Patents by Inventor Paul Mikitenlo

Paul Mikitenlo 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).

  • Process for the separation of butanes and butenes by extractive distillation
    Patent number: 5242550
    Abstract: For the separation of butanes and butenes by extractive distillation, a charge mainly containing butanes and butenes is contacted in an extractive distillation column under pressure with a polar solvent (e.g., dimethyl formamide), the butanes being collected at the head. The solvent containing the butenes passes into a second column under pressure, where the butenes are partly desorbed and collected at the head. The solvent still containing butenes is purified in a third column under atmospheric pressure and the solvent-containing vapor distillate thereof is returned, after compression, to the lower part of the second column.
    Type: Grant
    Filed: February 26, 1992
    Date of Patent: September 7, 1993
    Assignee: Institut Francais du Petrole
    Inventors: Lionel Asselineau, Paul Mikitenlo