Patent ID: 11952323
Assignee: NESTE OYJ
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 15:
16. An apparatus for performing a process for for producing poly-α-olefins (PAO), which includes:
a) providing a reactor system including at least one reactor having a reactor vessel and a system for recycling and cooling part of reactor vessel outlet stream;
and co-catalyst, which co-catalyst together with the catalyst forms a catalyst complex: catalyst b) introducing to at least one reactor vessel of the reactor system at least α-olefin monomers, recycled reactor outlet stream,
c) reacting in the reactor vessel the α-olefin monomers to form a mixture of poly-α-olefins (PAO) product;
d) withdrawing from the reactor vessel an outlet stream including unreacted monomers, the mixture of PAO product and the catalyst complex; and
e) splitting the outlet stream to a first stream, which is cooled and introduced back to the reactor vessel as a recycled reactor outlet stream, and a product stream; wherein
at least one reactor in the reactor system is a cone reactor, in which cone reactor the reactor vessel has a first cross sectional area in an upper part of the vessel the cross sectional area decreases downwards to a second cross sectional area, which is smaller than the first cross sectional area, wherein the apparatus comprises;
a reactor system including at least one reactor having a reactor vessel and a system for recycling and cooling part of reactor vessel outlet stream;
means for introducing to at least one reactor vessel at least α-olefin monomers, recycled reactor outlet stream, catalyst and co-catalyst; and
an outlet for withdrawing an outlet stream from the reactor vessel, wherein:
the at least one reactor vessel is a cone reactor, which cone reactor has a first cross sectional area in an upper part of the vessel and the cross sectional area decreases downwards to a second cross sectional area, which is smaller than the first cross sectional area.