Borealis Technology Oy

Uop Lcc

Sinvent As

Borealis A/s

Richard Blom

Ivar Martin Dahl

Arild Follestad

Ib-Rune Johansen

Arne Karlsson

Duncan E Akporiaye

Dag Thorstein Wang

Rune Wendelbo

Morten Gulliksen

Martin Plassen

Britta Fismen

Klaus-Joachim Jens

Klaus Joachim Jens

Siw Bodil Fredriksen

Erling Rytter

Svein Staal Eggen

Mats Tilset

Mark H Voges

Morten Fr&oslash;seth

Ketil Strand Andersen

Vidar Almqvist

Arild Geir Andersen

Arlid Follestad

Olav B Ryan

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.

Chemical looping combustion

The present invention comprises an apparatus and a method for mass analyses of an array of samples contained in distinct sample holders. The sample holders are placed on a plurality of sensors which preferably comprise an array of microbalances providing output signals comprising mass data on the array of samples.

Method and apparatus for mass analysis of samples

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%.

Olefin polymerization process

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.

Supported catalyst

The invention provides a catalyst system (preferably a heterogeneous catalyst system) comprising: a transition metal bisphenolate catalyst (preferably a group 4 to 6 transition metal bisphenolate catalyst) and another olefin polymerization catalyst, and optionally a co-catalyst, e.g. an organoaluminium compound or a boron compound.

Dual-site olefin polymerization catalyst composition

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.

Supported titanium catalyst system

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 Cp ZrR&prime;R&Prime;, wherein each Cp, being equal or different, is an unsubstituted or substituted cyclopentadienyl compound, and R&prime; and R&prime;, 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&prime; or R&Prime; may be a halide. The catalyst system is prepared by a method comprising the steps of calcining the support, joining onto the surface of the support a chronium-organic compound, subjecting the obtained catalyst precursor to oxidizing conditions to obtain the chromium in an oxidized state, reducing the oxidized chromium to obtain a main part thereof in a bivalent oxidation state, and contacting the reduced catalyst with the metallocene compound.

Catalyst system for ethylene polymerizations

The invention relates to the use of cyclic carbene-&eegr;-ligand complexes for catalysis of olefin polymerization.

Catalyst for the polymerization of olefins

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.

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.

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Oslo, Norway

Richard Blom