CN110882673A - Chemical reaction method and device based on impinging stream - Google Patents
Chemical reaction method and device based on impinging stream Download PDFInfo
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- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/26—Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
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- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
- B01J8/004—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor by means of a nozzle
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- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
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Abstract
The invention discloses a chemical reaction method and a device based on impinging stream, wherein the chemical reaction method is to cause raw materials moving at high speed to impinge oppositely at high speed in an impinging stream reactor to generate chemical reaction. The invention creatively leads the raw materials moving at high speed to generate high-speed opposite impact in the impact flow reactor, namely, the kinetic energy of the raw materials can be utilized to instantly finish the chemical reaction, thereby obviously improving the chemical reaction rate, being easy to realize and simple to operate, realizing the obvious improvement of the reaction rate without high temperature and high concentration, saving energy consumption and not influencing the selectivity of the reaction.
Description
Technical Field
The invention relates to a chemical reaction method and a device, in particular to a chemical reaction method and a device based on impinging stream, belonging to the technical field of chemical reaction.
Background
The chemical reaction refers to a process of breaking molecules into atoms, rearranging and combining the atoms to generate a new substance, and various products (such as chemicals, fuels, medicines, macromolecules and the like) can be prepared through the chemical reaction. Chemical reactions are almost ubiquitous, for example: various chemical reactions are filled in the industries of chemistry, chemical engineering, energy, medicine, environmental protection, metallurgy and the like.
For most chemical reactions, it is generally desirable to have a higher selectivity to increase the utilization of the feedstock while also having a faster reaction rate. The current increase in reaction rates is achieved primarily by increasing reactant concentrations, increasing reaction temperatures, and using catalysts.
The method of increasing the concentration of the reactant is a more common method of increasing the reaction rate, increasing the concentration of the reactant can increase the collision frequency between the reactant molecules, according to the collision theory of chemical reaction, the collision and contact of the reactant molecules is a prerequisite condition for the chemical reaction, and for the chemical reaction to occur, the reactant molecules must be contacted and collided, so increasing the concentration of the reactant is beneficial to increasing the reaction rate, but for the chemical reaction, the chemical reaction concentration usually needs to be kept within a certain range to have better selectivity, and if the concentration of the reactant is too high, the adverse effect on the selectivity of the chemical reaction is difficult to avoid.
The method for increasing the reaction temperature is the most direct method for increasing the reaction rate at present, according to the chemical reaction collision theory, the collision contact of reactant molecules is a prerequisite condition for the chemical reaction to occur, but the reaction can not be caused by each collision, and the two conditions must be met when effective collision occurs: (1) energy factor, i.e. the energy of the reactant molecules must reach a certain critical value; (2) space factors, the activated molecules must collide with each other in a certain direction before reaction can occur; the energy possessed by the reactant molecule, in a macroscopic sense, refers to its temperature, and the higher the temperature, the higher the energy possessed by it. And from the perspective of molecular thermal motion, the average rate of molecular thermal motion is calculated as follows:
thus, increasing the reaction temperature can significantly increase the reactant distributionThe rate of thermal movement of the daughter, thereby increasing the energy it has, and thus facilitating an increase in the rate of reaction. However, an increase in the reaction temperature also entails some unfavorable results, such as excessive energy consumption, possibly affecting the equilibrium conversion and selectivity, possibly causing side reactions (e.g., decomposition of the raw materials), and the like, and has a high requirement for thermal stability of the raw materials.
The catalyst method is to add a proper amount of catalyst in the chemical reaction process to promote the chemical reaction. The catalyst is a substance which changes the reaction rate by changing the activation energy, and the catalyst is not destroyed or changed during the reaction process and can be repeatedly used. The activation energy is the lowest energy required for the reaction to start or to occur naturally, the higher the activation energy is, the harder the reaction is to start, and the slower the reaction rate is, and the use of a catalyst can reduce the activation energy of the reaction, thereby increasing the reaction rate. However, many chemical reactions use catalysts that are not readily available and expensive, resulting in high production costs, and the selection of suitable catalysts is extremely labor intensive, as well as the myriad of types of catalysts.
In view of the above, there are inevitable drawbacks in increasing the concentration of reactants, increasing the reaction temperature and increasing the reaction rate by using a catalyst, and therefore, there is a need for a new method for increasing the chemical reaction rate.
The impinging stream is a special flow form first proposed by Elperin, and the concept is that two or more streams (gas-solid, liquid-liquid or gas-liquid) flow oppositely along the same axis after being sufficiently accelerated and collide to form a highly turbulent collision region, which can effectively reduce the external resistance in the transmission process, enhance the heat and mass transmission and promote the mixing. Currently, impinging stream technology and impinging stream devices (e.g., impinging stream reactors) based on the impinging stream principle have been widely applied to chemical processes such as absorption, mixing, heat transfer, extraction, drying, etc. However, the current impinging stream technology mainly realizes rapid mixing of raw materials, and the promotion of the reaction mainly aims at improving mass transfer. The velocity of the feedstock flow is low (typically less than 20 m/s) and it has low kinetic energy and is not sufficient to directly affect the rate and selectivity of the chemical reaction, but only indirectly by affecting the mass/heat transfer.
Disclosure of Invention
In view of the above problems of the prior art, it is an object of the present invention to provide a method and apparatus for impinging stream based chemical reactions.
In order to achieve the purpose, the invention adopts the following technical scheme:
a chemical reaction method based on impinging stream is characterized in that raw materials moving at high speed are impacted oppositely at high speed in an impinging stream reactor to generate chemical reaction.
The feedstock includes a catalyst.
The feedstock is impinged in either a continuous feed or a batch feed.
By high velocity impact is meant impact velocities above 100 m/s and further, near or above sonic velocity.
Preferably, the kinetic energy of the high-speed raw material exceeds the activation energy of the chemical reaction, thereby promoting the reaction. The high speed motion refers to a velocity higher than 50 m/s (further, higher than 100 m/s; further, near or higher than sonic velocity), and under the high speed motion, the kinetic energy of the fluid exceeds the activation energy of the reaction, thereby promoting the chemical reaction.
The raw material is gas phase or liquid phase.
Preferably, the feedstock is pressurized and then depressurized to achieve a high rate.
As a further preferable scheme, when the raw material is a gas phase, the gas phase raw material is pressurized to be a high-pressure gas phase raw material, and then the high-pressure gas phase raw material pressurizing unit is depressurized to obtain a high speed; when the raw material is liquid phase, the liquid phase raw material is pressurized into high pressure liquid phase raw material, then the high pressure liquid phase raw material is decompressed to obtain high speed, or the high pressure gas is directly decompressed to push the liquid phase raw material to obtain high speed.
The chemical reaction device based on the impinging stream comprises the impinging stream reactor, at least one pair of nozzles are arranged in the impinging stream reactor, each pair of nozzles are oppositely arranged on the inner side wall of the impinging stream reactor, and the chemical reaction device further comprises a plurality of high-pressure raw material supply units, each high-pressure raw material supply unit comprises a raw material storage container and a pressurizing unit, and the pressurizing unit is connected with an outlet of the raw material storage container and an inlet of each nozzle through a pipeline.
Preferably, the pressurizing unit is a pressurizing device or a high-pressure gas injection device.
As a further preferred scheme, the pressurizing device includes but is not limited to a pressurizing pump and a pressure multiplier.
Preferably, the high-pressure raw material supply unit comprises an energy storage device and a temperature control device, the energy storage device is connected with the outlet of the pressurizing unit and the inlet of the nozzle through pipelines, and the temperature control device is arranged on the energy storage device or at the inlet end of the energy storage device.
As a further preferable aspect, the temperature control device includes a heat exchanger.
Preferably, a collection unit is included, the collection unit being connected to the outlet of the impinging stream reactor.
Preferably, the apparatus further comprises a quick-opening valve provided in a pipe between the outlet end of the high-pressure raw material supply unit and the inlet end of the nozzle.
Preferably, the distance and angle between each pair of nozzles is adjustable.
The principles of the chemical reactions described above in accordance with the present invention can be used in a variety of chemical reactions to synthesize a variety of chemicals, such as: the method can be used for preparing the NaA molecular sieve, and comprises the following steps:
a NaA molecular sieve preparation method based on impinging stream comprises the following steps:
a) dissolving sodium hydroxide and sodium metaaluminate in water, adding silica sol, and uniformly stirring and mixing to obtain Na with a molar ratio of (2.5-3.5)2O:1Al2O3:(1.5～2.5)SiO2:(120～130)H2O raw material liquid for standby;
b) preheating the raw material liquid to 95-100 ℃, pushing the raw material liquid by high-pressure gas, and enabling the raw material liquid to quickly enter the impinging stream reactor through a nozzle in the impinging stream reactor and generate high-speed opposite impingement to crystallize the raw material;
c) and collecting the crystallized product to obtain the NaA molecular sieve.
Compared with the prior art, the invention has the following remarkable beneficial effects:
the invention creatively leads the raw materials moving at high speed to generate high-speed opposite impact in the impact flow reactor, namely, the kinetic energy of the raw materials can be utilized to instantly finish the chemical reaction, thereby obviously improving the chemical reaction rate, being easy to realize and simple to operate, realizing the obvious improvement of the reaction rate without high temperature and high concentration, saving the energy consumption and not influencing the selectivity of the reaction; in addition, the device of the invention has the advantages of simple structure, convenient operation, low cost, wide use and strong practicability, and has significant progress and outstanding beneficial effects compared with the prior art.
Drawings
FIG. 1 is a schematic structural diagram of an impinging stream-based chemical reaction apparatus provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an impinging stream-based chemical reaction apparatus having an energy storage device and a temperature control device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an impinging stream-based chemical reaction apparatus having an energy storage device and a temperature control device according to another installation method provided by an embodiment of the invention;
FIG. 4 is a schematic view of the installation of a nozzle in an embodiment of the invention;
FIG. 5 is an XRD spectrum of a product obtained by heating the raw material liquid in step b) for 25-40 minutes at 98 ℃ before impact in the application example of the present invention;
FIG. 6 is an SEM photograph of the product of step b) of the present invention after heating at 98 deg.C for 25-40 minutes before impinging on the feed liquid;
FIG. 7 is an XRD spectrum of a product after the raw material liquid in the step b) in the application example of the invention is heated for 30 minutes at 98 ℃ and then is subjected to opposite impact under the pushing of gases with different pressures;
FIG. 8 is an SEM photograph of the product after the raw material liquid in step b) of the application example of the invention is heated at 98 ℃ for 30 minutes and then is subjected to opposite impact under the pushing of gas with the pressure of 50 bar;
the numbers in the figures are as follows: 1-impinging stream reactor; 2-a nozzle; 3-a high pressure feedstock supply unit; 31-a raw material storage container; 32-a pressurizing unit; 33-an energy storage device; 34-a temperature control device; 4-a collection unit; 5-quick open valve.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the following embodiments, drawings and application examples.
Examples
The invention provides a chemical reaction method based on impinging stream, which enables raw materials moving at high speed to impinge oppositely at high speed in an impinging stream reactor to generate chemical reaction. Wherein the kinetic energy of the raw material moving at high speed exceeds the activation energy of the chemical reaction, thereby promoting the reaction.
The raw material is gas phase or liquid phase. The raw material is pressurized and then decompressed to obtain high speed, and specifically, when the raw material is in a gas phase, the gas phase raw material is pressurized by a pressurizing device and then decompressed by a nozzle to obtain high speed; when the raw material is in a liquid phase, the liquid phase raw material is pressurized by a pressurizing device and then is depressurized by a nozzle to obtain a high speed, or high-pressure gas is directly injected into the liquid phase raw material to pressurize the raw material, and then the high-pressure gas is depressurized to push the liquid phase raw material to obtain a high speed.
In order to realize the above chemical reaction method, as shown in fig. 1 to 4: the invention also provides a chemical reaction device based on impinging stream, which comprises an impinging stream reactor 1, wherein a pair of nozzles 2 are arranged in the impinging stream reactor 1, each pair of nozzles 2 are oppositely arranged on the inner side wall of the impinging stream reactor 1, the chemical reaction device also comprises a plurality of high-pressure raw material supply units 3, each high-pressure raw material supply unit 3 comprises a raw material storage container 31 and a pressurizing unit 32, and the pressurizing unit 32 is connected with the outlet of the raw material storage container 31 and the inlet of the nozzle 2 through pipelines.
When the chemical reaction is carried out by the device, the raw material flows out of the raw material storage container 31 and is pressurized by the pressurizing unit 32, the pressurized raw material is decompressed and accelerated by the nozzle 2 (the pressure in the nozzle 2 is far lower than the pressure of the pressurized raw material, and the process of the pressurized raw material passing through the nozzle 2 is actually equivalent to a throttling expansion process), so that the raw material passing through the nozzle 2 obtains extremely high speed (higher than 50 m/s; further higher than 100 m/s; further, close to or higher than the speed of sound) and kinetic energy, the raw material moving at high speed is ejected from the nozzle 2 and enters the impact flow reactor 1 to generate high-speed impact (the impact speed is related to the moving speed of the raw material, usually higher than 100 m/s; further, close to or higher than the speed of sound), thus the kinetic energy of the raw material can be utilized to promote the rapid chemical reaction between the raw material components, to obtain the desired target product;
in this process, to ensure that the kinetic energy of the feedstock is sufficient to promote rapid chemical reactions between the feedstock components, the feedstock should have a high flow rate such that it has a kinetic energy that exceeds the activation energy of the chemical reaction.
In the above reaction process, the raw materials sprayed from each nozzle 2 may be the same or different, that is, the same raw materials may be sprayed from different nozzles 2 at the same time to cause chemical reactions of the components in the raw materials, or several raw materials required for chemical reactions may be sprayed from different nozzles 2 respectively to cause chemical reactions between the raw materials.
The core point of the invention is that the raw material has extremely high speed and kinetic energy, then the high-speed impact of the raw material with high kinetic energy is utilized to promote the rapid chemical reaction among the components of the raw material, the raw material can be in a gas phase or a liquid phase, the raw material can be in a gas phase, the raw material can be in a liquid or solid phase, the raw material can be in a liquid phase, the raw material can also be in a solution prepared by dissolving a proper solvent, the raw material can be dissolved into a solution by the proper solvent to facilitate the raw material to enter the impact flow reactor to impact when the raw material is in the solid phase, the raw material can comprise reactants and also comprise necessary catalysts), compared with the traditional reaction method, the reaction method can effectively reduce the reaction temperature, save energy consumption, avoid side reaction and limit the raw materials to the thermal stability raw materials.
As a preferable scheme:
the pressurizing unit 32 is a pressurizing device or a high-pressure gas injection device, and the pressurizing device can adopt a commercially available pressurizing device, including but not limited to a pressurizing pump and a pressure multiplier; when the pressurizing unit 32 is a pressurizing device, the raw material may be in a liquid phase or a gas phase, the raw material is directly pressurized by the pressurizing unit 32 to be a high-pressure raw material, and is then depressurized by the nozzle 2 so as to obtain a high speed, wherein the raw material may be in a liquid phase or a gas phase; when the pressurizing unit 32 is a high-pressure gas injection device, the raw material is a liquid-phase raw material, and the high-pressure gas is directly injected into the liquid-phase raw material through the high-pressure gas injection device to pressurize the raw material, and then the raw material is ejected from the nozzle 2 by the push of the high-pressure gas and depressurized to obtain a high speed of the raw material.
As shown in fig. 2 and 3, the high-pressure raw material supply unit 3 includes an energy storage device 33 and a temperature control device 34, the energy storage device 33 is connected with an outlet of the pressurizing unit 32 and an inlet of the nozzle 2 through a pipeline, the raw material passes through the pressurizing unit 32 after being released from the raw material storage container 31, the obtained high-pressure raw material enters the energy storage device 33 and then enters the nozzle 2 through a pipeline, the temperature control device 34 is arranged on the energy storage device 33 (shown in fig. 2) or at an inlet end of the energy storage device 33 (shown in fig. 3), when the temperature control device is arranged on the energy storage device 33, the pressurized high-pressure raw material enters the energy storage device 33 and is adjusted to a proper temperature through the temperature control device 34, and then the high-pressure raw material with the proper temperature enters the nozzle 2; when the high-pressure raw material is arranged at the inlet end of the energy storage device 33, the pressurized high-pressure raw material is adjusted to the proper temperature by the temperature control device 34, and then the high-pressure raw material with the proper temperature enters the nozzle 2 from the energy storage device 33.
The temperature control device 34 includes a heat exchanger through which the raw material is brought to a suitable temperature. The temperature control device 34 may further include a temperature sensor and a temperature controller (not shown), the temperature sensor is electrically connected to the temperature controller to perform intelligent monitoring on the temperature of the raw material, and the temperature sensor may be mounted on the energy storage device 33.
The chemical reaction device comprises a collecting unit 4, wherein the collecting unit 4 is connected with the outlet of the impinging stream reactor 1 to collect the product after the chemical reaction is finished.
The chemical reaction apparatus includes a quick-opening valve 5, and the quick-opening valve 5 is provided on a pipe between an outlet end of the high-pressure raw material supply unit 3 and an inlet end of the nozzle 2, and more particularly, on a pipe between the pressurizing unit 32 and the nozzle 2, to rapidly discharge the high-pressure raw material into the nozzle 2. When the high-pressure raw material supply unit 3 includes the energy storage device 33, the quick-opening valve 35 is provided on the pipe between the energy storage device 33 and the nozzle 2 to quickly release the high-pressure raw material. The quick-opening valves 5 can be connected in parallel, so that raw materials in different high-pressure raw material supply units 3 can be controlled to enter different nozzles 2 at the same time.
The number of the high-pressure raw material supply units 3 is at least two.
The distance and angle between each pair of nozzles 2 can be adjusted, and as shown in fig. 4 in particular, the separation distance D between each pair of nozzles 2 and the angle θ between each pair of nozzles 2 can be freely adjusted according to actual needs.
Meanwhile, the raw material storage container 31 and the energy storage device 33 of the present invention may be provided with a flow meter or a flow control valve (not shown) for easy operation and flow control.
The core point of the present invention is to make the raw material have extremely high speed and kinetic energy, and then to promote the rapid chemical reaction between the raw material components by utilizing the high-speed impact of the raw material with high kinetic energy, as long as the raw material has extremely high speed and kinetic energy, the raw material can have extremely high speed and kinetic energy through the pressure change as shown in the embodiment of the present invention, and other means or methods can also be adopted.
Application example
a) Dissolving sodium hydroxide and sodium metaaluminate in water, adding silica sol, stirring and mixing uniformly to obtain 3.165Na2O:1Al2O3:1.926SiO2:128H2O raw material liquid for standby;
b) heating the raw material liquid to 98 ℃ and preserving heat for 25-40 minutes, then inputting the heated raw material liquid into a nozzle 2 (the relative distance between the nozzles 2 is 15mm) arranged in an impinging stream reactor 1 through a pipeline by using high-pressure gas (the pressure is 5-70 bar), wherein the pressure in the nozzle 2 is normal pressure because the nozzle 2 is directly communicated with the atmosphere, so that the gas pressure difference for pushing the raw material liquid can be controlled to be 5-70 bar, the raw material liquid obtains extremely high speed (the speed is about 100 m/s when 50 bar) and kinetic energy under the action of the pressure difference, the high-speed raw material liquid is sprayed into the impinging stream reactor 1 from the nozzle 2 and carries out high-speed opposite impingement (the impingement speed is twice of the liquid outlet speed, and the impingement speed is about 200 m/s when 50 bar), and the raw material is crystallized;
c) and collecting the crystallized product to obtain the NaA molecular sieve.
In the application example, the time of the whole process from heating to impacting to crystallizing synthesis of the NaA molecular sieve is not more than 45 minutes, while the traditional NaA molecular sieve is synthesized by a hydrothermal method, and the synthesis can be completed only by preparing a molecular sieve mother solution and then placing the molecular sieve mother solution in a crystallization kettle to react for 4 hours at 100 ℃, so that the synthesis rate of the NaA molecular sieve is obviously improved.
FIG. 5 is an XRD spectrum of a product obtained by heating the raw material liquid in step b) for 25-40 minutes at 98 ℃ before impact in the application example; as can be seen from FIG. 5, the raw material solution is heated at 98 ℃ for 25-30 minutes before impact, crystallization reaction is basically avoided, the product is in an amorphous state, and after heating for 30-40 minutes, although a characteristic peak of the A-type molecular sieve appears, the crystallinity is not high, which indicates that the crystallization reaction of the molecular sieve is not complete.
FIG. 6 is an SEM photograph of the product of step b) in this application after heating at 98 deg.C for 25-40 minutes; wherein a and b are SEM pictures of a product heated at 98 ℃ for 30 minutes, and c and d are SEM pictures of a product heated at 98 ℃ for 35 minutes; e. f is an SEM photograph of the product after heating at 98 ℃ for 40 minutes; as can be seen from fig. 6, the raw material solution is heated at 98 ℃ for 30 minutes before impact, no crystallization reaction is basically generated, the product is in an amorphous state, and no molecular sieve crystal with regular morphology exists; after heating for 35 and 40 minutes, square molecular sieve crystals with a diameter of about 1 micron appeared in the SEM pictures, which is typical of type A molecular sieves, but the molecular sieve crystals are less in proportion, indicating that the degree of crystallization reaction of the molecular sieve is small.
FIG. 7 is an XRD spectrum of a product obtained after the raw material liquid in step b) in the application example is heated at 98 ℃ for 30 minutes and then is subjected to opposite impact under the pushing of gases with different pressures; the contrast in the figure refers to the XRD pattern without impact when heated at 98 ℃ for 30 minutes, and as can be seen from fig. 7, under the premise that the heating time is fixed at 30 minutes, the higher the velocity of the liquid obtained at the outlet of the nozzle is with the increase of the pushing gas pressure, the higher the XRD pattern peak height of the corresponding product is, and the crystallinity of the a-type molecular sieve is improved, which indicates that the acceleration effect on the crystallization of the molecular sieve is more significant with the increase of the impact velocity of the raw material liquid, i.e. the increase of the kinetic energy of the raw material.
FIG. 8 is an SEM photograph of the product after the raw material liquid in step b) of the present application is heated at 98 ℃ for 30 minutes and then is subjected to opposite impact under the pushing of a gas with a pressure of 50 bar; as can be seen from fig. 8, a large number of cubic crystals appear in the SEM picture, consistent with the typical morphology of the type a molecular sieve, indicating that the high velocity impact of the opposing phases of the feedstock liquid significantly promotes the crystallization reaction.
Finally, it should be pointed out here that: the above is only a part of the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, and the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above description are intended to be covered by the present invention.
Claims (8)
1. A chemical reaction process based on impinging streams, characterized by: the raw materials moving at high speed are impacted oppositely at high speed in the impact flow reactor to generate chemical reaction.
2. The chemical reaction method according to claim 1, characterized in that: the raw material is gas phase or liquid phase.
3. The chemical reaction method according to claim 1, characterized in that: the feedstock is impinged in either a continuous feed or a batch feed.
4. The chemical reaction method according to claim 1, characterized in that: the high-speed moving raw material has kinetic energy exceeding activation energy of chemical reaction.
5. An impinging stream-based chemical reaction device, comprising an impinging stream reactor, wherein at least one pair of nozzles is arranged in the impinging stream reactor, and each pair of nozzles is oppositely arranged on the inner side wall of the impinging stream reactor, and the device is characterized in that: the device also comprises a plurality of high-pressure raw material supply units, wherein each high-pressure raw material supply unit comprises a raw material storage container and a pressurizing unit, and the pressurizing unit is connected with an outlet of the raw material storage container and an inlet of the nozzle through pipelines.
6. The chemical reaction device as claimed in claim 5, wherein: the high-pressure raw material supply unit comprises an energy storage device and a temperature control device, the energy storage device is connected with an outlet of the pressurizing unit and an inlet of the nozzle through pipelines, and the temperature control device is arranged on the energy storage device or at an inlet end of the energy storage device.
7. The chemical reaction device as claimed in claim 5, wherein: comprises a collecting unit which is connected with the outlet of the impinging stream reactor.
8. The chemical reaction device as claimed in claim 5, wherein: the quick-opening valve is arranged on a pipeline between the outlet end of the high-pressure raw material supply unit and the inlet end of the nozzle.
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| CN115938494A (en) * | 2022-11-24 | 2023-04-07 | 中国科学院大气物理研究所 | DCU accelerated calculation method, equipment and storage medium of gas-phase chemical module |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1425493A (en) * | 2002-12-26 | 2003-06-25 | 华北工学院 | Impact flow-rotary filler bed device and using method |
| CN2605048Y (en) * | 2003-02-20 | 2004-03-03 | 武汉化工学院 | Impact flow crystallizer |
| KR20060018001A (en) * | 2004-08-23 | 2006-02-28 | 한국과학기술연구원 | Device for promoting rate of chemical reaction |
| CN101235136A (en) * | 2008-02-28 | 2008-08-06 | 宁波万华聚氨酯有限公司 | Process for preparing polycarbonate |
| CN103861544A (en) * | 2012-12-17 | 2014-06-18 | 中国石油化工股份有限公司 | Impinging stream reactor and application thereof |
| CN107519827A (en) * | 2016-06-19 | 2017-12-29 | 中国石油化工股份有限公司 | A kind of energy-efficient dimethylbenzene separating technology |
| CN207478546U (en) * | 2017-09-14 | 2018-06-12 | 微宏动力系统（湖州）有限公司 | A kind of impact flow reactor |
-
2018
- 2018-09-07 CN CN201811042981.0A patent/CN110882673A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1425493A (en) * | 2002-12-26 | 2003-06-25 | 华北工学院 | Impact flow-rotary filler bed device and using method |
| CN2605048Y (en) * | 2003-02-20 | 2004-03-03 | 武汉化工学院 | Impact flow crystallizer |
| KR20060018001A (en) * | 2004-08-23 | 2006-02-28 | 한국과학기술연구원 | Device for promoting rate of chemical reaction |
| CN101235136A (en) * | 2008-02-28 | 2008-08-06 | 宁波万华聚氨酯有限公司 | Process for preparing polycarbonate |
| CN103861544A (en) * | 2012-12-17 | 2014-06-18 | 中国石油化工股份有限公司 | Impinging stream reactor and application thereof |
| CN107519827A (en) * | 2016-06-19 | 2017-12-29 | 中国石油化工股份有限公司 | A kind of energy-efficient dimethylbenzene separating technology |
| CN207478546U (en) * | 2017-09-14 | 2018-06-12 | 微宏动力系统（湖州）有限公司 | A kind of impact flow reactor |
Non-Patent Citations (4)
| Title |
|---|
| （以色列）A.TAMIR著: "《撞击流反应器 原理和应用》", 30 June 1996, 化学工业出版社 * |
| 刘有智著: "《超重力化工过程与技术》", 31 January 2009, 国防工业出版社 * |
| 常利峰等: "微乳液法制备无模板剂NaA分子筛", 《石油化工》 * |
| 梁成浩主编: "《现代腐蚀科学与防护技术》", 30 September 2007, 华东理工大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115938494A (en) * | 2022-11-24 | 2023-04-07 | 中国科学院大气物理研究所 | DCU accelerated calculation method, equipment and storage medium of gas-phase chemical module |
| CN115938494B (en) * | 2022-11-24 | 2024-01-09 | 中国科学院大气物理研究所 | DCU acceleration calculation method, equipment and storage medium of gas phase chemical module |
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