Patents by Inventor Herrmann Bach

Herrmann Bach 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: 8058498
    Abstract: Process for removing oxygen-containing organic compounds from mixtures of hydrocarbon compounds, in which a liquid phase (1) containing hydrocarbons and oxygenates is charged to a first column (3), a light fraction is separated as top product (5) by distillation, and that a heavier C4+ fraction is removed from the bottom, the light fraction (5) and a gaseous mixture of hydrocarbons and oxygenates (2) is charged to a second column (7), and separated into a light and a heavy hydrocarbon fraction distillation, and an additional solvent (6) is supplied to the upper part of the second column (7), which dissolves the oxygenates and, the solvent and oxygenates being discharged as bottom product (9) and a hydrocarbon product (8), which is free from oxygenates leaves the top of the column (7). The solvent optionally is wholly or partly regenerated and recirculated to the extractive distillation column.
    Type: Grant
    Filed: October 11, 2004
    Date of Patent: November 15, 2011
    Inventors: Sandra Jensen, Martin Rothaemel, Harald Koempel, Herrmann Bach, Gerhard Birke
  • Publication number: 20090223870
    Abstract: Process for removing oxygen-containing organic compounds from mixtures of hydrocarbon compounds, in which a liquid phase (1) containing hydrocarbons and oxygenates is charged to a first column (3), a light fraction is separated as top product (5) by distillation, and that a heavier C4+ fraction is removed from the bottom, the light fraction (5) and a gaseous mixture of hydrocarbons and oxygenates (2) is charged to a second column (7), and separated into a light and a heavy hydrocarbon fraction distillation, and an additional solvent (6) is supplied to the upper part of the second column (7), which dissolves the oxygenates and, the solvent and oxygenates being discharged as bottom product (9) and a hydrocarbon product (8), which is free from oxygenates leaves the top of the column (7). The solvent optionally is wholly or partly regenerated and recirculated to the extractive distillation column.
    Type: Application
    Filed: October 11, 2004
    Publication date: September 10, 2009
    Inventors: Gerhard Birke, Martin Rothaemel, Herrmann Bach, Harald Koempel, Sandra Jensen