Patents by Inventor Wiecher Steenge

Wiecher Steenge 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).

  • Publication number: 20070272592
    Abstract: Process to prepare a base oil having an paraffin content of between 75 and 95 wt % by subjecting a mixture of a Fischer-Tropsch derived feed and a petroleum derived feed to a catalytic pour point reducing treatment.
    Type: Application
    Filed: June 25, 2004
    Publication date: November 29, 2007
    Inventors: Gilbert Germaine, Wiecher Steenge
  • Publication number: 20070181461
    Abstract: Process to prepare simultaneously two or more base oil grades and middle distillates from a mineral crude derived feed, in particular a de-asphalted oil or a vacuum distillate feed or their mixtures, by performing the following steps: (a) hydrocracking the mineral crude derived feed, thereby obtaining an effluent; (b) distillation of the effluent as obtained in step (a) into one or more middle distillates and a full range residue boiling substantially above 340° C., (c) catalytically dewaxing the full range residue by contacting the residue with a dewaxing catalyst comprising a zeolite of the MTW type and a Group VIII metal, thereby obtaining a dewaxed oil; (d) isolating by means of distillation two or more base oil grades from the dewaxed oil obtained in step (c); and (e) isolating a dewaxed gas oil from the dewaxed-oil obtained in step (c); wherein the dewaxed oil as obtained in step (c) comprises between 10 and 40 wt % of a dewaxed heavy gas oil boiling for more than 70 wt % between 370 and 400° C.
    Type: Application
    Filed: March 1, 2005
    Publication date: August 9, 2007
    Inventors: Nicholas Adams, Harmannus Hegge, Laurent Huve, Kevin Polder, Wiecher Steenge