CN115007066A - Cold hydrogenation reactor - Google Patents
Cold hydrogenation reactor Download PDFInfo
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- CN115007066A CN115007066A CN202210935727.3A CN202210935727A CN115007066A CN 115007066 A CN115007066 A CN 115007066A CN 202210935727 A CN202210935727 A CN 202210935727A CN 115007066 A CN115007066 A CN 115007066A
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- pressure
- inner cylinder
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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
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/04—Pressure vessels, e.g. autoclaves
-
- 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
- B01J19/02—Apparatus characterised by being constructed of material selected for its chemically-resistant properties
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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
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/002—Component parts of these vessels not mentioned in B01J3/004, B01J3/006, B01J3/02 - B01J3/08; Measures taken in conjunction with the process to be carried out, e.g. safety measures
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- 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
- C01B33/1071—Tetrachloride, trichlorosilane or silicochloroform, dichlorosilane, monochlorosilane or mixtures thereof
- C01B33/10742—Tetrachloride, trichlorosilane or silicochloroform, dichlorosilane, monochlorosilane or mixtures thereof prepared by hydrochlorination of silicon or of a silicon-containing material
- C01B33/10757—Tetrachloride, trichlorosilane or silicochloroform, dichlorosilane, monochlorosilane or mixtures thereof prepared by hydrochlorination of silicon or of a silicon-containing material with the preferential formation of trichlorosilane
- C01B33/10763—Tetrachloride, trichlorosilane or silicochloroform, dichlorosilane, monochlorosilane or mixtures thereof prepared by hydrochlorination of silicon or of a silicon-containing material with the preferential formation of trichlorosilane from silicon
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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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/02—Apparatus characterised by their chemically-resistant properties
- B01J2219/025—Apparatus characterised by their chemically-resistant properties characterised by the construction materials of the reactor vessel proper
- B01J2219/0277—Metal based
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
Abstract
The invention discloses a cold hydrogenation reactor, which belongs to the field of polysilicon production equipment, and comprises an inner cylinder for carrying out cold hydrogenation reaction and a pressure-bearing shell covering the outer part of the inner cylinder, wherein a ring cavity filled with balance gas to balance the inner and outer pressure-bearing of the inner cylinder is arranged between the pressure-bearing shell and the inner cylinder; the cyclone separator is characterized by also comprising a gas material inlet which penetrates through the bottom of the pressure-bearing shell and is inserted into the bottom of the inner cylinder, and a material outlet which penetrates through the top of the pressure-bearing shell and is inserted into the top of the inner cylinder, wherein the end part of the material outlet positioned in the inner cylinder is communicated with the cyclone separator; the pressure-bearing shell is provided with an inner cylinder and a pressure-bearing shell, and the pressure-bearing shell is provided with a pressure-bearing outer shell and an inner cylinder, and the pressure-bearing outer shell is provided with a pressure-bearing outer shell, and the pressure-bearing outer shell is inserted into the inner cylinder. The invention reduces the requirements on the material of the cold hydrogenation reactor, ensures that the material of the cold hydrogenation reactor can meet the requirements by adopting common alloy steel, reduces the thickness, and greatly reduces the cost and the processing difficulty of equipment.
Description
Technical Field
The invention relates to polycrystalline silicon production equipment, in particular to a cold hydrogenation reactor.
Background
With the increasingly prominent global warming problem, environmental protection has become a problem which must be faced and solved by countries in the world, and national policies such as carbon neutralization and carbon peak-reaching policy are also put forward in China.
Solar power generation will become the main support for future power supply in various countries of the world due to its environmental protection characteristics. The demand of polycrystalline silicon as a core material of solar power generation is getting larger and larger in the future.
At present, the cold hydrogenation technology is mostly adopted in the domestic polycrystalline silicon process. The principle of the cold hydrogenation technology is as follows: the Trichlorosilane (TCS) is produced by hydrogen, silicon powder, Silicon Tetrachloride (STC) and other raw materials under the conditions of catalyst, high temperature and high pressure.
The cold hydrogenation reactor is the core equipment of the cold hydrogenation technology, and because of high temperature and high pressure hydrogen, the shell of the cold hydrogenation reactor adopts the nickel-based alloy which is high temperature resistant and hydrogen corrosion resistant. With the upsizing of the device, the diameter and the thickness of the cold hydrogenation reactor are larger, and the cost and the processing difficulty are higher.
The cold hydrogenation reactor used in the prior art is a single-layer container, and a container shell simultaneously bears the effects of high temperature, high pressure and a hydrogen environment, so that a thick-wall high-temperature-resistant nickel-based alloy steel plate is required to be adopted for a container shell, the larger the diameter of equipment is, the thicker the thickness of the plate is, the higher the cost of the plate is, the greater the manufacturing and processing difficulty is, the longer the purchase period is, and the large-scale hydrogenation reactor is seriously influenced.
Disclosure of Invention
In view of the foregoing, the present application provides a cold hydrogenation reactor.
The cold hydrogenation reactor comprises an inner cylinder for carrying out cold hydrogenation reaction, and further comprises a pressure-bearing shell covered outside the inner cylinder, wherein a ring cavity filled with balance gas to balance the inner pressure and the outer pressure of the inner cylinder is arranged between the pressure-bearing shell and the inner cylinder.
The cyclone separator is characterized by further comprising a gas material inlet penetrating through the bottom of the pressure-bearing shell and inserted into the bottom of the inner cylinder, and a material outlet penetrating through the top of the pressure-bearing shell and inserted into the top of the inner cylinder, wherein the end part of the material outlet positioned in the inner cylinder is communicated with the cyclone separator.
The pressure-bearing shell is provided with an inner cylinder and a pressure-bearing shell, and the pressure-bearing shell is provided with a pressure-bearing outer shell and an inner cylinder, and the pressure-bearing outer shell is provided with a pressure-bearing outer shell, and the pressure-bearing outer shell is inserted into the inner cylinder.
In the cold hydrogenation reactor, one end of the pressure-bearing shell is communicated with a balance gas inlet for filling balance gas into the annular cavity.
And the other end of the pressure-bearing shell is communicated with a balance gas outlet for discharging balance gas in the annular cavity.
In the cold hydrogenation reactor, the bottom in the pressure-bearing shell is provided with a supporting piece for supporting the inner cylinder.
In the cold hydrogenation reactor, the inner cylinder is sequentially provided with a gas distributor and a distribution plate group in the advancing direction of gas materials.
In the cold hydrogenation reactor, the inner cylinder is made of a metal inner shell composite heat insulation layer.
In the cold hydrogenation reactor of the present invention, the heat insulating layer is attached to the inside of the metal inner shell or externally attached to the outside of the metal inner shell.
In the cold hydrogenation reactor, the silicon powder inlet comprises a silicon powder inlet outer cylinder reinforcing pipe, a silicon powder channel pipe and a silicon powder inlet flexible connecting piece.
The end part of the silica powder inlet outer cylinder reinforcing pipe is welded at a silica powder inlet hole formed in the pressure-bearing shell.
The end part of the silicon powder channel pipe penetrates through the center of the silicon powder inlet outer cylinder reinforcing pipe and is welded at a through hole of the silicon powder inlet formed in the cylinder wall of the inner cylinder.
The other end of the silicon powder channel pipe is connected with the other end of the silicon powder inlet outer cylinder reinforcing pipe through the silicon powder inlet flexible connecting piece.
In the cold hydrogenation reactor, the material outlet comprises a material outlet reinforcing pipe, a material outlet channel pipe, a flexible connecting piece and a material outlet outer pipe.
The front end of the material outlet reinforcing pipe penetrates through a material outlet hole formed in the pressure-bearing shell, and the outer wall of the material outlet reinforcing pipe is welded at the material outlet hole.
The front end of the material outlet outer pipe is welded to a material outlet outer pipe hole formed in the inner barrel, and the rear end of the material outlet outer pipe is connected to the front end of the material outlet reinforcing pipe through the flexible connecting piece.
The material outlet channel pipe is externally coated with a heat insulation layer, and the front end of the material outlet channel pipe penetrates through the material outlet reinforcing pipe, the flexible connecting piece and the material outlet outer pipe in sequence and then is connected with the cyclone separator.
In the cold hydrogenation reactor, the balance gas is cold hydrogen before heating in the system.
The cold hydrogenation reactor adopts a double-layer jacket type structure, separates the high-temperature and high-pressure working condition of the cold hydrogenation reactor, enables the inner cylinder subjected to hydrogenation reaction to bear the high-temperature working condition, and enables the pressure-bearing shell to bear pressure only, thereby reducing the requirement on the material of the cold hydrogenation reactor, enabling the material of the cold hydrogenation reactor to adopt common alloy steel to meet the requirement, reducing the thickness, and greatly reducing the cost and the processing difficulty of equipment.
Drawings
In order to more clearly illustrate the technical solutions of the present application, embodiments of the present application will be further illustrated and described with reference to the following drawings, which are only intended to more conveniently and specifically describe embodiments of the present application and not to limit the present application.
FIG. 1 is a schematic diagram of the structure of a cold hydrogenation reactor according to the present invention.
FIG. 2 is an enlarged schematic view of the structure at A in the cold hydrogenation reactor of the present invention.
FIG. 3 is an enlarged schematic view of the structure at B in the cold hydrogenation reactor according to the present invention.
FIG. 4 is an enlarged schematic view of the structure at C in the cold hydrogenation reactor according to the present invention.
Detailed Description
As shown in fig. 1, 2, 3 and 4, the cold hydrogenation reactor of the present invention includes an inner tube 4 for performing a cold hydrogenation reaction, and further includes a pressure-bearing housing 2 covering the outer surface of the inner tube 4.
The inner cylinder 4 is a high-temperature reaction area of the reactor, bears high temperature and hydrogen corrosion, is a metal inner shell formed by welding stainless steel or other high-temperature-resistant alloy materials in a rolling mode, and is further compounded with a heat insulation layer 19. The insulation layer 19 can be either internally attached to the inner metal shell or externally attached to the inner metal shell. The thermal insulation layer 19 can be made of aerogel or other thermal insulation materials. The insulating layer 19 can ensure that the heat carried by the high-temperature gas entering the metal inner shell is not leaked out.
In order to stably arrange the inner cylinder 4, a support member 12, such as an ear seat, a leg, etc., for supporting the inner cylinder 4 may be further provided at the bottom inside the pressure-bearing housing 2. Thus, the thermal expansion direction of the inner cylinder 4 is ensured to be from bottom to top, and the device is also beneficial to feeding silicon powder at the lower part of the cold hydrogenation reactor.
The inner cylinder 4 is also provided with a gas distributor 3 and a distribution plate group 5 in sequence in the advancing direction of the gas material. Namely, the gas material entering the inner cylinder 4 is uniformly mixed by the gas distributor 3, then flows through the distribution plate group 5 together with the silicon powder to react, and is discharged after the reaction. The distribution plate group 5 may be formed by a plurality of distribution plates arranged in parallel at a predetermined interval, and in this embodiment, three distribution plates are used to form the distribution plate group 5.
And a ring cavity 6 filled with balance gas to balance the internal and external pressure bearing of the inner cylinder 4 is arranged between the pressure bearing shell 2 and the inner cylinder 4. The pressure-bearing shell 2 is a pressure-bearing part of the cold hydrogenation reactor, only bears high pressure, and is a closed container formed by rolling and welding metal materials such as common carbon steel or low alloy steel. One end of the pressure-bearing shell 2 is communicated with a balance gas inlet 11 for filling balance gas into the annular cavity 6, the other end of the pressure-bearing shell 2 is communicated with a balance gas outlet 9 for discharging the balance gas in the annular cavity 6, and the balance gas can adopt cold hydrogen or other gases before heating in the system.
That is, it is only necessary for the inner tube 4 to withstand a high temperature working environment and not a high pressure. Therefore, balance gas is introduced into the annular cavity 6, and the pressure of the balance gas on the outer wall of the inner barrel 4 is offset with the pressure born by the inner wall of the inner barrel 4, so that the pressure balance between the inside and the outside of the inner barrel 4 is achieved, and the effect that the inner barrel 4 does not need to bear a high-pressure working environment is achieved. For the pressure-bearing shell 2, the pressure of the balance gas in the annular cavity 6 on the inner wall of the pressure-bearing shell 2 is far larger than the pressure of the external environment on the outer wall of the pressure-bearing shell 2, and meanwhile, the pressure-bearing shell 2 does not need to bear a high-temperature working environment due to the heat insulation effect of the inner cylinder 4, so that the pressure-bearing shell 2 only needs to bear high pressure.
The cold hydrogenation reactor adopts a double-layer jacketed structure, separates the high-temperature and high-pressure working condition of the cold hydrogenation reactor, enables the inner cylinder 4 subjected to hydrogenation reaction to bear the high-temperature working condition, and the pressure-bearing shell 2 only bears pressure, so that the requirement on the material of the cold hydrogenation reactor is reduced, the material of the cold hydrogenation reactor can meet the requirement by common alloy steel, the thickness is reduced, and the cost and the processing difficulty of equipment are greatly reduced.
The cold hydrogenation reactor also comprises a gas material inlet 1 penetrating through the bottom of the pressure-bearing shell 2 and inserted into the bottom of the inner cylinder 4, and a material outlet 8 penetrating through the top of the pressure-bearing shell 2 and inserted into the top of the inner cylinder 4, wherein the end part of the material outlet 8 positioned in the inner cylinder 4 is communicated with a cyclone separator 7, and gas materials after reaction in the inner cylinder 4 pass through the cyclone separator 7 to separate most of solid silicon powder and catalyst and then are discharged out of the cold hydrogenation reactor. In a specific manufacturing process, the material outlet 8 can be symmetrically arranged in plurality. As shown in fig. 3 and 4, the material outlet 8 includes a material outlet reinforcing pipe 801, a material outlet passage pipe 804, a flexible connecting member 802, and a material outlet outer pipe 803. The front end of the material outlet reinforcing pipe 801 penetrates through the material outlet hole 202 formed in the pressure-bearing shell 2, and the outer wall of the material outlet reinforcing pipe 801 is welded at the material outlet hole 202. The front end of the material outlet outer pipe 803 is welded to the material outlet outer pipe hole 412 formed in the inner cylinder 4, and the rear end of the material outlet outer pipe 803 is connected to the front end of the material outlet reinforcing pipe 801 through the flexible connecting piece 802. The material outlet passage pipe 804 is externally coated with a heat insulation layer 805 to prevent an external structural member from being over-heated, and the front end of the material outlet passage pipe sequentially penetrates through the material outlet reinforcing pipe 801, the flexible connecting piece 802 and the material outlet outer pipe 803 and then is connected with the cyclone separator 7.
The flexible connection member 802 provided here can absorb the thermal expansion difference between the inner cylinder 4 and the pressure-bearing housing 2, and since the material outlet passage pipe 804 is fixed to the material outlet reinforcing pipe 801 only by the rear end and the front end thereof is not welded to the inner cylinder 4, the flexible connection member 802 can freely expand.
The cold hydrogenation reactor of the present invention further comprises a silicon powder inlet 10 for supplementing silicon powder to the inner cylinder 4. As shown in fig. 2, the silicon powder inlet 10 penetrates through the lower portion of the pressure-bearing housing 2 and is inserted into the lower portion of the inner tube 4. Specifically, the silicon powder inlet 10 includes a silicon powder inlet outer cylinder reinforcing pipe 113, a silicon powder passage pipe 112, and a silicon powder inlet flexible coupling 111. The end of the silicon powder inlet outer cylinder reinforcing pipe 113 is welded to a silicon powder inlet hole 201 formed in the pressure-bearing shell 2. The end of the silicon powder channel tube 112 passes through the center of the silicon powder inlet outer cylinder reinforcing tube 113 and is welded to the silicon powder inlet through hole 411 formed in the cylinder wall of the inner cylinder 4. The other end of the silicon powder channel pipe 112 is connected with the other end of the silicon powder inlet outer cylinder reinforcing pipe 113 through the silicon powder inlet flexible connecting piece 111. In consideration of the abrasion of silicon powder, in practical application, the silicon powder passage pipe 112 generally takes the form of a smooth wear-resistant light pipe, and the silicon powder inlet flexible connecting piece 111 mainly solves the problem of thermal stress between the silicon powder inlet outer cylinder reinforcing pipe 113 and the silicon powder passage pipe 112.
It should be noted that in the context of the present application, the "left end" and "right end" of each connecting rod refer to relative positions, which are defined only for the convenience of describing the present application and should not be considered as limiting the present application. When the relative position changes, the original "left end" can be considered as the "right end", while the original "right end" can be considered as the "left end".
Numerous specific examples are provided in the embodiments provided herein, it being understood that these examples are for purposes of illustrating the embodiments of the present application in detail and are not intended to be limiting of the present application. Embodiments in the present application may be practiced without these specific examples. Structures and/or techniques that are well known to those of ordinary skill in the art have not been shown in detail in some implementations in order not to obscure the understanding of this application.
While preferred embodiments of the present application have been shown and described herein, it will be readily understood by those skilled in the art that these embodiments are provided by way of example only. Numerous variations, changes, and substitutions will now occur to those skilled in the art without departing from the application. It should be understood that various alternatives to the embodiments of the application described herein may be optionally employed in practicing the application. It is intended that the scope of the application be defined by the claims and that structures within the scope of these claims and their equivalents be covered thereby.
Claims (9)
1. A cold hydrogenation reactor comprises an inner cylinder for carrying out cold hydrogenation reaction, and is characterized by also comprising a pressure-bearing shell covered outside the inner cylinder, wherein a ring cavity filled with balance gas to balance the internal and external pressure-bearing of the inner cylinder is arranged between the pressure-bearing shell and the inner cylinder;
the cyclone separator is characterized by also comprising a gas material inlet which penetrates through the bottom of the pressure-bearing shell and is inserted into the bottom of the inner cylinder, and a material outlet which penetrates through the top of the pressure-bearing shell and is inserted into the top of the inner cylinder, wherein the end part of the material outlet positioned in the inner cylinder is communicated with the cyclone separator;
the pressure-bearing shell is provided with an inner cylinder and a pressure-bearing shell, and the pressure-bearing shell is provided with a pressure-bearing outer shell and an inner cylinder, and the pressure-bearing outer shell is provided with a pressure-bearing outer shell, and the pressure-bearing outer shell is inserted into the inner cylinder.
2. The cold hydrogenation reactor as claimed in claim 1, wherein one end of the pressure-bearing shell is communicated with a balance gas inlet for charging balance gas into the annular cavity;
and the other end of the pressure-bearing shell is communicated with a balance gas outlet for discharging balance gas in the annular cavity.
3. The cold hydrogenation reactor as claimed in claim 1, wherein the pressure-containing shell is provided at the bottom thereof with a support member for supporting the inner tube.
4. A cold hydrogenation reactor as claimed in claim 1 wherein the inner cylinder is provided with gas distributors and distribution plate groups in succession in the direction of travel of the gaseous material.
5. The cold hydrogenation reactor as claimed in claim 1, wherein the inner cylinder is made of a metal inner shell composite insulation layer.
6. The cold hydrogenation reactor as claimed in claim 5, wherein the thermal insulation layer is attached to the inside of the inner metal shell or is externally coated on the outside of the inner metal shell.
7. The cold hydrogenation reactor of claim 1, wherein the silicon powder inlet comprises a silicon powder inlet outer cylinder reinforcement tube, a silicon powder passage tube, and a silicon powder inlet flexible connector;
the end part of the silica powder inlet outer cylinder reinforcing pipe is welded at a silica powder inlet hole formed in the pressure-bearing shell;
the end part of the silicon powder channel pipe penetrates through the center of the silicon powder inlet outer cylinder reinforcing pipe and is welded at a silicon powder inlet through hole formed in the cylinder wall of the inner cylinder;
the other end of the silicon powder channel pipe is connected with the other end of the silicon powder inlet outer cylinder reinforcing pipe through the silicon powder inlet flexible connecting piece.
8. The cold hydrogenation reactor of claim 1, wherein the feed outlet comprises a feed outlet reinforcement tube, a feed outlet passage tube, a flexible connection, and a feed outlet outer tube;
the front end of the material outlet reinforcing pipe penetrates through a material outlet hole formed in the pressure-bearing shell, and the outer wall of the material outlet reinforcing pipe is welded at the material outlet hole;
the front end of the material outlet outer pipe is welded to a material outlet outer pipe hole formed in the inner cylinder, and the rear end of the material outlet outer pipe is connected to the front end of the material outlet reinforcing pipe through the flexible connecting piece;
the material outlet channel pipe is externally coated with a heat insulation layer, and the front end of the material outlet channel pipe penetrates through the material outlet reinforcing pipe, the flexible connecting piece and the material outlet outer pipe in sequence and then is connected with the cyclone separator.
9. The cold hydrogenation reactor of claim 1, wherein the balance gas is cold hydrogen gas prior to heating in the system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210935727.3A CN115007066A (en) | 2022-08-05 | 2022-08-05 | Cold hydrogenation reactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210935727.3A CN115007066A (en) | 2022-08-05 | 2022-08-05 | Cold hydrogenation reactor |
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| CN115007066A true CN115007066A (en) | 2022-09-06 |
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| CN202210935727.3A Pending CN115007066A (en) | 2022-08-05 | 2022-08-05 | Cold hydrogenation reactor |
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| CN208990779U (en) * | 2018-08-09 | 2019-06-18 | 华陆工程科技有限责任公司 | A kind of section is round outside but spuare inside shell and tube reactor |
| CN108953823A (en) * | 2018-09-19 | 2018-12-07 | 张化机（苏州）重装有限公司 | The structure of the import or export of vertical water cold methanol synthetic tower cooling tube |
| CN209631188U (en) * | 2018-12-12 | 2019-11-15 | 华南理工大学 | A kind of multi-functional adiabatic reaction kettle for gas hydrates simulation exploitation |
| CN211754774U (en) * | 2019-12-13 | 2020-10-27 | 内蒙古兴洋科技有限公司 | Silicon tetrachloride hydrogenation reactor |
| CN213913816U (en) * | 2020-12-04 | 2021-08-10 | 中国成达工程有限公司 | Telescopic high-pressure sealing connection structure suitable for vertical radial flow reactor and reactor |
| CN214270213U (en) * | 2020-12-18 | 2021-09-24 | 浙江高成绿能科技有限公司 | Hydrogen production reactor |
| CN215196829U (en) * | 2021-04-16 | 2021-12-17 | 江苏金峰轻工装备有限公司 | Ruthenium carbonyl metal catalyst high-pressure reaction kettle |
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