Patents Examined by O. Chaudhuri
  • Fluidized catalytic cracking process with long residence time steam stripper
    Patent number: 4481103
    Abstract: Process for reduction of sulfur oxides emissions to the atmosphere from FCC regenerators. Spent FCC cracking catalyst containing sulfur and coke deposits is stripped at 500.degree. to 700.degree. C. for 1 to 10 minutes with steam to remove at least a portion of said sulfur deposits from said catalyst prior to catalyst regeneration.
    Type: Grant
    Filed: October 19, 1983
    Date of Patent: November 6, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Frederick J. Krambeck, Donald M. Nace, Paul H. Schipper
  • High performance catalysts for carbometallic oil conversion and their manufacturing and use
    Patent number: 4480047
    Abstract: A catalyst nominally containing zeolite, preferably HY zeolite and/or ultrastable HY zeolite, clay, alumina and an acidic silica-alumina co-gel matrix. The zeolite is preferably partially exchanged with high La/Ce ratio solution in a wetting step, and rare earths are precipitated onto the matrix. The catalyst has high metals tolerance and is capable of cracking heavy reduced crude oils, producing higher LCO/slurry oil ratio.
    Type: Grant
    Filed: April 7, 1983
    Date of Patent: October 30, 1984
    Assignee: Ashland Oil, Inc.
    Inventors: H. Wayne Beck, James D. Carruthers, Edward B. Cornelius, Ronald A. Kmecak, Stephen M. Kovach, William P. Hettinger, Jr.
  • Method and apparatus for separating fluidized solid particles suspended in gasiform material
    Patent number: 4478708
    Abstract: The method and means of this invention comprises discharging a suspension of solids (inert or catalytic) in gasiform material (whether hydrocarbon vapors, combustion product flue gases, stripping gases or combinations thereof) from a riser contact zone through a plurality of radiating confined passageway emanating from the upper discharge periphery of the riser each of which is in tangential communication at the outer end of the confined passageway with a cylinder open in the bottom end thereof. The cylinder is closed at the top except for a coaxially aligned conduit of smaller diameter extending downwardly through said cylinder with its bottom open end terminating adjacent a lower portion of the inlet of the confined passageway.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: October 23, 1984
    Inventor: Carl D. Farnsworth
  • Hydroconversion process for hydrocarbon liquids using supercritical vapor extraction of liquid fractions
    Patent number: 4478705
    Abstract: A process for high hydroconversion of heavy hydrocarbon liquid feedstocks such as petroleum residua containing at least about 50 V % material boiling above 975.degree. F. to produce lower boiling hydrocarbon liquid and gas products, wherein heavy RCR materials and metals compounds are removed in-situ from the reactor effluent liquid by solvent vapor extraction using a process-derived solvent vapor at supercritical conditions. In the process, the feedstock is catalytically hydroconverted at 780.degree.-860.degree. F. temperature, and the resulting liquid fraction is contacted with a process-derived solvent vapor fraction having a normal boiling range of 250.degree.-400.degree. F. and heated to supercritical temperature to dissolve and extract substantially all the hydrocarbon liquid fractions, and separate heavy RCR materials and the metals compounds contained therein.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: October 23, 1984
    Assignee: HRI, Inc.
    Inventor: Partha S. Ganguli
  • Separation of regenerated catalyst from combustion products
    Patent number: 4477335
    Abstract: A method and apparatus for separating regenerated catalyst from gaseous combustion products within a regenerator. The apparatus comprises a downcomer within the regenerator vessel through which the catalyst and gaseous combustion products flow. Means are provided at the lower end of the downcomer for utilizing the momentum of the catalyst particles to separate them from the gaseous combustion products.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: October 16, 1984
    Assignee: Ashland Oil, Inc.
    Inventor: Roger M. Benslay
  • Acid dealuminated Y-zeolite and cracking process employing the same
    Patent number: 4477336
    Abstract: Cracking of hydrocarbons with a mixture of acid dealuminated, rare earth metal exchanged Y-zeolite having a SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of more than about 6 and not more than about 300, and non-dealuminated rare earth metal exchanged Y-zeolite and a matrix.
    Type: Grant
    Filed: July 11, 1983
    Date of Patent: October 16, 1984
    Assignee: Harshaw/Filtrol Partnership
    Inventor: Julius Scherzer
  • Catalyst and process for the hydrogenitrogenation and hydrocracking of high-nitrogen feeds
    Patent number: 4476011
    Abstract: There is disclosed a catalyst, which catalyst comprises a hydrogenation component comprising chromium, molybdenum, and at least one metal of Group VIII, a crystalline molecular sieve zeolite, and a porous refractory inorganic oxide. Suitable molecular sieve zeolites are those having pore diameters of at least 5 .ANG. (0.5 nm) and containing exchangeable cations, for example, faujasite crystalline aluminosilicates, mordenite crystalline aluminosilicates, ZSM crystalline aluminosilicates, and AMS crystalline metallosilicates.There are also disclosed processes for the hydrodenitrogenation and hydrocracking of a hydrocarbon stream containing a substantial amount of nitrogen compounds, which processes comprise contacting said stream under suitable conditions and in the presence of hydrogen with the aforesaid catalyst.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: October 9, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventors: A. Martin Tait, Thomas D. Nevitt, Albert L. Hensley, Jr.
  • Overnight cloud and color in lube dewaxing using platinum zeolite catalyst
    Patent number: 4474618
    Abstract: A highly dispersed platinum ZSM-5 catalyst used in hydrodewaxing lube stock yields a product with improved overnight cloud performance and lighter ASTM color.
    Type: Grant
    Filed: August 8, 1983
    Date of Patent: October 2, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Jeffrey H. Yen, Arthur W. Chester, Garwood, William E.
  • Use of cracking catalysts passivated by barium
    Patent number: 4473463
    Abstract: A cracking catalyst is contacted with barium or a compound thereof to mitigate the adverse effects of catalyst contaminants.
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: September 25, 1984
    Assignee: Phillips Petroleum Company
    Inventors: Brent J. Bertus, Dwight L. McKay
  • Method for producing distillable hydrocarbonaceous fuels and carbonaceous agglomerates from a heavy crude oil
    Patent number: 4473464
    Abstract: In a method for producing a distillable hydrocarbonaceous stream and carbonaceous agglomerates from a heavy crude oil by charging the crude oil and finely divided carbonaceous solids to a rotary kiln with the crude oil and carbonaceous solids being charged in a weight ratio from about 0.6 to about 1.5; tumbling the crude oil and finely divided carbonaceous solids in the rotary kiln at a temperature from about 850.degree. to about 1000.degree. F.
    Type: Grant
    Filed: May 7, 1980
    Date of Patent: September 25, 1984
    Assignee: Conoco Inc.
    Inventors: Lyndon D. Boyer, Matthew C. Sooter, Francis E. Sage
  • Catalyst and process for conversion of hydrocarbons
    Patent number: 4472267
    Abstract: An improved process for converting hydrocarbons using a catalyst which is periodically regenerated to remove carbonaceous deposits, the catalyst being comprised of a mixture containing, as a major component, solid particles capable of promoting hydrocarbon conversion at hydrocarbon conversion conditions, and, as a minor component, discrete entities comprising at least one alkaline earth metal-containing spinel, and at least one rare earth metal component associated with the spinel; thereby reducing the amount of sulfur oxides exiting the catalyst regeneration zone.Improved hydrocarbon conversion catalysts are also disclosed.
    Type: Grant
    Filed: May 16, 1983
    Date of Patent: September 18, 1984
    Assignee: Atlantic Richfield Company
    Inventors: Jin S. Yoo, John A. Jaecker
  • Immobilization of vanadia deposited on sorbent materials during visbreaking treatment of carbo-metallic oils
    Patent number: 4469588
    Abstract: A high pore volume solid sorbent material of low cracking activity and comprising a select group of metal additives to immobilize accumulated vanadium compounds deposited on the sorbent material in a heavy oil feed visbreaking zone is described and the conditions employed to effect demetallization and decarbonization of the heavy oil feed to produce vaporous products boiling up to about 1000.degree. F. Deposition of metal contaminants within the pores of the high pore volume material is encouraged by restricting the volume of the sorbent pores filled with oil feed to within the range of 1/4 to 2/3.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: September 4, 1984
    Assignee: Ashland Oil, Inc.
    Inventors: William P. Hettinger, Jr., Hubert W. Beck
  • Process for the conversion of asphaltenes and resins in the presence of steam, ammonia and hydrogen
    Patent number: 4469587
    Abstract: A process for upgrading heavy crude comprises the hydroconversion of asphaltenes and resins in the presence of steam and ammonia at high temperatures, followed by deasphalting to eliminate metals and remaining asphaltenes. By way of the process of the present invention, conversion of asphaltenes and resins is accomplished while at the same time insuring a low formation of gases and coke so as to obtain an end product with a high yield of distillates and low metal content. The process is particularly suitable for any type of heavy crude, for example those of the Orinoco zone, which possess a high content of asphaltenes and metals.
    Type: Grant
    Filed: September 2, 1983
    Date of Patent: September 4, 1984
    Assignee: Intevep, S.A.
    Inventors: Roberto E. Galiasso Tailleur, Jose A. Salazar Guillen, Donald Huskey, Alfredo L. Morales, Luig G. Aquino
  • Catalyst and process for conversion of hydrocarbons
    Patent number: 4469589
    Abstract: An improved process for converting hydrocarbons using a catalyst which is periodically regenerated to remove carbonaceous deposits, the catalyst being comprised of a mixture containing, as a major component, solid particles capable of promoting hydrocarbon conversion at hydrocarbon conversion conditions, and, as a minor component, discrete entities comprising at least one spinel, preferably alkaline earth metal-containing spinel; thereby reducing the amount of sulfur oxides exiting the catalyst regeneration zone.Improved hydrocarbon conversion catalysts are also disclosed.
    Type: Grant
    Filed: May 16, 1983
    Date of Patent: September 4, 1984
    Assignee: Atlantic Richfield Company
    Inventors: Jin S. Yoo, John A. Jaecker
  • Process for cracking high metals content feedstocks using a cracking catalyst mixture containing antimony and/or tin
    Patent number: 4466884
    Abstract: A process for cracking high metals content feedstocks which comprises contacting said charge stock under catalytic cracking conditions with a novel catalyst composition comprising a solid cracking catalyst and a diluent containing antimony and/or tin.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: August 21, 1984
    Assignee: Gulf Research & Development Company
    Inventors: Mario L. Occelli, Harold E. Swift
  • Removal of contaminants from organic compositions
    Patent number: 4465589
    Abstract: Metals, nitrogen and/or sulfur, particularly vanadium, nickel and nitrogen, are removed from organic compositions, particularly heavy hydrocarbon oils, by contacting the organic composition with a methylating agent, preferably dimethyl sulfate, under conditions sufficient to form a precipitate, including the contaminants, and separating the precipitate from the organic composition as by filtration, decantation, and the like. In another embodiment of the present invention, the treatment with the methylating agent is carried out in conjunction with treatment with an acid gas and water or a solvent, such as a combination of carbon dioxide and water.
    Type: Grant
    Filed: January 12, 1983
    Date of Patent: August 14, 1984
    Assignee: Phillips Petroleum Company
    Inventors: Semyon J. Kukes, Jesse R. Harris
  • Removal of contaminants from organic compositions
    Patent number: 4464251
    Abstract: Metals, nitrogen and/or sulfur, particularly vanadium, nickel and nitrogen, are removed from organic compositions, particularly heavy hydrocarbon oils, by contacting the organic compositions with a halogenating agent, preferably phosphorus oxychloride, under conditions sufficient to form a distinct phase including the contaminants, which is separable from the organic composition and separating the distinct phase from the organic composition as by filtration, decantation, and the like. In another embodiment of the present invention, the treatment with the halogenating agent is carried out in conjunction with treatment with an acid gas and water, as a combination of carbon dioxide and water, or a solvent.
    Type: Grant
    Filed: January 12, 1983
    Date of Patent: August 7, 1984
    Assignee: Phillips Petroleum Company
    Inventors: Semyon G. Kukes, Jesse R. Harris, Robert L. Banks
  • Hydrotreatment process
    Patent number: 4462897
    Abstract: A process for hydrotreating a whole shale oil or a shale oil fraction containing at least about 0.1 wt. % nitrogen comprises a catalyst comprising a chromium component, a molybdenum component, a phosphorus component, and at least one of a cobalt component and a nickel component, deposed on a support comprising at least one porous refractory inorganic oxide. Hydrotreatment comprises contacting a hydrocarbon stream, e.g., a whole shale oil. with hydrogen in the presence of the invented catalyst under hydrotreatment conditions.
    Type: Grant
    Filed: February 18, 1983
    Date of Patent: July 31, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventor: Jeffrey T. Miller
  • Combination visbreaking and hydrorefining with recycle of hydrorefined bottoms
    Patent number: 4462895
    Abstract: A heavy hydrocarbon oil comprising constituents boiling above 1050.degree. F. is upgraded by a combination visbreaking or hydrovisbreaking and hydrorefining process in which at least a portion of the hydrorefined bottoms fraction is recycled to the visbreaking zone. The hydrorefining zone is operated at conditions to convert at least a portion of the 1050.degree. F..sup.+ constituents to lower boiling hydrocarbons.
    Type: Grant
    Filed: February 25, 1983
    Date of Patent: July 31, 1984
    Assignee: Exxon Research & Engineering Co.
    Inventors: Omer Biceroglu, Bruce M. Sankey
  • Process for the preparation of fuel oil, fuel gas and pyrolysis coke by pyrolysis
    Patent number: 4463203
    Abstract: A process for the preparation of fuel oil, fuel gas and pyrolysis coke by heating to a temperature of 600.degree.-700.degree. C. a mixture of rubber, synthetic resin, brown coal and bentonite.
    Type: Grant
    Filed: November 13, 1981
    Date of Patent: July 31, 1984
    Inventor: Kim D. Gi