Mixer and processes incorporating the same

Patent metadata

Field	Value
Publication number	US-10065157-B2
Application number	US-201314436604-A
Country	US
Kind code	B2
Filing date	Oct 14, 2013
Priority date	Oct 26, 2012
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

Abstract

The present invention relates to a mixer, an apparatus comprising the mixer and a reactor, and processes incorporating the same. The mixer comprises an inlet ( 104 ) to a chamber ( 102 ), wherein the chamber inlet angle is less than 90°. The mixer further comprises an expander zone ( 106 ) that expands outwardly at an expander angle of less than 90°. The mixer may be coupled to a reactor at its outlet, which may closely approximate the size of the reactor inlet due to the expander ( 106 ).

First claim

What is claimed is:

1. A mixer for use in a chemical process comprising;
A first chamber having a first chamber inlet and a first chamber outlet
A second chamber having a second chamber inlet and a second chamber outlet;
A flow pattern development zone comprising a first tube within a second tube wherein the first tube is fluidly connected to the a first chamber outlet and the second tube is fluidly connected to the a second chamber outlet; and
An expander zone having an outer diameter substantially equal to that of the second chamber outlet and/or second tube of the flow pattern development zone and an inner diameter that expands outwardly at an expander angle (β) of less than 90°;
Wherein the chamber inlet angle (α) of at least one of the first or second chamber inlet(s) is less than 90°, the first chamber outlet is arranged concentrically within the second chamber outlet, the flow pattern development zone is upstream of the expander zone and the first tube of the flow pattern development zone ends at an inlet of the expander zone;
wherein the chamber-inlet angle (α) is from 30 to 80°;
wherein the angle (γ) between the chamber inlet and a line tangential to the chamber projected on a cross sectional plane to the chamber intersecting the point where the longitudinal axis of the inlet line meets the chamber's wall is 20° to 60°; and
wherein the mixer further comprising a mixing zone downstream of the flow pattern development zone and upstream of the expander zone, wherein the mixing zone has an outer diameter substantially equal to that of the flow pattern development zone and the first tube of the flow pattern development zone ends at the outlet of the mixing zone.

2. The mixer of claim 1 , wherein the expander angle (β) is less than 20°.

3. The mixer of claim 1 , wherein the inner diameter of the at least one of the first or second chambers is at least 1.25 times greater than the inner diameter of its respective chamber inlet.

4. The mixer of claim 1 , wherein the inner diameter of at least one of the first or second chamber is greater than the inner diameter of its respective outlet.

5. The mixer of claim 1 , wherein an annular space is created by the first and second chamber outlets and the ratio of the cross sectional area of the first chamber outlet to the cross sectional area of the annular space is between 1 and 3.

6. The mixer of claim 1 , wherein the length of the flow pattern development zone is at least 0.5 times the diameter of the second chamber outlet.

7. The mixer of claim 1 , wherein the inner diameter of the mixing zone is less than or equal to the inner diameter of the second tube of the flow pattern development zone.

8. The mixer of claim 4 , wherein the inner chamber of at least one of the first or second chambers is tapered to provide its respective chamber outlet.

9. The mixer of claim 1 , wherein the mixing zone comprises a single tube fluidly connected to the outermost chamber outlet and/or outermost tube of the flow pattern development zone, wherein the length of the mixing zone is substantially the same as or greater than the inner diameter of the mixing zone.

10. An apparatus comprising
A reactor having an inner diameter of greater than 0.1 feet and less than 36 feet; and the mixer according to claim 1 having an inlet with an inner diameter of less than the reactor inner diameter.

11. The apparatus of claim 10 , wherein the ratio of the inner diameter of the chamber outlet of the mixer to the inner diameter of the reactor is from 2 to 5.

Assignees

• Blue Cube Ip Llc

Inventors

• Tirtowidjojo Max M
• Bai Hua
• Calverley Edward M

Classifications

• B01J2219/24

  Stationary reactors without moving elements inside · CPC title

• B01J2219/1943

  cylindrical · CPC title

• C07C17/04

  to unsaturated halogenated hydrocarbons · CPC title

• B01J4/002 Primary

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

• B01J19/24

  Stationary reactors without moving elements inside (B01J19/08, B01J19/26 take precedence; with stationary particles B01J8/02) · CPC title