Patents by Inventor Akos Tota

Akos Tota has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Combined membrane-pressure swing adsorption method for recovery of helium
    Patent number: 10207928
    Abstract: A method of obtaining helium from a process gas. The process gas is at a pressure less than 15 bar to a first membrane separation stage having a first membrane more readily permeable for helium than for at least one other component in the process gas. A first retentate stream is fed to a second membrane separation stage having a second membrane more readily permeable for helium than for at least one other component in the process gas. Helium is separated from a first helium-containing permeate stream using a pressure swing adsorption to obtain a helium-containing product stream. A second helium-containing permeate stream is recycled to the first membrane separation stage. A purge gas from the pressure swing adsorption is also recycled to the first membrane separation stage.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: February 19, 2019
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Christian Voss, Akos Tota, Martin Bauer, Frank Jennewein
  • Recovery of gases, especially permanent gases, from streams of matter, especially from offgas streams from polymerizations
    Patent number: 10092876
    Abstract: A method of cleaning a stream of matter that includes a C2+ fraction and a first gaseous substance and a second gaseous substance. The stream of matter is subjected to a pressure swing adsorption to remove the C2+ fraction by means of a membrane to obtain a retentate and a permeate. The first substance is enriched in retentate and depleted in permeate and the second substance is depleted in retentate and enriched in permeate.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: October 9, 2018
    Assignee: Linde Aktiengesellschaft
    Inventors: Volker Witzleb, Werner Leitmayr, Christian Voss, Akos Tota, Martin Bauer
  • COMBINED MEMBRANE-PRESSURE SWING ADSORPTION METHOD FOR RECOVERY OF HELIUM
    Publication number: 20170320736
    Abstract: A method of obtaining helium from a process gas. The process gas is at a pressure less than 15 bar to a first membrane separation stage having a first membrane more readily permeable for helium than for at least one other component in the process gas. A first retentate stream is fed to a second membrane separation stage having a second membrane more readily permeable for helium than for at least one other component in the process gas. Helium is separated from a first helium-containing permeate stream using a pressure swing adsorption to obtain a helium-containing product stream. A second helium-containing permeate stream is recycled to the first membrane separation stage. A purge gas from the pressure swing adsorption is also recycled to the first membrane separation stage.
    Type: Application
    Filed: December 7, 2015
    Publication date: November 9, 2017
    Inventors: Christian Voss, Akos Tota, Martin Bauer, Frank Jennewein
  • RECOVERY OF GASES, ESPECIALLY PERMANENT GASES, FROM STREAMS OF MATTER, ESPECIALLY FROM OFFGAS STREAMS FROM POLYMERIZATIONS
    Publication number: 20170209830
    Abstract: A method of cleaning a stream of matter that includes a C2+ fraction and a first gaseous substance and a second gaseous substance. The stream of matter is subjected to a pressure swing adsorption to remove the C2+ fraction by means of a membrane to obtain a retentate and a permeate. The first substance is enriched in retentate and depleted in permeate and the second substance is depleted in retentate and enriched in permeate.
    Type: Application
    Filed: July 23, 2015
    Publication date: July 27, 2017
    Inventors: Volker Witzleb, Werner Leitmayr, Christian Voss, Akos Tota, Martin Bauer
  • DIRECT DIMETHYL ETHER SYNTHESIS FROM SYNTHESIS GAS
    Publication number: 20150018582
    Abstract: The invention concerns processes for preparing dimethyl ether from synthesis gas, comprising a synthesis step, wherein synthesis gas comprising hydrogen and carbon monoxide is converted into dimethyl ether and carbon dioxide, and a separation step, wherein unconverted synthesis gas is separated from carbon dioxide, wherein unconverted synthesis gas is separated from carbon dioxide by a membrane.
    Type: Application
    Filed: January 15, 2013
    Publication date: January 15, 2015
    Applicant: LINDE AKTIENGESELLSCHAFT
    Inventors: Nicole Schodel, Ernst Haidegger, Holger Schmigalle, Christian Thaller, Harald Schmaderer, Akos Tota