Oligomerization of alpha-olefins
AssigneeIndian Oil Corporation Limited
InventorsRakesh Sarin, Sabyasachi Sinha Ray, Deepak Kumar Tuli, Madan Mohan Rai, Sobhan Ghosh, Akhilesh Kumar Bhatnagar
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Abstract
This invention relates to a catalyst composition capable of effecting selective oligomerisation of olefins contained in cracked refinery distillate streams, comprising of olefins, aromatics, paraffins and cycloparaffins. The catalyst composition gives very high conversion of olefins to poly olefins, which after distillation and stabilization by hydrogenation affords lubricating oil base stocks. The catalyst composition comprises of an aluminum halide and a transition metal alkoxide belonging to group IVB.
Claims6
A process for oligomerization of olefins contained in refinery distillate streams including paraffins, naphthenes and aromatics which comprises contacting the stream with a catalyst consisting of a first constituent which is at least one aluminum halide and a second constituent which is at least one alkoxide of a transition metal of Group IVB of the Periodic Table and which has a general formula:
- M(OR)4,
- where M is selected from the group consisting of metals of Group IVB of the Periodic Table and R is one of (a) an alkyl group having from 1-12 carbon atoms or (b) an alkylaryl group having an alkyl chaim having from 1-12 carbon atoms under condition effective to produce oligomerization of the olefins.
Dependencies are inferred from the claim text.