Patents by Inventor Manfred Bölt

Manfred Bölt 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 liquefying a hydrocarbon-rich stream
    Patent number: 6334334
    Abstract: In the liquefaction of a hydrocarbon by indirect heat exchange with the refrigerant mixture of a refrigerant mixture cycle, the refrigerant mixture being compressed in multiple stages, the compressed refrigerant mixture (23) is at least partially condensed (E4) downstream of the penultimate compressor stage and is fractionated (D4) into a higher-boiling liquid fraction (26) and a lower-boiling gas fraction (24). The lower-boiling gas fraction (24) is compressed to the final pressure, partially condensed (E5) and fractionated (D5) into a lower-boiling gas fraction (10) and a higher-boiling liquid fraction (27). The higher-boiling liquid fraction (27) is added to the partially condensed refrigerant mixture stream (23), and the gas fraction (10) forms the lower-boiling refrigerant mixture fraction and the liquid fraction (26) forms the higher boiling refrigerant mixture fraction of the refrigerant mixture cycle.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: January 1, 2002
    Assignee: Linde Aktiengesellschaft
    Inventors: Rudolf Stockmann, Manfred Bölt, Manfred Steinbauer, Christian Pfeiffer, Pentti Paurola, Wolfgang Förg, Arne Olav Fredheim, Oystein Sorensen