Patents Represented by Attorney Richard C. Willson, Jr.

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  • Stabilized coal oil mixtures
    Patent number: 4711643
    Abstract: Improved stabilizers for use in coal-oil mixtures are disclosed and comprise quaternary ammonium hydroxides, preferably they are formed by the reaction of a molar excess of sodium hydroxide or lithium hydroxide with a quaternary ammonium salt.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: December 8, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Paul C. Kemp, Walter Lyons
  • Carbo-metallic oil conversion
    Patent number: 4708785
    Abstract: Heat balance in a residual oil conversion unit can be controlled as a function of Conradson carbon of the feed, water added to the feed, hydrogen in the coke produced, CO.sub.2 /CO ratio, etc. Preferably, riser outlet temperature can be controlled to less than about 538.degree. C. (1000.degree. F.) at CO.sub.2 /CO flue gas ratios of 3/1 or less. Especially preferred are operations in a two-stage regenerator with cracking catalyst comprising at least 5000 ppm of Ni+V and residual carbon on regenerated catalyst of at least 0.1 wt. %. The contact time in the second stage of the regenerator being less than about 1/2 of that employed in the first stage, and with oxygen-lean gas being employed in the first stage. The heat transferred by the catalyst to the residual oil feed is preferably limited to about 500 to 1200 btu per pound of oil feed.
    Type: Grant
    Filed: March 20, 1985
    Date of Patent: November 24, 1987
    Assignee: Ashland Oil, Inc.
    Inventor: George D. Myers, deceased
  • Inhibiting leaching of metals from catalysts and sorbents and compositions and methods therefor
    Patent number: 4701219
    Abstract: During use in hydrocarbon conversion processes, sorbents, e.g. for carbon and metals, and catalysts become contaminated with metals, e.g. heavy metals such as vanadium, nickel and sodium. Leaching of heavy metals can be sharply reduced prior to disposal of such spent particulate materials by treatment with alkaline earth metal compound, e.g. lime, calcium fluoride, calcium sulfate, and barium chloride. Surprisingly, calcium chloride, calcium carbonate, sodium bicarbonate are relatively ineffective.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: October 20, 1987
    Assignee: Ashland Oil, Inc.
    Inventor: Joseph C. Bonee
  • Vented riser
    Patent number: 4701307
    Abstract: An improved ballistic separation device results from surrounding the downstream end of a progressive flow reactor or riser reactor with a concentric conduit that is in fluid communication with a cyclone separator and optionally in fluid communication with dipleg take-offs. The device may also include a bevelled lip or projection at the axial opening of the progressive flow reactor.
    Type: Grant
    Filed: May 6, 1986
    Date of Patent: October 20, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Paul W. Walters, Roger M. Benslay
  • Process and apparatus for cooling during regeneration of fluid cracking catalyst
    Patent number: 4698212
    Abstract: In an apparatus for the regeneration of fluid cracking catalyst, the catalyst is cooled in a heat exchanger mounted to the lower side of the regenerator and cool catalyst is returned to the regenerator by means of a separate gas lift.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: October 6, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Paul W. Walters, H. Anthony Raiche, Ronald L. Harness, Genaro M. Quodala
  • Cyclone for lessening formation of carbonaceous deposits
    Patent number: 4687492
    Abstract: Disclosed is an insert which surrounds the vapor outlet of a modified cyclone that lessens the tendency for carbonaceous deposits to form within the cyclone when separating mixtures of particulate and conversion products from high Conradson carbon feedstocks.
    Type: Grant
    Filed: July 15, 1986
    Date of Patent: August 18, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Paul W. Walters, A. V. Peppard
  • Ballistic separation of particles in a progressive flow reactor
    Patent number: 4678642
    Abstract: An apparatus for separating solid particulates from vapors comprising: a disengaging chamber, a progressive flow reactor, a means for effecting flow of a gas-solid stream, and a take-off conduit which further includes providing a hole through the progressive flow reactor to permit upstream of the take-off conduit a pathway for vapors from within the disengaging chamber to pass into the progressive flow reactor. Specific limitations as to the size of the opening through the progressive flow reactor in relationship to the effective diameter of the progressive flow reactor, and the opening of the take-off conduit are disclosed.
    Type: Grant
    Filed: January 10, 1985
    Date of Patent: July 7, 1987
    Assignee: Ashland Oil, Inc.
    Inventor: Donald M. Lee
  • Process for the manufacture of carbon fibers and feedstock therefor
    Patent number: 4671864
    Abstract: Disclosed herein is an improved pitch for making readily stabilizable, substantially nonmesophasic carbon fibers. The pitch has a softening point of about 250.degree. C.(480.degree. F.) or above and is produced from an unoxidized thermal petroleum pitch by selectively reducing or eliminating a portion of the low molecular weight materials in a very short period of time so that the tendency to produce mesophase pitch is eliminated or reduced and so that the chemical integrity of the components of the higher molecular weight fractions is preserved as much as possible. Also disclosed is a method of producing carbon fibers therefrom and rovings or mats from such fibers.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: June 9, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: William R. Sawran, Frank H. Turrill, John W. Newman, Norman W. Hall, Clifford Ward
  • Dry blending with fibers
    Patent number: 4669887
    Abstract: Disclosed is a method and apparatus for avoiding the clumping of fibers having diameters and lengths in certain ranges during dry blending of such fibers into a dry matrix material. The process comprises distributing fibers in a vaporous medium, and transporting fluidized fibers to a mixing zone containing a dry matrix material. Concurrently with stirring and blending of the dry matrix material with fluidized fibers, the fluidized fibers having been separated at least partially from a fluidized vapor are gradually introduced into the mixing zone. This process avoids the phenomena of "balling" that otherwise occurs with certain fibers.
    Type: Grant
    Filed: February 19, 1986
    Date of Patent: June 2, 1987
    Assignee: Ashland Oil, Inc.
    Inventor: Donald M. Lee
  • Method and arrangement of apparatus for cracking high boiling hydrocarbon and regeneration of solids used
    Patent number: 4666586
    Abstract: A method and arrangement of apparatus is provided for catalytically cracking liquid hydrocarbons to form gaseous and liquid fuel products and effect regeneration of the used catalyst particles whereby means are provided which improve separation of formed suspensions in a substantially reduced time frame and combustion of substantial hydrocarbonaceous deposits is accomplished under restricted temperature conditions contributing to catalyst life in a two stage catalyst regeneration operation of restricted elevation. The apparatus combination of the present invention is preferably of low vertical profile by restricting the vertical length of the riser contact zone in one embodiment by providing a substantial horizontal section thereof in a downstream portion of the riser.
    Type: Grant
    Filed: January 5, 1984
    Date of Patent: May 19, 1987
    Inventor: Carl D. Farnsworth
  • Hydrocarbon cracking with yttrium exchanged zeolite Y catalyst
    Patent number: 4664780
    Abstract: A hydrocarbon cracking catalyst comprises rare earth exchanged "Y" zeolite which has been further ion exchanged to enhance the yttrium content. The catalyst is employed in a fluid catalytic cracking process to maximize gasoline.
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: May 12, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Charles F. Lochow, Daniel B. Kovacs
  • Water-borne permanent coating compositions and processes therefor
    Patent number: 4659380
    Abstract: Water reducible, dispersible, corrosion resistant coating compositions and methods for their manufacture are disclosed and demonstrated to be useful for protecting metals from corrosion. The composition comprises a water reducible, dispersible alkyd resin; a coupling agent; a surfactant; an amine; one or more driers; a chelating agent; water; and in one embodiment, a metallic inhibitor.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: April 21, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Jonathan K. Winters, Fredrick B. Savell, III
  • Method and composition of asphaltic roofing fluxes
    Patent number: 4659389
    Abstract: Preparation of satisfactory asphaltic roofing fluxes from otherwise unsatisfactory fluxes is disclosed to involve addition of asphaltenes, and saturates in quantities which satisfy certain specified conditions. Air oxidation of a flux is shown to be surprisingly accelerated by the addition of highly branched saturates, especially in the presence of a carbonate oxidation catalyst.
    Type: Grant
    Filed: July 23, 1985
    Date of Patent: April 21, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Robert H. Wombles, Donald D. Carlos, Charles R. Gannon
  • Non-plugging air distribution system for spent bed cooler
    Patent number: 4656971
    Abstract: Apparatus is described for a non-plugging gas distribution system supplying fluidizing gas to a fluid bed undergoing cooling.
    Type: Grant
    Filed: May 13, 1986
    Date of Patent: April 14, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Robert L. Eaton, Edward V. Creamer
  • Metal-sulfonate/piperidine derivative combination protective coatings
    Patent number: 4650692
    Abstract: Adding a combination of sterically hindered tertiary amines or derivatives, e.g. piperidine and derivatives, with overbased metal (e.g. calcium, magnesium, barium, zinc, etc.) sulfonate, wax and oxidized petrolatum solvent based rust preventative compositions dramatically increases weather and salt-fog protection.
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: March 17, 1987
    Assignee: Ashland Oil, Inc.
    Inventor: Roger E. Hayner
  • Abrasion resistant latex underbody coating
    Patent number: 4649170
    Abstract: Water-based acrylic impact resistant underbody coating based on a one hundred percent elastic breathable acrylic coating, including coalescing agent and amine and preferably including corrosion inhibitors; plus defoamers, surfactants, fillers, e.g., calcium carbonate and pigments.
    Type: Grant
    Filed: April 25, 1985
    Date of Patent: March 10, 1987
    Assignee: Ashland Oil, Inc.
    Inventor: William F. Reid
  • Waterborne firm coating for temporary protection of parts, providing controlled lubrication during assembly
    Patent number: 4647309
    Abstract: A waterbase coating composition for use in protecting the threads of metal studs during automotive production line phosphating, electrostatic painting and welding. Composition also provides controlled lubricity as well as even torque during the tightening sequency of fasteners by robotics.
    Type: Grant
    Filed: March 7, 1985
    Date of Patent: March 3, 1987
    Assignee: Ashland Oil, Inc.
    Inventor: Roger E. Hayner
  • Non-plugging air distribution system for spent bed cooler
    Patent number: 4628868
    Abstract: Apparatus is described for a non-plugging gas distribution system supplying fluidizing gas to a fluid bed undergoing cooling.
    Type: Grant
    Filed: February 8, 1985
    Date of Patent: December 16, 1986
    Assignee: Ashland Oil, Inc.
    Inventor: Robert L. Eaton
  • Large pore catalysts for heavy hydrocarbon conversion
    Patent number: 4624773
    Abstract: Disclosed is a catalyst, a method for its preparation, and a process for its use in the production of high octane gasoline and/or other valuable liquid hydrocarbon products from carbo-metallic oils contaminated with heavy metals and coke precursors. The catalyst is prepared from a shapable composition containing reticulated carbon black particles which are subsequently removed by burning, as in a catalyst regenerator, to provide large feeder pores in a shaped catalyst structure. The catalyst and process conditions for its use facilitate conversion of the contaminated oils to lighter products at catalytic sites within the catalyst structure which may contain zeolitic materials.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: November 25, 1986
    Assignee: Ashland Oil, Inc.
    Inventors: William P. Hettinger, Jr., James E. Lewis
  • Process for cooling during regeneration of fluid cracking catalyst
    Patent number: 4614726
    Abstract: In a process apparatus for the regeneration of fluid cracking catalyst, the catalyst is cooled in an exchanger mounted to the lower side of the regenerator and cool catalyst is returned to the regenerator by means of gas lift.
    Type: Grant
    Filed: June 21, 1985
    Date of Patent: September 30, 1986
    Assignee: Ashland Oil, Inc.
    Inventors: Paul W. Walters, H. Anthony Raiche, Ronald L. Harness, Genaro M. Quodala