Patents by Inventor Herman H. Woebcke

Herman H. Woebcke 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).

  • Process for the production of aromatics benzene, toluene, xylene (BTX) from heavy hydrocarbons
    Patent number: 4765883
    Abstract: A process for producing improved yields of aromatics (benzene, toluene, xylene) by initially partially thermally cracking heavy hydrocarbon and thermally cracking ethane to high conversion and then completely cracking the partially cracked heavy hydrocarbon with the completely cracked ethane.
    Type: Grant
    Filed: October 20, 1982
    Date of Patent: August 23, 1988
    Assignee: Stone & Webster Engineering Corporation
    Inventors: Axel R. Johnson, S. Narayanan, Herman H. Woebcke
  • Integrated heavy oil pyrolysis process
    Patent number: 4732740
    Abstract: An apparatus for the cracking of a heavy hydrocarbon feedstock comprising a pre-pyrolysis cracker for treating the feedstock at elevated temperatures and pressures; a primary separator for separating the effluent from the pre-pyrolysis cracker into a heavy fuel oil fraction and a treated heavy hydrocarbon fraction; a pyrolysis furnace having a convection section for preheating and two radiant sections for partially cracking the treated heavy hydrocarbon and cracking a light hydrocarbon feedstock, a DUOCRACKER for completely cracking the heavy fraction while quenching the light fraction and a quencher for quenching the composite stream from the DUOCRACKER.
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: March 22, 1988
    Assignee: Stone & Webster Engineering Corporation
    Inventors: Herman H. Woebcke, Swami Narayanan, Axel R. Johnson