Patents by Inventor Friedrich H. Puls

Friedrich H. Puls 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).

  • Butene-1 containing feed purification process(CS-165)
    Patent number: 4260840
    Abstract: The invention concerns selectively hydrogenating butadiene to butene in a C.sub.4 fraction containing at least 30 weight % butene-1 by treatment with hydrogen under carefully controlled conditions which comprise in combination use of a supported palladium catalyst containing about 0.01 to about 1.0 weight % palladium, a small excess of hydrogen over theoretical, temperatures in the range of about 50.degree. to 90.degree. C., pressures sufficient to maintain the hydrocarbons in a mixed vapor-liquid phase and a mass velocity of above 1500 lbs./(Sq. ft..times.H).
    Type: Grant
    Filed: January 11, 1980
    Date of Patent: April 7, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventors: Friedrich H. Puls, Klaus D. Ruhnke