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AssigneesSaudi Basic Industries Corporation, Linde Aktiengesellschaft
InventorsPeter Fritz, Heinz Bölt, Stefan Glanz, Richard Schneider, Talal Ali, Sultan Al-Otaibi, Fuad Mosa
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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° C., then diluted with a dilution medium and heated to about 130° C. to about 200° 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.
A method for processing high molecular weight oligomers having a solidification temperature between about 60°C.-100°C. which are formed during the production of linear alpha-olefins by oligomerization of ethylene in a reactor in the presence of a solvent and a catalyst, which method avoids the plugging of process lines carrying said high molecular weight oligomers, characterized in that the high molecular weight oligomers are separated from a product stream of the reactor comprising the solvent, the catalyst, linear alpha-olefins and high molecular weight oligomers, and then diluted in a dilution unit with a dilution medium and heated to about 130°C. to about 200°C., the diluted high molecular weight oligomers are then transferred to a disposal device, wherein said dilution medium is recovered and recycled to the dilution unit.
The method according to c1aim 1, wherein the dilution mediums and the high molecular weight oligomer are combined to a dilution ratio of about 5:1 to about 15:1.
Dependencies are inferred from the claim text.