Patents Represented by Attorney Richard C. Willson, Jr.
  • Patent number: 4612298
    Abstract: Commercial catalysts are prepared combining the various ingredients into a catalytic binder system which has been freed of sodium so that the catalyst ingredients can be preferably spray dried and used in Fluid Catalytic Cracking or Reduced Crude Conversion hydrocarbon conversion operations without subsequent washing or drying. Catalysts can even be prepared on site, e.g., in spray drier operations performed in the FCC/RCC regenerator. Low-sodium slurries of any or all of the following ingredients can be employed in the manufacture: zeolites, clays, sols, carbon blacks, sacrificial sieves, acid matrix substances, and getters.
    Type: Grant
    Filed: July 22, 1983
    Date of Patent: September 16, 1986
    Assignee: Ashland Oil, Inc.
    Inventors: William P. Hettinger, Jr., Hubert W. Beck
  • Patent number: 4612054
    Abstract: New coating compositions having controllable drying time and capable of drying rapidly at ambient temperatures without substantial evolution of gaseous by-products caused by conventional driers such as melamines or urea formaldehyde comprising carbodiimides or homologies of carbodiimides together with organic carboxylates. These compositions are particularly useful in providing fast-drying long-oil alkyds which form coatings exhibiting excellent hardness, toughness and resistance to humidity and salt spray.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: September 16, 1986
    Assignee: Ashland Oil, Inc.
    Inventor: Ray C. Hamon
  • 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: 4605636
    Abstract: The present invention is concerned with the method of regenerating the fluidizable, catalytic, particulate solids in the regenerator section of an FCC process, and RCC process or a metals removal system or "ART" type process. It is directed to the use of a conduit means for charging fluidizing gaseous material to a vertical cylindrical vessel for cooling fluidizable particulate solids flowing through said vertical cylindrical vessel, which conduit means comprises a horizontal header means having suspended therefrom a plurality of vertical and horizontally spaced apart conduits, each conduit having near its open end a restriction orifice. The header means is located near the top of the cylindrical cooling vessel. One portion of the vertical conduits has lower ends located in the upper half of the vessel and a second portion of the vertical conduits has lower ends located in a lower half of the vessel.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: August 12, 1986
    Assignee: Ashland Oil, Inc.
    Inventors: Paul W. Walters, H. Anthony Raiche, Lloyd E. Busch
  • 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: 4591425
    Abstract: A three stage catalytic cracking process capable of converting high molecular weight hydrocarbons containing catalyst poisons into products of lower molecular weight by cascading catalyst from a fluid catalytic cracking unit to a reduced crude conversion unit to a metals removal unit is disclosed. Efficiencies in conversion operations are made possible.
    Type: Grant
    Filed: December 14, 1984
    Date of Patent: May 27, 1986
    Assignee: Ashland Oil, Inc.
    Inventors: Stephen M. Kovach, Charles B. Miller
  • 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: 4585545
    Abstract: An aromatic gasoline component is prepared in a multi-step petroleum refining process starting with a heavy carbometallic petroleum fraction which is catalytically cracked to yield a light catalytic cycle oil which, in turn, is mildly hydrogenated to produce a partially saturated bicyclic hydrocarbon fraction which itself is catalytically cracked to yield a monoaromatic hydrocarbon fraction from which is recovered a gasoline product. The bicyclic hydrocarbons are converted to monoaromatics by selective partial saturation and ring scission.
    Type: Grant
    Filed: December 7, 1984
    Date of Patent: April 29, 1986
    Assignee: Ashland Oil, Inc.
    Inventors: Robert E. Yancey, Jr., William P. Hettinger, Jr.
  • Patent number: 4583311
    Abstract: A pair of horizontally-spaced vertically upright facing channel members are fixably mounted to an underlying horizontal support. An elongated planar base member has longitudinally spaced holes receiving the vertically upright facing channel members and rests on the horizontal support. Brackets affixed to the inside faces of the channel members mount an elongated planar cap member may be identical to and the mirror image of the planar base member at a vertically spaced position above the base member, being slidably lowered on the channel members, through the longitudinally spaced holes therein. A first endless loop sign is positioned in an axially upright position with its edges in vertical grooves near the peripheries of the base and cap members and sandwiched therebetween to form a first visual display.
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: April 22, 1986
    Assignee: Ashland Oil, Inc.
    Inventors: Richard E. Hosey, Ervan E. Rich
  • Patent number: 4584090
    Abstract: A method for catalytically cracking different fractions of crude oil with a zeolite containing catalyst in separate riser regeneration zone followed by sequential regeneration of catalyst particles in separate riser regeneration zones is described wherein the hydrocarbon vapor-catalyst suspension of hydrocarbon conversion is discharged downwardly from a half circle centrifugal separation conduit comprising the riser upper discharge section, second stage riser regeneration of catalyst is discharged downwardly from a half circle centrifugal separation section into the top of a high temperature catalyst recovery zone provided with cyclone separation zones external thereto. The first stage upflow riser regeneration zone is effected with oxygen lean gas and steam in an amount equal to, more or less, than the oxygen containing gas whereby the regeneration temperature is restricted from exceeding a desired upper temperature limit with or without promoting the water gas shift reaction.
    Type: Grant
    Filed: September 7, 1984
    Date of Patent: April 22, 1986
    Inventor: Carl D. Farnsworth
  • Patent number: 4582120
    Abstract: The present invention is concerned with the cooling of the fluidizable particulate solids, either catalytic or inert, in the regenerator section of an FCC process, an RCC process or a metals removal systems or "ART" type process. It is directed to the use of a conduit means for charging fluidizing gaseous material to a vertical cylindrical vessel for cooling fluidizable particulate solids flowing through said vertical cylindrical vessel, which conduits means comprises a horizontal header means having suspended therefrom a plurality of vertical and horizontally spaced apart conduits, each conduit having near its open end a restriction orifice. The header means can be located near the top of the cylindrical cooling vessel. While the example of a specific embodiment discloses one portion of the vertical conduits with lower ends located in a lower cross-sectional area of the vessel other arrangements sufficient to ensure proper fluidization are also possible.
    Type: Grant
    Filed: January 3, 1985
    Date of Patent: April 15, 1986
    Assignee: Ashland Oil, Inc.
    Inventors: Paul W. Walters, H. Anthony Raiche, Lloyd E. Busch
  • Patent number: 4576709
    Abstract: The present invention is concerned with upgrading residual oils to gasoline product with a coke selective hydrogen stable faujasite crystalline zeolite catalyst comprising at least 40 weight percent of alumina and rare earth metals in an acidic matrix and effecting regeneration thereof in an oxygen lean atmosphere under CO combustion conditions. A compound of antimony is added to passivate metal contaminants. The regeneration of the catalyst is effected to retain up to 0.25 weight percent carbon and heat balance of the operation is limited as a function of metal promoted CO burn within a dense fluid bed of catalyst being regenerated.
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: March 18, 1986
    Assignee: Ashland Oil, Inc.
    Inventors: Charles B. Miller, Roy E. Whitt
  • Patent number: 4569753
    Abstract: 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: Grant
    Filed: August 19, 1983
    Date of Patent: February 11, 1986
    Assignee: Ashland Oil, Inc.
    Inventors: Lloyd E. Busch, Paul W. Walters, Oliver J. Zandona
  • Patent number: 4561968
    Abstract: A catalyst nominally containing zeolite, clay and silica-alumina gel is disclosed. The zeolite is preferably partially exchanged with high La/Ce ratio solution in a wetting step. The catalyst 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: February 27, 1984
    Date of Patent: December 31, 1985
    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: 4556540
    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: August 15, 1983
    Date of Patent: December 3, 1985
    Assignee: Ashland Oil, Inc.
    Inventor: Roger M. Benslay
  • Patent number: 4552642
    Abstract: An H-Coal Process hydrogenation operation and catalyst life is substantially improved when using colloidal particles of catalyst comprising a colloidal matrix of silica, alumina, titania and combinations thereof coated with hydrogenating components selected from cobalt, molybdenum, nickel, tungsten and combinations thereof. The colloidal catalyst activity may be altered by alkaline promoters, other metals and acidic promoters.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: November 12, 1985
    Assignee: Ashland Oil, Inc.
    Inventor: William P. Hettinger, Jr.
  • Patent number: 4552647
    Abstract: A process for economically converting carbo-metallic oils to lighter products. The carbo-metallic oils contain 650.degree. F.+ material which is characterized by containing material which will not boil below about 1025.degree. F., a carbon residue on pyrolysis of at least about 2, and a nickel plus vanadium content of at least about 4 parts per million. This process comprises adding an additive to the feedstock consisting of a compound containing titanium, zirconium, or aluminum so as to restore cracking activity of high metal contaminated and deactivated, zeolite containing catalysts, resulting from processing of these carbo-metallic oils.
    Type: Grant
    Filed: April 18, 1984
    Date of Patent: November 12, 1985
    Assignee: Ashland Oil, Inc.
    Inventors: William P. Hettinger, Jr., Stephen M. Kovach, Hubert W. Beck
  • Patent number: 4551234
    Abstract: Regenerated sorbent employed for refining of heavy crude feedstocks is used to remove contaminants from specialized hydrocarbons, especially used motor oil. The simultaneous operation of a decontaminating unit supplied with regenerated sorbent particulate from the regenerator of a heavy hydrocarbon refining system is utilized.
    Type: Grant
    Filed: August 3, 1984
    Date of Patent: November 5, 1985
    Assignee: Ashland Oil, Inc.
    Inventor: William P. Hettinger, Jr.
  • Patent number: 4551231
    Abstract: Contaminating metals including nickel, vanadium, iron and copper are deposited on a fluid cracking catalyst during the processing of carbo-metallic containing oils such as residual oils, reduced crudes or topped crudes. These contaminating metals lead to undesirous side reactions such as dehydrogenation, coking and methyl group removal which adversely affect conversion and gasoline selectively. Furthermore vanadia deactivates the crystalline zeolite component of the catalyst in addition to causing catalyst agglomeration because of its pentoxide melting point by treatment with a reducing gas such as ammonia. The ammonia is added as ammonia or in the presence of diluents such as nitrogen, carbon dioxide, flue gas, fuel gas and steam. The reaction of ammonia with vanadium produces vanadium nitride which is water insoluble and facilitates the disposal of high vanadium containing spent of deactivated catalyst by landfill techniques.
    Type: Grant
    Filed: August 8, 1983
    Date of Patent: November 5, 1985
    Assignee: Ashland Oil, Inc.
    Inventors: Stephen M. Kovach, James L. Palmer
  • Patent number: 4549958
    Abstract: A process is disclosed for the treatment of a hydrocarbon oil feed having a significant content of vanadium to provide a higher grade of oil products by contacting the feed under treatment conditions in a treatment zone with sorbent material containing a metal additive to immobilize vanadium compounds. Treatment conditions are such that coke and vanadium are deposited on the sorbent in the treatment zone. Coked sorbent is regenerated in the presence of an oxygen containing gas at a temperature sufficient to remove the coke, and regenerated sorbent is recycled to the treatment zone for contact with fresh feed. The metal additive is present on the sorbent in an amount sufficient to immobilize the vanadium compounds in the presence of oxygen containing gas at the sorbent regeneration temperature. A sorbent composition disclosed comprises a kaolin clay containing the metal additive, which may be introduced into the clay during the treatment process or during sorbent manufacture.
    Type: Grant
    Filed: November 24, 1982
    Date of Patent: October 29, 1985
    Assignee: Ashland Oil, Inc.
    Inventors: H. Wayne Beck, James D. Carruthers, Edward B. Cornelius, William P. Hettinger, Jr., Stephen M. Kovach, James L. Palmer, Oliver J. Zandona