METHOD OF PRODUCING LINEAR ALPHA-OLEFINS WITH IMPROVED REMOVAL OF HIGH MOLECULAR WEIGHT OLIGOMERS AND REACTOR SYSTEM FOR REALISING SAID METHOD Russian patent published in 2010 - IPC C07C2/34 C07C11/02 B01J8/22 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing linear α-olefins through oligomerisation of ethylene in a reactor in the presence of a solvent and a catalyst, characterised by that high molecular weight oligomers are separated from a discharge stream coming out of the reactor, containing solvent, catalyst, linear α-olefins and mainly high molecular weight oligomers mainly in solid state at reaction temperature in a separation device and said oligomers are then separated by a separating medium and heated to 130°C-200°C. The separated high molecular weight oligomers are then moved to a waste destruction device, where part of the separated high molecular weight oligomers are destroyed and the other part is taken for reciculation in a recirculation loop lying after the separation device. Flow rate in the loop is between 1 and 50 m³/h. The invention also relates to a device for realising the said method.

EFFECT: use of said inventions enables to avoid clogging of equipment and pipes in contact with streams containing high molecular weight oligomers.

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