Patents by Inventor Gisbert Semmerau

Gisbert Semmerau 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).

  • Device for carrying out gas/solid reactions
    Patent number: 4722768
    Abstract: Untreated coal is activated with steam at temperatures of 600.degree. to 950.degree. C. in a vibrating fluid bed, which is directly heated. The untreated coal is pre-dried by counter-current passage of the waste gases from the reaction either during feeding of the untreated coal or in the first part of the vibrating fluid bed trough. During the activation, secondary air can be passed in through a sparge pipe which is arranged parallel to the vibrating fluid bed trough. It is possible to carry out the heating exclusively with the supply of secondary air.
    Type: Grant
    Filed: April 22, 1986
    Date of Patent: February 2, 1988
    Assignee: Degussa Aktiengesellschaft
    Inventors: Ruediger Schirrmacher, Gisbert Semmerau
  • Method and device for carrying out gas/solid reactions particularly the activation and re-activation of activated carbon
    Patent number: 4615993
    Abstract: Untreated coal is activated with steam at temperatures of 600.degree. to 950.degree. C. in a vibrating fluid bed, which is directly heated. The untreated coal is pre-dried by counter-current passage of the waste gases from the reaction either during feeding of the untreated coal or in the first part of the vibrating fluid bed trough. During the activation, secondary air can be passed in through a sparge pipe which is arranged parallel to the vibrating fluid bed trough. It is possible to carry out the heating exclusively with the supply of secondary air.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: October 7, 1986
    Assignee: Degussa Aktiengesellschaft
    Inventors: Rudiger Schirrmacher, Gisbert Semmerau