CN220143336U - Charging mechanism and reaction device for inflammable wet catalyst - Google Patents
Charging mechanism and reaction device for inflammable wet catalyst Download PDFInfo
- Publication number
- CN220143336U CN220143336U CN202321700586.3U CN202321700586U CN220143336U CN 220143336 U CN220143336 U CN 220143336U CN 202321700586 U CN202321700586 U CN 202321700586U CN 220143336 U CN220143336 U CN 220143336U
- Authority
- CN
- China
- Prior art keywords
- catalyst
- tank body
- valve
- reactor
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 174
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 101
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000002955 isolation Methods 0.000 claims abstract description 20
- 230000005587 bubbling Effects 0.000 claims abstract description 13
- 239000012298 atmosphere Substances 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 57
- 238000010926 purge Methods 0.000 claims description 31
- 238000007599 discharging Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 17
- 239000007924 injection Substances 0.000 claims description 17
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 18
- 239000002904 solvent Substances 0.000 description 20
- 238000007789 sealing Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 6
- 229910000564 Raney nickel Inorganic materials 0.000 description 6
- 239000007795 chemical reaction product Substances 0.000 description 6
- 239000007868 Raney catalyst Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 239000012295 chemical reaction liquid Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- UKVIEHSSVKSQBA-UHFFFAOYSA-N methane;palladium Chemical compound C.[Pd] UKVIEHSSVKSQBA-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000003746 solid phase reaction Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The utility model discloses a charging mechanism and a reaction device for inflammable wet catalysts, which comprise a tank body with a conical bottom, wherein the top of the tank body is provided with a feed inlet, and the bottom of the tank body is provided with a discharge outlet; the top of the tank body is also provided with an isolation device, the feed inlet is positioned in the isolation device, and the isolation device is used for providing nitrogen protection atmosphere when the tank body is fed; the side of the tank body is provided with an inserting port, the tank body is internally provided with an inserting pipe, the inserting pipe is inserted into the tank body through the inserting port, and one end of the inserting pipe, far away from the tank body, is connected with a nitrogen bubbling valve. According to the feeding mechanism for the inflammable catalyst, the feeding port is arranged in the isolating device, so that the catalyst is fed in an inert environment, a large amount of water is not required to be conveyed, the reactor is not required to be disassembled to complete the feeding process, the operation is simple, and the safety is high.
Description
Technical Field
The utility model relates to the technical field of reaction devices for inflammable catalysts, in particular to a feeding mechanism for inflammable wet catalysts, and a reaction device with the feeding mechanism.
Background
The fixed bed reactor is characterized in that granular solid catalyst or solid reactant is filled in the reactor to form a stacked bed layer with a certain height, and gas or liquid materials flow through a static fixed bed layer through particle gaps to realize a heterogeneous reaction process. Fixed bed reactors are widely used in gas-solid phase reactions and liquid-solid phase reaction processes. In recent years, continuous catalytic hydrogenation processes using a fixed bed have been rapidly developed in the field of pharmaceutical synthesis due to their unique advantages in terms of safety, regulatory properties, and the like.
The medicine research and development production mostly uses a small fixed bed reactor, the diameter of the reactor is generally within 100mm, and supported noble metal catalysts such as palladium and platinum are often used. Such catalysts are generally dry spherical particles, are safe prior to use, can be exposed to air for handling, have a high risk of spontaneous combustion by fuming only after contact with hydrogen. However, some catalysts have high risk before use, such as palladium on charcoal, raney nickel, etc., which are very active and spontaneously burned when exposed to air, and require sealing with water or other solvents, are wet catalysts, and are often used in kettle-type production processes. However, even in kettle processes, the feeding and discharging of such catalysts presents a challenge, and strict safety measures are required, such as the need to add the catalyst in an inert environment, the feeding and discharging of the catalyst is generally performed by adding the catalyst to a stirred tank, and the catalyst is drawn in or flushed out after being diluted with a large amount of water or other solvents.
The catalyst has certain use requirement on a fixed bed reactor, the catalyst is usually smaller in particle size, the specific surface area of the catalyst with small particle size and the same weight is large, the active centers which are dispersed and can participate in the reaction are increased, and the catalytic efficiency is high. Fixed bed reactors, however, present greater difficulties in using such catalysts. Because the fixed bed reactor has smaller volume, larger length-diameter ratio and smaller inlet and outlet, a large amount of water is difficult to transport and carry out like a reaction kettle. In the lab bench test stage, feeding and discharging are generally finished by disassembling the reactor, but the risk is high, and the conditions such as ignition in the operation process are frequent; in production above pilot scale, because of a plurality of pipeline meters and the like, the disassembly is inconvenient, the nitrogen sealing environment is realized, and the method is not practical. Problems have limited the use of such catalysts in fixed bed reactors, and the use of such wet catalysts in fixed bed reactors has been rarely reported.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present utility model provides a feeding mechanism for flammable catalysts, through which the catalyst is fed into a fixed bed reactor without a large amount of water transport, without disassembling the reactor to complete the feeding process, with simple operation and high safety. In addition, the utility model also provides a reaction device with the feeding mechanism, the catalyst is added into the fixed bed reactor through the feeding mechanism, and the catalyst after reaction is collected through the catalyst collector, so that the feeding and discharging problems of the fixed bed reactor when the inflammable catalyst is used are solved, the industrial application of the inflammable catalyst in the fixed bed reactor is possible, and the application range of the inflammable catalyst is enlarged.
According to a first aspect of the utility model, a charging mechanism for combustible wet catalysts is provided, and comprises a tank body with a conical bottom, wherein a feed inlet is formed in the top of the tank body, and a discharge outlet is formed in the bottom of the tank body;
the top of the tank body is also provided with an isolation device, the feed inlet is positioned in the isolation device, and the isolation device is used for providing nitrogen protection atmosphere when the tank body is fed;
the side of the tank body is provided with an inserting port, the tank body is internally provided with an inserting pipe, the inserting pipe is inserted into the tank body through the inserting port, and one end of the inserting pipe, far away from the tank body, is connected with a nitrogen bubbling valve.
Inflammable wet catalysts, commonly known as palladium on carbon, raney nickel, and the like, are extremely active and are easily pyrophoric when exposed to air, and in order to reduce the risk of use, inflammable wet catalysts are often blocked in water or other solvents.
Before feeding, a catalyst (simply referred to as a catalyst sealing liquid) sealed in water or other solvents is placed in an isolating device, and nitrogen is introduced into the isolating device to carry out inert treatment on the catalyst sealing liquid. And opening a nitrogen bubbling valve, and blowing nitrogen into the tank body to ensure that the catalyst sealing liquid is in an inert environment during charging.
During feeding, catalyst sealing liquid is added into the feeding port through the isolating device, and the catalyst sealing liquid enters the tank body for standby. Because the specific gravity of the catalyst is greater than that of water, the catalyst is easy to settle, and the nitrogen bubbling valve is opened, the nitrogen bubbling not only provides an inert environment, but also has the function of stirring and dispersing the catalyst, so that the catalyst is not deposited at the bottom of the tank body to cause blockage.
As a preferred embodiment, the isolation device is a glove box.
The isolating device is used for adding the catalyst into the tank body in an inert environment, so that spontaneous combustion of the catalyst is avoided when the catalyst enters the tank body, and the use risk is reduced. The isolation means, on the one hand, requires an inert environment for the catalyst and, on the other hand, provides space for the feed. A relatively common device in the biochemical field is a glove box, through which a worker completes the charging process. Any device capable of realizing the function in the prior art can be used as the isolation device, and is not limited to a glove box.
As a preferred embodiment, the feed inlet is provided with a feed valve and a feed hopper, which are located in the isolation device.
Set up feed valve and feed hopper on the jar body, the feeding operation of being convenient for avoids the charging in-process to dismantle jar body end cover, improves the security and the implementation efficiency of operation.
As a preferred embodiment, the tank body is provided with a sight glass.
The staff can observe the feeding condition of the catalyst in real time through the sight glass and make adjustments.
As a preferred embodiment, the tank body is provided with a vent valve.
And the emptying valve is used for pressure relief during catalyst adding.
In a second aspect of the utility model, there is provided a reaction apparatus for flammable wet catalysts comprising a feed mechanism, a reactor and a catalyst collector as described above,
the top of the reactor is provided with a material inlet, the bottom of the reactor is provided with a material outlet, the material inlet is connected with a discharge hole of the feeding mechanism, and the material outlet is connected with a catalyst collector through a discharge pipe;
the top end of the reactor is provided with a first nitrogen purging valve, the side part of the bottom end of the reactor is provided with a first liquid outlet, and a first catcher is arranged at the first liquid outlet;
the discharging pipe is communicated with a nitrogen purging pipe, and a second nitrogen purging valve is arranged on the nitrogen purging pipe.
The reaction device comprises a feeding mechanism, a reactor and a catalyst collector, wherein the feeding mechanism is used for feeding, the catalyst collector is used for discharging, and the reactor is a reaction place. The catalyst enters the reactor through the feeding mechanism, and the catalyst enters the reactor in the form of a sealing liquid, contains water or other solvents, and is discharged through the first liquid outlet, so that the first catcher intercepts catalyst particles. After the reaction is finished, the first nitrogen purging valve and the second nitrogen purging valve are respectively opened to purge the reactor and the catalyst collector, so that the inert environment of the reactor and the catalyst collector is ensured. The catalyst enters the catalyst collector from the material outlet.
As the preferred embodiment, the reactor top is provided with the second liquid outlet in the opposite side of material entry, the one end that the intubate kept away from the jar body still is connected with first inlet, be provided with feed liquor valve and first drain valve between first inlet and the second liquid outlet, be provided with the second trap on the pipeline that second liquid outlet and first drain valve are linked together.
In the process of adding the catalyst into the reactor, if the pressure of the reactor rises, when the feeding speed of the catalyst is very slow, water or other solvents in the reactor can be discharged through the second liquid outlet, the catalyst is settled by gravity and enters the reactor, when water is needed to be supplemented in the feeding mechanism, the discharged water or other solvents can enter the tank body through the first liquid inlet again, the feeding mechanism is supplemented with water, the recycling of resources is realized through simple operation, and the production efficiency is improved. In order to avoid that the catalyst flows out of the reactor along with the water discharge, a filter component is arranged at the second liquid outlet to block the catalyst, and the catalyst is kept in the reactor.
The second trap may be a filter screen, and any component having a function of trapping the catalyst in the prior art may be used as the second trap.
As a preferred embodiment, a liquid outlet pipe is arranged at the first liquid outlet, and the liquid outlet pipe is connected with the liquid outlet pipe.
The first liquid outlet is used for discharging reaction products, and can be used for discharging redundant moisture or other solvents in the process of adding the catalyst, and the discharged moisture or other solvents enter the catalyst collector through the liquid outlet pipe and the discharge pipe and are used for providing inert environment for the catalyst so as to realize the reuse of resources.
As a preferred embodiment, a water injection pipe is arranged on the outer side of the reactor, and the discharging pipe is connected with the water injection pipe.
When the water or other solvent discharged from the reactor is insufficient, the water or other solvent is replenished into the catalyst collector through a water injection pipe.
As a preferred embodiment, a filter bag is provided in the catalyst collector.
The filter bag is used for collecting the catalyst, so that the catalyst is convenient to transfer.
In the use process, complicated use steps are not existed, and the operation is simple.
Compared with the prior art, the utility model has the following beneficial effects:
(1) According to the feeding mechanism for the inflammable wet catalyst, the feeding port is arranged in the isolating device, so that the catalyst is fed in an inert environment, a large amount of water is not required to be conveyed, the reactor is not required to be disassembled to complete the feeding process, the operation is simple, and the safety is high.
(2) According to the feeding mechanism for the inflammable wet catalyst, nitrogen is blown into the tank body by arranging the nitrogen bubbling valve, so that an inert environment is provided for the tank body, and the catalyst is stirred and dispersed, so that the catalyst is not blocked due to deposition at the bottom of the tank body, and the feeding mechanism can be normally used under the condition that a stirring device is not arranged.
(3) The reaction device for the inflammable wet catalyst comprises a feeding mechanism, a reactor and a catalyst collector, wherein the catalyst is added into the fixed bed reactor through the feeding mechanism, and the catalyst after reaction is collected through the catalyst collector, so that the problems of feeding and discharging of the fixed bed reactor when the inflammable catalyst is used are solved, industrial application of the inflammable catalyst in the fixed bed reactor is possible, and the application range of the inflammable catalyst is enlarged.
(4) The reaction device for the inflammable wet catalyst in the utility model can be used for inputting the water or other solvents discharged from the reactor into the feeding mechanism or the catalyst collector again through ingenious design, thereby realizing the recycling of resources and reducing the production cost.
(5) The reaction device for the inflammable wet catalyst solves the problem of spontaneous combustion of the catalyst with small particle size, can use the catalyst with particle size below 200 mu m, and provides more and better choices for the hydrogenation process of the small molecular medicine.
The conception, specific structure, and technical effects of the present utility model will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present utility model.
Drawings
FIG. 1 is a schematic structural view of a reaction apparatus usable for a combustible wet catalyst according to the utility model.
In the figure: 1-emptying valve, 2-one-way valve, 3-cannula, 4-discharge valve, 5-first nitrogen purge valve, 6-feed hopper, 7-feed valve, 8-sight glass, 9-nitrogen purge valve, 10-feed valve, 11-water injection pipe, 12-water injection valve, 13-second drain valve, 14-second trap, 15-first outlet valve, 16-reactor feed valve, 17-reactor, 18-interception part, 19-catalyst outlet valve, 20-reaction liquid outlet valve, 21-second trap, 22-first drain valve, 23-second nitrogen purge valve, 24-catalyst collector inlet valve, 25-catalyst collector, 26-filter bag, 27-drain outlet valve, 28-feed mechanism, 29-isolation device, 30-outlet pipe, 31-make-up line, 32-discharge pipe.
Detailed Description
The utility model is further described with reference to the following detailed description in order to make the technical means, the inventive features, the achieved objects and the effects of the utility model easy to understand. The present utility model is not limited to the following examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model.
As shown in fig. 1, the reaction apparatus for combustible wet catalyst includes three parts of a charging mechanism 28, a reactor 17 and a catalyst collector 25.
The inflammable wet catalyst in the utility model is very active, is easy to spontaneously ignite when exposed to air, and needs to be sealed by water or other solvents, such as palladium carbon and Raney nickel. Of course, the catalyst in the present utility model is not limited to this, and catalysts having similar properties to palladium on carbon and Raney nickel are all flammable wet catalysts.
Charging mechanism 28
The feeding mechanism 28 comprises a tank body with a conical bottom, a feeding hole is formed in the top of the tank body, a feeding valve 7 and a feeding funnel 6 are arranged at the feeding hole, a discharging hole is formed in the bottom of the tank body, and a discharging valve 4 is arranged at the discharging hole; the top of the tank body is also provided with an isolating device 29, and the isolating device 29 is a glove box. The feed opening, the feed valve 7 and the feed hopper 6 are all located in the isolation device 29.
The lateral part of the tank body is provided with the inserted hole, the tank body stretches into an insertion tube 3, the insertion tube 3 stretches into the tank body through the inserted hole, one end of the insertion tube 3, which is far away from the tank body, is connected with a nitrogen bubbling valve 9 and is used for pressurizing and bubbling to enable palladium carbon, raney nickel and other catalysts to suspend so as not to be deposited at the bottom of the tank body and cause blockage. The one end of the cannula 3 far away from the tank body can be connected with a water injection pipe 11 and a liquid inlet valve 10, the water injection pipe 11 and the liquid inlet valve 10 are used for flushing the residual catalyst in the tank body, and a one-way valve 2 is arranged on the flushing pipe for avoiding pressure channeling back.
The tank body is provided with a sight glass 8. The worker can observe the feeding condition of the catalyst in real time through the sight glass 8 and make adjustments. The tank body is also provided with a blow-off valve 1. By arranging the vent valve 1, the pressure is relieved when the catalyst is added.
Reactor 17
The reactor 17 is a fixed bed reactor, the top of the reactor 17 is provided with a material inlet, the bottom of the reactor 17 is provided with a material outlet, the material outlet is provided with a interception part 18 and a catalyst outlet valve 19, and the interception part 18 is a filter screen movably connected with the material outlet. The filter screen is controlled by a catalyst outlet valve 19, and when the catalyst outlet valve 19 is opened, catalyst particles flow out through a material outlet; the entrapment component 18 also has the function of providing support to the catalyst.
The top of the reactor 17 is provided with a first nitrogen purge valve 5 and a reactor feed valve 16, the first nitrogen purge valve 5 is used for controlling the blowing of nitrogen into the reactor 17, and the reactor feed valve 16 is used for controlling the feeding of catalyst into the reactor 17. A second liquid outlet is formed in the opposite sides of the first nitrogen purging valve 5 and the reactor charging valve 16, one end, far away from the tank body, of the insertion tube 3 is connected with a first liquid inlet pipe, and a liquid inlet valve 10 and a first liquid outlet valve 15 are arranged between the first liquid inlet pipe and the second liquid outlet. The pipeline that second liquid outlet and first drain valve 15 are linked together is provided with second trap 14, and here second trap 14 is the filter screen. To flow the catalyst trapped on the filter back into the reactor 17, a second trap 14 is connected to the water injection pipe 11.
The bottom side of the reactor 17 is provided with a first liquid outlet where a first catcher 21 is provided. The first outlet is provided for discharging the reaction product, and the first trap 21 traps the catalyst flowing out with the reaction product in the reactor 17. The first trap 21 may be a filter screen, and any component having a function of trapping the catalyst in the prior art may be used as the first trap 21.
The first liquid outlet department is provided with the drain pipe, and the drain pipe communicates reaction liquid receiver tube and drain pipe respectively, is provided with reaction liquid outlet valve 20 on the reaction liquid receiver tube for control receipt reaction product sets up first drain valve 22 on the drain pipe, is used for control drainage, drain pipe connection discharging pipe 32.
The first liquid outlet is used for discharging the reaction product, and can be used for discharging excessive moisture or other solvents in the process of adding the catalyst, and the discharged moisture or other solvents enter the catalyst collector 25 through the liquid outlet pipe, the water outlet pipe and the discharge pipe 32 to provide an inert environment for the catalyst so as to realize the reuse of resources.
In order to fully utilize the resources, a supply pipeline 31 is further designed on the outer side of the reactor 17, the supply pipeline 31 is respectively connected with the water injection pipe 11 and the liquid outlet pipe 30 at the second liquid outlet, and a second drain valve 13 is arranged on the supply pipeline 31. The supply line 31 is connected to the discharge line 32. The water or other solvent exiting reactor 17 may enter catalyst collector 25 through a drain line 30, a make-up line 31, and a drain line 32. When the water discharged from the reactor 17 is insufficient, the water injection pipe 11 supplies water to the catalyst collector 25 through the supply line 31 and the discharge pipe 32.
Catalyst collector 25
The outlet of the reactor 17 is connected to the catalyst collector 25 via a discharge pipe 32. The discharging pipe 32 is communicated with a nitrogen purging pipe, and a second nitrogen purging valve 23 is arranged on the nitrogen purging pipe. A second nitrogen purge valve 23 is provided to control the purging operation of the catalyst collector 25.
The discharge pipe 32 is connected with the water injection pipe 11. The water injection pipe 11 is provided with a water injection valve 12, and when the water or other solvent discharged from the reactor 17 is insufficient, the water or other solvent is replenished through the water injection pipe 11. A catalyst collector inlet valve 24 is provided on the discharge pipe 32 for controlling the catalyst entering the catalyst collector 25.
A filter bag 26 is provided in the catalyst collector 25. The filter bag 26 is used to collect catalyst and facilitate transfer of catalyst.
A drain vent valve 27 is provided at the bottom end of the catalyst collector 25.
The method for using the reaction device for inflammable wet catalyst comprises the following steps:
s1, placing a sealing liquid of a flammable wet catalyst in an isolating device 29, and introducing nitrogen to perform inerting treatment;
s2, opening a nitrogen bubbling valve 9 until the tank body is in a nitrogen atmosphere;
s3, injecting the catalyst sealing liquid in the S1 into the feed inlet through the isolation device 29, injecting the catalyst sealing liquid into the material inlet of the reactor 17 from the discharge port of the tank body, and discharging the solvent in the catalyst sealing liquid from the first liquid outlet;
s4, after the reaction is finished, opening a first nitrogen purging valve 5 until the reactor 17 is in a nitrogen atmosphere;
s5, opening a second nitrogen purging valve 23, purging the catalyst collector 25 to the nitrogen atmosphere through a nitrogen purging pipe by nitrogen, and discharging a reaction product through a first liquid outlet;
s6, opening a catalyst collector inlet valve 24 at the material outlet, and discharging the catalyst from the material outlet into a catalyst collector 25.
Catalyst addition procedure (for example Raney Nickel catalyst with 50% water)
1) Placing a catalyst in the isolation device 29, and inerting the inside of the isolation device 29 with nitrogen;
2) Opening a nitrogen bubbling valve 9, introducing nitrogen into the tank body, pressurizing to about 0.2Mpa, and closing the nitrogen bubbling valve 9;
3) Opening a pressure release valve 1 on the tank body to normal pressure;
4) Repeating the steps 2) and 3) for 5 times, and then inerting for 5 times, opening the pressure release valve 1 normally;
5) Opening the feed valve 7;
6) Pouring the catalyst into a feed hopper 6 until the catalyst is completely cleaned, and if residues on the wall are left, flushing the catalyst with water;
7) Closing the feeding valve 7 after the feeding is finished;
8) Opening the drain valve 22, opening the catalyst collector inlet valve 24;
9) Opening a drain vent valve 27 at the lower part of the catalyst collector 25;
10 Opening the catalyst discharge valve 4 and the reactor feed valve 16;
11 Opening a nitrogen bubbling valve 9 to pressurize the tank body;
12 If the pressure of the reactor 17 rises, when the catalyst feeding speed is very slow, the second water discharge valve 13 and the first liquid outlet valve 15 are opened, water is discharged from the upper part of the reactor 17, the catalyst is settled into the reactor 17 by gravity, and water can be supplemented in the feeding process according to the situation until the catalyst is completely fed;
13 Closing the second drain valve 13 and the reactor feed valve 16, opening the water injection valve 12 to flush the catalyst in the second trap 14 into the reactor, and ending the catalyst feed operation;
14 Restoring each valve to a normal state and preparing for production.
Catalyst unloading process:
1) After the production is finished, the reactor 17 is flushed clean by using a solvent, and nitrogen is thoroughly purged and discharged to a normal pressure state;
2) The second nitrogen purge valve 23, the catalyst collector inlet valve 24 and the drain exhaust valve 27 are opened, and the nitrogen purge valve 23 is closed after purging and inerting the catalyst collector 25;
3) Opening a catalyst outlet valve 19 at the bottom of the reactor 17 to start discharging, so that the catalyst is deactivated in water, and slightly opening nitrogen at the front end of the reactor 17 to purge if the catalyst flows out;
4) After all the catalyst is discharged, all valves are closed;
5) After the end of production, the catalyst collector 25 is transferred to a safety site, and the filter bag 26 is treated with the internal catalyst transfer.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model without requiring creative effort by one of ordinary skill in the art. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (9)
1. The feeding mechanism for the inflammable wet catalyst is characterized by comprising a tank body with a conical bottom, wherein a feed inlet is formed in the top of the tank body, and a discharge outlet is formed in the bottom of the tank body;
the top of the tank body is also provided with an isolation device, the feed inlet is positioned in the isolation device, and the isolation device is used for providing nitrogen protection atmosphere when the tank body is fed;
the side of the tank body is provided with an inserting port, the tank body is internally provided with an inserting pipe, the inserting pipe is inserted into the tank body through the inserting port, and one end of the inserting pipe, far away from the tank body, is connected with a nitrogen bubbling valve.
2. The feed mechanism for a flammable wet catalyst of claim 1 wherein said isolation device is a glove box.
3. The feed mechanism for a combustible wet catalyst of claim 1 wherein a feed valve and a feed hopper are disposed at the feed inlet, the feed valve and the feed hopper being located within the isolation device.
4. The charging mechanism for combustible wet catalysts of claim 1, wherein a purge valve is provided on the canister.
5. A reaction apparatus for combustible wet catalysts, comprising a charging mechanism, a reactor and a catalyst collector as claimed in any one of claims 1 to 4,
the top of the reactor is provided with a material inlet, the bottom of the reactor is provided with a material outlet, the material inlet is connected with a discharge hole of the feeding mechanism, and the material outlet is connected with a catalyst collector through a discharge pipe;
the top end of the reactor is provided with a first nitrogen purging valve, the side part of the bottom end of the reactor is provided with a first liquid outlet, and a first catcher is arranged at the first liquid outlet;
the discharging pipe is communicated with a nitrogen purging pipe, and a second nitrogen purging valve is arranged on the nitrogen purging pipe.
6. The reaction device for combustible wet catalysts according to claim 5, wherein a second liquid outlet is formed in the top of the reactor at the other side of the material inlet, a first liquid inlet is further connected to one end of the insertion tube away from the tank body, a liquid inlet valve and a first liquid outlet valve are arranged between the first liquid inlet and the second liquid outlet, and a second catcher is arranged on a pipeline, in which the second liquid outlet valve is communicated with the first liquid outlet valve.
7. The reaction device for combustible wet catalysts as claimed in claim 5, wherein a liquid outlet pipe is arranged at the first liquid outlet, and the liquid outlet pipe is connected with the liquid outlet pipe.
8. The reaction device for combustible wet catalysts as claimed in claim 5, wherein a water injection pipe is arranged outside the reactor, and the discharge pipe is connected with the water injection pipe.
9. The reaction apparatus for combustible wet catalysts of claim 5 wherein said catalyst collector has a filter bag disposed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321700586.3U CN220143336U (en) | 2023-06-30 | 2023-06-30 | Charging mechanism and reaction device for inflammable wet catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321700586.3U CN220143336U (en) | 2023-06-30 | 2023-06-30 | Charging mechanism and reaction device for inflammable wet catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220143336U true CN220143336U (en) | 2023-12-08 |
Family
ID=89008298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321700586.3U Active CN220143336U (en) | 2023-06-30 | 2023-06-30 | Charging mechanism and reaction device for inflammable wet catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220143336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116983907A (en) * | 2023-06-30 | 2023-11-03 | 上海合全药业股份有限公司 | A feeding mechanism, reaction device and method of use for flammable wet catalysts |
-
2023
- 2023-06-30 CN CN202321700586.3U patent/CN220143336U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116983907A (en) * | 2023-06-30 | 2023-11-03 | 上海合全药业股份有限公司 | A feeding mechanism, reaction device and method of use for flammable wet catalysts |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2363448B1 (en) | System and process for injecting catalyst and/or additives into a fluidized catalytic cracking unit | |
| CN220143336U (en) | Charging mechanism and reaction device for inflammable wet catalyst | |
| US8926907B2 (en) | System and process for injecting catalyst and/or additives into a fluidized catalytic cracking unit | |
| JPH0332737A (en) | Distillation column reactor | |
| CN116983907A (en) | A feeding mechanism, reaction device and method of use for flammable wet catalysts | |
| CN217189429U (en) | Emptying device of hydrogenation reactor | |
| CN210345470U (en) | Hazardous waste pretreatment tank | |
| CN212525415U (en) | Dangerous waste recycling system | |
| WO2007104766A1 (en) | A dissolution sample preparation apparatus and method with both mechanical and ultrasonic homogenisation | |
| CN203820916U (en) | Anti-explosion exhaust filtering device for producing heavily-doped silicon single crystal | |
| JP4440377B2 (en) | Supercritical fluid or subcritical fluid reactor | |
| CN214611093U (en) | Hanging basket type traditional Chinese medicine extraction equipment | |
| CN114348362B (en) | Plant carbon black deep processing and packaging integrated machine | |
| JP7295922B2 (en) | transfer mixer | |
| CN201711135U (en) | Continuous feeding device of solid catalyst | |
| CN206184411U (en) | Follow -on fixed bed reactor's catalyst loading ware | |
| CN117531355B (en) | Waste gas treatment device for nitrifying waste acid treatment | |
| CN209989325U (en) | An experimental system for slurry bed Fischer-Tropsch reaction | |
| WO2023283632A1 (en) | High volume industrial vacuum assemblies and methods | |
| US2932658A (en) | Process and apparatus for treating oils with hydrogen | |
| CN119951398A (en) | An automatic control system and method for solid feeding and dissolving configuration | |
| CN221132166U (en) | Poisonous/easily-oxidized solid material sealing and feeding system | |
| CN216093716U (en) | Collection and automatic conveyor of caprolactam laboratory waste liquid | |
| CN215233321U (en) | Ceramic tube load catalyst equipment | |
| CN204307615U (en) | A discharge and separation device for polymer slurry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |