Patents by Inventor Frank Roessner

Frank Roessner 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).

  • Patent number: 8558047
    Abstract: A process is provided for the production of hydrocarbons from synthesis gas wherein the synthesis gas is fed to a reactor in which a catalyst acts on the feed at a temperature of between 160° C. and 400° C. and a pressure of between 1 bar and 5 bar. The feed includes a compound containing one or both nitrogen and phosphorus added to the reactor with the synthesis gas. The compound containing nitrogen typically constitutes at least 1 vol % and preferably of the order of 4 to 20 vol % or more of the feed. The carbonaceous gas may be carbon monoxide with a ratio of hydrogen to carbon monoxide in the synthesis gas of from 0.5:1 to 5:1. The catalyst is preferably a supported cobalt catalyst and may be modified with a promoter. The process produces an enhanced proportion of olefins, in the hydrocarbons produced.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: October 15, 2013
    Assignee: University of Cape Town
    Inventors: Michael Christian Maximillian Claeys, Eric Wilhelmus Josephus Van Steen, Frank Roessner, Andreas Karl Rausch
  • Patent number: 8513463
    Abstract: A process is described for the production of one or more of linear nitriles, amides and formamides which includes reacting a nitrogen containing compound, such as ammonia or NOx, and a synthesis gas over a catalyst at a temperature of between 160° C. and 400° C. and a pressure of between 1 bar and 50 bar. A further process for the production of one or more of linear phosphorous containing compounds is also described, which includes reacting a phosphorous containing compound, such as a phosphine, and a synthesis gas over a catalyst at a temperature of between 160° C. and 400° C. and a pressure of between 1 bar and 50 bar. A supported cobalt, iron, ruthenium or rhodium catalyst or an unsupported (bulk) promoted iron catalyst, modified with a promoter is used. The synthesis gas is a mixture of hydrogen and carbon monoxide, in a ratio from 0.5:1 to 5:1; or a mixture of hydrogen and carbon dioxide; or a mixture of water and carbon monoxide.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: August 20, 2013
    Assignees: The University of Cape Town, Carl Von Ossietzky Universitat Oldenburg
    Inventors: Michael Christian Maximilian Claeys, Eric Wilhelmus Josephus Van Steen, Frank Roessner, Tawanda Stephen Sango
  • Publication number: 20130210160
    Abstract: The invention relates to a device and to a method for the detection of hydrogen in a gas mixture, wherein the device comprises a catalyst unit which is connected to a source and a supply device for CO and/or CO2, respectively, or comprises these and wherein the catalyst unit is connected to a flame ionization detector by a feed line, such that the gas mixture, especially containing an inert carrier gas after passing through the catalyst unit is conducted to the FID. The FID is operated with hydrogen as fuel gas.
    Type: Application
    Filed: April 26, 2011
    Publication date: August 15, 2013
    Applicant: Carl Von Ossietzky Universitaet Oldenburg
    Inventors: Frank Roessner, Stefan Schoenen
  • Publication number: 20110160510
    Abstract: A process is provided for the production of hydrocarbons that include olefins from synthesis gas containing at least one of carbon monoxide and or carbon dioxide wherein the synthesis gas is fed to a reactor in which a catalyst acts on the feed at a temperature of between 160° C. and 400° C. and a pressure of between 1 bar and 50 bar. The feed includes a compound containing one or both of nitrogen and phosphorous, such as ammonia and a phosphine, added to the reactor with the synthesis gas. The compound containing nitrogen typically constitutes at least 1 vol % and preferably of the order of 4 to 20 vol % or more of the feed. The carbonaceous gas may be carbon monoxide with a ratio of hydrogen to carbon monoxide in the synthesis gas of from 0.5:1 to 5:1. The catalyst is preferably a supported cobalt catalyst and may be modified with a promoter. The process produces an enhanced proportion of olefins, especially linear olefins, in the hydrocarbons produced.
    Type: Application
    Filed: April 15, 2009
    Publication date: June 30, 2011
    Inventors: Michael Christian Maximillian Claeys, Eric Wilhelmus Josephus Van Steen, Frank Roessner, Andreas Karl Rausch
  • Publication number: 20110092728
    Abstract: A process is described for the production of one or more of linear nitriles, amides and formamides which includes reacting a nitrogen containing compound, such as ammonia or NOx, and a synthesis gas over a catalyst at a temperature of between 160° C. and 400° C. and a pressure of between 1 bar and 50 bar. A further process for the production of one or more of linear phosphorous containing compounds is also described, which includes reacting a phosphorous containing compound, such as a phosphine, and a synthesis gas over a catalyst at a temperature of between 160° C. and 400° C. and a pressure of between 1 bar and 50 bar. A supported cobalt, iron, ruthenium or rhodium catalyst or an unsupported (bulk) promoted iron catalyst, modified with a promoter is used. The synthesis gas is a mixture of hydrogen and carbon monoxide, in a ratio from 0.5:1 to 5:1; or a mixture of hydrogen and carbon dioxide; or a mixture of water and carbon monoxide.
    Type: Application
    Filed: April 15, 2009
    Publication date: April 21, 2011
    Applicants: THE UNIVERSITY OF CAPE TOWN, CARL VON OSSIETZKY UNIVERSITAT OLDENBURG
    Inventors: Michael Christian Maximilian Claeys, Eric Wilhelmus Josephus Van Steen, Frank Roessner, Tawanda Stephen Sango
  • Patent number: 6682673
    Abstract: A process for making a fiber composite involving: (a) providing a natural fiber; (b) providing a matrix material produced by a radical polymerization reaction of: (i) a monomer selected from the group consisting of ring opening products of epoxidized fatty compounds with olefinically unsaturated carboxylic acids, and (ii) a comonomer selected from the group consisting of olefinically unsaturated carboxylic acids; (c) providing a radical initiator; and (d) conducting the radical polymerization reaction of (i) and (ii) in the presence of the natural fiber so that the matrix material envelops the natural fiber, thus producing the fiber composite.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: January 27, 2004
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Michael Skwiercz, Bernhardt Gutsche, Frank Roessner, Doris Elberfeld