Patents Assigned to Air Products and Chemicals, Inc.
  • Publication number: 20210285719
    Abstract: A heat exchanger apparatus can be configured so that there is at least one “U” or “C” shape configured manifold in combination with at least one “Z” or “S” shape configured manifold for the heat exchanger apparatus for the input and output of fluid into and out of the heat exchangers of the heat exchanger apparatus. In some embodiments, downstream and/or upstream lines can be connected to the manifolds at a center or off-center point for conveying inlet fluid and outlet fluid. A method of retrofitting a pre-existing plant, building a new plant, or designing a new plant that utilizes an embodiment of the heat exchanger apparatus can help provide an improved heat exchanger arrangement without significantly increasing the footprint needed for the arrangement so that a plant can be improved with an embodiment of the apparatus without requiring an enlarged footprint for the plant.
    Type: Application
    Filed: March 13, 2020
    Publication date: September 16, 2021
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Fang Xu, Xukun Luo, Douglas Paul Dee, Donn Michael Herron, William T. Kleinberg
  • Publication number: 20210285721
    Abstract: A method and system for liquefying a natural gas feed stream and removing nitrogen therefrom.
    Type: Application
    Filed: March 13, 2020
    Publication date: September 16, 2021
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Sylvain Vovard, Justin David Bukowski, Fei Chen, Mark Julian Roberts
  • Publication number: 20210231366
    Abstract: Systems and methods are described for increasing capacity and efficiency of a nitrogen refrigerant boil-off gas recovery system for a natural gas storage tank. Boil-off gas is condensed against two-phase nitrogen in a condensing heat exchanger having an inner vessel through which the boil-off gas flows and an outer vessel through which the two phase nitrogen flows. Logic controls maintain storage tank pressure and power consumption within preferred levels by adjusting the pressure of the two-phase nitrogen in the heat exchanger. Additional logic controls maintain the temperature difference between the nitrogen streams entering into and returning from the cold end of a second heat exchanger by controlling the position of an expansion valve on the return circuit.
    Type: Application
    Filed: January 23, 2020
    Publication date: July 29, 2021
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Mark Julian Roberts, Fei Chen
  • Patent number: 11071305
    Abstract: A cryogenic poultry chilling system including a rotatable carousel having a plurality of stations each configured and arranged to receive a poultry carcass suspended from leg hangers, the poultry carcass having an upward facing cavity opening and a downward facing neck opening, a tundish having an outlet port corresponding to each of the stations, and an injector extending downwardly from each of the tundish outlet ports configured and arranged to deliver cryogen into the cavity opening of a carcass in the corresponding station, and a cryogen delivery apparatus configured to deliver substantially liquid cryogen into the tundish.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: July 27, 2021
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Jean-P. Trembley, Nigel Cope
  • Publication number: 20210222881
    Abstract: A combustor for a gas turbine engine having a compressor upstream of the combustor and a turbine downstream of the combustor. The combustor also includes a combustor chamber, an oxy-fuel pilot burner (104) centrally positioned at an end of the combustor chamber, and an air-fuel premix burner configured to at least partially premix air and fuel. The air-fuel premix burner surrounds the oxy-fuel pilot burner (104) in an annular configuration.
    Type: Application
    Filed: May 15, 2019
    Publication date: July 22, 2021
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Mark Daniel D'AGOSTINI, Anup Vasant SANE
  • Patent number: 11060792
    Abstract: A system for melting a pelleted charge material including a furnace having a feed end configured to receive a solid pelleted charge material and a discharge end opposite the feed end configured to discharge a molten charge material and a slag, a conveyor configured to feed the pelleted charge material into the feed end of the furnace, at least one oxy-fuel burner positioned to direct heat into a melting zone near the feed end to heat and at least partially melt the pelleted charge material to form the molten charge material and slag, wherein the oxy-fuel burner uses an oxidant having at least 70% molecular oxygen, and at least one flue for exhausting burner combustion products from the furnace.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: July 13, 2021
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Anup Vasant Sane, Gregory J. Buragino, Anandkumar Makwana, Michael David Buzinski, Xiaoyi He, Mark Daniel D'Agostini
  • Patent number: 11054182
    Abstract: Process and apparatus for the separation of a compressed feed air stream to produce an oxygen product using a distillation column having a lower-pressure column and a higher-pressure column, a higher-pressure heat exchanger and a lower-pressure heat exchanger where the gaseous nitrogen expander receives a nitrogen-enriched fraction from a position intermediate the warmer end and the colder end of the higher-pressure heat exchanger.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: July 6, 2021
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Qiao Zhao, Donn Michael Herron
  • Publication number: 20210190422
    Abstract: Xenon and/or krypton is separated from a liquid oxygen stream comprising oxygen and xenon and/or krypton in a process comprising providing at least a portion of the liquid oxygen stream as a reflux liquid to the top of a rare gas recovery column operated at a pressure of between 5 to 25 bara, vaporizing a reboiler liquid in the reboiling zone in the bottom of the rare gas recovery column to produce a mixture of a rising vapor and a xenon and/or krypton-enriched liquid stream; and contacting the rising vapor with the reflux liquid in at least one distillation zone of the column to effect stripping xenon and/or krypton from the rising vapor to the reflux liquid. The process provides a recovery of xenon of greater than 90% and a krypton recovery of 15% to 90%.
    Type: Application
    Filed: December 18, 2019
    Publication date: June 24, 2021
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Xukun Luo, Alan D. Berger, Donn Michael Herron
  • Publication number: 20210140865
    Abstract: An apparatus for controlling blending of a gas mixture containing known components, including first, second, and third control valves for controlling the flow of first, second, and third components, respectively, a first gas density sensor to measure the density of a first mixture of the first and second components, a second gas density sensor to measure the density of a second mixture of the first mixture and the third component, and a controller to determine based on data from the first and second gas density sensors the relative compositions of the first, second, and third components in the second mixture, and to control the first, second, and third control valves to obtain a desired relative composition of the first, second, and third components in the second mixture.
    Type: Application
    Filed: January 19, 2021
    Publication date: May 13, 2021
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Liang He, Ranajit Ghosh, Donald James Bowe, Reed Jacob Hendershot
  • Publication number: 20210131727
    Abstract: Light gases such as helium are extacted from a carbon dioxide-containing feed stream by distillation. Costly dehydration steps are avoided by pumping the liquid bottoms stream leaving the distillation column without vaporization so as to ensure that any water present in the feed remains in solution with the bulk stream leaving the process. This prevents any liquid phase water causing corrosion or solid ice or hydrates forming to plug the flow.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 6, 2021
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Paul Higginbotham, John Eugene Palamara, Cory E. Sanderson, John H. Petrik
  • Patent number: 10994238
    Abstract: The present invention pertains to a radial flow adsorption vessel comprising a cylindrical outer shell and at least one cylindrical porous wall disposed co-axially inside the shell, wherein inside the shell one or more fluid permeable screens are rigidly connected to the at least one cylindrical porous wall, by a multitude of separate standoff elements so that the screen has a cylindrical shape co-axial to the shell, and to an adsorption process using the radial flow adsorption vessel.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: May 4, 2021
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Micah S. Kiffer, Christopher Michael O'Neill, Stephen Clyde Tentarelli
  • Publication number: 20210122659
    Abstract: A system and method for synchronized oxy-fuel boosting of a regenerative glass melting furnace including first and second sets of regenerative air-fuel burners, a first double-staged oxy-fuel burner mounted in a first wall, and a second double-staged oxy-fuel burner mounted in a second wall, each oxy-fuel burner having a primary oxygen valve to apportion a flow of oxygen between primary oxygen and staged oxygen and a staging mode valve to apportion the flow of staged oxygen between an upper staging port and a lower staging port in the respective burner, and a controller programmed to control the primary oxygen valve and the staging mode valve of each of the first and second oxy-fuel burners to adjust flame characteristics of the first and second oxy-fuel burners depending on the state of operation of the furnace.
    Type: Application
    Filed: October 19, 2020
    Publication date: April 29, 2021
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Mark Daniel D'Agostini, Michael J. Gallagher, William J. Horan
  • Publication number: 20210116125
    Abstract: A method of melting a charge in a double-pass tilt rotary furnace having a door, including operating a first burner at a first firing rate, the first burner being mounted in a lower portion of the door and producing a first flame having a length; operating a second burner at a second firing rate, the second burner being mounted in an upper portion of the door and producing a second flame having a length, the second flame being distal from the charge relative to the first flame; in an initial phase when the solids in the charge impede the first flame, controlling the second firing rate to be greater than the first firing rate; and in an later phase after melting of the solids in the charge sufficiently that the first flame is not impeded, controlling the first firing rate to be greater than the second firing rate.
    Type: Application
    Filed: October 9, 2020
    Publication date: April 22, 2021
    Applicant: Air Products and Chemicals, Inc.
    Inventors: RUSSELL JAMES HEWERTSON, SHAILESH PRADEEP GANGOLI, J. BRUCE KENWORTHY, XIAOYI HE, ANUP VASANT SANE
  • Patent number: 10982898
    Abstract: Described herein are methods and systems for the liquefaction of natural gas to produce a LNG product. The methods and systems use an apparatus for separating a flash gas from a liquefied natural gas (LNG) stream to produce a LNG product and recovering refrigeration from the flash gas. The apparatus includes a shell casing enclosing a heat exchange zone comprising a coil wound heat exchanger, and a separation zone. The heat exchange zone is located above and in fluid communication with the separation zone. Flash gas is separated from the LNG product in the separation zone and flows upwards from the separation zone into the heat exchange zone where refrigeration is recovered from the separated flash gas.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: April 20, 2021
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Fei Chen, Christopher Michael Ott, Annemarie Ott Weist, Mark Julian Roberts
  • Patent number: 10962283
    Abstract: A helium-containing stream is recovered from a natural gas feed using a membrane followed by multiple distillation steps. Refrigeration is provided by expanding a bottoms liquid with a higher nitrogen content than the feed, achieving a lower temperature in the process. The helium-enriched vapor is then purified and the helium-containing waste stream is recycled to maximize recovery and reduce the number of compressors needed. The helium-depleted natural gas stream can be returned at pressure for utilization or transportation.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: March 30, 2021
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Vincent White, Paul Higginbotham, Jason Michael Ploeger
  • Publication number: 20210071861
    Abstract: System and process for producing steam in a steam-hydrocarbon reforming facility where oxygen is removed from demineralized water using a membrane degasifier. The membrane degasifier operates at a lower temperature compared to a deaerator, which is the conventional technology for removing oxygen.
    Type: Application
    Filed: September 11, 2019
    Publication date: March 11, 2021
    Applicant: Air Products and Chemicals, Inc.
    Inventors: ALYSON SAGLE BELDON, EUGENE S. GENKIN
  • Publication number: 20210069632
    Abstract: A carbon dioxide capture system includes a first heat exchanger configured to exchange heat between an exhaust stream and a lean carbon dioxide effluent stream. The carbon dioxide capture system also includes a first turboexpander including a first compressor driven by a first turbine. The first compressor is coupled in flow communication with the first heat exchanger. The first turbine is coupled in flow communication with the first heat exchanger and configured to expand the lean carbon dioxide effluent stream. The carbon dioxide capture system further includes a carbon dioxide membrane unit coupled in flow communication with the first compressor. The carbon dioxide membrane unit is configured to separate the exhaust stream into the lean carbon dioxide effluent stream and a rich carbon dioxide effluent stream. The carbon dioxide membrane unit is further configured to channel the lean carbon dioxide effluent stream to the first heat exchanger.
    Type: Application
    Filed: November 9, 2020
    Publication date: March 11, 2021
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Douglas Carl Hofer, Joseph Philip DiPietro
  • Patent number: 10941361
    Abstract: The present application provides a method for controlling soot make in a process for the gasification of a liquid carbonaceous feedstock. The gasification process comprises: partially oxidizing the carbonaceous feedstock in a gasifier to produce syngas; guiding the syngas from an outlet of the gasifier to a quench section; cooling the syngas in the quench section to provide cooled syngas; providing the cooled syngas to a soot removal unit; using the soot removal unit to remove solids from the cooled syngas, the soot removal unit providing a cleaned syngas stream and a waste slurry stream comprising the solids removed from the syngas; continuously monitoring a concentration of total suspended solids (TSS) in the waste slurry stream; providing the concentration of total suspended solids (TSS) to a control system. The control system continuously optimizes the gasification process to changes in concentration of total suspended solids, carbon-to-ash ratio, and optional additional parameters.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: March 9, 2021
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Mario Guilherme Santos Graca, Bart Van Krimpen, Jose Atilio Quevedo-Enriquez, Thomas Christiaan Van Tergouw, Joachim Ottomar Wolff
  • Patent number: 10935312
    Abstract: A split mixed refrigerant (“MR”) natural gas liquefication system, where low-pressure (“LP”) and medium pressure (“MP”) MR compressors are driven by a first gas turbine and a propane compressor and a high-pressure (“HP”) MR compressor is driven by a second gas turbine, is disclosed. The split MR liquefication system is configured to adjust the characteristics of the HP MR compressor to require less power when less power is available and more power when more power is available compared to the system's design point. Such adjustments allow for shifting the balance of power between the propane compressor and the HP MR compressor to improve LNG production efficiency.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: March 2, 2021
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Christopher Michael Ott, Jonathan James Berg, Annemarie Ott Weist, Joseph Gerard Wehrman
  • Publication number: 20210053009
    Abstract: Pressure swing adsorption process for reducing fluctuations in the flow rate of tail gas from the adsorption unit and reducing fluctuations in the stoichiometric oxidant flow rate required to completely combust the tail gas in a reformer furnace. Constant flow rate and constant fuel property can be obtained by intelligent mixing designs.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 25, 2021
    Applicant: Air Products and Chemicals, Inc.
    Inventors: XIANG-DONG PENG, ELIZABETH M. D'ADDIO, JEFFREY RAYMOND HUFTON, YU ZHANG