Microreactor, chemical product manufacturing system and microreactor manufacturing method

Patent metadata

Field	Value
Publication number	US-10464039-B2
Application number	US-201716092567-A
Country	US
Kind code	B2
Filing date	Mar 13, 2017
Priority date	Apr 12, 2016
Publication date	Nov 5, 2019
Grant date	Nov 5, 2019

Abstract

In mixing of raw materials having different flow rate ratios (volume ratios) (different flow rates), in order to achieve a good mixing effect, the present invention includes: for raw materials having different flow rates, a high-flow-rate side flow path (102) through which a raw material on a high-flow-rate side flows; a low-flow-rate side flow path (103) through which a raw material on a low-flow-rate side flows; branch flow paths (102a, 102b) which are branched from the high-flow-rate side flow path; and a residence flow path (104) which is a flow path after the branch flow paths (102a, 102b) and the low-flow-rate side flow path (103) merge. The branch flow path (102a) and the branch flow path (102b) merge in a way of sandwiching the low-flow-rate side flow path (103).

First claim

The invention claimed is:

1. A microreactor, comprising:
a plurality of flow paths for a plurality of raw materials with different flow rates to flow therethrough respectively;
a first introduction port through which a high-flow-rate material is introduced;
a second introduction port through which a low-flow-rate material is introduced;
a first flow path, in communication with the first introduction port, that branches into a plurality of second paths, wherein the plurality of second paths merge downstream; and
a third flow path, in communication with the second introduction port,
wherein each of the plurality of second paths are merged into the third flow path.

2. The microreactor according to claim 1 , wherein
for internal volumes of flow paths when each of the raw materials finally merge, an internal volume of the flow path for the high-flow-rate raw material is larger than an internal volume of the flow path for the low-flow-rate raw material.

3. The microreactor according to claim 1 , wherein
wherein each of the plurality of second paths are merged into the third flow path at a single intersection.

4. The microreactor according to claim 3 , wherein
at the single intersection, respective second paths merge into the third flow path on both sides of the third flow path.

5. The microreactor according to claim 1 , wherein
wherein each of the plurality of second paths are merged into the third flow path at a single intersection, and
wherein at least one orifice is disposed downstream from the single intersection.

6. The microreactor according to claim 1 , wherein
the plurality of second paths merges stepwise into the third flow path.

7. The microreactor according to claim 6 , wherein
the plurality of second paths alternately merge into the third flow path from different directions.

8. The microreactor according to claim 7 , wherein
the microreactor is configured by two plates,
the flow paths are formed on each of the plates, and
the flow paths are formed such that the plurality of second paths alternately merge with the third flow path from directions of each of the two plates.

9. The microreactor according to claim 1 , wherein
a fourth flow path is disposed downstream from a final merging point of the plurality of paths.

10. The microreactor according to claim 1 , wherein
a material of the microreactor is polymethylpentene or polyethylene.

11. The microreactor according to claim 1 , wherein
a diameter of the flow paths is 2 mm or less.

12. A chemical product manufacturing system, comprising:
at least one microreactor, which includes a plurality of flow paths for a plurality of raw materials with different flow rates to flow therethrough, respectively;

a first introduction port through which a high-flow-rate material is introduced;
a second introduction port through which a low-flow-rate material is introduced;
a first flow path, in communication with the first introduction port, that branches into a plurality of second paths, wherein the plurality of second paths merge downstream; and
a third flow path, in communication with the second introduction port; and
one or more pumps configured to deliver the raw materials to each of the at least one microreactor,
wherein each of the plurality of second paths are merged into the third flow path.

Assignees

• Hitachi Ltd

Inventors

• Asano Yukako
• Oda Masashi

Classifications

• B81C3/00

  Assembling of devices or systems from individually processed components · CPC title

• B81B7/02

  containing distinct electrical or optical devices of particular relevance for their function, e.g. microelectro-mechanical systems [MEMS] (B81B7/04 takes precedence) · CPC title

• B81B1/00

  Devices without movable or flexible elements, e.g. microcapillary devices · CPC title

• B01J19/00

  Chemical, physical or physico-chemical processes in general; Their relevant apparatus · CPC title

• B01J2219/00889

  Mixing · CPC title