Patents by Inventor Ivar Martin Dahl

Ivar Martin Dahl 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: 8672671
    Abstract: The present invention comprises a method and reactor of chemical looping combustion involving at least two gases in a reactor in which: said at least two gases are conveyed to a reactor fluid inlet center which is divided in at least two sectors; said at least two gases flow radially outward into an oxygen carrier bed that surrounds said fluid inlet center, said oxygen carrier bed comprising an active material, in which at least one reaction takes place between said active material and said at least two gases; effluents from said at least one reaction are conveyed to an outer compartment of the reactor, said compartment being divided in two sections by means of two radially extending partition walls, said fluid inlet center, said oxygen carrier bed and said outer compartment are rotating relative to each other.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: March 18, 2014
    Assignee: Sinvent AS
    Inventors: Ivar Martin Dahl, Richard Blom
  • Publication number: 20100092898
    Abstract: The present invention comprises a method and reactor of chemical looping combustion involving at least two gases in a reactor in which: said at least two gases are conveyed to a reactor fluid inlet centre which is divided in at least two sectors; said at least two gases flow radially outward into an oxygen carrier bed that surrounds said fluid inlet center, said oxygen carrier bed comprising an active material, in which at least one reaction takes place between said active material and said at least two gases; effluents from said at least one reaction are conveyed to an outer compartment of the reactor, said compartment being divided in two sections by means of two radially extending partition walls, said fluid inlet centre, said oxygen carrier bed and said outer compartment are rotating relative to each other.
    Type: Application
    Filed: October 11, 2007
    Publication date: April 15, 2010
    Applicant: SINVENT AS
    Inventors: Ivar Martin Dahl, Richard Blom
  • Patent number: 7341706
    Abstract: The invention concerns a simple and cheap method for production of microporous crystalline metalloaluminiumphosphates (ELAPO) for use as adsorbent or catalyst by wholly or partially filling the pores of particles containing aluminum phosphate (AIPO) with an aqueous mixture containing an active source of metal and an organic structure directing agent and perform crystallization at elevated temperature under autogenous pressure to form crystals of ELAPO.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: March 11, 2008
    Assignee: Polymers Holding AS
    Inventors: Terje Fuglerud, Arne Gidløv Grønvold, Eddy Walther Hansen, Ivar Martin Dahl, Åse Slagtern, Rune Wendelbo
  • Patent number: 7341707
    Abstract: The invention concerns a method for production of microporous crystalline metalloaluminium phosphates (ELAPO) based adsorbents or catalysts by in-situ crystallisation of ELAPO inside a formed body. First the formed body containing aluminium phosphate (AIPO) and binder is prepared, thereafter the organic structure directing agent, EL source and water are added and finally ELAPO is crystallised in-situ at elevated temperature and pressure, while keeping the shape and size of the formed body.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: March 11, 2008
    Assignee: Polymers Holding AS
    Inventors: Terje Fuglerud, Arne Gidløv Grønvold, Rune Wendelbo, Åse Slagtern, Ivar Martin Dahl
  • Patent number: 6995219
    Abstract: The invention relates to a process for the preparation of a multimodal A-olefin polymer comprising polymerizing in a polymerization stage at least one A-olefin in the presence of a multisite catalyst and an adjuvant so as to produce a polymer having a relatively lower molecular weight component and a relatively higher molecular weight component, said adjuvant being selected from the group consisting of phosphines, phosphites, acetylenes, dienes, thiophenes and aluminium alkyls and said adjuvant being capable of altering the ratio of the fraction of higher molecular weight component to the fraction of the lower molecular weight component by at least 10%.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: February 7, 2006
    Assignee: Borealis Technology Oy
    Inventors: Arild Follestad, Richard Blom, Ivar Martin Dahl, Erling Rytter
  • Patent number: 6982238
    Abstract: The invention provides a supported chromium catalyst system comprising a chromium catalyst precursor bound via at least one heteroatom to a functionalised support, said heteroatom being connected to said support via an organic group.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: January 3, 2006
    Assignee: Borealis Technology Oy
    Inventors: Klaus Joachim Jens, Arild Follestad, Siw Bodil Fredriksen, Richard Blom, Ivar Martin Dahl
  • Patent number: 6887818
    Abstract: A supported titanium catalyst system comprising a titanium catalyst bound via at least one heteroatom, a functionalized support, said heteroatom being connected to said support via an organic group.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: May 3, 2005
    Assignee: Borealis Technology Oy
    Inventors: Klaus Jens, Arild Follestad, Siw Bodil Fredriksen, Richard Blom, Ivar Martin Dahl
  • Publication number: 20040236043
    Abstract: The invention relates to a process for the preparation of a multimodal A-olefin polymer comprising polymerising in a polymerisation stage at least one A-olefin in the presence of a multisite catalyst and an adjuvant so as to produce a polymer having a relatively lower molecular weight component and a relatively higher molecular weight component, said adjuvant being selected from the group consisting of phosphines, phosphites, acetylenes, dienes, thiophenes and aluminium alkyls and said adjuvant being capable of altering the ratio of the fraction of higher molecular weight component to the fraction of the lower molecular weight component by at least 10%.
    Type: Application
    Filed: May 13, 2004
    Publication date: November 25, 2004
    Inventors: Arild Follestad, Richard Blom, Ivar Martin Dahl, Erling Rytter
  • Patent number: 6821486
    Abstract: The invention relates to a multi-autoclave and details of its design, a method for automated synthesis of zeolites in the multi-autoclave, and furthermore, to applications of the multi-autoclave for an automated synthesis which is optimized simultaneously with regard to several synthesis parameters in the synthesis of zeolites. The multi-autoclave consists typically of a pressure vessel/autoclave having from 10 to 10,000 small, separated chambers lined with an inert material, with each chamber typically having a volume of 0.2-2 ml. The chambers preferably are formed as through-going perforations in a central block and the perforations are sealed by balls, septa, stoppers or such which are placed at the bottom and top of each through-going perforation. Metal plates are placed over and under the central block so that a closing mechanism is pressed against the edges of the perforations with sufficient load to enable the chambers to be filled with aqueous mixtures and to be heated to 200° C.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: November 23, 2004
    Assignee: Sinvent AS
    Inventors: Duncan Akporiaye, Ivar Martin Dahl, Arne Karlsson, Rune Wendelbo
  • Patent number: 6794326
    Abstract: A catalyst system for the polymerization of ethylene, comprising a particulate inorganic oxide supporting a chromium oxide being in a reduced oxidation state and a metallocene compound having the formula Cp2ZrR′R″, wherein each Cp, being equal or different, is an unsubstituted or substituted cyclopentadienyl compound, and R′ and R′, independent of each other, are selected from the group comprising alkyls having 1 to 6 carbon atoms, unsubstituted or substituted benzyl, and phenoxy substituted with alkyls having 1 to 6 carbon atoms; or R′ or R″ may be a halide.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: September 21, 2004
    Assignee: Borealis Technology Oy
    Inventors: Arild Follestad, Klaus-Joachim Jens, Richard Blom, Ivar Martin Dahl
  • Patent number: 6688180
    Abstract: A multi-test assembly for evaluating, detecting and monitoring processes at elevated pressure is described. The Mufti-test assembly has a pressure vessel equipped with trays or plates with a multitude of individual test cells, an optional lid for sealing the cells, and a system for the detection and/or monitoring of the processes in each individual test cell, in situ. Uses of the invention are detection of solid structure formation or phase transformation in, for example, hydrocarbon systems or mixtures of hydrocarbon and water, and also in an automated test which is optimized simultaneously with regard to several test parameters in the testing of inhibitors for gas hydrate formation. The multi-test assembly has built-in systems for pressure and temperature control. The assembly may also be connected to a set-up for the automatic dosing of reagents.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: February 10, 2004
    Assignee: Sinvent AS
    Inventors: Are Lund, Duncan E. Akporiaye, Davoud Tayebi, Rune Wendelbo, Kai W. Hjarbo, Arne Karlsson, Ivar Martin Dahl
  • Publication number: 20040014912
    Abstract: A supported titanium catalyst system comprising a titanium catalyst bound via at least one heteroatom, a function-alised support, said heteroatom being connected to said support via an organic group.
    Type: Application
    Filed: April 18, 2003
    Publication date: January 22, 2004
    Inventors: Klaus Jens, Arild Follestad, Siw Bodil Fredriksen, Richard Blom, Ivar Martin Dahl
  • Publication number: 20030166460
    Abstract: The invention provides a supported chromium catalyst system comprising a chromium catalyst precursor bound via at least one heteroatom to a functionalised support, said heteroatom being connected to said support via an organic group.
    Type: Application
    Filed: April 18, 2003
    Publication date: September 4, 2003
    Inventors: Klaus Joachim Jens, Arild Follestad, Siw Bodil Fredriksen, Richard Blom, Ivar Martin Dahl
  • Patent number: 6610799
    Abstract: A process for olefin polymerization in a reaction vessel, said process comprising polymerizing at least one &agr;-olefin in a polymerization stage employing a catalyst feed comprising 1) a first catalyst composition having at least two active catalytic sites capable of producing a first set of polymer components; 2) a second catalyst composition having at least two active catalytic sites capable of giving essentially the same set of polymer components as produced by the catalyst in feed (1) under the same polymerization conditions but these components in a different ratio to those produced by the catalyst composition of feed (1); wherein the amounts of catalyst compositions (1 and 2) fed into the reaction vessel are independently controlled.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: August 26, 2003
    Assignee: Borealis Technology Oy
    Inventors: Arild Follestad, Vidar Almqvist, Ketil Strand Andersen, Richard Blom, Ivar Martin Dahl, Arild Geir Andersen
  • Patent number: 6242543
    Abstract: A process for the polymerization of ethylene and optionally &agr;-olefins to form ethylene homopolymer or copolymers having a broad molecular weight distribution, comprising polymerization of 100-80 wt. % of ethylene and 0-20 wt. % of comonomer in the presence of two independent, simultaneously present catalysts A and B, wherein catalyst A, deposited on an inorganic support, comprises chromium in a predominantly oxidant state of 2 and catalyst B comprises a bis-cyclopentadienyl chromium compound reacted with an inorganic support.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: June 5, 2001
    Assignee: Borealis A/S
    Inventors: Arild Follestad, Richard Blom, Ivar Martin Dahl, Klaus-Joachim Jens, Svein Staal Eggen