Patents Assigned to Air Products and Chemicals, Inc.
  • Patent number: 10415760
    Abstract: Controlling flow of gas in a gas pipeline network, wherein flow of gas within each of the pipeline segments is associated with a direction (positive or negative). Processors calculate minimum and maximum production rates (bounds) at the gas production plant to satisfy an energy consumption constraint over a period of time. The production rate bounds are used to calculate minimum and maximum signed flow rates (bounds) for each pipeline segment. A nonlinear pressure drop relationship is linearized to create a linear pressure drop model for each pipeline segment. A network flow solution is calculated, using the linear pressure drop model, comprising flow rates for each pipeline segment to satisfy demand constraints and pressures for each of a plurality of network nodes over the period of time to satisfy pressure constraints. The network flow solution is associated with control element setpoints used to control one or more control elements.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: September 17, 2019
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Joshua David Isom, Andrew Timothy Stamps, Catherine Catino Latshaw, Ali Esmaili, Camilo Mancilla
  • Patent number: 10408542
    Abstract: The invention relates to a heat exchange device comprising a channel wall defining a flow channel with an inlet for receiving a gas flow. The device further comprises one or more heat exchange surfaces positioned inside the flow channel creating different parallel flow paths for the gas flow through the flow channel, at least one of the heat exchange surfaces embedding one or more flow paths for a fluid heat exchange medium. The one or more deflection elements are positioned inside the flow channel and are attached to the channel wall to deflect the gas flow away from the channel wall.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: September 10, 2019
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Alfons Heitmann, Joachim Papendick, Eckhard Friese, Gerhard Johan Van Elburg, Unai Jauregi, Mohammad Behzad
  • Patent number: 10393373
    Abstract: An oxy-gaseous fuel burner (400, 500) or a solid fuel burner (700) having an annular cavity (404, 504, 704) upstream from and proximate to an outlet plane (416, 516, 716) and a converging (434, 734) or converging-diverging nozzle (537) located upstream from and proximal to the cavity (404, 504, 704). The solid fuel burner (700) also is preferably operated so that the velocity of gas exiting a second annulus (730) is less than the velocity of gas exiting a central conduit (710).
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: August 27, 2019
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Mark Daniel D'Agostini, Anup Vasant Sane, Avishek Guha
  • Patent number: 10393429
    Abstract: A method for controlling the flow of natural gas and refrigerant in the main heat exchanger of a natural gas liquefaction facility. The method provides for the automated control of a flow rate of a natural gas feed stream through a heat exchanger based on one or more process variables and set points. The flow rate of refrigerant streams through the heat exchanger is controlled by different process variables and set points, and is controlled independently of the flow rate of the natural gas feed stream.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: August 27, 2019
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Fei Chen, Brian Keith Johnston, Mark Julian Roberts
  • Publication number: 20190226765
    Abstract: Plate-fin heat exchanger with mitered distributor design for improved fluid flow distribution through the plate-fin heat exchanger resulting in improved heat exchanger efficiency. Sections of the distributor have different fin types that provide improved distribution of the fluid through the heat exchanger. The fin types for the different sections of the distributor are selected based on a friction factor parameter ratio and a j-factor parameter ratio for the different fin types.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 25, 2019
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Fang Xu, Donn Michael Herron
  • Publication number: 20190226638
    Abstract: Fuel gas distribution method where residual fuel gas in a mobile fuel gas storage vessel being transported by a transport vehicle is transferred from the mobile fuel gas storage vessel to the transport vehicle for generating power. The fuel gas may be natural gas or hydrogen. The transport vehicle may be a fuel cell vehicle.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 25, 2019
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Edward Clyde Heydorn, Brian Bernard Bonner
  • Patent number: 10359228
    Abstract: A system and method for liquefaction of a natural gas stream utilizing a plurality of asymmetric parallel pre-cooling circuits. The use of asymmetric parallel cooling circuits allows for greater control over each refrigerant stream during the cooling process and simplifies process control by dedicating heat exchangers to performing similar duties.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: July 23, 2019
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Adam Adrian Brostow, Fei Chen, Mark Julian Roberts, Christopher Michael Ott
  • Publication number: 20190219263
    Abstract: An oxy-fuel burner with monitoring including a fuel passage terminating in a fuel nozzle, a primary oxidant passage terminating in an oxidant nozzle, one or more sensors including a nozzle temperature sensor for sensing at least one of an oxidant nozzle temperature and a fuel nozzle temperature and a position sensor for sensing a burner installation angle, and a data processor programmed to receive data from the sensors and to determine the presence or absence of an abnormal burner condition including a potential partial obstruction of at least one of the primary oxidant passage and the fuel passage based on an increase or decrease in at least one of the oxidant nozzle temperature and the fuel nozzle temperature, and to determine whether the burner is installed at a desired orientation with respect to at least one feature of the furnace based on the burner installation angle.
    Type: Application
    Filed: March 27, 2019
    Publication date: July 18, 2019
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Christopher Michael Albright, Reed Jacob Hendershot, Michael J. Gallagher, Thomas David Matthew Lee, Aleksandar Georgi Slavejkov, Mark Daniel D'Agostini, Tunc Goruney
  • Publication number: 20190218631
    Abstract: A method of operating a BOF bottom stir tuyere having an inner nozzle surrounded by an annular nozzle, including during a hot metal pour phase and a blow phase, flowing an inert gas through both nozzles; during a tap phase, initiating a flow of a first reactant through the inner nozzle and a flow of a second reactant through the annular nozzle, and ceasing the flow of inert gas through the nozzles, wherein the first and second reactants includes fuel and oxidant, respectively, or vice-versa, such that a flame forms as the fuel and oxidant exit the tuyere; during a slag splash phase, continuing the flows of fuel and oxidant to maintain the flame; and after ending the slag splash phase and commencement of another hot metal pour phase, initiating a flow of inert gas through both nozzles and ceasing the flows of the first and second reactants.
    Type: Application
    Filed: January 17, 2018
    Publication date: July 18, 2019
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Gregory J. Buragino, Shailesh Pradeep Gangoli, Anshu Gupta, Anup Vasant Sane, Avishek Guha, Xiaoyi He, Michael David Buzinski, Kyle J. Niemkiewicz, Russell James Hewertson
  • Patent number: 10343139
    Abstract: Disclosed herein are new processes for adsorbing oxygen using adsorbent compositions comprising RHO zeolites kinetically selective for oxygen. The RHO zeolites can be used in pressure swing adsorption processes for separating oxygen from oxygen containing streams, such as for, but not limited to, purifying a crude argon feed stream or separating oxygen from an air feed stream.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: July 9, 2019
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Shubhra Jyoti Bhadra, Roger Dean Whitley, William Jack Casteel, Jr., Timothy Christopher Golden, Garrett Chi-Ho Lau, Erin Marie Sorensen, Robert Quinn, Magdalena M. Lozinska, Paul A. Wright, Mohammad Ali Kalbassi
  • Publication number: 20190201835
    Abstract: Process and apparatus for producing helium, neon, or argon product gas using an adsorption separation unit having minimal dead end volumes. A purification unit receives a stream enriched in helium, neon, or argon, and a stream is recycled from the purification unit back to the adsorption separation unit in a controlled manner to maintain the concentration of the helium, neon, or argon in the feed to the separation unit within a targeted range.
    Type: Application
    Filed: January 18, 2019
    Publication date: July 4, 2019
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Cory E. Sanderson, Jason Michael Ploeger, Jin Cao, Roger Dean Whitley, Shubhra Jyoti Bhadra
  • Patent number: 10337674
    Abstract: Controlling flow of gas in a gas pipeline network, wherein flow within each pipeline segment is associated with a direction (positive or negative). Minimum and maximum signed flow rates are calculated for each pipeline segment constituting lower and upper bounds, respectively, for flow in each pipeline segment. A nonlinear pressure drop relationship is linearized within the lower and upper flow bounds to create a linear pressure drop model for each pipeline segment. A network flow solution is calculated, using the linear pressure drop model, and includes flow rates for each pipeline segment to satisfy demand constraints and pressures for each of a plurality of network nodes to satisfy pressure constraints. Lower and upper bounds on the pressure constraint comprise a minimum delivery pressure and a maximum operating pressure, respectively. The network flow solution is associated with control element setpoints used by a controller to control one or more control elements.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: July 2, 2019
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Camilo Mancilla, Joshua David Isom, Ali Esmaili, Suyash Singh
  • Publication number: 20190193018
    Abstract: Process and apparatus for producing helium, neon, or argon product gas using an adsorption separation unit having minimal dead end volumes. A second separation unit receives a stream enriched in helium, neon, or argon, and a stream is recycled from the second separation unit back to the adsorption separation unit in a controlled manner to maintain the concentration of the helium, neon, or argon in the feed to the separation unit within a targeted range.
    Type: Application
    Filed: December 21, 2017
    Publication date: June 27, 2019
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Cory E. Sanderson, Jason Michael Ploeger, Jin Cao, Donald E. Henry, Edward Landis Weist, JR., Jeffrey Raymond Hufton, Paul Anthony Novosat
  • Publication number: 20190185962
    Abstract: A method of melting an aluminum charge having no more that 4% salt by mass, including during a melting phase, introducing fuel and oxidant via a burner operating at a first firing rate, the fuel and oxidant reacting to form a combustion zone above the aluminum charge, terminating the melting phase and commencing a transition phase when the aluminum charge is nearly completely molten, during the transition phase, reducing the firing rate of the burner to a second firing rate lower than the first firing rate, introducing a non-oxidizing gas at a first velocity to form a non-oxidizing zone between the combustion zone and the aluminum charge, and allowing the aluminum charge to become completely molten, and terminating the transition phase and commencing a tapping phase after the aluminum charge has become completely molten, and during the tapping phase, pouring the molten aluminum charge out of the furnace.
    Type: Application
    Filed: December 18, 2017
    Publication date: June 20, 2019
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Martin Lawrence, Petr Tlamicha
  • Patent number: 10323880
    Abstract: The present invention relates to methods of increasing the operability, capacity, and efficiency of natural gas liquefaction processes, with a focus on mixed refrigerant cycles. The present invention also relates to natural gas liquefaction systems in which the above-mentioned methods can be carried out. More specifically, a refrigerant used in a pre-cooling heat exchanger of a natural gas liquefaction plant is withdrawn from the pre-cooling heat exchanger, separated into liquid and vapor streams in a liquid-vapor separator after being cooled and compressed. The vapor portion is further compressed, cooled, and fully condensed, then returned to the liquid-vapor separator. Optionally, the fully condensed stream may be circulated through a heat exchanger before being returned to the liquid-vapor separator for the purpose of cooling other streams, including the liquid stream from the liquid-vapor separator.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: June 18, 2019
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Mark Julian Roberts, Gowri Krishnamurthy, Adam Adrian Brostow
  • Patent number: 10323798
    Abstract: A system and method for controlling delivery of gas, including a gas pipeline network having at least one gas production plant, at least one gas receipt facility of a customer, a plurality of pipeline segments, and a plurality of control elements, one or more controllers, and one or more processors. The hydraulic feasibility of providing an increased flow rate of the gas to the gas receipt facility of the customer is determined using a linearized pressure drop model. A latent demand of the customer for the gas is estimated using a latent demand model. Based on the hydraulic feasibility and the latent demand, a new gas flow request rate from the customer is received. A network flow solution is calculated based on the new gas flow request rate. The network flow solution is associated with control element setpoints used by a controller to control one or more control elements.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: June 18, 2019
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Ali Esmaili, Catherine Catino Latshaw, Eric J. Guter, Joshua David Isom
  • Patent number: 10308508
    Abstract: Process and apparatus for producing a hydrogen-containing product by steam-hydrocarbon reforming of multiple hydrocarbon feedstocks in a production facility utilizing a prereformer in addition to the primary reformer. The temperature of the reactant mixture introduced into the prereformer is controlled depending on the composition of the reactant mixture fed to the prereformer.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: June 4, 2019
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Simon Craig Saloway
  • Publication number: 20190162469
    Abstract: A system and method for increasing the efficiency of natural gas liquefaction processes by using a hybrid cooling system and method. More specifically, a system and method for converting a transcritical precooling refrigeration process to a subcritical process. In one embodiment, the refrigerant is cooled to sub-critical temperature using an economizer. In another embodiment, the refrigerant is cooled to a sub-critical temperature using an auxiliary heat exchanger. Optionally, the economizer or auxiliary heat exchanger can be bypassed when ambient temperatures are sufficiently low to cool the refrigerant to a sub-critical temperature. In another embodiment, the refrigerant is isentropically expanded.
    Type: Application
    Filed: December 4, 2017
    Publication date: May 30, 2019
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Gowri Krishnamurthy, Mark Julian Roberts
  • Publication number: 20190162468
    Abstract: A system and method for increasing the efficiency of natural gas liquefaction processes by using a hybrid cooling system and method. More specifically, a system and method for converting a transcritical precooling refrigeration process to a subcritical process. In one embodiment, the refrigerant is cooled to sub-critical temperature using an economizer. In another embodiment, the refrigerant is cooled to a sub-critical temperature using an auxiliary heat exchanger. Optionally, the economizer or auxiliary heat exchanger can be bypassed when ambient temperatures are sufficiently low to cool the refrigerant to a sub-critical temperature. In another embodiment, the refrigerant is isentropically expanded.
    Type: Application
    Filed: December 4, 2017
    Publication date: May 30, 2019
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Gowri Krishnamurthy, Mark Julian Roberts
  • Patent number: 10295184
    Abstract: An oxy-fuel burner (10) with monitoring including a fuel passage (320) terminating in a fuel nozzle (322), a primary oxidant passage (330) terminating in an oxidant nozzle (333), one or more sensors including a nozzle temperature sensor (372) for sensing at least one of an oxidant nozzle temperature and a fuel nozzle temperature, and a data processor (66, 166,266) programmed to receive data from the sensors and to determine based on at least a portion of the received data the presence or absence of an abnormal burner condition including a potential partial obstruction of at least one of the primary oxidant passage (330) and the fuel passage (320) based on an increase or decrease in at least one of the oxidant nozzle temperature and the fuel nozzle temperature.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: May 21, 2019
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Christopher Michael Albright, Reed Jacob Hendershot, Michael J. Gallagher, Thomas David Matthew Lee, Aleksandar Georgi Slavejkov, Mark Daniel D'Agostini, Tunc Goruney