Patents Represented by Attorney E. E. Innis
  • Patent number: 4711645
    Abstract: Reduction in energy consumption is had in a system for adsorptive removal of moisture and CO.sub.2 from atmospheric air by passing the feed air through consecutive beds of adsorbent comprising first alumina then molecular sieve zeolite, at near ambient temperature during adsorption of these impurities and subsequent regeneration of the sorbent laden beds by pressure reduction to about atmospheric level and purge at that level with product gas freed of water and CO.sub.2.
    Type: Grant
    Filed: February 10, 1986
    Date of Patent: December 8, 1987
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Ravi Kumar
  • Patent number: 4684514
    Abstract: An improved method of recovering sulfur from a hydrogen sulfide-containing gas stream which removes water concurrently with the condensation of sulfur and which can be operated at high pressure.
    Type: Grant
    Filed: July 22, 1985
    Date of Patent: August 4, 1987
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Michael S. Chen
  • Patent number: 4681867
    Abstract: A Fischer-Tropsch catalyst and a method of making the catalyst for a Fischer-Tropsch process utilizing the catalyst by which synthesis gas, particularly carbon-monoxide rich synthesis gas, is selectively converted to higher hydrocarbons of relatively narrow carbon number range is disclosed. In general, the selective and notably stable catalyst, consist of an inert carrier first treated with a Group IV B metal compound (such as zirconium or titanium), preferably an alkoxide compound, and subsequently treated with an organic compound of a Fischer-Tropsch metal catalyst, such as cobalt, iron or ruthenium carbonyl. Reactions with air and water and calcination are specifically avoided in the catalyst preparation procedure.
    Type: Grant
    Filed: May 13, 1986
    Date of Patent: July 21, 1987
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Paul N. Dyer, Ronald Pierantozzi, Howard P. Withers
  • Patent number: 4677827
    Abstract: A process is described for the recovery of net power during the depressurization of natural gas from high pressure pipeline conditions to low pressure end user conditions wherein the natural gas is rewarmed to a relatively warm temperature greater than 35.degree. F. using renewable energy and ambient atmosphere.
    Type: Grant
    Filed: February 22, 1985
    Date of Patent: July 7, 1987
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Thirthahalli A. Shenoy, John C. Tao
  • Patent number: 4675037
    Abstract: A portion of the boiloff from LNG storage container is revaporized and recycled during reliquefaction process to control the concentration of nitrogen and to provide upper limit temperature control.
    Type: Grant
    Filed: February 18, 1986
    Date of Patent: June 23, 1987
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Charles L. Newton
  • Patent number: 4507429
    Abstract: A pressure sensitive adhesive composition comprising a polymer of an acrylate ester and/or vinyl ester, an olefinically unsaturated carboxylic acid comonomer, and a polyolefinically unsaturated copolymerizable monomer for enhancing cohesive strength of the interpolymer, the polymer being formed by an aqueous emulsion polymerization process in the presence of a stabilizer system comprising a hydroxypropyl methyl cellulose and an ethoxylated acetylenic tertiary diol.
    Type: Grant
    Filed: January 12, 1984
    Date of Patent: March 26, 1985
    Assignee: Air Products and Chemicals, Inc.
    Inventor: William E. Lenney
  • Patent number: 4482690
    Abstract: This invention pertains to the manufacture of polyurethane-urea elastomers formed by reacting a prepolymer of an organic polyisocyanate and a compound having at least two Zerewitenoff active hydrogen atoms with a chain extender comprising t-butylbenzenediamine. The utilization of t-butylbenzenediamine as an aromatic diamine chain extender imparts flexibility in the handling of reactable compositions due to an increase in pot life and imparts excellent tensile modulus to the resulting polymer.
    Type: Grant
    Filed: February 9, 1984
    Date of Patent: November 13, 1984
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Gus G. Orphanides
  • Patent number: 4449978
    Abstract: A nonwoven product formed from a nonwoven web of fibers bonded together with a binder comprising an interpolymer of vinyl acetate/ethylene/N-methylol acrylamide/acrylamide, the interpolymer comprising about 5 to 40 wt % ethylene and an amount of N-methylol acrylamide and acrylamide which is about 3.0 to 10 wt % of the interpolymer, the N-methylol acrylamide being about 1.75 to 3.5 wt % and the acrylamide about 1.25 to 8.25 wt %. Such nonwoven products have a low residual free formaldehyde content and good tensile properties.
    Type: Grant
    Filed: April 1, 1983
    Date of Patent: May 22, 1984
    Assignee: Air Products and Chemicals, Inc.
    Inventor: John G. Iacoviello
  • Patent number: 4446320
    Abstract: Certain hydrogen phosphate and pyrophosphate compositions are employed as catalysts for organic condensation reactions. Specifically, a diglycolamine compound is converted to a morpholine compound in the presence of such a catalyst.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: May 1, 1984
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Victoria Eskinazi, James E. Wells
  • Patent number: 4421530
    Abstract: An adiabatic-isothermal swing absorption process is disclosed for the removal of essentially all oxygen contained in an inert gas stream. The oxygen is absorbed from an inert gas stream adiabatically on to a dioxygen absorbent and then desorbed from the absorbent isothermally by the use of external heat. The process method utilizes at least two switching beds of the dioxygen absorbent in which one bed is in an absorbing mode while the other bed is in a desorbing mode.
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: December 20, 1983
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Augustine I. Dalton, Jr., John J. Sheridan, III, David A. Zagnoli
  • Patent number: 4421531
    Abstract: An adiabatic pressure swing absorption process is disclosed for the removal of essentially all oxygen contained in an inert gas stream in minor amounts. The oxygen is absorbed and desorbed adiabatically from a dioxygen sorbent. Optionally, an inert purge gas can be utilized to improve the desorption of oxygen from the dioxygen sorbent. The process utilizes at least two switching beds of the dioxygen sorbent in which one bed is in an absorbing mode while the other bed is in a desorbing mode.
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: December 20, 1983
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Augustine I. Dalton, Jr., John J. Sheridan, III, David A. Zagnoli
  • Patent number: 4420591
    Abstract: This invention relates to an improvement for reducing the amount of wall fouling in the suspension polymerization of vinyl chloride. The improvement resides in wetting the reactor surface with a solution containing selenous acid prior to charging the vinyl chloride recipe to the reactor. Preferably, the surface of the resulting reactor is heated at a temperature of from 40.degree.-100.degree. C. prior to charging the recipe.
    Type: Grant
    Filed: April 5, 1982
    Date of Patent: December 13, 1983
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Lawrence K. Wempe, Bernard D. Bauman
  • Patent number: 4417449
    Abstract: A process is described for the separation of carbon dioxide and sulfide gases from oil shale retorting off-gases, coal gasification off-gases, oxygen fireflooding off-gases or carbon dioxide miscible flood enhanced oil recovery off-gases for recycle to a retort, gasifier, petroleum reservoir or to further sulfide processing prior to export. The process separates the off-gases into an essentially sulfur-free light BTU fuel gas, a heavy hydrocarbon stream and a carbon dioxide acid gas stream wherein the off-gas is compressed if necessary and cooled to separate the various streams. The carbon dioxide acid gas stream is expanded in an auto-refrigeration step to provide the necessary process refrigeration. In the oil shale retort and coal gasification applications the sulfur constituents are sorbed on spent oil shale particles or coal ash.
    Type: Grant
    Filed: January 15, 1982
    Date of Patent: November 29, 1983
    Assignee: Air Products and Chemicals, Inc.
    Inventors: William P. Hegarty, William P. Schmidt
  • Patent number: 4417855
    Abstract: A high speed turbo disc mounting assembly for the reduction of turbo disc failure and the provision for disc migration radially at high speeds comprising a shaft, a bushing mounted on said shaft having an annular flange through which torque pin apertures are provided, and a turbo disc mounted on said bushing such that torque pins aligned in channels at the interface of the disc and bushing provide for rotational engagement of the disc to the bushing without restricting outward migration of the disc or imparting undue stress concentrations to the high dynamic stress level area of said disc.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: November 29, 1983
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Robert E. Jepsen
  • Patent number: 4409064
    Abstract: This invention relates to an improved process for reducing solute in a vapor stream and, particularly, to the adaption of this process in concentrating solutions in an evaporator wherein the solution is heated to volatilize solvent. The improvement for reducing solute in the vapor stream resides in (a) the utilization of a wire mesh mist eliminator pad having a wire diameter of from 0.001-0.05 inches, an interfacial area from 50-200 ft.sup.2 /ft.sup.3, a void space of about 90-99 percent and a packing thickness of 4-16 inches and (b) spraying a liquid through the mist eliminator pad, the liquid being sprayed uniformly over the surface of the mist eliminator pad at a rate of 0.6-2.5 pounds liquid per pound of vapor to provide a wetting rate of 0.1-0.25 gallons per minute per square foot of mist eliminator surface area. The process has been particularly advantageous in the multistage concentration of corrosive products particularly in the concentration of a 60-70% sulfuric acid solution to about 93 percent.
    Type: Grant
    Filed: November 9, 1981
    Date of Patent: October 11, 1983
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Suresh M. Vora, William J. Mazzafro, Pierre L. T. Brian, Michael S. K. Chen
  • Patent number: 4400188
    Abstract: A process is described in which gaseous nitrogen is recovered from air in a cryogenic air separation unit containing a single distillation column wherein the product nitrogen is compressed and a portion of the compressed nitrogen is recycled to the column to provide reboil in the bottom of said column and reflux at the top of said column. A waste crude oxygen stream is expanded to provide refrigeration for the air separation unit.
    Type: Grant
    Filed: October 27, 1981
    Date of Patent: August 23, 1983
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Suresh U. Patel, Thomas E. Cormier, Keith B. Wilson
  • Patent number: 4382366
    Abstract: The present invention is directed to an air separation system for the recovery of pressurized, substantially pure oxygen gas. The system uses a single pressure distillation column and burns a nitrogen-oxygen waste stream to provide power for the air compressor, the oxygen product compressor and electric generation. The distillation column has a split feed to develop reflux and reboil and to provide initial separation of the liquid and vapor components of the column.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: May 10, 1983
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Lee S. Gaumer
  • Patent number: 4360505
    Abstract: This invention relates to an improved adiabatic process for separating hydrogen from mixed gas streams using hydridable materials as the absorbing medium. The improvement comprises utilizing a composite comprising a thermal ballast in admixture with the hydride material to absorb the heat of reaction and to aid in desorption. By virtue of the intimate contact of the ballast with the hydridable material rapid cycle times plus good bed utilization are achieved.
    Type: Grant
    Filed: July 2, 1981
    Date of Patent: November 23, 1982
    Assignee: Air Products and Chemicals, Inc.
    Inventors: John J. Sheridan, III, Fred G. Eisenberg, Gary D. Sandrock, Ernest L. Huston, Edwin Snape, Raymond P. Stickles, Gordon C. Cheng
  • Patent number: 4156598
    Abstract: This invention relates to an improvement in a process for purifying nitrogen trifluoride atmospheres generally contaminated with nitrous oxide, water, and dinitrogen difluoride. The improvement for extending adsorber life resides in reducing the dinitrogen difluoride content in the atmosphere to less than 0.03% by volume prior to passing the atmosphere through the adsorber.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: May 29, 1979
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Andrew J. Woytek, John T. Lileck