Patents by Inventor Gerardus P. Van Der Zwet

Gerardus P. Van Der Zwet 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).

  • Patent number: 5628931
    Abstract: A process for the preparation of a gaseous mixture containing hydrogen and carbon monoxide by autothermal reforming, comprising(i) partial oxidation of a gaseous hydrocarbon feed in a partial oxidation zone,(ii) passing the effluent of the partial oxidation zone to a reforming zone; and(iii) reforming in the presence of a reforming catalyst in the reforming zone to form a reformed product stream, wherein the partial oxidation is carried out at a H.sub.2 C/C molar feed ratio of less than 0.2, and, preferably reformed product stream has a temperature in the range from 1000.degree. to 1350.degree. C., or wherein the reformed product stream has a temperature in the range from 1100.degree. to 1300.degree. C., and, preferably the partial oxidation is carried out at a H.sub.2 O/C molar feed ratio of less than 0.5.
    Type: Grant
    Filed: July 7, 1995
    Date of Patent: May 13, 1997
    Assignee: Shell Oil Company
    Inventors: Peter W. Lednor, Mathijs M. G. Senden, Gerardus P. Van Der Zwet
  • Patent number: 5486313
    Abstract: The present invention provides a process for the preparation of carbon monoxide and/or hydrogen from a hydrocarbon feedstock. The hydrocarbon feedstock is subjected in a first stage to a catalytic partial oxidation process in which it is contacted, as a gaseous mixture comprising the hydrocarbon feedstock and an oxygen-containing gas, which gaseous mixture also comprises nitrogen, with a catalyst comprising as a catalytically active metal rhodium, iridium or platinum. At least a portion of the products of the first stage is subjected in a second stage to a process in which ammonia and/or hydrogen cyanide is removed.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: January 23, 1996
    Assignee: Shell Oil Company
    Inventors: Krijn P. De Jong, Peter W. Lednor, Anna E. M. Oud, Ronald J. Schoonebeek, Koert A. Vonkeman, Gerardus P. Van Der Zwet