: 4571294Abstract: Hydrocarbons may be recovered from hydrocarbon-bearing ore by reducing the ore to small particles, forming the reduced ore into pellets, setting the pellets, and then contacting the pellets with an extracting solvent. The extracted hydrocarbons usually have an ash content of less than about three weight percent, and the spent pellets usually retain less than 0.75 pounds of solvent per pound of spent pellets.Type: GrantFiled: July 2, 1984Date of Patent: February 18, 1986Assignee: Getty Oil CompanyInventors: Robert H. Friedman, Bertram E. Eakin
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Patent number: 4569750Abstract: Deposit formation on the interior surfaces of structures confining heated hydrocarbon fluids such as refinery units, particularly preheating stages associated with process units such as distillation units, hydrotreaters and thermal crackers, is inhibited by incorporating in the feed stock a small percentage (usually at least about 0.0005 weight percent) of a macrocyclic polyamine formed by cyclodehydration of reaction products of hydrocarbon substituted succinic anhydrides or carboxylic acids with poly 3-amino propyl compounds or by acylation of macrocyclic polyamine and polycyclic polyamines with hydrocarbon substituted succinic anhydride or carboxylic acids. It is desirable in some instances to dissolve additionally in the hydrocarbon fluid such as a feed stock along with the macrocyclic polyamine an oil-soluble dispersant, antioxidant and mixtures thereof.Type: GrantFiled: November 27, 1984Date of Patent: February 11, 1986Assignee: Exxon Research & Engineering Co.Inventors: Darrell W. Brownawell, Antonio Gutierrez, Stanley J. Brois, Donald F. Jacques, Gary L. Behelfer, Thomas M. Ferrell, Stephan Ilnyckyj
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Patent number: 4569752Abstract: A carbonaceous feed, such as a heavy hydrocarbonaceous oil or coal, and mixtures thereof, is upgraded by a combination coking and catalytic slurry hydroconversion process in which a catalyst precursor is added to the feed of the hydroconversion zone as a catalyst precursor concentrate prepared from a virgin hydrocarbonaceous oil and a thermally decomposable or oil dispersible metal compound.Type: GrantFiled: November 30, 1984Date of Patent: February 11, 1986Assignee: Exxon Research and Engineering Co.Inventors: Clyde L. Aldridge, Roby Bearden, Jr.
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Patent number: 4570026Abstract: MTBE can be dissociated with high selectivity to isobutene and methanol over acid action exchange resin catalysts using very high LHSV, e.g. of 7 to 35 at pressure drops of 0.5 to 50 psig through the fixed bed at reaction pressure of 0.5 to 4 atmospheres and bed temperatures in a fixed bed tubular-reactor in the range of 90.degree. C. to 160.degree. C. Good conversions are obtained and undissociated MTBE and by-products of the dissociation may be recycled to a liquid phase MTBE synthesis.Type: GrantFiled: August 12, 1983Date of Patent: February 11, 1986Assignee: Petro-Tex Chemical CorporationInventors: Donald A. Keyworth, Cecil G. McFarland
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Patent number: 4569751Abstract: A carbonaceous feed, such as a heavy hydrocarbonaceous oil or coal and mixtures thereof, is upgraded by a combination coking and catalytic slurry hydroconversion process.Type: GrantFiled: November 30, 1984Date of Patent: February 11, 1986Assignee: Exxon Research and Engineering Co.Inventors: Clarence M. Eidt, Jr., Clyde L. Aldridge, Roby Bearden, Jr.
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Patent number: 4570028Abstract: A method is disclosed for converting methane to acetylene wherein a mixture of oxygen-containing gas and hydrocarbons is compressed and ignited to react the mixture to form a product gas containing acetylene, ethylene and C.sub.2 + hydrocarbons, and the reacted mixture is rapidly expanded and cooled. The mixture contains a mole ratio of hydrocarbons to oxygen-containing gas ranging from about 0.75:1 to about 1.65:1.Type: GrantFiled: April 6, 1984Date of Patent: February 11, 1986Assignee: Atlantic Richfield CompanyInventors: Frederick L. Voelz, Frank Lowther
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Patent number: 4569755Abstract: This invention relates to a low energy process for the solvent extraction of aromatic hydrocarbons from hydrocarbon streams containing the same, using as the solvent N-cyclohexyl-2-pyrrolidone together with small amounts of water. This solvent may be recovered from the aromatics by cooling the aromatic/solvent mixture, and adding water, whereby separation takes place without distillation. The solvent may then be separated from the water by heating the solvent/water mixture.Type: GrantFiled: February 14, 1985Date of Patent: February 11, 1986Assignee: Sun Refining and Marketing CompanyInventors: Thomas J. McGinley, Peter Hosler
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Patent number: 4569753Abstract: A combination process is described for upgrading residual oils and high boiling portions thereof comprising metal contaminants and high boiling Conradson carbon forming compounds comprising a thermal visbreaking operation with fluidizable inert solids followed by a fluidized zeolite catalytic cracking operation processing demetallized products of the visbreaking operation, regenerating solid particulate of each operation under conditions to provide CO rich flue gases relied upon to generate steam used in each of the fluidized solids conversion operation and downstream product separation arrangements, separating the wet gas product stream of each operation in a common product recovery arrangement and processing the high boiling feed product of visbreaking comprising up to 100 ppm Ni+V metal contaminant over a recycled crystalline zeolite cracking catalyst distributed in a sorbent matrix material comprising a high level of Ni+V metal contaminant.Type: GrantFiled: August 19, 1983Date of Patent: February 11, 1986Assignee: Ashland Oil, Inc.Inventors: Lloyd E. Busch, Paul W. Walters, Oliver J. Zandona
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Patent number: 4568446Abstract: A method for converting hydrocarbonaceous materials such as oil shale, tar sands and other similar materials into hydrocarbonaceous fluids by use of a liquid hydrogen donor wherein the reaction is conducted in a substantially air free environment and the resultant modified organic content on said shale is recovered without the use of a hydrocarbonaceous solvent.Type: GrantFiled: November 21, 1984Date of Patent: February 4, 1986Assignee: Mobil Oil CorporationInventors: Costandi A. Audeh, Joseph J. Dickert, Jr.
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Patent number: 4568448Abstract: Metal poisoning of hydrodesulfurization catalysts is reduced by coating the catalyst surface with a hydrated clay mineral, hydrated alumina, hydrated silica, or mixtures thereof. The catalyst and process in which it is used are particularly useful for the desulfurization of residual oils to produce low-sulfur, fuel oil products.Type: GrantFiled: June 14, 1982Date of Patent: February 4, 1986Assignee: Mobil Oil CorporationInventors: Philip J. Angevine, Edward J. Rosinski