Multiphase reactor system

Patent metadata

Field	Value
Publication number	US-9902686-B2
Application number	US-201615342686-A
Country	US
Kind code	B2
Filing date	Nov 3, 2016
Priority date	Nov 3, 2015
Publication date	Feb 27, 2018
Grant date	Feb 27, 2018

Abstract

A one-to-many parallelized millireactor system capable of high throughput production in millireactors. Also disclosed is a method for carrying out multi-phase reactions.

First claim

The invention claimed is:

1. A multiphase reactor system for performing multi-phase reactions, the reactor system comprising:
(a) a plurality of millitube reactors, each millitube reactor comprises 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;
(b) a first feed line comprising a first end and a second end, the first end for receiving a first liquid, a first level junction connected to the second end, and a first hydraulic damper disposed between the two ends of the first feed line;
(c) a second feed line comprising a first end and a second end, the first end for receiving a second liquid, a first level junction connected to the second end, and a second hydraulic damper disposed between the two ends of the second feed line;
(d) a third feed line comprising a first end and a second end, the first end for receiving a gas, and a first level junction connected to the second end,
wherein,
(a) the first level junction in each of the first, second and third feed line forks each feed line into y-number of feed lines,
(b) each of the y-number of feed lines from the first level junction of the first feed is connected in fluid communication with the first chamber of the millitube reactor, each of the y-number of feed lines from the first level junction of the second feed is connected in fluid communication with the second chamber, and each of the y-number of feed lines from the first level junction of the third feed is connected in fluid communication with the third chamber,
(c) the first chamber of the millitube reactor is capable of receiving both the first and second liquids, and the second chamber is capable of receiving both a gas and a mixture of the first and second liquids, and
(d) y is an integer greater or equal to 2.

2. The multiphase reactor system of claim 1 , wherein each feed line from the first level junction further comprises a second level junction for forking each feed line into further two feed lines.

3. The multiphase reactor system of claim 2 , wherein each feed line from the second level junction further comprises a third level junction for forking each feed line into further two feed lines.

4. The multiphase reactor system of claim 3 , further comprising n-level junctions for providing a plurality of first, second and third feed lines connected in fluid communication with a plurality of millitube reactors, the plurality of millitube reactors connected in parallels, wherein n is an integer greater or equal to 1.

5. The multiphase reactor system of claim 4 , wherein the second ends of two millitube reactors converge into one output stream at a junction.

6. The multiphase reactor system of claim 5 , wherein the output streams from the millitube reactors converge into one output stream.

7. The multiphase reactor system of claim 1 , further comprising:
(a) 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;
(b) 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;
(c) a gas container connected to the first end of the third feed line; and
(d) an outflow container connected to the second end of the millitube.

8. The multiphase reactor system of claim 7 , wherein the first and second pumps are each a peristaltic pump.

9. The multiphase reactor system of claim 1 , wherein the millitube reactor has a length of about 2 to 20 m and an inner diameter of about 1 to 5 mm.

10. The multiphase reactor system of claim 1 , wherein the hydraulic damper comprises a first tube, a second tube, and a third tube that are connected in series, the second tube having an inner diameter larger than that of the first tube and that of the third tube.

11. The multiphase reactor system of claim 10 , wherein the first tube has the same length and inner diameter as those of the third tube.

12. The multiphase reactor system of claim 10 , wherein the second tube is an elastic sleeve.

13. The multiphase reactor system of claim 12 , wherein the second tube has an inner diameter of 4.76 mm and a length of 8 cm.

14. The multiphase reactor system of claim 12 , wherein the second tube is made of silicone.

15. The multiphase reactor system of claim 1 , 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.

Assignees

• Nat Univ Singapore

Inventors

• Khan Saif A
• Yap Swee Kun

Classifications

• B01J2219/0295

  Synthetic organic materials · CPC title

• C07C209/36 Primary

  by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings {in presence of hydrogen-containing gases and a catalyst} · CPC title

• B01J8/065

  Feeding reactive fluids · CPC title

• B01J8/0492

  Feeding reactive fluids (for solid material, see B01J8/0015) · CPC title

• B01J2219/0277

  Metal based · CPC title