Patents by Inventor Johannes M. Nanne

Johannes M. Nanne 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 isomerizing hydrocarbons
    Patent number: 5055629
    Abstract: Process for isomerizing hydrocarbons at elevated temperature and pressure in the presence of hydrogen by contacting said hydrocarbons with a catalyst comprising zeolite beta and a hydrogenating-dehydrogenating metal and/or a compound of a hydrogenating-dehydrogenating metal, which zeolite beta has been treated with a solution having a pH of at least 9 and which catalyst has been calcined.
    Type: Grant
    Filed: May 8, 1990
    Date of Patent: October 8, 1991
    Assignee: Shell Oil Company
    Inventors: Jean-Pierre Gilson, Johannes M. Nanne, Gerrit J. den Otter
  • Process for preparation of catalyst
    Patent number: 4637993
    Abstract: Supported cobalt catalysts with specified inhomogeneous cobalt distribution over the catalyst particles (expressed as a ratio (.SIGMA.V.sub.p /.SIGMA.V.sub.c).ltoreq.0.55 are prepared by immersion of a porous carrier into a solution of a cobalt compound in such a way that a given relation between the viscosity (in cS) and Temperature (degrees K.) of the solution and the immersion time (in sec) is met. For each immersion, this relation is (log v/t.times.T).times.10.sup.4 .gtoreq.1.
    Type: Grant
    Filed: September 25, 1985
    Date of Patent: January 20, 1987
    Assignee: Shell Oil Company
    Inventors: Willibrord A. van Erp, Johannes M. Nanne, Martin F. M. Post
  • Process for the preparation of aromatic hydrocarbons using crystalline silicates as catalyst
    Patent number: 4371628
    Abstract: A process for the preparation of crystalline iron silicates with certain critical ratios of components in the starting mixture results in silicates having improved catalytic properties in conversion processes.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: February 1, 1983
    Assignee: Shell Oil Company
    Inventors: Johannes M. Nanne, Martin F. M. Post
  • Process for the preparation of crystalline silicates
    Patent number: 4337176
    Abstract: An improved process for the preparation of certain crystalline iron silicates particularly suitable for converting acyclic oxygen-containing hydrocarbons into aromatic hydrocarbons wherein use of high silicon content compounds together with certain amines results in silicates having unexpected catalytic stability.
    Type: Grant
    Filed: December 4, 1980
    Date of Patent: June 29, 1982
    Assignee: Shell Oil Company
    Inventors: Michael A. M. Boersma, Johannes M. Nanne, Martin F. M. Post
  • Process for the preparation of ferrierite
    Patent number: 4251499
    Abstract: A Process is disclosed for the preparation of zeolite ferrierite of high purity by hydrothermal crystallization from a starting mixture containing at least one compound selected from piperidine and alkyl-substituted piperidines.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: February 17, 1981
    Assignee: Shell Oil Company
    Inventors: Johannes M. Nanne, Martin F. M. Post, Willem H. J. Stork