CN112237892A - Novel filler microchannel reaction device - Google Patents
Novel filler microchannel reaction device Download PDFInfo
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- CN112237892A CN112237892A CN202011111360.0A CN202011111360A CN112237892A CN 112237892 A CN112237892 A CN 112237892A CN 202011111360 A CN202011111360 A CN 202011111360A CN 112237892 A CN112237892 A CN 112237892A
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- reactor
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- structural
- silk
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 47
- 239000000945 filler Substances 0.000 title claims description 8
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 claims description 18
- 239000005049 silicon tetrachloride Substances 0.000 claims description 18
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 12
- 239000000460 chlorine Substances 0.000 claims description 12
- 229910052801 chlorine Inorganic materials 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000012856 packing Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 7
- 239000013307 optical fiber Substances 0.000 description 6
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- 229920005372 Plexiglas® Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- YGZSVWMBUCGDCV-UHFFFAOYSA-N chloro(methyl)silane Chemical compound C[SiH2]Cl YGZSVWMBUCGDCV-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 description 1
- 239000005052 trichlorosilane Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0093—Microreactors, e.g. miniaturised or microfabricated reactors
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/08—Compounds containing halogen
- C01B33/107—Halogenated silanes
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention provides a novel packing microchannel reaction device, which comprises a reactor, wherein the reactor comprises a reactor inlet, a reaction cabin connected with the reactor inlet, and a reactor outlet connected with the reaction cabin, the reaction cabin comprises a structural chamber, a baffle plate and a silk screen are arranged in the structural chamber, the baffle plate is used for increasing the turbulent kinetic energy of the reactor, and the silk screen is used for cutting and crushing bubbles formed in the reaction chamber, so that the silk screen arranged in the structural chamber can not only provide higher turbulent kinetic energy, but also reduce the generation and existence of large bubbles, increase the gas-liquid contact area, and be favorable for the proceeding and the efficiency of chemical reaction.
Description
Technical Field
The invention relates to the field of preparation of PCVD-level optical fiber silicon tetrachloride, in particular to a novel filler microchannel reaction device.
Background
The photochemical reactor is a key core device for preparing PCVD-level optical fiber silicon tetrachloride, and a microchannel photochemical reactor is usually adopted, so that the unique heart-shaped structural design of the microchannel photochemical reactor is adopted, the high-efficiency heat transfer and mass transfer are ensured, and the photochemical reactor has good use flexibility.
However, long-term operation of the reactor will gradually accumulate gas in each core structure to form bubbles, and the bubbles will increase with time.
Therefore, there is a need for a novel packed microchannel reactor device that can inhibit the formation of large bubbles.
Disclosure of Invention
In view of the above problems, the present invention provides a novel packed microchannel reactor to solve the problems that the gas is gradually accumulated in each core structure to form bubbles and the bubbles are increased along with the time when the reactor is operated for a long time.
The novel filler microchannel reaction device provided by the invention comprises a reactor,
the reactor is used for carrying out a photochlorination reaction;
the reactor comprises a reactor inlet, a reaction chamber connected with the reactor inlet, and a reactor outlet connected with the reaction chamber, wherein,
the reaction chamber comprises a structural chamber; and,
a baffle plate and a silk screen are arranged in the structural chamber; wherein,
the baffle is used for increasing the turbulent kinetic energy of the reactor;
the silk screen is used for cutting and breaking the bubbles formed in the reaction chamber.
Preferably, the inlet of the reactor is connected with a silicon tetrachloride raw material tank and a chlorine storage tank; wherein,
the silicon tetrachloride raw material tank is used for storing a silicon tetrachloride raw material;
the chlorine storage tank is used for storing high-purity chlorine.
Preferably, the outlet of the reactor is connected with a stripping tower, and the stripping tower is used for removing gas from the reacted material discharged from the outlet of the reactor.
Preferably, the reaction chamber comprises at least two structural chambers;
the structural chambers are connected in series through connecting pipes.
Preferably, the structural chamber is a heart-shaped structural chamber.
Preferably, the baffle is a U-shaped plexiglass baffle.
Preferably, the wire mesh is disposed at a rear end of the U-shaped baffle.
Preferably, the wire mesh is plexiglass wire or stainless steel wire; and the diameter of the organic glass wire or the stainless steel wire is 0.1-0.6 mm.
Preferably, the wire mesh is in the shape of a wire cake.
Preferably, said structural chamber comprises at least one wire mesh;
if the number of the silk screens is more than one, the silk screens are arranged in the structural chamber side by side, and the distance between every two rows of the silk screens is 0.6-2 mm.
According to the technical scheme, the novel filler microchannel reaction device comprises a reactor, wherein the reactor is used for carrying out a photochlorination reaction; the reactor includes reactor entry, the reaction cabin of connecting the reactor entry, the reactor export of connecting the reaction cabin, and the reaction cabin includes the structure room, is provided with baffle, silk screen in the structure room, and this baffle is used for increasing the turbulent kinetic energy of reactor, this silk screen are used for right the bubble that forms in the reaction room cuts and the breakage, not only can provide higher turbulent kinetic energy through set up the silk in the structure room, can also reduce the production and the existence of big bubble, increase gas-liquid area of contact to be favorable to going on and efficiency of chemical reaction.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following specification taken in conjunction with the accompanying drawings. In the drawings:
FIG. 1 is a schematic view of a novel packed microchannel reactor apparatus according to an embodiment of the invention;
wherein the reference numerals include: 1. reactor inlet, 2, reactor outlet, 3, connecting pipe, 4, structure chamber, 5, baffle, 6, silk screen.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
When a conventional reactor is operated for a long time, gas is gradually accumulated in each core structure of the reactor to form bubbles, and the bubbles increase with time.
Aiming at the problems, the invention provides a novel filler microchannel reaction device, which reduces the generation and existence of large bubbles, increases the gas-liquid contact area and improves the efficiency of chemical reaction.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
To illustrate the novel packed microchannel reactor apparatus provided by the present invention, fig. 1 is a schematic diagram of the novel packed microchannel reactor apparatus according to an embodiment of the present invention.
As shown in fig. 1, the novel packing microchannel reactor provided by the present invention comprises a reactor, the reactor is used for performing a photochlorination reaction, the reactor comprises a reactor inlet 1, a reaction chamber connected to the reactor inlet 1, and a reactor outlet 2 connected to the reaction chamber, wherein the reaction chamber comprises a structure chamber 4, in this embodiment, the reaction chamber comprises at least two structure chambers 4, each structure chamber 4 is connected in series through a connecting pipe 3, the specific representation form of the structure chamber is not particularly limited, in this embodiment, the structure chamber 4 is a heart-shaped structure chamber, that is, as shown in fig. 1, the cross section of the structure chamber is heart-shaped, and the shape of the whole structure chamber is heart-shaped.
In the embodiment shown in fig. 1, a baffle 5 and a wire mesh 6 are arranged in the structural chamber 4, the baffle 5 is used for increasing the turbulent kinetic energy of the reactor, the wire mesh 6 is used for cutting and breaking bubbles formed in the reactor, and therefore, the problems that the existing reactor gradually accumulates gas in each heart-shaped structure of the reactor to form bubbles and the bubbles are increased along with the time if the existing reactor runs for a long time are overcome.
In the embodiment shown in fig. 1, the reactor is connected with a silicon tetrachloride raw material tank (not shown in the figure) and a chlorine storage tank (not shown in the figure); the specific connection mode and the connection position are not particularly limited, in this embodiment, the inlet 1 of the reactor is connected with a silicon tetrachloride raw material tank and a chlorine storage tank, the silicon tetrachloride raw material tank is used for storing a silicon tetrachloride raw material, the silicon tetrachloride raw material is OVD-level optical fiber silicon tetrachloride, and the chlorine storage tank is used for storing high-purity chlorine, so that the OVD-level optical fiber silicon tetrachloride and the chlorine in the chlorine storage tank react with trichlorosilane and other methyl chlorosilane in the silicon tetrachloride in the reactor under the irradiation of ultraviolet light.
In the embodiment shown in fig. 1, the reactor is connected to a stripping tower (not shown in the figure), and the specific connection position and connection mode are not particularly limited, in this embodiment, the reactor outlet 2 is connected to a stripping tower, and the stripping tower is used for removing gas from reacted materials discharged from the reactor, that is, hydrogen chloride gas and unreacted chlorine gas generated by the reaction are removed by introducing high-purity nitrogen gas into the bottom of the stripping tower, then the materials are taken out from the bottom of the stripping tower, and are placed into a rectifying tower for lightness and weight removal, and then PCVD-grade optical fiber silicon tetrachloride is taken out from the top of the rectifying tower, so as to complete the preparation of PCVD-grade optical fiber silicon tetrachloride products.
In the embodiment shown in fig. 1, the material and type of the baffle 5 are not specifically limited, in this embodiment, the baffle 5 is a U-shaped baffle, and is an organic glass baffle, so as to better increase the turbulent kinetic energy of the reactor, in this embodiment, the silk screen 6 is disposed at the rear end of the U-shaped baffle, thereby not only increasing the turbulent kinetic energy of the microreactor, but also continuously cutting and breaking the formed bubbles, avoiding the formation of large bubbles, and simultaneously increasing the gas-liquid contact area and increasing the chemical reaction rate.
In the embodiment shown in fig. 1, the specific representation form of the silk screen 6 is not specifically limited, and may be a side-by-side type silk screen, or a single silk screen with a certain thickness, and a hard silk-like object similar to hair can form a silk screen in a disc-like cake shape, or nets can be arranged side by side, in this embodiment, a silk screen in a disc-like cake shape is adopted, at least one silk screen is included in the structural chamber 4, if the number of the silk screens is more than one, the silk screens 6 are arranged side by side in the structural chamber, and the distance between every two rows of silk screens 6 is 0.6-2mm, and every row of silk screens is formed by alternately and alternately coiling hard silk-like objects similar to hair, which are not specifically limited, in this embodiment, organic glass silk or stainless steel silk; and the diameter of the organic glass wire or the stainless steel wire is 0.1-0.6mm, so that the organic glass wire or the stainless steel wire forms a wire cake shape, namely a small steel wire ball shape, so that the whole wire mesh 6 has a powerful bubble cutting function, and a certain porosity can be ensured at the same time, in the embodiment, the porosity is 20%, namely the mesh area/total area is 20%, so that the reaction materials can smoothly flow through the structural chamber provided with the wire mesh while the cutting bubbles are ensured.
According to the embodiment, the novel filler microchannel reaction device provided by the invention comprises a reactor, wherein the reactor is used for carrying out a photochlorination reaction; the reactor includes reactor entry, the reaction cabin of connecting the reactor entry, the reactor export of connecting the reaction cabin, and the reaction cabin includes the structure room, is provided with baffle, silk screen in the structure room, and this baffle is used for increasing the turbulent kinetic energy of reactor, this silk screen are used for right the bubble that forms in the reaction room cuts and the breakage, not only can provide higher turbulent kinetic energy through set up the silk screen in the structure room, can also reduce the production and the existence of big bubble, increase gas-liquid area of contact to be favorable to going on and efficiency of chemical reaction.
An alternative energy dissipating orifice model test rig in accordance with the present invention is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the alternative energy dissipating orifice model test rig set forth above without departing from the teachings of the present invention. Therefore, the scope of the present invention should be determined by the contents of the appended claims.
Claims (10)
1. A novel filler microchannel reaction device is characterized by comprising a reactor,
the reactor is used for carrying out a photochlorination reaction;
the reactor comprises a reactor inlet, a reaction chamber connected with the reactor inlet, and a reactor outlet connected with the reaction chamber, wherein,
the reaction chamber comprises a structural chamber; and,
a baffle plate and a silk screen are arranged in the structural chamber; wherein,
the baffle is used for increasing the turbulent kinetic energy of the reactor;
the silk screen is used for cutting and breaking the bubbles formed in the reaction chamber.
2. The novel packed microchannel reactor of claim 1,
the inlet of the reactor is connected with a silicon tetrachloride raw material tank and a chlorine storage tank; wherein,
the silicon tetrachloride raw material tank is used for storing a silicon tetrachloride raw material;
the chlorine storage tank is used for storing high-purity chlorine.
3. The novel packed microchannel reactor of claim 2,
and the outlet of the reactor is connected with a stripping tower, and the stripping tower is used for removing gas from the reacted materials discharged from the outlet of the reactor.
4. The novel packed microchannel reactor of claim 1,
the reaction chamber comprises at least two structural chambers;
the structural chambers are connected in series through connecting pipes.
5. The novel packed microchannel reactor of claim 4,
the structural chamber is a heart-shaped structural chamber.
6. The novel packed microchannel reactor of claim 1,
the baffle is U type organic glass baffle.
7. The novel packed microchannel reactor of claim 6,
the silk screen is arranged at the rear end of the U-shaped baffle.
8. The novel packed microchannel reactor of claim 7,
the silk screen is an organic glass silk or a stainless steel wire; and the diameter of the organic glass wire or the stainless steel wire is 0.1-0.6 mm.
9. A novel packed microchannel reactor device according to claim 7 or 8,
the silk screen is in a disc silk cake shape.
10. The novel packed microchannel reactor of claim 1,
the structural chamber comprises at least one wire mesh;
if the number of the silk screens is more than one, the silk screens are arranged in the structural chamber side by side, and the distance between every two rows of the silk screens is 0.6-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011111360.0A CN112237892A (en) | 2020-10-16 | 2020-10-16 | Novel filler microchannel reaction device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011111360.0A CN112237892A (en) | 2020-10-16 | 2020-10-16 | Novel filler microchannel reaction device |
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| CN112237892A true CN112237892A (en) | 2021-01-19 |
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| CN202011111360.0A Pending CN112237892A (en) | 2020-10-16 | 2020-10-16 | Novel filler microchannel reaction device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115594563A (en) * | 2022-12-15 | 2023-01-13 | 山东道可化学有限公司（Cn） | Method for preparing o-chlorotrifluoromethane by micro-reaction continuous photocatalysis of o-chlorotoluene |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020119079A1 (en) * | 1999-12-10 | 2002-08-29 | Norbert Breuer | Chemical microreactor and microreactor made by process |
| CN201618531U (en) * | 2009-12-03 | 2010-11-03 | 中国石油天然气股份有限公司 | Tubular stainless steel wire ball micro-mixer |
| CN203750478U (en) * | 2014-03-27 | 2014-08-06 | 浙江衢州万能达科技有限公司 | Micro-channel oil-water mixing device |
| CN106379902A (en) * | 2016-10-09 | 2017-02-08 | 洛阳中硅高科技有限公司 | Preparation method of ultra-high-purity silicon tetrachloride |
| CN107051346A (en) * | 2017-06-02 | 2017-08-18 | 中山致安化工科技有限公司 | Micro-channel reactor |
| CN109647307A (en) * | 2019-01-28 | 2019-04-19 | 北京理工大学 | Y type combined micro-channel structure |
| CN214020717U (en) * | 2020-10-16 | 2021-08-24 | 中国恩菲工程技术有限公司 | Novel filler microchannel reaction device |
-
2020
- 2020-10-16 CN CN202011111360.0A patent/CN112237892A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020119079A1 (en) * | 1999-12-10 | 2002-08-29 | Norbert Breuer | Chemical microreactor and microreactor made by process |
| CN201618531U (en) * | 2009-12-03 | 2010-11-03 | 中国石油天然气股份有限公司 | Tubular stainless steel wire ball micro-mixer |
| CN203750478U (en) * | 2014-03-27 | 2014-08-06 | 浙江衢州万能达科技有限公司 | Micro-channel oil-water mixing device |
| CN106379902A (en) * | 2016-10-09 | 2017-02-08 | 洛阳中硅高科技有限公司 | Preparation method of ultra-high-purity silicon tetrachloride |
| CN107051346A (en) * | 2017-06-02 | 2017-08-18 | 中山致安化工科技有限公司 | Micro-channel reactor |
| CN109647307A (en) * | 2019-01-28 | 2019-04-19 | 北京理工大学 | Y type combined micro-channel structure |
| CN214020717U (en) * | 2020-10-16 | 2021-08-24 | 中国恩菲工程技术有限公司 | Novel filler microchannel reaction device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115594563A (en) * | 2022-12-15 | 2023-01-13 | 山东道可化学有限公司（Cn） | Method for preparing o-chlorotrifluoromethane by micro-reaction continuous photocatalysis of o-chlorotoluene |
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