Patents Examined by O. Chaudhuri
  • Patent number: 4499195
    Abstract: A process for cogelling a smectite with an inorganic metal oxide which is unstable with respect to retaining a high surface area, to produce a cogel of high surface area which has good retention of surface area at high temperatures. Suitable smectites for the practice of this invention are hectorite, chlorite, montmorillionite, beidellite, or admixtures of two or more of these materials with each other or with other materials, or the like. Exemplary of inorganic oxide gels suitable for the practice of this invention are the Group IV-B metal oxides, especially titanium oxide, and other metal oxides such as the oxides of thorium, uranium, silicon, aluminum, and the like.
    Type: Grant
    Filed: December 23, 1982
    Date of Patent: February 12, 1985
    Assignee: Exxon Research & Engineering Co.
    Inventor: Kenneth S. Wheelock
  • Patent number: 4498975
    Abstract: A phosphorus-containing low alkali metal content zeolitic catalyst made from a clay starting material is provided. The catalyst is obtained by contacting a partially cation exchanged calcined zeolite-containing catalyst with a dihydrogen phosphate anion or a dihydrogen phosphite anion. A hydrocarbon catalytic cracking process utilizing the phosphorus-containing catalyst is also provided.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: February 12, 1985
    Assignee: Exxon Research & Engineering Co.
    Inventors: Lloyd A. Pine, Neville L. Cull
  • Patent number: 4497704
    Abstract: A process for the conversion of a hydrocarbon charge stock which comprises contacting said charge stock at hydrocarbon conversion conditions with a catalytic composite comprising a combination of a carrier material, a Group VIB metal component and Group VIII metal component wherein said Group VIB metal component and said Group VIII metal component are incorporated in said catalytic composite by means of a non-aqueous organic solution of a Group VIB metal compound and a Group VIII metal compound, wherein said non-aqueous organic solution comprises dimethylformamide, formamide, diethylformamide, ethylformamide, methylformamide, pyridine, aniline or toluene and wherein said catalytic composite is calcined in a non-oxidizing atmosphere.
    Type: Grant
    Filed: January 26, 1984
    Date of Patent: February 5, 1985
    Assignee: UOP Inc.
    Inventors: Mark J. O'Hara, Russell W. Johnson
  • Patent number: 4497703
    Abstract: The present invention concerns a hydrotreatment process for petroleum cuts, in order to achieve simultaneously their desulfurization and the improvement of their flow properties.The process comprises treating the cuts in the presence of a catalytic system based on a zeolitic crystalline silico aluminate of the offretite type, wherein the synthetic offretite used has a crystalline structure identical to natural offretite and has the chemical formula (M.sub.1 M.sub.2 . . . ).sub.2 (Al.sub.2 O.sub.3) (SiO.sub.2).sub.y in which y is comprised between 10 and 50, M.sub.1 and M.sub.2 are selected from among cations of group I and II of the Periodic Table of Elements and this offretite is associated with a bimetallic catalyst comprising a mixture of an oxide or sulfide of a metal selected from among the group comprising chromium, molybdenum and tungsten with an oxide or a sulfide of a metal selected from among the group comprising iron, cobalt and nickel.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: February 5, 1985
    Assignee: Elf France
    Inventors: Jacques Bousquet, Claude Guguen
  • Patent number: 4495060
    Abstract: A process for high hydroconversion of petroleum residua containing at least about 25 V % material boiling above 1000.degree. F. to produce lower boiling hydrocarbon liquid products and avoid undesirable precipitation of asphaltene compounds. In the process, the feedstock is at least about 50 percent catalytically hydroconverted to material boiling below 975.degree. F. and containing a mixture of gas and liquid fractions, after which the gas fraction is removed and the resulting liquid fractions is pressure-reduced and quenched to a temperature below about 775.degree. F. To avoid precipitation of asphaltene compounds which causes operational difficulties in the downstream equipment, the quench liquid used should have an API gravity not more than about 22.degree. API higher than the API gravity of the first pressure-reduced liquid fraction.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: January 22, 1985
    Assignee: HRI, Inc.
    Inventor: Lawrence M. Abrams
  • Patent number: 4495062
    Abstract: A catalyst support is prepared from a composite comprising two or more inorganic oxides by forming the composite into a shaped support material having at least 0.8 cc/gm of its pore volume in pore diameters of 0 nm (0 .ANG.) to 120 nm (1,200 .ANG.) and at least 0.1 cc/gm of its pore volume in pore diameters of 120 nm (1,200 .ANG.) to 5,000 nm (50,000 .ANG.) and heating said shaped support material in the presence of steam at sufficient elevated temperature, steam pressure, and time period to increase the average pore diameter of said shaped support in the absence of any appreciable reduction in pore volume. The inorganic oxide composite is selected from the group consisting of a mixture of alumina and silica; a mixture of alumina, silica, and oxides of phosphorus; a mixture of alumina and oxides of phosphorus; a mixture of alumina and boria; a mixture of alumina, boria and oxides of phosphorus; and a mixture of alumina, magnesia, and oxides of phosphorus, the oxides of phosphorus being calculated as P.sub.
    Type: Grant
    Filed: April 15, 1983
    Date of Patent: January 22, 1985
    Assignee: Standard Oil Company (Indiana)
    Inventors: Albert L. Hensley, Jr., Leonard M. Quick
  • Patent number: 4495063
    Abstract: A particular aspect of the invention concepts disclosed and described is directed to the use of a vented cup ballistic separation device and method of use for achieving rapid separation of a suspension of fluidized solid particulate and gasiform material. The vented cup ballistic separation apparatus is particularly discussed in conjunction with separating a suspension of catalyst particles from vaporous hydrocarbon reaction products of catalytic cracking discharged from a riser cracking operation. The vented cup ballistic separation apparatus particularly comprises an annular chamber about the upper periphery of an open ended riser conduit. The annular chamber is open in the upper end and one or more open end conduits extend outwardly from the annular chamber comprising means for attachment to cyclone separation means. The riser with vented cup or annular chamber terminates within a larger diameter chamber.
    Type: Grant
    Filed: November 1, 1982
    Date of Patent: January 22, 1985
    Assignee: Ashland Oil, Inc.
    Inventors: Paul W. Walters, Roger M. Benslay, Dwight F. Barger
  • Patent number: 4495061
    Abstract: An improved hydrocarbon conversion catalyst consisting essentially of: (A) an intermediate pore size silicaceous crystalline molecular sieve component substantially free of any catalytic loading metal; and (B) a matrix consisting essentially of (a) a gel selected from silica-alumina, silica-alumina-titania and silica-alumina-zirconia polygels, and (b) a hydrogenating component; and a process using said catalyst.
    Type: Grant
    Filed: September 15, 1981
    Date of Patent: January 22, 1985
    Assignee: Chevron Research Company
    Inventors: Jerome F. Mayer, Stephen J. Miller
  • Patent number: 4492625
    Abstract: A delayed coking process is provided in which the fresh hydrocarbonaceous oil feed is divided into at least two streams. One stream is introduced directly into the preheating zone of the coking zone and one stream is introduced into the coker product fractionator. The fractionator bottoms fraction is recycled to the preheating zone. The given fresh feed splitting configuration permits decreasing the recycle rate of the heavy coker product and increasing liquid yield.
    Type: Grant
    Filed: November 17, 1983
    Date of Patent: January 8, 1985
    Assignee: Exxon Research and Engineering Co.
    Inventor: David E. Allan
  • Patent number: 4490241
    Abstract: A catalytic cracking process comprising secondary injection of an additive catalyst, ZSM-5 type zeolite, at a point downstream of the point of introduction of the hydrocarbon feed is disclosed.
    Type: Grant
    Filed: April 26, 1983
    Date of Patent: December 25, 1984
    Assignee: Mobil Oil Corporation
    Inventor: Tai-Sheng Chou
  • Patent number: 4490246
    Abstract: A process is disclosed for treating hydrocarbon streams by the catalyzed oxidation of mercaptans to disulfides. In the process, the hydrocarbon-containing stream is admixed with air and then passed through an oxidation zone. The oxidation zone effluent is decanted to remove an aqueous alkaline solution in a high pressure separation zone. It is then depressurized into a low pressure separator in which dissolved excess nitrogen and oxygen are substantially removed from the hydrocarbons. The treated hydrocarbons are then pressurized to force their flow into a low pressure product receiving facility. This sequence eliminates or minimizes the discharge of gaseous nitrogen and oxygen and hydrocarbon vapors in the storage facility, where they are pollution abatement problems and possible safety hazards.
    Type: Grant
    Filed: November 18, 1983
    Date of Patent: December 25, 1984
    Assignee: UOP Inc.
    Inventor: Thomas A. Verachtert
  • Patent number: 4490242
    Abstract: The pour point of a hydrocarbon charge stock boiling above about 850.degree. F., is reduced by catalytically dewaxing the charge stock in the presence of a zeolite catalyst and subsequently subjecting at least the liquid portion thereof to hydrotreating in the presence of a hydrotreating catalyst comprising a hydrogenating component and a siliceous porous crystalline material from the class of ZSM-5, ZSM-11, ZSM-23 and ZSM-35 zeolites.
    Type: Grant
    Filed: January 13, 1984
    Date of Patent: December 25, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Stephen M. Oleck, Robert C. Wilson, Jr.
  • Patent number: 4487687
    Abstract: Heavy hydrocarbon oil to be processed is subjected to a treatment at elevated temperature and superatmospheric pressure in the presence of dispersed solids and molecular hydrogen and recycled hydrogen donor oil. By this treatment, a certain part of the asphaltenes absorbed on the solids may be coked. The product of that donor solvent hydrovisbreaking (DSV) is distilled. The distillate or distillates is or are catalytically hydrogenated. The visbreaking residue is used for the production of hydrogen. The hydrogenated products are separated in hydrocarbon fractions and are then processed further to fuels and/or petrochemical products and a part of the hydrogenated products is recycled as inherent donor solvent.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: December 11, 1984
    Assignee: Metallgesellschaft AG
    Inventors: Thomas Simo, Karl-Heinz Eisenlohr
  • Patent number: 4486296
    Abstract: Heavy oils are simultaneously subjected to hydrocracking and dewaxing using a catalyst comprising zeolite beta and an X or Y or other faujasite zeolite together with a hydrogenation component. The process is able to effect a bulk conversion of the oil while, at the same time, yielding a low pour point product.
    Type: Grant
    Filed: October 13, 1983
    Date of Patent: December 4, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Stephen M. Oleck, Robert C. Wilson, Jr.
  • Patent number: 4486297
    Abstract: Desulfurization and refining of aromatic hydrocarbon fraction containing organic sulfur compounds by catalytic hydrotreating can be performed with a high desulfurization rate (99 wt. % or higher) and without a significant loss (1 mol % or less) of the aromatic components.The improved process is characterized by preliminary sulfurization treatment of the catalyst of Co--Mo system, Ni--Mo system or Ni--Co--Mo system using thiophenes, and hydrotreating of the aromatic hydrocarbon fraction using thus treated catalyst at a relatively high temperature.
    Type: Grant
    Filed: January 9, 1981
    Date of Patent: December 4, 1984
    Assignee: JGC Corporation
    Inventors: Hideyuki Matsumoto, Shiyouichi Bando
  • Patent number: 4485006
    Abstract: A hydrorefining process for heavy hydrocarbonaceous oils, such as gas oils, is initiated by contacting a sulfided hydrorefining catalyst, such as nickel-molybdenum on alumina, with a light hydrocarbonaceous oil boiling in the range of C.sub.5 to 700.degree. F., in the presence of hydrogen, at specified conditions and, thereafter, contacting the catalyst with the heavy hydrocarbonaceous oil to be hydrorefined.
    Type: Grant
    Filed: February 3, 1983
    Date of Patent: November 27, 1984
    Assignee: Exxon Research and Engineering Co.
    Inventor: Omer Biceroglu
  • Patent number: 4483762
    Abstract: A hydrocarbon hydroconversion process is disclosed which comprises:combining the chargestock and a minor, effective amount of at least one molybdenum compound prepared by a method which comprises interacting molybdenum metal with at least one peroxy compound in the presence of at least one saturated alcohol having from one to four carbon atoms per molecule to solubilize at least a portion of the molybdenum metal;contacting the molybdenum compound within the chargestock in the presence of a gas selected from the group consisting of a hydrogen-containing gas, a hydrogen sulfide-containing gas, and a gas comprising hydrogen and hydrogen sulfide, at conditions to produce a solid catalyst within the chargestock capable of promoting the hydroconversion of at least a portion of the chargestock;contacting the chargestock containing the catalyst with hydrogen under hydroconversion conditions to hydroconvert at least a portion of the chargestock; andrecovering a hydroconverted hydrocarbon product.
    Type: Grant
    Filed: July 7, 1983
    Date of Patent: November 20, 1984
    Assignee: Atlantic Richfield Company
    Inventor: Martin P. Grosboll
  • Patent number: 4483764
    Abstract: Hydrocarbon conversion process catalyst comprising an active metallic component comprising at least one metal having hydrocarbon conversion activity and at least one oxygenated phosphorus component, and a support component comprising at least one porous refractory inorganic oxide matrix component and at least one crystalline molecular sieve zeolite component.
    Type: Grant
    Filed: October 27, 1983
    Date of Patent: November 20, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventors: Albert L. Hensley, Jr., Jeffrey T. Miller, Thomas D. Nevitt, A. Martin Tait
  • Patent number: 4483763
    Abstract: Nitrogenous compounds are eliminated from a synthetic hydrocarbon oil such as shale oil by partial hydrogenation followed by solvent extraction using a three-component solvent comprising an organic polar solvent, an acid and water. For example, a furfuryl alcohol, hydrochloric acid and water solution will remove the major quantity of the nitrogen compounds from shale oil which remain following the partial hydrogenation of the shale oil.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: November 20, 1984
    Assignee: Gulf Research & Development Company
    Inventors: Myong S. Kuk, Edgar W. Albaugh, John C. Montagna
  • Patent number: 4481010
    Abstract: A metallic chloride based creosote and soot removing composition including a phosphate corrosion inhibitor to reduce the corrosive attack on metal flue pipes is provided. The composition includes between about 15-60% metallic chloride, 20-60% trisodium phosphate dodecylhydrate, 15-60% anti-cake agents, such as non-swelling clay, sodium sulfate and tricalcium phosphate and 2-10% combustion initiator, such as wood flour.
    Type: Grant
    Filed: September 22, 1983
    Date of Patent: November 6, 1984
    Assignee: Hercules Chemical Company, Inc.
    Inventors: Leonard S. Mackowiak, Frank E. Ellison, Jay W. Fidler, N. George Tucker, Gangdhar M. N. Varma