Patents Assigned to Linde Aktiengesellschaft
  • Patent number: 10730810
    Abstract: A process for producing an olefin having N carbon atoms is proposed in which using a dehydrogenation a process gas is formed which contains at least the olefin having N carbon atoms, a paraffin having N carbon atoms and a hydrocarbon having N?1 carbon atoms and in which using at least a portion of the process gas a separation input is formed which is subjected to a low temperature separation in which the separation input is cooled stepwise over a plurality of temperature levels and condensates are separated from the separation input, wherein the condensates are at least partly subjected to a first low temperature rectification to obtain a first gas fraction and a first liquid fraction, wherein the first gas fraction contains at least the olefin having N carbon atoms in a lower proportion than in the condensates and the hydrocarbon having N?1 in a higher proportion than in the condensates.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: August 4, 2020
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Andreas Peschel, Andreas Obermeier, Helmut Fritz, Mathieu Zellhuber
  • Patent number: 10730811
    Abstract: A process for producing ethylene is proposed in which an ethane- and oxygen-containing reaction input is formed and a portion of the ethane and of the oxygen in the reaction input is converted into ethylene and into acetic acid by oxidative dehydrogenation to obtain a process gas, wherein the process gas contains the unconverted portion of the ethane and of the oxygen, the ethylene and the acetic acid and also water and wherein the process gas is subjected to a water quench. It is provided that the water quench comprises introducing the process gas into a scrubbing column (10, 20, 30, 40, 50) into which in at least two different column portions respective aqueous, liquid scrubbing medium streams are introduced and run in countercurrent to the process gas. A corresponding plant (100) likewise forms part of the subject matter of the invention.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: August 4, 2020
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Mathieu Zellhuber, Andreas Peschel, Helmut Fritz
  • Patent number: 10724351
    Abstract: Systems and methods of optimizing enhanced oil recovery fluids in the form of a hydrocarbon foam, an emulsion based foam, an emulsion, and a gelled enhanced oil recovery fluid, each comprising Y-Grade NGL, which is an unfractionated hydrocarbon mixture that comprises ethane, propane, butane, isobutane, and pentane plus, wherein the unfractionated hydrocarbon mixture is a byproduct of a condensed and demethanized hydrocarbon stream.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: July 28, 2020
    Assignee: Linde Aktiengesellschaft
    Inventors: John A. Babcock, Charles P. Siess, III, Kevin G. Watts
  • Patent number: 10711945
    Abstract: The invention relates to a transport container (1) for helium (He), comprising an inner container (6) for receiving the helium (He), a coolant container (14) for receiving a cryogenic liquid (N2), an outer container (2) in which the inner container (6) and the coolant container (14) are received, and a thermal shield (21) which can be actively cooled with the aid of the cryogenic liquid (N2), the thermal shield (21) comprising a tubular base section (22) in which the inner container (6) is received, and a cover section (23, 24) that closes the base section (22) at the front and that is arranged between the inner container (6) and the coolant container (14), wherein an intermediate space (20) is provided between the inner container (6) and the coolant.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: July 14, 2020
    Assignee: Linde Aktiengesellschaft
    Inventors: Heinz Posselt, Marko Parkkonen, Hans-Einar Forsberg, Anders Gronlund
  • Patent number: 10695712
    Abstract: A process and an apparatus for regenerating the loaded scrubbing medium in a physical gas scrub in which at least materials of a first type and a second type are scrubbed out of a gas mixture, where predominantly materials of the first type are separated off from scrubbing medium loaded with materials of the first type and the second type by stripping at elevated pressure and a loaded scrubbing medium enriched in materials of the second type and also a gas phase that is made up of the stripping gas used in stripping and the materials separated off from the loaded scrubbing medium are obtained. The loaded scrubbing medium enriched in materials of the second type by means of stripping is depressurized and subsequently fed to a separator in order to obtain a flash gas.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: June 30, 2020
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Ilaria Ciattaglia, Alexander Brandl
  • Patent number: 10690408
    Abstract: A method and device to variably obtain argon by means of low-temperature separation. Feed air is cooled in a main heat exchanger and then conducted into a distillation column system with a high-pressure column and a low-pressure column. Argon is obtained using a crud argon column and a purified argon column. A purified liquid argon product flow is generated from an argon-enriched flow from the low-pressure column. In a first operating mode, a first quantity of purified argon product is discharged, and in a second operating mode, a reduced quantity of purified argon product is discharged. In the second operating mode, a gaseous argon return flow is drawn from the crude argon column or the purified argon column and heated in a separate passage of the main heat exchanger.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: June 23, 2020
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventor: Stefan Lochner
  • Patent number: 10689756
    Abstract: A gas container having coating on the inner side that is applied directly onto a base material (110) of the gas container. The coating has a plurality of layers of at least one coating material that may be produced by an ALD method.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: June 23, 2020
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Peter Adam, Wilhelm Bayerl
  • Patent number: 10674938
    Abstract: There is provided an apparatus for detecting the deteriorating health of a patient receiving gas from a respiratory device. The apparatus comprises a sensor unit configured to monitor a flow rate or pressure of a gas that is flowing in a pipe that connects the respiratory device to a gas delivery device worn by the patient, and a processor configured to measure a respiratory rate of the patient based on variations in the flow rate or pressure of gas in the pipe and to implement a trend analysis of the measured respiratory rate. The processor is configured to generate a warning when it determines that there is an upward trend in the measured respiratory rate and that a magnitude of the trend exceeds a threshold.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: June 9, 2020
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Rigoberto Perez de Alejo Fortun, Mercedes Franco Gay
  • Patent number: 10677525
    Abstract: A method for separating a hydrogen-containing hydrocarbon mixture (C2minus), which in addition to the hydrogen essentially contains hydrocarbons with two carbon atoms and methane, using a distillation column (10). Fluid (a, c, e) of the hydrocarbon mixture (C2minus) is cooled stepwise at a first pressure level, during which time first condensates (b, d) are separated from the fluid (a, c, e). Fluid (e) from the hydrocarbon mixture (C2minus) which remains gaseous after this is fed at the first pressure level into a C2 absorber (7), to which a liquid reflux (r) is added at the top, while a second condensate (f) is drawn off from the sump of the C2 absorber (7) and a gaseous top stream (g) containing predominantly methane and hydrogen is drawn off at the top of the C2 absorber (7).
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: June 9, 2020
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Helmut Fritz, Torben Höfel
  • Patent number: 10677523
    Abstract: A method of cooling a process stream with an auxiliary stream is described, wherein the exchange of heat between the process stream and the auxiliary stream is effected in a first heat exchanger and a second heat exchanger connected downstream thereof.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: June 9, 2020
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Lutz Decker, Andres Kündig
  • Patent number: 10668426
    Abstract: A process for producing an adsorption unit is disclosed, wherein an adsorber bed of the adsorption unit is filled with a bed of an adsorbent which is selected from a multitude of adsorbents by a test method, wherein, in the test method, a particle of each adsorbent is repeatedly laden with a sorbate and regenerated again, which converts the particle to an aged particle, and a fracture property B of the aged particle of each adsorbent is determined, wherein the adsorbent for the bed is selected depending on the fracture property B determined from the multitude of adsorbents.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: June 2, 2020
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Matthias Grahl, Christian Voss, Helko Schneider, Philipp Keil
  • Patent number: 10668553
    Abstract: A method and device for gas metal arc welding, wherein a current-carrying wire electrode is melted by an arc, and wherein gas metal arc welding is performed using a filler metal, which contains at least one constituent that releases deleterious emissions through evaporation, wherein a composition that does not contain this constituent is selected for the wire electrode, and a dead weld metal containing this constituent is fed to the arc and/or a molten bath without a current.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: June 2, 2020
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventor: Erwan Siewert
  • Patent number: 10655293
    Abstract: A method and device for freezing the ground are disclosed, including a freezing lance which extends along a longitudinal axis and has a pipe mantle that encloses an interior space, wherein the ground surrounding the freezing lance can be cooled by the refrigerant present in a first section of the interior space, a line for supplying the liquid refrigerant in the first section of the interior space, wherein the device has a first end section with a first opening for removing an exhaust gas formed by evaporation of the refrigerant from the interior space, wherein the interior space has a second section for holding the exhaust gas, wherein heat is exchangeable between the exhaust gas and the pipe mantle in the second section, so that the exhaust gas can be heated by heat exchange with the ground adjacent to the freezing lance.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: May 19, 2020
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Ralf Schmand, Abraham Sliwo
  • Publication number: 20200147544
    Abstract: A method is provided in which a carbon dioxide containing flue gas is provided by combusting a carbonaceous fuel in a high pressure steam generating unit using combustion air, and in which the carbon dioxide in the flue gas is at least partially captured and compressed in a carbon dioxide capture and compression unit having a carbon dioxide scrubber operated with an absorbing liquid which is regenerated using low pressure steam. The combustion air used in the high pressure steam generating unit is at least partially heated using sensible heat of the flue gas and/or the steam used for regenerating the absorption liquid of the carbon dioxide scrubber is at least partially generated using sensible heat of the flue gas. A corresponding system is also described herein.
    Type: Application
    Filed: November 12, 2019
    Publication date: May 14, 2020
    Applicant: Linde Aktiengesellschaft
    Inventors: Stevan JOVANOVIC, Ramachandran Krish KRISHNAMURTHY
  • Publication number: 20200148542
    Abstract: A method is provided for producing carbon dioxide by combusting a carbonaceous fuel with a oxygen or with a gas mixture containing more than 25 mol % of oxygen obtaining a flue gas mixture, wherein the flue gas mixture is processed obtaining a secondary gas mixture containing carbon dioxide and oxygen, and wherein a part of the oxygen contained in the secondary gas mixture is catalytically reacted with a first auxiliary fuel in a reactor system comprising a series of multiple reactors, obtaining further carbon dioxide and water. A further part of the oxygen contained in the secondary gas mixture is catalytically reacted with a second auxiliary fuel in the reactor system. A corresponding apparatus is also described herein.
    Type: Application
    Filed: November 12, 2019
    Publication date: May 14, 2020
    Applicant: LINDE AKTIENGESELLSCHAFT
    Inventors: Alexander ALEKSEEV, Ramachandran Krish KRISHNAMURTHY, Stevan JOVANOVIC
  • Publication number: 20200138036
    Abstract: The invention relates to a fumigant formulation comprising a mixture of ethyl formate dissolved in supercritical carbon dioxide.
    Type: Application
    Filed: April 13, 2018
    Publication date: May 7, 2020
    Applicant: Linde Aktiengesellschaft
    Inventors: Ernst MIKLOS, Wilhelm BAYERL, Silvia HENKE, Laura GARCIA ALBA, Saskia HUBER
  • Publication number: 20200116427
    Abstract: An overhead recycle process apparatus (100) comprises a heat exchange arrangement (116, 118, 120, 146, 150, 198) and a separator (110) in fluid communication with an absorber (104) and a de-ethaniser (106), the absorber (104) having a reflux inlet port (164). An ethane rectifier (170) in fluid communication with the de-ethaniser (106) is also provided, the de-ethaniser (106) being arranged to provide cooling by heat exchange to an overhead stream path (194) of the ethane rectifier (170). The ethane rectifier (170) comprises a reflux drum (182) having an ethane outlet port (184) and a vapour phase outlet port (185) in fluid communication with the reflux inlet port (164) of the absorber (104).
    Type: Application
    Filed: March 22, 2018
    Publication date: April 16, 2020
    Applicant: LINDE AKTIENGESELLSCHAFT
    Inventors: Heinz BAUER, Lisa KOPPL, Andreas BUB
  • Patent number: 10619795
    Abstract: The present invention provides a monitoring apparatus for an outlet of a vessel storing gas under pressure. The monitoring apparatus comprises a flow control valve movable to a position between a fully open position and a fully closed position to adjust a flow of gas from the outlet of the vessel, a valve position detector connected to the flow control valve to detect the position of the flow control valve, an internal pressure sensor to sense an internal pressure Pint(t) of the gas in the vessel at different times, a processor, a memory and an alarm. The processor calculates an actual rate of change in pressure dPint/dt of the gas in the vessel over time, and compares dPint/dt with an expected rate of change.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: April 14, 2020
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Piers Lambert, Rigoberto Perez De Alejo Fortun, Helmut Franz
  • Patent number: 10622871
    Abstract: A method for manufacturing a rotor for a slip ring motor, including the steps of: a) arranging a plurality of electric cables inside a hollow shaft, wherein the electric cables are distributed over an inner circumference of the hollow shaft, b) filling a resin into an empty space defined between the hollow shaft and the electric cables, c) arranging a rod inside the hollow shaft thereby displacing the resin into an annular gap between the rod and the hollow shaft, wherein the electric cables are arranged in the annular gap, and d) curing of the resin to form the rotor.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: April 14, 2020
    Assignees: Linde Aktiengesellschaft, WEG Equipamentos Electricos S.A.
    Inventors: Heinz Posselt, Marco Kleis, Gustavo Tadeu Omine, Thiago Vegini
  • Patent number: 10612357
    Abstract: A fluid recovery system includes a separator configured to separate a hydrocarbon stream into an unfractionated mixture, water, and natural gas. The system further includes a storage vessel in communication with the separator and configured to store the unfractionated mixture separated from the hydrocarbon stream. The system further includes a compressor in communication with the separator and configured to pressurize the natural gas.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: April 7, 2020
    Assignee: Linde Aktiengesellschaft
    Inventors: John A. Babcock, Charles P. Siess, III