Patents by Inventor Martin J. P. C. Nieskens

Martin J. P. C. Nieskens 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 catalytic cracking of a hydrocarbon oil
    Patent number: 5160706
    Abstract: A device for introducing a hydrocarbon into a riser reactor containing a tubular diluent gas conduit having an interior surface and exterior wall surface where the interior wall surface is for passing a diluent gas into the reactor and two or more tubular hydrocarbon supply conduits, longitudinally perforated, arranged within the tubular diluent gas conduit where the longitudinal perforations are adapted to pass the diluent gas from the tubular diluent gas conduit into the tubular hydrocarbon supply conduit.
    Type: Grant
    Filed: June 5, 1991
    Date of Patent: November 3, 1992
    Assignee: Shell Oil Company
    Inventors: Frank H. H. Khouw, Marinus J. Spiessens, Martin J. P. C. Nieskens, Jouke J. Woudstra
  • Process for removing hydrogen sulfide from gases
    Patent number: 4673557
    Abstract: A process for removing H.sub.2 S from gases is described, the process comprising contacting a H.sub.2 S-containing gas with a solid absorbent comprising an intimate mixture of zinc oxide and a zeolite having a pore size larger than 0.40 nm, at a temperature above 300.degree. C. The absorbent is regenerated by passing an oxygen-containing gas over the absorbent at a temperature above 400.degree. C. Suitable compositions for carrying out the process are disclosed.
    Type: Grant
    Filed: March 26, 1985
    Date of Patent: June 16, 1987
    Assignee: Shell Oil Company
    Inventors: Martin J. P. C. Nieskens, Ramalinga Ramamurthy