Compartmentalized oligomerization reactor

Patent metadata

Field	Value
Publication number	US-11638905-B2
Application number	US-202016884934-A
Country	US
Kind code	B2
Filing date	May 27, 2020
Priority date	May 28, 2019
Publication date	May 2, 2023
Grant date	May 2, 2023

Abstract

The present invention relates to the field of gas/liquid reactors permitting the oligomerization of olefins to give linear olefins by homogeneous catalysis, comprising a reaction chamber and vertical internal means of compartmentalization.

First claim

The invention claimed is:

1. A reactor suitable for oligomerization by homogeneous catalysis, comprising
a reactor chamber ( 1 ) of elongate shape along the vertical axis;
a plurality of n oligomerization zones (Zn), which are delimited by internal compartmentalization walls arranged along the vertical axis of the chamber ( 1 ) and which are each able to contain a liquid part of catalytic activity and a gaseous part;
connection of the n oligomerization zones in series;
an inlet introducing, into each compartment Z 1 to Zn- 1 , a flow comprising an olefinic feedstock;
an outlet withdrawing, from the final compartment Zn, an oligomerization effluent, in which reactor
n is an integer equal to 3;
said internal compartmentalization walls are flat plates and a cylindrical wall arranged in such a way as to delimit said n oligomerization zones (Zn) interconnected in series so as to be able to transfer a liquid phase of catalytic activity from a zone Zn- 1 to an adjacent zone Zn by way of said connection.

2. The reactor according to claim 1 , in which at least one internal compartmentalization wall extends over the entire length of the reactor, so as to prevent the passage of liquid between two adjacent oligomerization zones.

3. The reactor according to claim 2 , in which the connection between the two adjacent oligomerization zones are outside the reactor chamber ( 1 ).

4. The reactor according to claim 1 , comprising internal connections obtaining a gravitational flow.

5. The reactor according to claim 4 , in which the internal connections are orifices or recesses.

6. The reactor according to claim 4 , in which the internal compartmentalization walls have a triangular and/or circular shape in their upper parts.

7. The reactor according to claim 4 , in which the connection of the upstream compartmentalization wall can be advantageously situated higher than the connection of the adjacent downstream compartmentalization wall.

8. The reactor according to claim 1 , in which the reactor chamber ( 1 ) has a height to width ratio (denoted H/W) of 1 to 17.

9. The reactor according to claim 1 , in which each oligomerization zone comprises one or more stirrers which are a recirculation loop and/or a mechanical stirrer.

10. The reactor according to claim 9 , in which each oligomerization zone comprises a recirculation loop in combination with at least one heat exchanger.

11. The reactor according to claim 1 , in which one or more of the oligomerization zones Z 2 to Zn comprises an inlet introducing the olefinic feedstock.

12. The reactor according to claim 1 , in which the final oligomerization zone Zn does not comprise an inlet introducing the olefinic feedstock.

13. A process of oligomerization by homogeneous catalysis, using the reactor according to claim 1 .

Assignees

• Ifp Energies Now

Inventors

• Raynal Ludovic
• Vonner Alexandre

Classifications

• B01J19/18 Primary

  Stationary reactors having moving elements inside (B01J19/08, B01J19/26 take precedence) · CPC title

• B01J4/008

  Feed or outlet control devices · CPC title

• B01J19/245

  placed in series · CPC title

• C07C2/08

  Catalytic processes · CPC title

• B01J10/00

  Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor (B01J19/08 takes precedence; separation, e.g. distillation, also combined with chemical reactions B01D, {e.g. B01D3/009}) · CPC title