Patents Assigned to Linde Aktiengesellschaft
  • Patent number: 11149907
    Abstract: In a method for operating an adsorption device a laden gas stream is fed to an inlet of a sorption buffer device. In the device the laden gas stream passes through a sorbent for receiving a loading of sorbable substance along a sorption path from the inlet to an outlet. The sorbable substance passes from the gas stream to the sorbent, or vice versa, depending on the loading of the gas stream and the sorbent. During a phase of elevated loading, a region with an elevated loading of the sorbent extends from the inlet along the sorption path. During a phase of reduced loading, the region with the elevated loading of the sorbent is shifted in the direction toward the outlet. Length of the sorption path and quantity of the sorbent in the sorption buffer device are selected for accommodating at least three different regions of elevated loading.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: October 19, 2021
    Assignee: Linde Aktiengesellschaft
    Inventors: Thomas Trott, Horn Christian
  • Patent number: 11153991
    Abstract: A method and apparatus for cooling a load using liquid nitrogen conveyed in a circuit are provided. Cooled liquid nitrogen is used for cooling the liquid nitrogen conveyed in the circuit. A first proportion of the liquid nitrogen is cooled in an open cooling system and a second proportion is cooled in a closed cooling system using one or more cooling units. The open cooling system and closed cooling system are used for cooling of a power supply having a first end and a second end. The open cooling system is arranged at the first end and the closed cooling system is arranged at the second end. Cooling power is provided in a first time period as a first, smaller amount of total cooling power and in a second time period as a second, higher amount of total cooling power. A first proportion of the amount of total cooling power is provided by means of the open cooling system and a second proportion is provided by means of the closed cooling system.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: October 19, 2021
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventor: Alexander Alekseev
  • Patent number: 11149183
    Abstract: Y-grade NGL or L-grade is used as a carrier fluid to transport one or more chemical additives into a hydrocarbon bearing reservoir to treat the hydrocarbon bearing reservoir. The Y-grade NGL or L-grade and the chemical additives may be chilled and/or foamed.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: October 19, 2021
    Assignee: Linde Aktiengesellschaft
    Inventors: John A. Babcock, Charles P. Siess, III, Kevin G. Watts
  • Patent number: 11130722
    Abstract: Proposed is a process for producing ethylene wherein using a dehydrogenation of ethane a process gas containing at least ethane, ethylene and compounds having a lower boiling point than ethane and ethylene is formed, wherein using at least a part of the process gas a separation input is formed and subjected to a low-temperature separation (6) in which the separation input is cooled and in which one or more condensates are separated from the separation input, wherein the condensate(s) are at least partly subjected to a low-temperature rectification to obtain a gaseous first fraction and a liquid second fraction, wherein the gaseous first fraction contains at least the ethane and the ethylene in a lower proportion than in the separation input and the compounds having a lower boiling point than ethane and ethylene in a higher proportion than in the separation input.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: September 28, 2021
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Helmut Fritz, Andreas Obermeier, Andreas Peschel, Tuat Pham Duc, Desislava Tota
  • Patent number: 11125496
    Abstract: The invention relates to a process and device for the cryogenic separation of a methane-containing feed gas predominantly consisting of hydrogen and carbon monoxide, that is partially condensed in this case by cooling, in order to obtain a hydrogen-containing first liquid phase predominantly consisting of carbon monoxide and methane, from which first liquid phase, in an H2 separation column that is heated via a circulation heater, a second liquid phase is generated by separating off hydrogen, from which second liquid phase, in a CO/CH4 separation column, a carbon monoxide-rich gas phase is obtained having a purity that permits release thereof as carbon monoxide product. It is characteristic in this case that a low-methane material stream is withdrawn from the H2 separation column and is then applied to the CO/CH4 separation column as reflux.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: September 21, 2021
    Assignee: Linde Aktiengesellschaft
    Inventor: Martin Lang
  • Publication number: 20210284589
    Abstract: The invention relates to a method (100) for the recovery of a separation product which contains predominantly hydrocarbons with two carbon atoms, with the use of a separation feedstock which contains predominantly methane, hydrogen and hydrocarbons with two carbon atoms, wherein the methane content of the separation feedstock is up to 20%, and the separation feedstock is provided in a gaseous state.
    Type: Application
    Filed: August 14, 2017
    Publication date: September 16, 2021
    Applicant: Linde Aktiengesellschaft
    Inventors: Tuat PHAM DUC, Anne SPINDELNDREHER, Benedikt KURZ
  • Patent number: 11118834
    Abstract: Method and device for generating gaseous compressed nitrogen by the low-temperature separation of air in a distillation column system, having a pre-column, a high-pressure column and a low-pressure column. The feed air is compressed, purified in a purification apparatus and cooled. A first sub-flow of the cooled feed air is introduced in a predominantly liquid state into the distillation column system. A gaseous fraction from the pre-column in introduced into the liquefaction chamber of a pre-column head condenser with liquid formed therein fed as reflux into the pre-column. A first gaseous nitrogen product fraction is drawn from the high-pressure column, heated, and obtained as first gaseous compressed nitrogen product. At least a part of the second sub-flow is introduced into the evaporation chamber of the pre-column head condenser. A third sub-flow of the cooled feed air is expanded to perform work and subsequently introduced into the liquefaction chamber.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: September 14, 2021
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventor: Dimitri Goloubev
  • Patent number: 11105007
    Abstract: A device for the electrochemical production of a product containing CO, and a method for the electrochemical production of a product containing CO, in which a return of a material stream containing the educt and CO is carried out after the electrochemical production.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: August 31, 2021
    Assignees: Siemens Aktiengesellschaft, Linde GMBH
    Inventors: Clara Delhomme-Neudecker, Marc Hanebuth, Andreas Peschel, Günter Schmid, Nicole Schödel, Dan Taroata
  • Patent number: 11104624
    Abstract: A method (100) is proposed for the manufacture of benzene, in which a first feedstock mixture is formed, which contains alkylated aromatics and hydrogen, and in which the alkylated aromatics contained in the first feedstock mixture are partially converted with the hydrogen contained in the first feedstock mixture to the benzene through hydrodealkylation (33), thereby obtaining a first product mixture, wherein the first product mixture contains the benzene, the unconverted alkylated aromatics, alkanes with one to three carbon atoms formed in the conversion of the alkylated aromatics to the benzene, and the unconverted hydrogen, and wherein at least a part of the alkanes with one to three carbon atoms and of the hydrogen are separated from the first product mixture, thereby obtaining a light-gas fraction.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: August 31, 2021
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: David Bruder, Torben Hofel, Benedikt Kurz, Karlheinz Brudi, Matthias Andre, Anne Spindelndreher, Richard Koller, Heinz Zimmermann
  • Patent number: 11098239
    Abstract: Systems and methods for enhanced or improved oil recovery includes injecting a Y-Grade NGL enhanced oil recovery fluid through an injection well into a hydrocarbon bearing reservoir to mobilize and displace hydrocarbons. The Y-Grade NGL enhanced oil recovery fluid comprises an unfractionated hydrocarbon mixture. Simultaneously and/or subsequently, a mobility control fluid is injected into the hydrocarbon bearing formation. Hydrocarbons from the hydrocarbon bearing reservoir are produced through a production well or the same injection well.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: August 24, 2021
    Assignee: Linde Aktiengesellschaft
    Inventors: John A. Babcock, Charles P. Siess, III, Kevin G. Watts
  • Patent number: 11098950
    Abstract: The invention proposes a process and an air separation plant comprising a rectification column system comprising a high-pressure column, a low-pressure column, a main heat exchanger, and a main air compressor. The total air supplied to the rectification column system is compressed in the main air compressor to a first pressure level. The high-pressure column is operated at a second pressure level, at least 3 bar below the first pressure level. A gaseous, nitrogen-rich fluid is removed from the high-pressure column and warmed up in the gaseous state without prior liquefaction. A first partial quantity of the gaseous, nitrogen-rich fluid is warmed to a first temperature level of ?150 to ?100° C., supplied at this first temperature level to a booster and compressed further to a third pressure level. The first partial quantity is then warmed to a second temperature level and discharged from the air separation plant.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: August 24, 2021
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventor: Dimitri Golubev
  • Patent number: 11085164
    Abstract: An apparatus for freezing ground comprises a freezing head extending along a longitudinal axis, and a first conduit for introducing a first cooling medium or a second cooling medium different therefrom into an interior of the freezing head. The first conduit opens into the interior a second conduit introduces the second cooling medium into the interior of the freezing head or draws the first and/or the second cooling medium off from the interior of the freezing head. The second conduit opens into the interior of the freezing head, the apparatus has at least three separate connections, namely a first connection, via which the first cooling medium can be introduced into the interior of the freezing head, a second connection, via which the second cooling medium can be introduced into the interior of the freezing head, and a third connection, via which the first or the second cooling means can be drawn off from the interior of the freezing head.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: August 10, 2021
    Assignee: Linde Aktiengesellschaft
    Inventors: Reiner Schiffbauer, Abraham Sliwo
  • Patent number: 11084116
    Abstract: The invention relates to an ozone supply unit (26) for a flame burner apparatus and/or an oxygen cutting apparatus (10), comprising an oxygen inlet (28) to be supplied with oxygen (18), an ozone generator (32) coupled to the oxygen inlet (28) and configured to convert at least a part of the oxygen (18) supplied to the oxygen inlet (28) into ozone (18a), and an outlet (30) coupled to the ozone generator (32), wherein the outlet (30) provides at least a part of the oxygen (18) supplied to the oxygen inlet (28) and at least a part of the ozone (18a) converted by the ozone generator (32). The ozone supply unit (26) is configured to be integrated into a flame burner apparatus and/or an oxygen cutting apparatus (30). The invention further relates to a method for supplying ozone to a flame burner apparatus and/or an oxygen cutting apparatus (30).
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: August 10, 2021
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Jacob Fieret, Erwan Siewert, Ernst Miklos
  • Patent number: 11077523
    Abstract: The invention relates to a method for producing, in particular generatively producing, and coding a three-dimensional component. Said method comprises the following steps: providing a starting material, supplying a process gas to the starting material, melting the starting material by means of a heat source, and repeating the aforementioned steps. The method according to the invention is characterized in that, at least at a predetermined time interval during the melting of the starting material, a coding component or a coding gas containing a coding component is added to the process gas such that the use of the coding component in the finished object is detectable, and coding information is logged which describes the coding information and the location thereof in the component.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: August 3, 2021
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Jürgen Scholz, Ernst Miklos, Jim Fieret, Pierre Foret
  • Patent number: 11065592
    Abstract: In a process as disclosed according to the present invention, gases or gas mixtures used to form a reactant mixture in an at least temporarily ignitable composition are fed into a mixing chamber (11) through the passages (131) in a boundary wall (13) of the mixing chamber (11) and by means of one or more feed conduits (14) which have feed orifices (141) and extend into the mixing chamber (11), respectively. The present invention likewise provides a corresponding reactor (1).
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: July 20, 2021
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Anton Wellenhofer, Mathieu Zellhuber, Martin Schubert, Robert Birk, Celine Pichler, Helmut Fritz
  • Patent number: 11066346
    Abstract: The invention relates to a method (100, 200) of obtaining one or more olefins, in which, using an oxidative coupling of methane (10), a gas mixture comprising hydrogen, methane, carbon monoxide and higher-boiling hydrocarbons than methane is formed and is subjected to a low-temperature separation (1-5), characterized in that the low-temperature separation (1-5) is conducted using a rectification column (2) having a first separation region (21), a second separation region (22) arranged above the first separation region (21), and a condenser-evaporator (23), wherein the gas mixture is cooled, fed at least partly as first separation feed into the first separation region (21) and subjected to a first rectification in the first separation region (21) to form a first tops gas and a first bottoms liquid, wherein, using a first proportion of the first tops gas in the condenser-evaporator (23), a condensate which is recycled to the first separation region and, using a second proportion of the tops gas, a second separa
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: July 20, 2021
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Helmut Fritz, Christian Ernst, Tobias Sinn
  • Patent number: 11047633
    Abstract: The invention relates to a method for determining the state of a heat exchanger device (10) that comprises means for transferring heat with the aid of at least one process stream. A thermohydraulic simulation of the at least one process stream through at least one passage (14) in the heat exchanger device (10) is carried out in order to determine temperature and/or heat transfer coefficient profiles of the means for transferring heat.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: June 29, 2021
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Manfred Steinbauer, Thomas Hecht, Christiane Kerber, Reinhold Holzl, Axel Lehmacher, Pascal Freko, Ingo Thomas, Alexander Woitalka
  • Patent number: 11040293
    Abstract: The invention relates to a fluid collection device (8), in particular a support collector unit, for collecting fluid flowing through a packing (4) of a material exchange column (1). The fluid collection device (8) includes a support ring (11), a plurality of support profiles (12-16) secured to the support ring (11) for supporting the at least one packing (4), and a plurality of collection channels (19-21) secured to the support ring (11) for collecting the fluid. The collection channels (19-21) are positioned in parallel to the support profiles (12-16) and the support profiles (12-16) are arranged in such a way that they are each arranged in a no-flow area (40, 41) of one of the collection channels (19-21).
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: June 22, 2021
    Assignee: Linde Aktiengesellschaft
    Inventor: Karlmann Kanzler
  • Patent number: 11033875
    Abstract: The invention relates to a packing assembly for a material exchange column, comprising at least one structured packing plate and a container in which the at least one structured packing plate is arranged. The at least one structured packing plate has packing packets. Each packing packet has interconnected packing sheets. The packing sheets are corrugated and have corrugation peaks and corrugation valleys. Adjacent packing sheets contact each other at the corrugation peaks. Additional corrugated packing sheets are added between the packing packets such that the at least one packing plate is pretensioned against the container in a radial direction thereof. Both the corrugated packing sheets of the packing packets as well as the additional corrugated packing sheet added between the packing packets are arranged solely on a common preferred plane or parallel thereto.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: June 15, 2021
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Johann Ferstel, Anton Moll, Rainer Fluggen, Ludwig Bauer, Manh-Hung Nguyen, Rainer Hoffmann, Christian Matten
  • Patent number: 11028316
    Abstract: A hydrocarbon well remediation/stimulation treatment based on an Y-Grade natural gas liquid injection fluid mixture, including prescribed amounts of gas, nanoparticles with wettability alteration properties, foaming agents (including nanoparticles with foam stabilization properties), and solvent additives. The fluid mixture may be tuned to address multiple factors contributing to production decline, such as liquid blockage, wettability properties, fines/debris/scale build-up and organic deposits, reservoir heterogeneity/permeability, and/or reservoir fluid and hydrocarbon compositions, resulting in hydrocarbon production enhancement. The treatment is typically applied with a Huff-n-Puff process, however may also be applied with a flooding process.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: June 8, 2021
    Assignee: Linde Aktiengesellschaft
    Inventors: Naveed Aslam, Kevin G. Watts, Roberta Watts, Carl Peter Ulfson Hagenfeldt