Patents by Inventor Niilo Oikarinen

Niilo Oikarinen 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 dimerizing olefins
    Patent number: 8299312
    Abstract: A process for dimerizing olefins in the presence of a catalyst, a hydrocarbon feedstock containing C4 to C6 isoolefins is subjected to dimerization. The process comprises the steps of contacting the C4 to C6 isoolefins at conditions conducive to dimerization with a catalytic material comprising an acidic mesoporous molecular sieve, the catalytic material being thermally stable at a temperature of at least 900° C., and carrying out the contacting step essentially in the absence of butadiene and water in the feedstock. By means of the invention, the dimerization process can be operated over extended periods of time with prolonged maintenance intervals.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: October 30, 2012
    Assignee: Neste Oil Oyj
    Inventors: Niilo Oikarinen, Kari I. Keskinen, Antti Pyhälahti, Veli-Matti Purola
  • PROCESS FOR DIMERIZING OLEFINS
    Publication number: 20070191662
    Abstract: A process for dimerizing olefins in the presence of a catalyst, a hydrocarbon feedstock containing C4 to C6 isoolefins is subjected to dimerization. The process comprises the steps of contacting the C4 to C6 isoolefins at conditions conducive to dimerization with a catalytic material comprising an acidic mesoporous molecular sieve, the catalytic material being thermally stable at a temperature of at least 900° C., and carrying out the contacting step essentially in the absence of butadiene and water in the feedstock. By means of the invention, the dimerization process can be operated over extended periods of time with prolonged maintenance intervals.
    Type: Application
    Filed: October 26, 2006
    Publication date: August 16, 2007
    Applicant: Neste Oil Oyj
    Inventors: Niilo Oikarinen, Kari Keskinen, Antti Pyhalahti, Veli-Matti Purola