Patents by Inventor Yvonne Traa

Yvonne Traa 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).

  • METHOD AND CATALYST FOR THE ALKYLATION OF AROMATIC COMPOUNDS WITH ALKANES
    Publication number: 20140249343
    Abstract: Disclosed is a process for the direct alkylation of aromatic compounds with alkanes. To this end a judicious catalyst combination is provided. The composition comprises palladium as a catalytically active metal, and zinc as a promoter, or a metal such as tin having a comparable promoting action. The metals are contained in a zeolite support, or a similar support of a metal organic framework type or a silico alumino phosphate type.
    Type: Application
    Filed: June 28, 2012
    Publication date: September 4, 2014
    Applicant: UNIVERSITÄT STUTTGART
    Inventors: Yvonne Traa, Daniel Geiss
  • Aromatic saturation and ring opening process
    Patent number: 7513988
    Abstract: Less conventional sources of hydrocarbon feedstocks such as oil sands, tar sands and shale oils are being exploited. These feedstocks generate a larger amount of heavy oil, gas oil, asphaltene products and the like containing multiple fused aromatic ring compounds. These multiple fused aromatic ring compounds can be converted into feed for a hydrocarbon cracker by first hydrogenating at least one ring in the compounds and subjecting the resulting compound to a ring opening and cleavage reaction. The resulting product comprises lower paraffins suitable for feed to a cracker, higher paraffins suitable for example as a gasoline fraction and mono aromatic ring compounds (e.g. BTX) that may be further treated.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: April 7, 2009
    Assignees: Nova Chemicals (International) S.A., Universitat Stuttgart
    Inventors: Michael C. Oballa, Vasily Simanzhenkov, Jens Weitkamp, Roger Gläser, Yvonne Traa, Fehime Demir
  • Aromatic saturation and ring opening process
    Publication number: 20070062848
    Abstract: Less conventional sources of hydrocarbon feedstocks such as oil sands, tar sands and shale oils are being exploited. These feedstocks generate a larger amount of heavy oil, gas oil, asphaltene products and the like containing multiple fused aromatic ring compounds. These multiple fused aromatic ring compounds can be converted into feed for a hydrocarbon cracker by first hydrogenating at least one ring in the compounds and subjecting the resulting compound to a ring opening and cleavage reaction. The resulting product comprises lower paraffins suitable for feed to a cracker, higher paraffins suitable for example as a gasoline fraction and mono aromatic ring compounds (e.g. BTX) that may be further treated.
    Type: Application
    Filed: September 1, 2006
    Publication date: March 22, 2007
    Inventors: Michael Oballa, Vasily Simanzhenkov, Jens Weitkamp, Roger Glaser, Yvonne Traa, Fehime Demir
  • Method for production of n-alkanes from mineral oil fractions and catalyst for carrying out said method
    Patent number: 7067448
    Abstract: The invention relates to a method for the production of n-alkanes from mineral oil fractions and fractions from thermal or catalytic conversion plants, containing cyclic alkanes, alkenes, cyclic alkenes and/or aromatics. The invention further relates to a catalyst for carrying out said method.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: June 27, 2006
    Assignee: Veba Oil Refining and Petrochemicals GmbH
    Inventors: Jens Weitkamp, Hilmar Bischof, Werner Doehler, Juergen Laege, Franz Fuder, Andreas Raichle, Yvonne Traa