Triphasic flow millireactors

Patent metadata

Field	Value
Publication number	US-9850184-B2
Application number	US-201515302743-A
Country	US
Kind code	B2
Filing date	Jun 19, 2015
Priority date	Jun 20, 2014
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

Disclosed is a reactor system that contains multiple millireactors, each including a millitube, a first feed line, a second feed line, and a third feed line. Each of the first and second feed lines has a hydraulic damper disposed therein. Also disclosed is a process for conducting in a millitube a triphasic flow reaction that requires a liquid reactant, a gas reactant, and a catalyst.

First claim

What is claimed is:

1. A reactor system comprising multiple millireactors, each of which includes:
a millitube having a first end, a second end, a first chamber attached to the first end, and a second chamber disposed between the two ends of the millitube;
a first feed line having a first end for receiving a first liquid, a second end connected in fluid communication to the first chamber, and a first hydraulic damper disposed between the two ends of the first feed line;
a second feed line having a first end for receiving a second liquid, a second end connected in fluid communication to the first chamber, and a second hydraulic damper disposed between the two ends of the second feed line; and
a third feed line having a first end for receiving a gas and a second end connected in fluid communication to the second chamber,

whereby the first chamber is capable of receiving both the first and second liquids, and the second chamber is capable of receiving both the gas and a mixture of the first and second liquids.

2. The reactor system of claim 1 , further comprising:
a first liquid container connected to the first end of the first feed line, the first container connected in fluid communication to a first pump;
a second liquid container connected to the first end of the second feed line, the second container connected in fluid communication to a second pump;
a gas container connected to the first end of the third feed line; and
an outflow container connected to the second end of the millitube.

3. The reactor system of claim 2 , wherein the first and second pumps are each a peristaltic pump.

4. The reactor system of claim 1 , wherein the millitube is a polytetrafluoroethylene tube.

5. The reactor system of claim 4 , wherein the millitube has a length of 2-20 m and an inner diameter of 1-5 mm.

6. The reactor system of claim 4 , wherein the first and second hydraulic dampers each consist of a first tube, a second tube, and a third tube in series, the second tube having an inner diameter larger than that of the first tube and that of the third tube.

7. The reactor system of claim 6 , wherein the first tube has the same length and inner diameter as those of the third tube.

8. The reactor system of claim 6 , wherein the second tube in the first hydraulic damper is a silicone tube and the second tube in the second hydraulic damper is a viton tube.

9. The reactor system of claim 5 , wherein the first and second hydraulic dampers each consist of a first tube, a second tube, and a third tube in series, the second tube in each of the hydraulic dampers having an inner diameter larger than that of the first tube and that of the third tube, the first tube in each of the hydraulic dampers having the same length and inner diameter as those of the third tube, the second tube in the first hydraulic damper being a silicone tube, and the second tube in the second hydraulic damper being a viton tube.

10. The reactor system of claim 2 , wherein the millitube is a polytetrafluoro-ethylene tube, a polyether ether ketone tube, a fluorinated ethylene propylene tube, a glass tube, or a metal tube.

11. The reactor system of claim 10 , wherein the millitube has a length of 2-20 m and an inner diameter of 1-5 mm.

12. The reactor system of claim 10 , wherein the first and second hydraulic dampers each consist of a first tube, a second tube, and a third tube in series, the second tube having an inner diameter larger than that of the first tube and that of the third tube.

13. The reactor system of claim 12 , wherein the first tube has the same length and inner diameter as those of the third tube.

14. The reactor system of claim 12 , wherein the second tube in the first hydraulic damper is a silicone tube and the second tube in the second hydraulic damper is a viton tube.

15. The reactor system of claim 11 , wherein the first and second hydraulic dampers each consist of a first tube, a second tube, and a third tube in series, the second tube in each of the hydraulic dampers having an inner diameter larger than that of the first tube and that of the third tube, the first tube in each of the hydraulic dampers having the same length and inner diameter as those of the third tube, the second tube in the first hydraulic damper being a silicone tube, and the second tube in the second hydraulic damper being a viton tube.

Assignees

• Nat Univ Singapore

Inventors

• Khan Saif A
• Yan Ning
• Yap Swee Kun
• Yuan Yuan

Classifications

• B01J19/0093

  Microreactors, e.g. miniaturised or microfabricated reactors (laboratory containers with capillary fluid transport in microfabricated channels or chambers B01L3/5027) · CPC title

• B01J2219/00894

  More than two inlets · CPC title

• B01J2219/0086

  Dimensions of the flow channels · CPC title

• B01J2219/00792

  One or more tube-shaped elements · CPC title

• B01J2219/00813

  Fluidic connections · CPC title