Static reactive jet mixer, and methods of mixing during an amine-phosgene mixing process

Patent metadata

Field	Value
Publication number	US-9259704-B2
Application number	US-201113702432-A
Country	US
Kind code	B2
Filing date	May 10, 2011
Priority date	Jun 14, 2010
Publication date	Feb 16, 2016
Grant date	Feb 16, 2016

Abstract

This disclosure relates to a static mixer ( 1 ) with a plurality of nozzles, and more generally, to a mixer and method of use thereof for mixing phosgene and amine with shaped jets or at least two rows of nozzles ( 15,16 ) where the second row ( 16 ) is used to enrich an area of deficit of the phosgene flow within the static reactive jet mixer ( 1 ). Configurations of enriching secondary flow include the use of concentric, eccentric, or offset jets of amine/phosgene, and the use of nozzles with different and irregular geometries to help focus amine/phosgene to a specific area of the principal phosgene flow.

First claim

What is claimed is:

1. A static reactive jet mixer comprising:
a fluid-receiving chamber for mixing a first component comprising phosgene and a second component comprising amine, a first conduit extending through the fluid-receiving chamber for transporting the first component from an inlet to an outlet and having a first row of nozzles along the first conduit between the inlet and the outlet, and an enrichment system for curing a deficit in first component at a mixing point in the fluid-receiving chamber including a second row of nozzles wherein each individual nozzle of the second row of nozzles is located within an individual nozzle of the first row of nozzles to enrich a deficient region, wherein the fluid receiving chamber is a continuous cylinder hollowed by the first conduit having an external circumferential wall between an external area of the chamber, and an internal area of the chamber wherein the first row of nozzles perforates the external wall for the passage of the second component from the external area into the internal area for mixing with the first component.

2. The static reactive jet mixer of claim 1 , wherein the second row of nozzles is connected to a second source of the first component through the external circumferential wall.

3. The static reactive jet mixer of claim 2 , wherein the second row of nozzles is offset from the first row of nozzles.

4. The static reactive jet mixer of claim 1 , wherein at least a nozzle from the first row of nozzles has an opening shape selected from a group consisting of a circle, an oval, a triangle, a rectangle, a diamond, and a teardrop, and the associated nozzle around the nozzle from the first row has a different opening shape.

5. The static reactive jet mixer of claim 4 , wherein the second row of nozzles is offset from the first row of nozzles.

6. The static reactive jet mixer of claim 1 , wherein the external circumferential wall includes a third conduit in the wall in communication with the second row of nozzles.

7. The static reactive jet mixer of claim 6 , wherein the second row of nozzles allows for the flow of a second source of the first component.

8. The static reactive jet mixer of claim 6 , wherein the second row of nozzles is offset from the first row of nozzles by a fixed distance.

9. The static reactive jet mixer of claim 6 , wherein at least a nozzle from the first row of nozzles has an opening shape selected from a group consisting of a circle, an oval, a triangle, a rectangle, a diamond, and a teardrop, and the associated nozzle around the nozzle from the first row has a different opening shape.

10. The static reactive jet mixer of claim 1 , wherein the fluid-receiving chamber is a continuous cylinder hollowed by the first conduit having an external circumferential wall between an external area of the chamber, and an internal area of the chamber, the external circumferential wall including at least the first row of nozzles and the second row of nozzles both in communication with the internal area of the chamber, and wherein the external circumferential wall includes a second conduit and a third conduit for the passage of at least the second component through the first row of nozzles.

Assignees

• Gillis Paul Aaron
• Bai Hua
• Mukherjee Joydeep
• Das Sharma Sanjib Kumar
• Gehrke Jorg-Peter
• Dow Global Technologies Llc

Inventors

• Gillis Paul Aaron
• Bai Hua
• Mukherjee Joydeep
• Das Sharma Sanjib Kumar
• Gehrke Jorg-Peter

Classifications

• B01F2215/044

  Numerical composition values of components or mixtures, e.g. percentage of components · CPC title

• B01J19/1812

  Tubular reactors · CPC title

• B01J4/002 Primary

  Nozzle-type elements (nozzle-type reactors B01J19/26) · CPC title

• B01J2204/002

  the feeding side being of particular interest · CPC title

• B01J19/0066 Primary

  Stirrers (mixing per se B01F) · CPC title