Patents by Inventor Rolf-Dieter Behling

Rolf-Dieter Behling 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).

  • Multi-stage process for the separation/recovery of gases
    Patent number: 6221131
    Abstract: A process for separating and/or recovering gases from gas and/or gas vapor mixtures includes a membrane separating device to which a gas and/or gas vapor mixture is supplied, the latter being separated in the membrane separating device into a permeate, which is enriched with gas, and a retentate, which is depleted of gas. A first membrane separating device and a downstream second membrane separating device are provided, to which is supplied (at its inlet end) the retentate from the first membrane separating device, the first membrane separating device having a membrane which is selective for higher hydrocarbons in the gas and/or gas vapor mixture to be separated and in that the second membrane separating device has a membrane which is selected for gases of small molecular diameter.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: April 24, 2001
    Assignees: Petroleo Brasiletro S.A.-Petrobras, GKSS Forschungszentrum Geesthacht GmbH
    Inventors: Rolf-Dieter Behling, Klaus-Viktor Peinemann, Klaus Ohlrogge, Jan Wind, Lidia Barreto da Silva
  • Process for the separation/recovery of gases
    Patent number: 6179900
    Abstract: A process for the separation/recovery of gases is described where the desired component to be separated from the gaseous mixture is present in low/very low molar amount and/or low/moderate pressure, the process comprising contacting the gaseous mixture with a separation membrane unit containing high permeability/medium selectivity membranes which separate the feed stream into a permeate stream, enriched in the desired component and at a lower pressure and a retentate stream lean in the desired component and at a higher pressure. The retentate stream is made to convey its pressure to the permeate stream which then is directed to an adsorption PSA unit for further purification of the permeate stream so that the effluent stream from the PSA unit which contains the purified component has a purity of up to 99.90%.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: January 30, 2001
    Assignees: GKSS Forschungszentrum Geesthacht GmbH, Petroleo Brasileiro S.A. - Petrobras
    Inventors: Rolf-Dieter Behling, Klaus-Viktor Peinemann, L{acute over (e)}dia Barreto da Silva
  • Method of introducing hydrogen into aqueous liquids without forming bubbles
    Patent number: 5523003
    Abstract: The invention relates to a method of introducing hydrogen into aqueous liquids without forming bubbles.In this case, the introduction of the gas takes place through a composite membrane with a non-porous coating on the liquid side. Preferred fields of use relate to the charging of hydrogen into biologically or catalytically operating processes for the removal of oxygen, nitrite and/or nitrate from water.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: June 4, 1996
    Assignee: Solvay Unmeltchemie GmbH
    Inventors: Michael Sell, Michael Bischoff, Andreas Mann, Rolf-Dieter Behling, Klaus-Viktor Peinemann, Klemens Kneifel