Patents by Inventor Richard A. Frohreich

Richard A. Frohreich 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).

  • Incomplete drying of activated carbon in a process for VCM reduction in vapors
    Patent number: 4128405
    Abstract: A method for adsorbing VCM from vapors through the use of incompletely dried activated carbon under essentially adiabatic conditions allowing most of the VCM to adsorb on carbon having water previously adsorbed, the heat of adsorption of VCM desorbing the water instead of heating the carbon bed. The VCM adsorption is greater than that found on a dry bed when an adiabatic temperature rise is allowed to occur on the dry bed. A portion of the carbon bed can be kept dry if necessary to reach desired VCM levels. The advantage of the invention resides in adsorbing greater amounts of VCM per pound of carbon used, less drying necessary after regeneration, and less likelihood of high temperature deleterious reactions occurring.
    Type: Grant
    Filed: February 16, 1977
    Date of Patent: December 5, 1978
    Assignee: Continental Oil Company
    Inventors: Richard A. Frohreich, John F. Scamehorn
  • Adiabatic VCM adsorption on carbon
    Patent number: 4098593
    Abstract: A method for improving carbon bed loadings by diluting the vapor feed in order to produce optimum VCM concentrations for the adiabatic adsorption of VCM on dry activated carbon beds. The optimum concentrations are determined for each concentration and temperature of vapor gas.
    Type: Grant
    Filed: February 16, 1977
    Date of Patent: July 4, 1978
    Assignee: Continental Oil Company
    Inventors: Andrew J. Eisenstein, Richard A. Frohreich, John F. Scamehorn