Patent application number | Description | Published |
20090203947 | Method for Oligomerization of Ethylene and Reactor System therefor with Cooling Device - The present invention relates to a method for oligomerisation of ethylene to form linear alpha-olefins in an oligomerisation reactor in the presence of solvent and catalyst, wherein a reaction product containing unreacted ethylene and light linear alpha-olefins is discharged from the oligomerisation reactor and passed to at least one first direct cooling device for separating the reaction product into an ethylene rich gaseous fraction and a light linear alpha-olefins rich liquid fraction, wherein at least a portion of the light linear alpha-olefins rich liquid fraction is passed to a second cooling device for lowering the temperature thereof and is subsequently re-introduced into the first direct cooling device; and to a reactor system therefore. | 08-13-2009 |
20090214405 | Bubble Column Reactor and Operation Method Thereof - 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. | 08-27-2009 |
20090318639 | Method for Ologomerization and/or Poymerization with Flushing of Equipment and Piping - 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. | 12-24-2009 |
20100190939 | CATALYST COMPOSITION AND PROCESS FOR DI-, TRI-AND/OR TETRAMERIZATION 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) R | 07-29-2010 |
20100191029 | METHOD FOR PREPARATION OF LINEAR ALPHA-OLEFINS AND REACTOR SYSTEM THEREFOR - The present invention relates to a method for the preparation of linear alpha-olefins by oligomerization of ethylene in a reactor in the presence of a catalyst and solvent, wherein an outlet stream from the reactor comprising the solvent, catalyst and linear alpha-olefins is heated by at least one heating means to a temperature at which all or substantially all of the linear alpha-olefins are dissolved and/or melted in the outlet stream; and a reactor system therefor. | 07-29-2010 |
20100298618 | CATALYST COMPOSITION AND PROCESS FOR OLIGOMERIZATION OF ETHYLENE - The present invention relates to a catalyst composition comprising: (a) a binuclear chromium(II) complex; (b) a ligand of the general structure (A) R | 11-25-2010 |
20110046429 | Method for preparing linear alpha-olefins - 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. | 02-24-2011 |
20110054233 | METHOD FOR OLIGOMERIZATION OF ETHYLENE AND REACTOR SYSTEM THEREFOR - The present invention relates to a method and a reactor system, for the oligomerization of ethylene, comprising oligomerizing ethylene in a reactor in the presence of a solvent and a catalyst composition to produce a liquid product stream comprising linear alpha-olefins, solvent and catalyst composition, and deactivating and extracting the catalyst composition in said liquid product stream by mixing it with a polar phase in a dynamic mixing device having rotor and stator elements comprising concentric tool rings. | 03-03-2011 |
20110178355 | Method for Preparing Linear Alpha-Olefins with Removal of Aromatic By-Products and Reactor System Therefor - 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 C | 07-21-2011 |
20120080093 | Bubble Column Reactor with Level Measuring Device and Method for Level Measurement therein - The present invention relates to a bubble column reactor comprising a column reactor containing a lower 2-phase cm section and an upper gaseous phase section, characterized in that the reactor comprises a measurement device for measuring the level of 2-phase section in the column reactor, wherein the measurement device comprises an emitter and a detector for electromagnetic PI- radiation which are positioned outside of the column reactor and to a method for level measurement in such a reactor. | 04-05-2012 |
20120184692 | METHOD FOR PREPARING LINEAR ALPHA-OLEFINS - 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:
| 07-19-2012 |
20130008772 | GASIFICATION PROCESS - A method for converting biomass into syngas by converting the biomass into a viscous, pumpable pyrolysis liquid and feeding this liquid into a gasifier. The biomass is first fed to a pyrolysis unit which will convert the biomass in part to the viscous, pumpable pyrolysis liquid. This pyrolysis liquid is then fed into a gasifier either by itself or with a solid carbon-containing component where it will react to form syngas. | 01-10-2013 |
20140179970 | CATALYST COMPOSITION AND PROCESS FOR DI-, TRI-AND/OR TETRAMERIZATION OF ETHYLENE - 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 R | 06-26-2014 |