Patents by Inventor Petter Lian

Petter Lian 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).

  • Method of conducting catalytic converter multi-phase reaction
    Patent number: 6069179
    Abstract: A method of conducting a continuous multi-phase catalytic reaction such as the conversion of syngas to higher hydrocarbon fuels. Gaseous reactants are introduced via a gas permeable plate into a slurry which includes the product and a finely divided catalyst. The liquid product is separated from the remainder of the slurry by means of a filter unit including a filter member. A pressure differential is established across the filter member by means of a constant level device within the filter unit which maintains a level of filtrate within the filter unit below the level of the slurry. The slurry is maintained in a constant state of agitation by the introduction of the gaseous components as a steam of bubbles. Fluctuations in the pressure differential across the filter member prevent the filter member from clogging, and the gas space is above the filtrate and the slurry are in communication.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: May 30, 2000
    Assignee: Den norske stats oljeselskap AS
    Inventors: Erling Rytter, Petter Lian, Trond Myrstad, Per T. Roterud, Age Solbakken
  • Method of conducting catalytic converter multi-phase reaction
    Patent number: 5422375
    Abstract: A method of conducting a continuous multi-phase catalytic reaction such as the conversion of syngas to higher hydrocarbon fuels. Gaseous reactants are introduced via a gas permeable plate into a slurry which includes the product and a finely divided catalyst. The liquid product is separated from the remainder of the slurry by means of a filter unit including a filter member. A pressure differential is established across the filter member by means of a constant level device within the filter unit which maintains a level of filtrate within the filter unit below the level of the slurry. The slurry is maintained in a constant state of agitation by the introduction of the gaseous components as a steam of bubbles. Fluctuations in the pressure differential across the filter member prevent the filter member from clogging, and the gas space is above the filtrate and the slurry are in communication.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: June 6, 1995
    Assignee: Den Norske Stats Oljeselskap AS
    Inventors: Erling Rytter, Petter Lian, Trond Myrstad, Per T. Roterud, Age Solbakken
  • Catalytic multi-phase reactor
    Patent number: 5407644
    Abstract: A reactor for conducting a continuous multi-phase catalytic reaction such as the conversion of syngas to higher hydrocarbon fuels. Gaseous reactants are introduced via a gas-permeable plate into a slurry which includes the product and a finely divided catalyst. The liquid product is separated from the remainder of the slurry by means of a filter unit including a filter member. A pressure differential is established across the filter member by means of a constant level device within the filter unit which maintains a level of filtrate within the filter unit below the level of the slurry. The slurry is maintained in a constant state of agitation by the introduction of the gaseous components as a steam of bubbles. Fluctuations in the pressure differential across the filter member prevent the filter member from clogging and the gas spaces above the filtrate and the slurry are in communication.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: April 18, 1995
    Assignee: Den Norske Stats Oljesselskap A.S.
    Inventors: Erling Rytter, Petter Lian, Trond Myrstad, Per T. Roterud, Age Solbakken