Patents by Inventor J. Christopher Kempling

J. Christopher Kempling 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).

  • Removal of toxic and odorous organics from waste water by saturated activated carbon
    Patent number: 4252643
    Abstract: An adsorption process for the selective removal of naphthalenic hydrocarbons in the waste water from a petrochemical operation which comprises contacting the effluent waste water for relatively short periods with activated carbon which has become saturated with respect to non-naphthalenic organics. Contact of the waste water streams with the saturated carbon is continued until the breakthrough of naphthalenic compounds in the waste water exceeds a predetermined concentration, such as 2 ppm. It has been found that efficient removal of naphthalenic compounds can be effected by contacting the waste water for relatively short contact times, for example 10 minutes, notwithstanding the fact that the activated carbon has previously become saturated with respect to non-naphthalenic compounds.
    Type: Grant
    Filed: May 7, 1979
    Date of Patent: February 24, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventors: Eva Knettig, J. Christopher Kempling