CN210410646U - Supergravity external circulation reactor for heterogeneous catalytic reaction - Google Patents
Supergravity external circulation reactor for heterogeneous catalytic reaction Download PDFInfo
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- CN210410646U CN210410646U CN201921203367.8U CN201921203367U CN210410646U CN 210410646 U CN210410646 U CN 210410646U CN 201921203367 U CN201921203367 U CN 201921203367U CN 210410646 U CN210410646 U CN 210410646U
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Abstract
The application discloses a supergravity external circulation reactor for heterogeneous catalytic reaction, which comprises a reactor cavity, a liquid inlet system, a liquid external circulation system and a supergravity dispersion system; the supergravity dispersion system comprises a supergravity rotor and a driving device which are arranged in the reactor cavity; the supergravity rotor comprises a horizontal chassis, wherein a plurality of concentric moving coils with the same height are arranged on the upper surface of the horizontal chassis, a plurality of circular through holes are formed in the annular wall of each moving coil, a gap is reserved between every two adjacent moving coils, an annular packing cavity with an upper opening is formed by enclosing the two adjacent moving coils and the horizontal chassis, a catalyst particle bed layer is filled in each annular packing cavity, and the particle size of catalyst particles is larger than the aperture of the circular through holes; the upper opening of the annular packing chamber is provided with a sealing cover. The device can greatly enhance the mass transfer efficiency of heterogeneous catalytic reaction, can greatly enhance the heterogeneous catalytic reaction such as liquid-solid, gas-liquid-solid and the like, and has low reaction energy consumption.
Description
Technical Field
The present application relates to a supergravity external circulation reactor for heterogeneous catalytic reactions.
Background
Heterogeneous catalytic reactions, also known as heterogeneous reactions, have two or more phases of reactants, such as a solid and a gas, a solid and a liquid, two immiscible liquids, and the like. A central factor affecting the reaction rate of heterogeneously catalyzed reactions is the efficiency of mass transfer between the reactant phases and the phase. Such as the conventional saturated hydrogenation of long-chain olefins, the reaction rate and the final conversion rate of the reaction are determined by whether hydrogen can be sufficiently contacted with liquid olefins.
The most common method for increasing the contact of reactants is mechanical stirring, but due to the limitation of the mechanical stirring, the materials are mixed unevenly at different parts of the reactor, and dead corners or blind areas can exist. And for some materials with higher viscosity or the reaction of which the reactant is in a gas-liquid two-phase state, the mechanical stirring effect is very limited.
The hypergravity reactor is a novel reactor for strengthening chemical industrial processes. The centrifugal force field is used for simulating a hypergravity environment, liquid is sheared and highly dispersed, the mass transfer specific surface area is increased, the liquid surface updating rate is improved, the gas-liquid and liquid-liquid mass transfer processes can be greatly enhanced, and the centrifugal force field is often applied to industrial processes such as rectification, absorption, separation and the like. At present, the main structure of the supergravity reactor is shaped, and the research of internal components becomes the core of development, such as the innovative design of a rotor structure, the optimization of a liquid distributor and the like.
The core part of the hypergravity reactor is a rotor, and the structure and the appearance of the rotor are changed along with the continuous research on the reactor. In order to meet the requirements of different industrial processes, the rotor structure is continuously improved and optimized in the aspects of hydrodynamics, mass transfer mixing efficiency, energy efficiency and the like. From the perspective of the rotor structure of a high-gravity rotating bed, the high-gravity rotating bed can be divided into a packed rotating bed and a non-packed rotating bed. Generally, the filler of the packed rotary bed is generally composed of wire mesh, foamed nickel, foamed ceramic, and the like. The rotor structure of the non-packed rotating bed is special, and generally comprises a column rotating disk and the like, wherein the rotor rotating bed, the baffled rotating bed and the like are typical.
The common circulating pump used in the circulating reaction may wear the circulating pump in the circulating route due to the existence of the suspended solid catalyst in the reactant, which increases the energy consumption and is not favorable for the lasting operation.
SUMMERY OF THE UTILITY MODEL
In view of the above technical problems in the prior art, the present application aims to provide a supergravity external circulation reactor for heterogeneous catalytic reactions.
The hypergravity external circulation reactor for heterogeneous catalytic reaction is characterized in that: comprises a reactor cavity, a liquid inlet system, a liquid external circulation system and a hypergravity dispersion system; the hypergravity dispersion system comprises a hypergravity rotor arranged in the inner part of the reactor cavity body and a driving device for driving the hypergravity rotor to rotate horizontally; the supergravity rotor comprises a horizontal chassis, wherein a plurality of movable coils which are consistent in height and are concentrically arranged are arranged on the upper surface of the horizontal chassis, a plurality of circular through holes are formed in the annular wall of each movable coil, a gap is reserved between every two adjacent movable coils, an annular packing cavity with an upper opening is formed by enclosing the two adjacent movable coils and the horizontal chassis, a catalyst particle bed layer for catalyzing heterogeneous catalytic reaction is filled in each annular packing cavity, and the particle size of catalyst particles is larger than the aperture of the circular through holes; the upper opening of the annular packing cavity is provided with a sealing cover for plugging the annular packing cavity; the liquid inlet system inputs reaction liquid into the reactor cavity, the supergravity dispersion system conveys the reaction liquid deposited at the bottom of the reactor cavity to the innermost moving coil of the supergravity rotor, and the reaction liquid passes through the catalyst particle bed layer to generate heterogeneous catalytic reaction under the horizontal rotation action of the supergravity rotor.
The hypergravity external circulation reactor for heterogeneous catalytic reaction is characterized in that: the driving device comprises a first rotating shaft and a first motor, the lower end of the first rotating shaft penetrates through the top of the reactor cavity and is connected with the reactor cavity in a sealing and rotating mode, the lower end of the first rotating shaft penetrates through the inner side of the innermost moving coil of the supergravity rotor and is fixedly connected with the upper surface of the horizontal chassis, and the upper end of the first rotating shaft is fixedly connected with the first motor.
The hypergravity external circulation reactor for heterogeneous catalytic reaction is characterized in that: the liquid inlet system comprises a high-pressure plunger pump and a first check valve, a liquid outlet of the high-pressure plunger pump is connected with the reactor cavity through the first check valve by a pipeline, and a control valve is arranged on the pipeline between the high-pressure plunger pump and the first check valve.
The hypergravity external circulation reactor for heterogeneous catalytic reaction is characterized in that: a liquid buffer chamber is formed by enclosing the innermost moving coil of the supergravity rotor and the horizontal chassis; the liquid external circulation system comprises a circulating pump and a heat exchanger, a liquid outlet at the bottom of the reactor cavity is communicated with the liquid buffer cavity through the circulating pump and the heat exchanger by pipelines, so that reaction liquid deposited at the bottom of the reactor cavity can flow back to the liquid buffer cavity again.
The hypergravity external circulation reactor for heterogeneous catalytic reaction is characterized in that: still include air intake system, air intake system includes gas steel bottle and second check valve, gas steel bottle's gas outlet is passed through the second check valve and is connected by the pipeline with the reactor cavity, just be provided with the control valve on the pipeline between gas steel bottle and the second check valve.
The hypergravity external circulation reactor for heterogeneous catalytic reaction is characterized in that: a liquid discharge pipe is arranged in the middle of the reactor cavity, and a control valve is arranged on the liquid discharge pipe; and the horizontal elevation of the liquid discharge pipe is slightly lower than that of the horizontal chassis.
The hypergravity external circulation reactor for heterogeneous catalytic reaction is characterized in that: the bottom of the reactor cavity is provided with a temperature detector and a discharging pipe, and the discharging pipe is provided with a control valve; and the top of the reactor cavity is provided with a pressure detector for detecting the internal air pressure of the reactor cavity.
The hypergravity external circulation reactor for heterogeneous catalytic reaction is characterized in that: still include the mixing system, the mixing system includes second motor, second pivot and stirring vane, the reactor cavity bottom is passed and sealed rotation is connected rather than to the upper end of second pivot, stirring vane is fixed to be set up in the upper end of second pivot and to be located the inside lower part of reactor cavity, the lower extreme and the second motor fixed connection of second pivot.
Compared with the prior art, the beneficial effect that this application was got is:
1) the supergravity external circulation reactor overcomes the defects of slow liquid film flowing, small gas-liquid contact specific surface area, relatively low mass transfer efficiency, large equipment volume, low space utilization rate, large occupied area and the like in the traditional heterogeneous catalytic reactor equipment when being applied to gas-liquid-solid heterogeneous catalytic reaction, greatly increases the reaction contact area of gas-liquid two phases in the reaction, and increases the conversion rate of the reaction; compared with the traditional circulating reactor, the loss of a circulating pump is reduced, the energy consumption is low, the pollution is low, the catalyst filled in the annular filler rotor can be recycled, and the process of separating the product from the catalyst can be omitted because the catalyst is filled in the supergravity rotor.
2) The patent provides a hypergravity external circulation reactor, which can greatly enhance the mass transfer efficiency of heterogeneous catalytic reaction, and can greatly enhance the reactions such as liquid-solid, gas-liquid-solid and the like, and concretely comprises reduction reaction, oxidation reaction, neutralization reaction, ester exchange reaction, hydrolysis reaction, hydrogenation reaction and the like.
3) The application discloses hypergravity extrinsic cycle reactor is applied to the heterogeneous catalytic reaction of gas-liquid, and hundreds to thousand times that produce through the high-speed rotatory reaction liquid inside the hypergravity rotor of centrifugal force field in earth gravitational field who produces of hypergravity rotor smashes, what appear when liquid dispersion flies is very tiny liquid drop, liquid silk state, can mix fast with gaseous high efficiency, contact, reaction, and the inside packing layer catalyst of rotor also can fully contact with gas-liquid, improves the conversion rate by a wide margin.
Drawings
FIG. 1 is a schematic diagram of the configuration of a hypergravity external circulation reactor of the present application;
FIG. 2 is a top view of the supergravity rotor of the present application;
in the figure: 1-a pressure detector, 2-a first one-way valve, 3-a control valve, 4-a high-pressure plunger pump, 5-a reactor cavity, 6-a temperature detector, 7-a discharge pipe, 8-a second motor, 9-a stirring blade, 10-a supergravity rotor, 11-a circulating pump, 12-a heat exchanger, 13-a liquid discharge pipe, 14-a first motor, 15-a second one-way valve and a liquid buffer chamber.
Detailed Description
The present invention will be further described with reference to the following specific examples, but the scope of the present invention is not limited thereto.
Example (b): refer to FIGS. 1-2
A hypergravity external circulation reactor for heterogeneous catalytic reaction comprises a reactor cavity 5, a liquid inlet system, a liquid external circulation system and a hypergravity dispersion system; the hypergravity dispersion system comprises a hypergravity rotor 10 arranged in the middle of the inside of the reactor cavity 5 and a driving device for driving the hypergravity rotor 10 to rotate horizontally. Referring to fig. 1, the driving device comprises a first rotating shaft and a first motor 14, wherein the middle part of the first rotating shaft is connected with the top of the reactor cavity 5 in a sealing and rotating manner, the lower part of the first rotating shaft extends into the middle part inside the reactor cavity 5 and is fixedly connected with the supergravity rotor 10, and the upper end of the first rotating shaft is fixedly connected with the first motor 14 positioned right above the reactor cavity 5. The first motor 14 drives the first rotating shaft to rotate, thereby driving the supergravity rotor 10 to rotate horizontally.
Referring to fig. 1, the liquid inlet system includes a high-pressure plunger pump 4 and a first check valve 2, a liquid outlet of the high-pressure plunger pump 4 is connected to a reactor cavity 5 through the first check valve 2 by a pipeline, and a control valve 3 is disposed on the pipeline between the high-pressure plunger pump 4 and the first check valve 2. Under the conveying action of the high-pressure plunger pump 4, reaction liquid can be input into the reactor cavity 5. The first check valve 2 is provided to prevent the reaction liquid from flowing back when a high-pressure gas exists inside the reactor chamber 5.
In order to prevent excessive deposition of reaction liquid at the bottom of the reactor cavity 5 and submerge the supergravity rotor 10, a liquid discharge pipe 13 is arranged in the middle of the reactor cavity 5, and a control valve 3 is arranged on the liquid discharge pipe 13; and the horizontal elevation of the liquid discharge pipe 13 is slightly lower than that of the horizontal chassis.
The utility model provides a hypergravity extrinsic cycle reactor is applied to heterogeneous catalysis reaction such as gas-liquid-solid, and the structure of this application still includes air intake system, air intake system includes gas steel bottle and second check valve 15, gas steel bottle's gas outlet is passed through second check valve 15 and is connected by the tube coupling with reactor cavity 5, just be provided with control valve 3 on the pipeline between gas steel bottle and the second check valve 15.
Referring to fig. 1, a temperature detector 6 and a discharging pipe 7 are arranged at the bottom of the reactor cavity 5, and a control valve is arranged on the discharging pipe 7; the top of the reactor cavity 5 is provided with a pressure detector 1 for detecting the pressure inside the reactor cavity 5. And the reactor cavity 5 is also provided with a vent pipe, and the vent pipe is provided with a vent valve.
In this embodiment, the supergravity rotor 10 includes a horizontal chassis, a plurality of concentric moving rings with the same height are disposed on the upper surface of the horizontal chassis, a plurality of circular through holes are disposed on the ring wall of each moving ring, a gap is left between each two adjacent moving rings, an annular packing chamber with an upper opening is formed by enclosing the two adjacent moving rings and the horizontal chassis, a catalyst particle bed layer for catalyzing heterogeneous catalytic reaction is filled in each annular packing chamber, and the particle size of the catalyst particles is larger than the aperture of the circular through holes; and a sealing cover for plugging the annular packing cavity is arranged at an opening at the upper part of the annular packing cavity.
In comparison to fig. 2, 5 concentric moving coils are provided on the upper surface of the horizontal base plate. A liquid buffer chamber a is formed by enclosing the innermost moving coil and the horizontal chassis, 4 annular spaces are formed between every two adjacent moving coils, and 4 annular packing chambers are formed by enclosing the 4 annular spaces and the horizontal chassis. In order to prevent catalyst particles in the annular packing chambers from being thrown out in the high-speed rotation process of the supergravity rotor 10, the top parts of the 4 annular packing chambers are covered with a sealing cover of an annular structure, the sealing cover seals the upper openings of the 4 annular packing chambers together, and the sealing cover can be directly screwed on the top parts of the 5 concentric moving rings through screws. At this time, the upper portion of the liquid buffer chamber a is still in an open state.
Referring to fig. 1, the lower end of the first rotating shaft penetrates through the inner side of the innermost moving coil of the supergravity rotor 10 and is fixedly connected with the upper surface of the horizontal chassis, so that the supergravity rotor 10 is fixedly disposed at the lower end of the first rotating shaft.
The liquid external circulation system comprises a circulating pump 11 and a heat exchanger 12, a liquid outlet at the bottom of the reactor cavity 5 is communicated with the liquid buffer cavity through the circulating pump 11 and the heat exchanger 12 by pipelines, so that reaction liquid deposited at the bottom of the reactor cavity 5 can flow back to the liquid buffer cavity again. As can be seen from a comparison of fig. 1, the heat exchanger 12 communicates with the liquid buffer chamber via a liquid outlet pipe, the end of which remote from the heat exchanger 12 extends from the upper opening of the liquid buffer chamber into the interior thereof.
The utility model provides a hypergravity extrinsic cycle reactor is applied to liquid-solid heterogeneous catalysis reaction, in order to prevent that the liquid of deposit in reactor cavity 5 bottom from appearing the layering, the structure of this application still includes mixing system, mixing system includes second motor 8, second pivot and stirring vane 9, reactor cavity 5 bottom is passed and sealed rotation is connected rather than to the upper end of second pivot, stirring vane 9 is fixed to be set up in the upper end of second pivot and to be located reactor cavity 5's inside lower part, the lower extreme and the 8 fixed connection of second motor of second pivot.
The application discloses hypergravity extrinsic cycle reactor is at the operation in-process, and the inlet liquor system is with reaction liquid input reactor cavity 5 in, and hypergravity disperse system carries the reaction liquid of deposit in reactor cavity 5 bottom to the inlayer movable coil of hypergravity rotor 10 in, and under the effect of hypergravity rotor 10 horizontal rotation, the reaction liquid passes catalyst particle bed and takes place heterogeneous catalytic reaction.
The supergravity external circulation reactor is applied to gas-liquid-solid heterogeneous catalysis reaction, and the reaction process of the supergravity reactor is as follows:
s1 catalyst loading: the hypergravity rotor 10 is opened and a mass of reaction solid catalyst is charged.
S2 injecting liquid: the control valve 3 is opened and the raw material liquid is fed into the reactor chamber 5 by the high-pressure plunger pump 4.
S3 gas injection: reaction gas is introduced into the reactor cavity 5 through the gas steel cylinder, small-flow gas is introduced firstly for a period of time to discharge air in the reactor cavity 5, reaction gas atmosphere is formed, and the reaction gas is introduced to the required pressure.
S4 start the reaction: and (3) opening the circulating pump 11, then starting the first motor 14, and adjusting the hypergravity rotor 10 to the rotating speed required by the reaction to enable the system to enter a normal reaction stage until the reaction is finished.
S5 end of reaction: after the desired reaction time has been reached, the circulation pump 11 is first switched off so that the liquid in the hypergravity rotor 10 is spun dry sufficiently, and then the first motor 14 is switched off to receive the liquid product via the discharge pipe 7.
In the following example 1, the reactor chamber 5 had an outer diameter of 290mm, an inner diameter of 256mm and a height of 500 mm. The diameters of concentric moving coils of the supergravity rotor are respectively 200mm, 180mm, 160mm, 140mm and 120mm, and the heights of the concentric moving coils are respectively 20 mm. The aperture of the circular through hole on the ring wall of the moving coil is 0.5 mm.
Example 1:
gas-liquid-solid heterogeneous catalysis reaction. 8g of 1wt% Pd/Al are weighed out2O3Catalyst (1 wt% Pd/Al)2O3The catalyst is purchased from Shanxi Kaida chemical industry Limited liability company, the catalyst carrier is alumina pellets, the mass content of the active component Pt is 1%, the actual measurement of the particle size of the catalyst is 1.8-2.2 mm), and the weighed catalyst is filled into a supergravity rotor.
1000g of hexadecene were fed into the reactor chamber with a high-pressure plunger pump. Then, hydrogen is introduced into the reactor cavity through a gas steel cylinder filled with hydrogen, the hydrogen in the reactor cavity is exhausted, and the hydrogen with the pressure of 2.0MPa is filled into the reactor cavity. And starting a circulating pump 11, starting a second motor 8, regulating the rotating speed of the stirring blade 9 to be 1500 r/min, starting a first motor 14, regulating the rotating speed of the supergravity rotor to be 1800r/min, controlling the temperature of the hexadecene liquid to be 200 ℃ through a heat exchanger, and starting reaction. Under the conveying action of the circulating pump 11, hexadecene liquid deposited at the bottom of the reactor cavity is conveyed into the liquid buffer cavity of the supergravity rotor, and under the centrifugal force action formed by rotation of the supergravity rotor, the hexadecene liquid is dispersed to form liquid filaments and is thrown into a catalyst particle bed layer in the annular packing cavity. After the reaction is carried out for 1 hour, the circulating pump 11 and the second motor 8 are firstly closed, and the first motor 14 is closed after the material in the super-gravity rotor is dried. The liquid product is received through a discharge pipe 7. And qualitatively analyzing the product by using GC-MS, and quantitatively analyzing by using a gas chromatograph to calculate the conversion rate of hexadecene and the yield of the target product, namely the n-hexadecane, wherein the conversion rate of the hexadecene is 100 percent, and the yield of the n-hexadecane is 98.4 percent.
The description is given for the sake of illustration only, and should not be construed as limiting the scope of the invention to the particular forms set forth in the examples.
Claims (8)
1. A supergravity external circulation reactor for heterogeneous catalytic reactions, characterized in that: comprises a reactor cavity (5), a liquid inlet system, a liquid external circulation system and a hypergravity dispersion system; the hypergravity dispersion system comprises a hypergravity rotor (10) arranged in the middle of the inside of the reactor cavity (5) and a driving device used for driving the hypergravity rotor (10) to rotate horizontally;
the supergravity rotor (10) comprises a horizontal chassis, wherein a plurality of moving rings which are consistent in height and are concentrically arranged are arranged on the upper surface of the horizontal chassis, a plurality of circular through holes are formed in the ring wall of each moving ring, a gap is reserved between every two adjacent moving rings, an annular packing cavity with an upper opening is formed by enclosing the two adjacent moving rings and the horizontal chassis, a catalyst particle bed layer for catalyzing heterogeneous catalytic reaction is filled in each annular packing cavity, and the particle size of catalyst particles is larger than the aperture of the circular through holes; the upper opening of the annular packing cavity is provided with a sealing cover for plugging the annular packing cavity;
the liquid inlet system inputs reaction liquid into the reactor cavity (5), the supergravity dispersion system conveys the reaction liquid deposited at the bottom of the reactor cavity (5) to the innermost moving coil of the supergravity rotor (10), and the reaction liquid passes through the catalyst particle bed layer to generate heterogeneous catalytic reaction under the horizontal rotation action of the supergravity rotor (10).
2. The supergravity external circulation reactor for heterogeneous catalytic reactions according to claim 1, wherein: the driving device comprises a first rotating shaft and a first motor (14), the lower end of the first rotating shaft penetrates through the top of the reactor cavity (5) and is connected with the reactor cavity in a sealing and rotating mode, the lower end of the first rotating shaft penetrates through the inner side of the innermost moving coil of the supergravity rotor (10) and is fixedly connected with the upper surface of the horizontal chassis, and the upper end of the first rotating shaft is fixedly connected with the first motor (14).
3. The supergravity external circulation reactor for heterogeneous catalytic reactions according to claim 1, wherein: the liquid inlet system comprises a high-pressure plunger pump (4) and a first check valve (2), a liquid outlet of the high-pressure plunger pump (4) is connected with a reactor cavity (5) through the first check valve (2) by a pipeline, and a control valve (3) is arranged on the pipeline between the high-pressure plunger pump (4) and the first check valve (2).
4. The supergravity external circulation reactor for heterogeneous catalytic reactions according to claim 1, wherein: a liquid buffer chamber is formed by enclosing the innermost moving coil of the supergravity rotor (10) and the horizontal chassis; the liquid external circulation system comprises a circulating pump (11) and a heat exchanger (12), a liquid outlet at the bottom of the reactor cavity (5) is communicated with the liquid buffer cavity through the circulating pump (11) and the heat exchanger (12) by pipelines, so that reaction liquid deposited at the bottom of the reactor cavity (5) can flow back to the liquid buffer cavity again.
5. The supergravity external circulation reactor for heterogeneous catalytic reactions according to claim 1, wherein: still include air intake system, air intake system includes gas steel bottle and second check valve (15), gas cylinder's gas outlet is connected by the pipeline through second check valve (15) and reactor cavity (5), just be provided with control valve (3) on the pipeline between gas steel bottle and second check valve (15).
6. The supergravity external circulation reactor for heterogeneous catalytic reactions according to claim 1, wherein: a liquid discharge pipe (13) is arranged in the middle of the reactor cavity (5), and a control valve (3) is arranged on the liquid discharge pipe (13); and the horizontal elevation of the liquid discharge pipe (13) is slightly lower than that of the horizontal chassis.
7. The supergravity external circulation reactor for heterogeneous catalytic reactions according to claim 1, wherein: the bottom of the reactor cavity (5) is provided with a temperature detector (6) and a discharging pipe (7), and the discharging pipe (7) is provided with a control valve; the top of the reactor cavity (5) is provided with a pressure detector (1) for detecting the internal air pressure of the reactor cavity (5).
8. The supergravity external circulation reactor for heterogeneous catalytic reactions according to claim 1, wherein: still include the mixing system, the mixing system includes second motor (8), second pivot and stirring vane (9), reactor cavity (5) bottom is passed and rather than sealed rotation connection in the upper end of second pivot, stirring vane (9) are fixed to be set up in the upper end of second pivot and are located the inside lower part of reactor cavity (5), the lower extreme and second motor (8) fixed connection of second pivot.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110314619A (en) * | 2019-07-29 | 2019-10-11 | 浙江工业大学 | A kind of hypergravity outer circulation reactor for heterogeneous catalytic reaction |
| CN113387858A (en) * | 2021-06-29 | 2021-09-14 | 山东尚舜化工有限公司 | Equipment and method for continuously producing accelerant TMTD |
-
2019
- 2019-07-29 CN CN201921203367.8U patent/CN210410646U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110314619A (en) * | 2019-07-29 | 2019-10-11 | 浙江工业大学 | A kind of hypergravity outer circulation reactor for heterogeneous catalytic reaction |
| CN113387858A (en) * | 2021-06-29 | 2021-09-14 | 山东尚舜化工有限公司 | Equipment and method for continuously producing accelerant TMTD |
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