Reactor tube assembly

Patent metadata

Field	Value
Publication number	US-2022314182-A1
Application number	US-202017640024-A
Country	US
Kind code	A1
Filing date	Sep 16, 2020
Priority date	Sep 20, 2019
Publication date	Oct 6, 2022
Grant date	—

Abstract

The present invention relates to a reactor tube assembly comprising a reactor tube having a tube length and an inner surface, at least two tubular inserts each having an insert length and comprising i) a shell having an exterior portion at least partially contacting the inner surface of the reactor tube and ii) at least one fin projecting from the shell in a radial direction towards a center of said insert, wherein the inserts are positioned in the tube in a stacked manner such that the fins of the at least two inserts are offset in a longitudinal direction a particulate catalyst in contact with at least the shell and the fins of the inserts.

First claim

1 . A reactor tube assembly comprising
a reactor tube having a tube length and an inner surface, at least two tubular inserts each having an insert length and comprising i) a shell having an exterior portion at least partially contacting the inner surface of the reactor tube, ii) at least one fin projecting from the shell in a radial direction towards a center of said insert, wherein the inserts are positioned in the lube in a slacked manner such that the fins of the at least two inserts are offset in a longitudinal direction a particulate catalyst in contact with at least the shell and the fins of the inserts.

2 . The reactor assembly of claim 1 wherein the insert length of the inserts is the same or different and is from 1-20% of the tube length.

3 . The reactor assembly of claim 1 where in the sum of the insert lengths is from 2-80 of the lube length.

4 . The reactor assembly of claim 1 wherein the inserts have from 2-5 fins.

5 . The reactor assembly of claim 1 wherein the inserts further comprise at least 2 positioning means projecting from the shell towards and in contact with the inner surface of the reactor tube.

6 . The reactor assembly of claim 1 wherein the amount of particulate catalyst exceeds an internal volume of the inserts.

7 . The reactor assembly of claim 1 wherein the slacked inserts extend from an outer end of the reactor tube.

8 . The reactor assembly of claim 1 wherein substantially no catalyst is present in the space between the shell of the insert and the inner surface of the reactor tube.

9 . The reactor assembly of claim 1 wherein the inserts are made from metal.

10 . The reactor assembly of claim 1 wherein the particulate catalyst is configured such that it can be added and removed from the reactor tube without removing the inserts.

11 . A reactor comprising one or more of the tube assembly of claim 1 .

12 . A method comprising providing, the reactor tube assembly of claim 1 and carrying out a chemical reaction using the reactor tube assembly.

13 . The method of claim 12 comprising reacting carbon monoxide and chloride in a reactor comprising the reactor tube assembly.

14 . The method of claim 13 wherein the carbon monoxide and chlorine are fed to the lube assembly at the side from which the inserts extend.

15 . The reactor of claim 11 wherein the reactor is a phosgene reactor.

16 . The reactor assembly of claim 7 wherein the stacked inserts extend from the outer end of the reactor tube where the reactants are fed to the reactor lube.

17 . The method of claim 12 wherein the chemical reaction comprises reacting gaseous reactants.

Assignees

• Sabic Global Technologies Bv

Inventors

• Anderson John Joseph
• Swernath Subramanian Brahmadathan

Classifications

• B01J8/0292

  with stationary packing material in the bed, e.g. bricks, wire rings, baffles · CPC title

• B01J8/065 Primary

  Feeding reactive fluids · CPC title

• C01B32/80

  Phosgene · CPC title

• B01J8/06 Primary

  in tube reactors; the solid particles being arranged in tubes · CPC title

• B01J2208/065

  Heating or cooling the reactor · CPC title