Patents Represented by Attorney E. Eugene Innis

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  • Slag reduction in coal-fired furnaces using oxygen enrichment
    Patent number: 4596198
    Abstract: A method for combusting slagging coal in a furnace comprising a firebox and at least one injection nozzle having a bore for a primary airstream and an annular passage for a secondary airstream, the nozzle communicating with the firebox, which method comprises (a) injecting a primary airstream containing a pulverized coal and injecting a secondary airstream through the injection nozzle into the flame zone of the furnace firebox, the combined primary and secondary airstream composing the total air for combustion and combusting the coal to yield a flame of combustion, and (b) injecting a sufficient amount of oxygen into the primary airstream such that an oxygen enriched primary airstream emanates from the injection nozzle and the oxygen concentration of the total air for combustion is about 22 to 27 volume percent, whereby the amount of slag deposition is reduced.
    Type: Grant
    Filed: January 28, 1985
    Date of Patent: June 24, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Eugene J. Greskovich, Walter A. Zanchuk
  • Process for the generation of gaseous and/or liquid nitrogen
    Patent number: 4595405
    Abstract: The present invention involves an efficient process for separating components of a gas stream by integrating a cryogenic separation unit and a membrane separation unit. One embodiment provides for the generation of one or more nitrogen-rich streams in the gas or liquid phase, or both, from a stream comprising oxygen and nitrogen; e.g., air.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: June 17, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Rakesh Agrawal, Steven R. Auvil
  • Method and apparatus for improving the sensitivity of a leak detector utilizing a cryopump
    Patent number: 4593530
    Abstract: A cryopump and method for using cryopumping to enhance the sensitivity of a leak detection system. The cryopump is used to control the relative pumping speeds of the gases normally frozen out on the pump or adsorbed in a cold adsorbent to thereby achieve the enhanced sensitivity of the system. The system is characterized by controlled access to the cold panel which is disposed within the warm panel.
    Type: Grant
    Filed: April 10, 1984
    Date of Patent: June 10, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Ralph C. Longsworth
  • Synthesis of neoalkanes
    Patent number: 4593147
    Abstract: Neoalkanes of the formula R.sub.1 R.sub.2 R.sub.3 CCH.sub.3 are synthesized by hydrogenation of a neoacid of the formula R.sub.1 R.sub.2 R.sub.3 CCOOH or a neoalcohol of the formula R.sub.1 R.sub.2 R.sub.3 CCH.sub.2 OH, wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different alkyl of 1-10 carbon atoms, at a temperature of 250.degree.-500.degree. C. over a copper oxide/zinc oxide catalyst.
    Type: Grant
    Filed: November 1, 1984
    Date of Patent: June 3, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Stephen A. Butter, Ilse Stoll
  • Process for separating CO.sub.2 and H.sub.2 S from hydrocarbons
    Patent number: 4589896
    Abstract: The present invention involves a process for separating components of a feed gas containing acid gases and hydrocarbons to form a CO.sub.2 -rich stream, an H.sub.2 S-rich stream and a hydrocarbon-rich stream. Separation is achieved by initially passing the feed gas through a plurality of membrane separation units to produce a hydrocarbon stream and an acid gas stream. The acid gas stream undergoes further separation to produce a CO.sub.2 -rich product stream and an H.sub.2 S-rich stream. This process is especially adaptable for treating natural gas streams and gas streams resulting from enhanced oil recovery operations.
    Type: Grant
    Filed: January 28, 1985
    Date of Patent: May 20, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Michael S. K. Chen, Stephen P. Goff, James VanOmmeren
  • Low temperature curing of nonwoven products bonded with N-methylolacrylamide-containing copolymers
    Patent number: 4590102
    Abstract: A nonwoven substrate impregnated with a vinyl acetate/ethylene/N-methylolacrylamide or vinyl chloride/ethylene/N-methylolacrylamide copolymer emulsion binder is cured by employing an acidic substance having a pKa of 1 to 2, sufficiently drying to volatilize a substantial amount of the water while not substantially cross-linking the copolymer binder and maintaining the dried nonwoven substrate at a temperature less than that for drying for a time sufficient to develop essentially full cure.
    Type: Grant
    Filed: January 7, 1985
    Date of Patent: May 20, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Peter L. Rosamilia, George Davidowich
  • Synthesis of neoalkanols
    Patent number: 4588848
    Abstract: Neoalkanols of the formula R.sub.1 R.sub.2 R.sub.3 CCH.sub.2 OH are synthesized by hydrogenation of a neoacid of the formula R.sub.1 R.sub.2 R.sub.3 CCOOH, wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different alkyl of 1-10 carbon atoms, at a temperature of 175.degree.-350.degree. C. and a hydrogen pressure of 10-100 Kg/cm.sup.2 over a copper oxide/zinc oxide hydrogenation catalyst.
    Type: Grant
    Filed: November 1, 1984
    Date of Patent: May 13, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Stephen A. Butter, Ilse Stoll
  • Control of sulfates in membrane cell chlor-alkali process
    Patent number: 4586993
    Abstract: Method of addition of calcium ions to salt-depleted brine prior to resaturation, wherein the concentration of sulfate impurity is controlled. The invention relates to a process for the electrolysis of aqueous alkali metal chloride solutions to produce chlorine and high purity alkali metal hydroxide solutions.
    Type: Grant
    Filed: May 31, 1985
    Date of Patent: May 6, 1986
    Assignee: Stearns Catalytic World Corporation
    Inventor: Thomas F. O'Brien
  • Fast regenerating adsorption column
    Patent number: 4582516
    Abstract: A fast regenerating absorption column including a high pressure outer vessel containing an inner vessel packed with adsorption medium the inner vessel thermally isolated from the outer vessel and including means to rapidly heat and cool the adsorption medium so that a single column can be used to purify an incoming gas and can be rapidly regenerated to eliminate the need for switching adsorbers.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: April 15, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Frank J. Kadi
  • Delayed action/enhanced curing catalysis in polyurethane systems
    Patent number: 4582861
    Abstract: A method for preparing polyurethane product by the reaction of an organic polyisocyanate with a polyester or polyether polyol in the presence of a catalytically effective amount of a catalyst system consisting essentially of a tertiary amine and 1 to 35 wt %, based on the tertiary amine, of an N-hydroxyalkyl quaternary ammonium carbonylate salt. The use of such catalyst system advantageously improves the cure time of the urethane reaction, when compared to a system containing solely a tertiary amine, while maintaining the same initiation of the reaction. This advantage can be transferred to a delay in the initiation time while maintaining or shortening the cure time by adjustments in the total amount of the catalyst system used.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: April 15, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Edward A. Galla, Robert L. Ricci, Gary D. Andrew
  • Alkyl polyamine ethers as catalysts for isocyanate reactions
    Patent number: 4582938
    Abstract: This invention relates to a polyamine composition suited for catalytically effecting reaction between organic polyisocyanate and an active hydrogen compound as measured by the Zerewitinoff method e.g. a polyol, a polyester polyol of polyether in the manufacture of urethane compositions.
    Type: Grant
    Filed: October 24, 1983
    Date of Patent: April 15, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Howard L. Harwell
  • Amine production via condensation reactions using rare earth metal hydrogen phosphates as catalysts
    Patent number: 4582904
    Abstract: Synthesis of organic amines by condensation of organic hydroxy compound with ammonia or a primary or secondary amine in the presence of a rare earth metal hydrogen phosphate catalyst.
    Type: Grant
    Filed: January 6, 1984
    Date of Patent: April 15, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventors: James E. Wells, Victoria Eskinazi
  • Method for adsorbing and storing hydrogen at cryogenic temperatures
    Patent number: 4580404
    Abstract: Hydrogen is stored at cryogenic temperatures by adsorption on porous carbon having a nitrogen BET apparent surface area above about 1500 m.sup.2 /g. Hydrogen can be adsorbed and desorbed in the context of a cryopump, having as the pumping element a panel, having large particles of pressed porous carbon thereon.
    Type: Grant
    Filed: August 9, 1985
    Date of Patent: April 8, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Guido P. Pez, William A. Steyert
  • Pressurized fluid lift system for a cryogenic freezer
    Patent number: 4580413
    Abstract: A cooling and or freezing tunnel is described having a toggle linkage and a pressurized fluid drive to open and close a plurality of openable sections of the tunnel for access and cleaning of the interior. The toggle linkages provide more accurate and reliable movement than the prior art means for opening such tunnels.
    Type: Grant
    Filed: June 6, 1985
    Date of Patent: April 8, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventor: David J. Klee
  • Catalytic dehydrogenation reactor cycle
    Patent number: 4581339
    Abstract: A method for reheating of a catalytic reactor by successive oxidations and reductions of a multiple oxidation state catalyst.Heat is added to the catalyst bed by a series of successive oxidation and reduction reactions occurring on the catalyst. Both catalyst oxidation and catalyst reduction are exothermic reactions, and both reactions generate heat to increase the temperature of the catalyst bed.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: April 8, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Bharat L. Bhatt, John F. Kirner, Pradip Rao, William A. Schwartz
  • Polyalkylene polyamines from alkanolamine and ammonia or amines using group IIIB metal acid phosphate catalysts
    Patent number: 4578517
    Abstract: A process for preparing polyalkylene polyamine compounds is disclosed wherein ammonia or a primary or secondary amine and an alkanolamine compound are reacted in the presence of an effective amount of a Group IIIB metal acid phosphate at a temperature from about 175.degree. to 400.degree. C. under a pressure sufficient to maintain a substantial amount of the ammonia or amine in the reaction zone. The polyalkylene polyamines thus formed are recovered from the reaction mixture.
    Type: Grant
    Filed: September 16, 1983
    Date of Patent: March 25, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Thomas A. Johnson, Michael E. Ford
  • Preparing N-vinylformamide
    Patent number: 4578515
    Abstract: Ethylidene bisformamide is prepared by reacting, at elevated temperatures, dry acetaldehyde and formamide in the presence of an acidic catalyst and an ammonia scavenger such as acetic anhydride. The bisformamide is recovered as a bottoms product of high speed low residence time distillation techniques, e.g., wiped film evaporation. The resulting ethylidene bisformamide may be cracked to N-vinylformamide, which monomer is useful in the preparation of active polymers and copolymers, including poly(vinylformamide) which can be hydrolyzed to poly(vinylamine) salts by contact with acid. These amine salts can then be converted to the free amines, which are precursors of polymeric dyes and pharmaceuticals.
    Type: Grant
    Filed: June 7, 1984
    Date of Patent: March 25, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Daniel J. Dawson, Kenneth M. Otteson
  • Sectioned bubble tray distillation over a wide range of feed composition and bubble tray loading
    Patent number: 4578153
    Abstract: A volatile component over a wide range of concentrations in a multicomponent feed to a distillation column is accommodated at varying feed flow rates without destroying bubble tray efficiency. This is effected by establishing on a bubble tray a plurality of separation zones having discrete and different liquid pressure seals above bubble apertures on the tray. To avoid entrainment, vapor flow restrictors are utilized with bubble apertures in at least one separation zone having less liquid head to offset a tendency of proportionately increased vapor flow through such a bubble aperture during operation of separation zones having a liquid head differential. Intermediate weirs or bubble apertures having different elevations below a liquid level on the tray can be used to establish such separation zones of differing liquid heads.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: March 25, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Charles L. Newton
  • Self-contained exothermic cutting system
    Patent number: 4573665
    Abstract: A self-contained portable exothermic cutting system including an electrode holder, current source, arc initiator and source of oxygen.
    Type: Grant
    Filed: December 3, 1984
    Date of Patent: March 4, 1986
    Assignee: Arcair Company
    Inventors: Robert L. Strohl, Paul E. Moore, Alexander Toth
  • Electrode drive and nozzle system for an automatic air carbon-arc cutting and gouging torch
    Patent number: 4571478
    Abstract: An automatic air carbon-arc cutting and gouging torch having a fixed drive wheel for moving an electrode through an insulated housing and through a nozzle adapted to conduct air in a semi-circular pattern along the electrode. Electrical current is supplied to the electrode through a contact shoe supported by and biased to the electrode by a lever arm, the shoe causing the electrode to frictionally engage the drive wheel. Alternately idler rollers can be used in combination with the contact shoe to position the electrode for movement by the drive wheel. Apparatus is included to reposition the electrode in the event of electrode "stub-out". Also included is a slidable guideblock having a generally U-shaped cross-section to help position electrodes of varying diameter inside the torch.
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: February 18, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventors: David E. Johnson, Larry A. Abersold, Kenneth E. McCall