Saudi Basic Industries Corporation

Linde Aktiengesellschaft

Müller, Bernd H.

Peter M Fritz

Heinz Bölt

Fuad Mosa

Wolfgang Müller

Florian Winkler

Mohammed Hassan Al-Hazmi

Normen Peulecke

Uwe Rosenthal

Bernd H Müller

Anina Wöhl

Anton Wellenhofer

Vugar O Aliyev

Richard Schneider

Talal Ali

Marko Hapke

Heinz Boelt

Bernd H Mueller

Helmut Fritz

Andreas Meiswinkel

Hans-Jörg Zander

Sultan Eid Al-Otaibi

Sebastian Muschelknautz

Carsten Taube

Mohammed Zahoor

Stephan Peitz

Shahid Azam

Atieh Abu-Raqabah

Karl-Heinz Hofmann

Volker Göke

Volker Goeke

Anina Woehl

Syriac Palackal

Bhaskar Reddy Aluri

Holger Hackner

Karl-Heinz Hoffman

Stefan Glanz

Anton Kirzinger

Ayed Al-Ayed

Abdullah Al-Dugathier

Markus Köhler

Vugar Aliyev

Sultan Al-Otaibi

Sebastian Muschelknantz

Wolfgang MÜLLER

Wofgang Müller

Aliyev Vugar

Shahid Majeed Azam

Fuad Mohammed Mosa

Anton Wellenofer

Wolfgang Mueller

Mohammed Al-Hazmi

Bernd H Muller

Abdellah Al-Dugathier

Fuad Mousa

The present invention relates to a method for preparing linear alpha-olefins (LAO) by oligomerization of ethylene in the presence of solvent and homogenous catalyst, comprising the steps of: (i) feeding ethylene, solvent and catalyst into an oligomerization reactor, (ii) oligomerizing the ethylene in the reactor, (iii) removing a reactor outlet stream comprising solvent, linear alpha-olefins, ethylene, and catalyst from the reactor via a reactor outlet piping system, (iv) transferring the reactor outlet stream to a catalyst deactivation and removal step, and (v) deactivating and removing the catalyst from the reactor outlet stream, characterized in that at least one organic amine is added into the oligomerization reactor and/or into the reactor outlet piping system.

Method for preparing linear alpha-olefins

A catalyst composition and a process for di-, tri- and/or tetramerization of ethylene, wherein the catalyst composition comprises a chromium compound, a ligand of the general structure RRP&#x2014;N(R)&#x2014;P(R)&#x2014;N(R)&#x2014;PRR, or any cyclic derivatives thereof, wherein at least one of the P or N atoms of the PNPNP-unit is member of a ring system, the ring system being formed from one or more constituent compounds of the ligand by substitution, and a co-catalyst or activator.

Catalyst composition and process for di-, tri- and/or tetramerization of ethylene

The present invention relates to a method for preparing linear alpha-olefins by oligomerizing of ethylene in the presence of a first organic solvent and a homogenous catalyst in a reactor, characterized in that the reactor overhead is cooled by means of a refrigerant.

Method for preparing linear alpha-olefins with improved heat removal

The present invention relates to a method for preparing linear alpha-olefins (LAO) by oligomerization of ethylene in the presence of a solvent and homogeneous catalyst, comprising the steps of:

The present invention relates to a catalyst composition comprising: (a) a binuclear chromium(II) complex; (b) a ligand of the general structure (A) RRP&#x2014;N(R)&#x2014;P(R)&#x2014;N(R)&#x2014;H or (B) RRP&#x2014;N(R)&#x2014;P(R)&#x2014;N(R)&#x2014;PRR, wherein R, R, R, R, R, Rand Rare independently selected from halogen, amino, trimethylsilyl, C-C-alkyl, aryl and substituted aryl, wherein the PNPN- or PNPNP-unit is optionally part of a ring system; and (c) an activator or co-catalyst, as well as to a process for oligomerization of ethylene.

Catalyst composition and process for oligomerization of ethylene

The present invention relates to a catalyst composition and a process for di-, tri- and/or tetramerization of ethylene, wherein the catalyst composition comprises a chromium compound, a ligand of the general structure (A) RRP&#x2014;N(R)&#x2014;P(R)&#x2014;N(R)&#x2014;H or (B) RRP&#x2014;N(R)&#x2014;P(R)&#x2014;N(R)&#x2014;PRR, or any cyclic derivatives of (A) and (B), wherein at least one of the P or N atoms of the PNPN-unit or PNPNP-unit is member of a ring system, the ring system being formed from one or more constituent compounds of structures (A) or (B) by substitution and a co-catalyst or activator.

The present invention relates to a method and a reactor system for preparing linear alpha-olefins by oligomerization of ethylene in the presence of an organic solvent and an oligomerization catalyst, wherein a product fraction of Calpha-olefins contaminated with aromatic Ccompounds is separated from a product main stream and transferred into a conversion reactor, where Calpha-olefins and aromatic Ccomponents are reacted in the presence of a Friedel-Crafts alkylation catalyst to produce aromatic Ccompound.

Method for preparing linear alpha-olefins with removal of aromatic by-products and reactor system therefor

The present invention relates to a method for the deactivation of an organometallic catalyst in the product stream from an oligomerization reactor for the production of linear alpha-olefin, characterized in that the catalyst-containing product stream of the reactor is subjected to a temperature of at least 160&#xb0; C. in a heating device. A reactor system for the method of the invention is also disclosed.

Method for deactivation of an organometallic catalyst and reactor system therefor

The present invention relates to a catalyst for oligomerization of ethylene, comprising a functionalized solid support; a ligand immobilized on the solid support by chemical bonding, wherein the immobilized ligand has the structure (R)(R)P&#x2014;N(R)&#x2014;P(R)&#x2014;Y-support or (R)(R)P&#x2014;N(R)&#x2014;P(R)&#x2014;N(R)&#x2014;P(R)&#x2014;Y-support, wherein R, R, R, R, Rand Rare independently selected from aliphatic group, aryl group, amino group and trimethylsilyl group and Y is the functional group of the support or a derivative thereof; and a chromium compound reacted with the ligand; and to a method for its preparation and a process for oligomerization of ethylene utilizing the catalyst.

Catalyst for oligomerization of ethylene, method for its preparation and oligomerization process using the catalyst

The present invention relates to a method for oligomerization or polymerization of ethylene and/or alpha-olefins utilizing reactor equipment and other equipment wherein starting material comprising monomer(s), catalyst, cocatalyst and solvent is transferred to the reactor equipment via first piping, and product material comprising oligomer and/or polymer, non-reacted monomer(s), catalyst, cocatalyst and solvent is discharged from the reactor equipment via second piping, characterized in that the first piping, second piping, reactor equipment and/or other equipment are flushed with a product fraction obtained by said or a respective previous method prior to and/or after that oligomerization or polymerization method.

Method for oligomerization and/or polymerization of ethylene with flushing of equipment and piping

The present invention relates to a bubble column reactor comprising a column reactor having a sparger plate dividing the column reactor into a top reaction compartment and a bottom compartment, characterized in that an inlet and outlet line for introducing and disposing a flushing medium are connected to the bottom compartment; and an operation method thereof.

Method for operating bubble column reactor for the oligomerization of ethylene

The present invention relates to a process for oligomerization/polymerization of ethylene and/or alpha-olefins, comprising the steps of oligomerizing/polymerizing ethylene and/or alpha-olefins to produce a reaction product which contains undesired reaction by-products, separating the reaction by-product from the reaction product as one or more reaction by-product fractions, and subjecting at least one of the reaction by-product fractions to steam cracking to produce a steam cracking product which comprises ethylene, which may be optionally purified and feed to the oligomerization/polymerization of ethylene and/or alpha olefins step.

Process and plant for oligomerization/polymerization of ethylene and/or alphaolefins

The present invention relates to a method for processing high molecular weight oligomer waste products formed during the production of linear alpha-olefins by oligomerization of ethylene in a reactor in the presence of a solvent and a catalyst, characterized in that the high molecular weight oligomers are separated in a separation unit from a product stream of the reactor comprising the solvent, the catalyst, linear alpha-olefins and high molecular weight oligomers having a solidification temperature in the range of about 60-100&#xb0; C., then diluted with a dilution medium and heated to about 130&#xb0; C. to about 200&#xb0; C., the diluted high molecular weight oligomers are then transferred to a disposal device, wherein at least some of the dilution medium may be recovered and recycled for addition to the dilution medium.

Method for the preparation of linear alpha-olefins and reactor system therefore with improved disposal of high molecular weight oligomers

The invention relates to a homogeneous catalyst for the production of linear alpha-olefins by oligomerisation of ethylene, consisting of a zirconium salt of organic acids and a cocatalyst which consists of alkylaluminiums and/or aluminium chloride. The activity of the catalyst, system may sometimes be raised substantially by adjusting the molar ratio of chlorine to aluminium in the cocatalyst within the range between 1.0 and 1.5. The economic viability of the production process and product purity are improved.

Cocatalyst for the production of linear alpha-olefins

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Unterhaching, Germany

Peter M Fritz