CN114534650A - Reactor system for parallel experiment - Google Patents

Abstract

The invention relates to a reactor system for parallel experiments, which comprises: the device comprises a base, a plurality of parallel through channels A, a cylindrical groove and a reaction product, wherein the first end of each through channel A is provided with the cylindrical groove, and the second end of each through channel A is used for flowing out the reaction product; the reaction tube is arranged in the through channel A; a seal located within a cylindrical groove at a first end of the through passage a; the cover is provided with a plurality of channels B, the first ends of the channels B are used for the inflow of reaction raw materials, and the second ends of the channels B are provided with cylindrical grooves; and the connecting piece compresses the base, the cover and the sealing piece tightly to prevent the reaction raw materials from leaking. By adopting the flexible connection mode, the reactor system for the parallel experiment provided by the invention obviously improves the convenience of reactor installation and pressure test and obviously reduces the possibility of pressure leakage.

Description

A Reactor System for Parallel Experiments

technical field

The invention relates to the field of parallel experiments, in particular to a reactor system for parallel experiments.

Background technique

The idea of parallel experiments is widely used in the study of the reaction performance of catalysts. In the process of parallel experiments, using multiple small-scale reactors to screen different catalysts under the same experimental conditions or to evaluate the reaction performance of the same catalytic materials under different experimental conditions can significantly improve experimental efficiency and reduce R&D costs. .

Typically, the connection between the reactor and the feed line is a hard connection with screw tightening. When faced with the simultaneous evaluation of catalysts in several, a dozen or even dozens of reactors in parallel experiments, the hard-connected connection method requires repeated pressure testing of the connection between the reactor and the raw material pipeline, until the pressure drop rate meets a certain level. The experiment can only be carried out at the standard time, which itself is a very time-consuming and energy-consuming process, and with the increase of the reaction pressure (such as 8-10MPa), the time consumed will increase exponentially.

Therefore, for a parallel experimental device, especially a miniaturized, multi-channel parallel experimental device, a convenient and fast reactor system needs to be equipped to reduce the time cost of the reactor installation process.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a reactor system for parallel experiments, which solves the problem of the need for repeated pressure testing after the installation of the reactor in the parallel experiments in the related art, which consumes a lot of time and cost.

According to the present invention, a reactor system for parallel experiments is provided, comprising: a base, the base is provided with a plurality of parallel straight-through channels A, the straight-through channels A include a first end and a second end, and the straight-through The first end of the channel A is on the top surface of the base, the second end of the straight channel A is on the bottom surface of the base, the first end of the straight channel A is provided with a cylindrical groove, the The second end of the straight channel A is used for the outflow of the reaction product; the reaction tube, the outer diameter of the reaction tube is slightly smaller than the diameter of the straight channel A, the reaction tube is placed in the straight channel A, and the reaction tube is placed in the straight channel A. The top end is open, and the bottom end is fixed with a microporous screen, which facilitates the passage of reaction materials such as liquid and gas and prevents the passage of solid substances such as catalysts; the sealing member is an annular rubber rubber ring with a central hole. Located in the cylindrical groove at the first end of the straight channel A, the outer diameter of the sealing member is equal to the diameter of the cylindrical groove, and the diameter of the central hole of the sealing member is the same as that of the outer wall of the reaction tube The diameters are equal; the cover has a plurality of channels B on the cover, the channel B includes a first end and a second end, the first end of the channel B is on the top surface of the cover, and the first end of the channel B is on the top surface of the cover. The two ends are on the bottom surface of the cover, and the second end of the channel B is provided with a cylindrical groove, the diameter of the cylindrical groove is slightly larger than the outer diameter of the reaction tube, and the diameter of the cylindrical groove is larger than that of the reaction tube. The outer diameter of the seal is small, the first end of the channel B is used for the inflow of the reaction material, and the position and number of the channel B are the same as the position and number of the straight channel A; the connecting piece, the connecting piece Squeeze the base, lid, and seal to prevent leakage of the reaction material.

Further, the base is provided with a plurality of parallel channels C, the channels C include a first end and a second end, the first end of the channel C is connected to the straight channel A, and the first end of the channel C is connected to the straight channel A. The opening position of the end is between the bottom surface of the cylindrical groove at the first end of the straight channel A and the second end, and the second end of the channel C is used for the inflow of the dilution gas.

Further, the opening position of the first end of the channel C is closer to the bottom surface of the cylindrical groove at the first end of the straight channel A.

Further, the first end of the straight channel A is provided with a protrusion, the cylindrical groove at the first end of the straight channel A is provided on the top surface of the protrusion, and the channel C is on the side surface of the protrusion communicate with the through channel A.

Further, the straight-through channel A is provided with a resistance heater and a thermocouple, the resistance heater and the thermocouple can control the target temperature and the heating and cooling rate to control the reaction temperature, and the resistance heater and the thermocouple can control the straight-through. The temperature of channel A, in turn, controls the temperature of the reaction tube.

Further, the cover is provided with a plurality of parallel channels D, the first end of the channel D communicates with the channel B, and the opening position of the first end of the channel D is at the first end and the second end of the channel B. Between the ends, the second end of the channel D is used for the inflow of another reaction material.

Further, a protrusion is provided at the first end of the channel B, and the channel D communicates with the channel B on the side of the protrusion.

Further, one corner of the base is provided with a hollow rod, and a corner of the cover is connected to the rod through a rotating shaft, so that the cover can rotate along a plane parallel to the base, and the cover The hollow rod can be used to place the reaction feed line by turning to an angle and moving down to communicate the channel B with the straight channel A.

Further, the connecting member is a bolt, and the base and the cover have corresponding screw holes, and the bolt can connect the base, the cover and the sealing member through the screw holes on the base and the cover. Fixed compression.

Further, the connecting piece is a lock rod and a lock seat, and the lock rod has a rotatable handle and a retractable lock tongue, and the extension and recovery of the lock tongue can be controlled by the rotation of the handle, so the The lock tongue is arranged on the bottom surface of the cover, and the lock seat is arranged on the top surface of the base. The lock seat is a regular-shaped protrusion with a cavity in the middle having the same shape and size as the lock tongue. , through the rotation of the handle on the locking rod, the locking tongue and the locking seat are engaged, so that the base, the cover and the sealing element are pressed tightly.

The reactor system for parallel experiments provided by the present invention solves the problem of repeated pressure testing for the installation of the reactor caused by hard connection, which consumes a lot of time and cost. The flexible connection method is adopted, which significantly improves the installation and testing of the reactor. The convenience of pressure reduction significantly reduces the possibility of pressure leakage.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

Figure 1 shows a first embodiment of a reactor system for parallel experiments according to an embodiment of the present invention.

Figure 2 shows a second embodiment of a reactor system for parallel experiments according to an embodiment of the present invention.

Figure 3 shows a third embodiment of a reactor system for parallel experiments according to embodiments of the present invention.

Figure 4 shows a fourth embodiment of a reactor system for parallel experiments according to an embodiment of the present invention.

Figure 5 shows a fifth embodiment of a reactor system for parallel experiments according to an embodiment of the present invention.

Figure 6 shows a sixth embodiment of a reactor system for parallel experiments according to embodiments of the present invention.

Figure 7 shows a seventh embodiment of a reactor system for parallel experiments according to an embodiment of the present invention.

Detailed ways

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments are part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that the terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should ideally be such data used interchangeably under appropriate circumstances for the embodiments of the invention described herein. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion, eg, a process, method, system, product or device comprising a series of steps or units not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

Figure 1 shows a first embodiment of a reactor system 1 for parallel experiments according to an embodiment of the present invention.

In the first embodiment, the reactor system 1 of the parallel experiment is provided with a base 2, and the base 2 is provided with a plurality of parallel straight channels 3. The upper end opening 4 of the straight channel 3 is on the top surface of the base 2 , and the lower end opening 5 is on the bottom surface of the base 2 . The upper opening 4 is provided with a cylindrical groove 6. The cylindrical groove 6 is used to place the seal 7. The seal 7 is an annular rubber rubber ring. The outer diameter of the seal 7 is equal to the diameter of the cylindrical groove 6, and its height is higher than that of the base. The top surface of 2 is slightly higher. The lower end opening 5 is used for the outflow of the reaction product.

There is a reaction tube 8 in each straight channel 3, the top end of the reaction tube 8 is open, and the bottom end of the reaction tube 8 is fixed with a microporous screen 9. The outer diameter of the reaction tube 8 is slightly smaller than that of the straight channel 3 , and is equal to the diameter of the central hole of the sealing member 7 . Usually, the reaction tube 8 is loaded with catalyst and inert particles, and the liquid or gaseous reaction raw materials enter from the top of the reaction tube 8 and flow out from the bottom end of the reaction tube 8. On the one hand, the microporous screen 9 supports solids such as catalysts. The catalyst and the like are prevented from leaking out of the reaction tube 8 , and on the other hand, the liquid or gaseous reaction raw materials can smoothly pass through the bottom end of the reaction tube 8 .

The reactor system 1 of the parallel experiment is also provided with a cover 10 . The cover 19 is provided with a plurality of channels 11 . The location of channel 11 is the same as the location of through channel 3 . The opening 13 of the lower end of the channel 11 is provided with a cylindrical groove 14. The diameter of the cylindrical groove 14 is slightly larger than the outer diameter of the reaction tube 8 and smaller than the outer diameter of the sealing member 7 to ensure that when the cover 10 is pressed down, the lower end of the channel 11 The opening 13 can just press on the seal 7 . The upper end opening 12 of the channel 11 is used for the inflow of reaction raw materials.

The reactor system 1 of the parallel experiment is also provided with a plurality of bolts 20, the cover 10 and the base 1 have corresponding screw holes 21 and 22, and the bolts 20 pass through the screw holes 21 and the screw holes 22 to connect the base 1, The cover 10 and the seal 7 are compressed. After pressing, when the upper end opening 12 of the channel 11 is passed into the reaction raw material, the sealing member 7 ensures that the reaction raw material will not leak from the contact surface of the cover 10 and the sealing member 7, and at the same time ensures that the reaction raw material will not leak from the sealing member 7 and the sealing member 7. The contact surface of the reaction tube 8 leaks out, and the reaction raw material enters the reaction tube 8 along the channel 11 , flows out from the reaction tube 8 after the reaction, and flows out from the lower end opening 5 of the straight channel 3 .

By adopting the soft connection method of the annular rubber ring made of the rubber material of the sealing member 7, the installation of all the parallel reaction tubes 8 can be completed while the base 2, the cover 10 and the sealing member 7 are pressed tightly, which significantly improves the convenience of the reactor installation. . In addition, the sealing member 7 can ensure that the reaction raw materials with a pressure of up to 15-20 MPa will not leak, which significantly reduces the possibility of pressure leakage, and the pressure test process can usually be completed at one time.

Figure 2 shows a second embodiment of the reactor system 1 for parallel experiments according to an embodiment of the present invention.

According to FIG. 2 , the second embodiment of the reactor system 1 for parallel experiments is compared to the first embodiment of the reactor system 1 for parallel experiments, except that the first embodiment of the reactor system 1 for parallel experiments in FIG. 1 is retained. In addition to the features, some features have been added.

As shown in FIG. 2 , the base 2 is provided with a plurality of parallel channels 15 . One end 16 of the channel 15 communicates with the straight channel 3 and is located between the bottom surface of the cylindrical groove 6 and the lower end opening 5 . The other end 17 of the channel 15 is used for the inflow of the diluent gas, and the diluent gas is generally a gas that does not participate in the reaction, which can be nitrogen or an inert gas.

After the dilution gas is introduced into the channel 15, on the one hand, the reaction product flowing out of the reaction tube 8 is prevented from entering the gap formed by the reaction tube 8 and the straight channel 3, thereby effectively reducing the dead volume of the reactor system 1 of the parallel experiment; The reaction product of the experimental reactor system 1 will be connected to analytical instruments such as chromatography, and the diluent gas with a stable flow rate can ensure that the peak retention time of the reaction product is stable and the peak shape is sharper.

Preferably, one end 16 of the channel 15 is closer to the bottom surface of the cylindrical groove 6, which can more effectively reduce the dead volume of the reactor system 1 for parallel experiments.

Figure 3 shows a third embodiment of the reactor system 1 for parallel experiments according to an embodiment of the present invention.

According to FIG. 3 , the third embodiment of the reactor system 1 for parallel experiments is compared to the second embodiment of the reactor system 1 for parallel experiments, except that the second embodiment of the reactor system 1 for parallel experiments in FIG. 2 is retained. In addition to the features, some features have been added.

As shown in FIG. 3 , a protrusion 18 is provided at the upper end opening 4 of the straight channel 3 , the cylindrical groove 6 is provided on the protrusion 18 , and the channel 15 connecting the dilution gas is provided on the side of the protrusion 18 and is connected with the straight channel 3 .

The arrangement of the protrusions 18 is mainly for the convenience of the connection between the channel 15 and the dilution gas pipeline, as well as the later maintenance.

Figure 4 shows a fourth embodiment of the reactor system 1 for parallel experiments according to an embodiment of the present invention.

According to FIG. 4 , the fourth embodiment of the reactor system 1 for parallel experiments is compared to the third embodiment of the reactor system 1 for parallel experiments, except that the third embodiment of the reactor system 1 for parallel experiments in FIG. 3 is retained. In addition to the features, some features have been added.

As shown in FIG. 4 , a resistance heater 25 and a thermocouple 26 are provided in the through channel 3 . The resistance heater 25 is used to heat the through channel 3 , and the thermocouple 26 is used to measure the temperature of the through channel 3 . Through the resistance heater 25 and the thermocouple 26, the target temperature and the heating and cooling rate of the straight channel 3 can be set, and then the target temperature and the heating and cooling rate of the reaction tube 8 can be controlled.

For chemical reactions, it usually needs to be carried out at a certain temperature. In addition, by controlling different target temperatures and heating and cooling rates, the influence of temperature changes on chemical reactions can also be investigated.

Resistive heater 25 and thermocouple 26 may also be used in other embodiments of the present invention.

Figure 5 shows a fifth embodiment of the reactor system 1 for parallel experiments according to an embodiment of the present invention.

According to FIG. 5 , the fifth embodiment of the parallel experimental reactor system 1 is compared to the fourth embodiment of the parallel experimental reactor system 1 , except that the fourth embodiment of the parallel experimental reactor system 1 in FIG. 4 is retained. In addition to the features, some features have been added.

As shown in FIG. 5 , a protrusion 30 is provided at the upper end opening 12 of the channel 11 . A channel 31 is provided on the side of the protrusion 30, one end 32 of the channel 31 is communicated with the channel 11, and the other end 33 is used for the inflow of another reaction raw material.

Usually, in a parallel reaction, there are more than one raw materials for the reaction, or according to the state of the raw materials (gas or liquid), they are connected to the reaction system through two raw material pipelines. In the fifth embodiment, the channel 11 and the channel 31 can be used to connect different raw materials or raw materials of different physical states, and finally all the raw materials are fully mixed and reacted in the reaction tube 8 .

Of course, the protrusions 30 can be provided with more channels as required to access more reaction raw materials.

The protrusions 30 and channels 31 may also be used in other embodiments of the present invention.

Figure 6 shows a sixth embodiment of the reactor system 1 for parallel experiments according to an embodiment of the present invention.

According to FIG. 6 , the sixth embodiment of the parallel experimental reactor system 1 is compared to the fifth embodiment of the parallel experimental reactor system 1 , except that the fifth embodiment of the parallel experimental reactor system 1 in FIG. 5 is retained. In addition to the features, some features have been added. In order to better illustrate the sixth embodiment, FIG. 6 adopts a perspective view.

As shown in FIG. 6 , a hollow rod 36 is provided at a corner of the base 2, and the cover 10 is connected to the rod 36 through a rotating shaft 50, so that the cover 10 can rotate along a plane parallel to the base 2. When the cover 10 rotates to a certain At an angle, the channel 11 on the cover is aligned with the channel 3 on the base, and at this angle, the cover 10 can be moved downward until the channel 11 is fully communicated with the channel 3, and the bolt 20 passes through the screw hole 21 and the screw hole 22 , press the base 1, cover 10 and seal 7 tightly.

In the hollow rod 36, a reaction raw material pipeline connecting the channel 11 and the channel 31 can be placed, so as to ensure that the reaction raw material pipeline is relatively fixed when the cover 10 is rotated. In the sixth embodiment, two sets of reaction raw material lines 37 and 38 may be placed. In addition, it should be noted that the reaction feed lines 37 and 38 are not components of the reactor system 1 of the parallel experiment according to the embodiment of the present invention.

Figure 7 shows a seventh embodiment of a reactor system 1 for parallel experiments according to an embodiment of the present invention.

Compared with the sixth embodiment of the parallel experimented reactor system 1 in FIG. 6 , the seventh embodiment of the parallel experimented reactor system 1 in FIG. 7 retains most of the features except the base 2 , the cover 10 and the seal The connection method of the component 7 is changed from the bolt 20 and the screw hole 21 in FIG. 6 to the lock rod 40 and the lock seat 41 .

As shown in FIG. 7 , the lock lever 40 has a rotatable handle 43 and a retractable lock tongue 42. By rotating the handle 43 on the lock lever 40, the extension and retraction of the lock tongue 42 can be controlled. The lock tongue 42 is arranged on the on the bottom surface of the cover 10 . The lock seat 41 is arranged on the base 2 and is a regular-shaped protrusion. There is a hollow cavity 44 in the middle of the lock seat 41 . The shape and size of the cavity 44 are the same as the shape and size of the lock tongue 42 .

When the cover 10 rotates to a certain angle around the hollow rod 36 through the rotating shaft 50, the channel 11 on the cover is aligned with the channel 3 on the base, and the lock tongue 42 is recovered by rotating the handle 43 on the lock rod 40. At this angle Then, the cover 10 moves downward until the channel 11 is completely communicated with the channel 3, and then the lock tongue 42 is extended through the rotation of the handle 43 on the lock lever 40, and the lock tongue 42 just extends into the cavity of the lock seat 41. The tongue-shaped arc structure of 42 makes the force between the lock tongue 42 and the lock base 41 gradually increase during the extension process of the lock tongue 42, and finally the base 2, the cover 10 and the sealing member 7 are pressed tightly.

Claims (10)

1. the reactor system of a parallel experiment, is characterized in that, comprises: A base, the base is provided with a plurality of parallel through channels A, the through channels A include a first end and a second end, the first end of the through channels A is on the top surface of the base, the through channels A The second end of the straight channel A is on the bottom surface of the base, the first end of the straight channel A is provided with a cylindrical groove, and the second end of the straight channel A is used for the outflow of the reaction product; Reaction tube, the outer diameter of the reaction tube is slightly smaller than the diameter of the straight channel A, the reaction tube is placed in the straight channel A, the top of the reaction tube is open, and the bottom end is fixed with a microporous screen, which is convenient for liquid , gas and other reaction raw materials pass through and prevent solid substances such as catalysts from passing through; A sealing element, the sealing element is an annular rubber rubber ring with a central hole, the sealing element is located in the cylindrical groove at the first end of the straight channel A, and the outer diameter of the sealing element is the same as that of the cylindrical The diameters of the shaped grooves are equal, and the diameter of the central hole of the seal is equal to the diameter of the outer wall of the reaction tube; A cover, the cover has a plurality of channels B, the channel B includes a first end and a second end, the first end of the channel B is on the top surface of the cover, and the second end of the channel B is in The bottom surface of the cover and the second end of the channel B are provided with a cylindrical groove, the diameter of the cylindrical groove is slightly larger than the outer diameter of the reaction tube, and the diameter of the cylindrical groove is larger than that of the seal The outer diameter of the piece is small, the first end of the channel B is used for the inflow of the reaction material, and the position and number of the channel B are the same as the position and number of the straight channel A; A connecting piece that compresses the base, the cover and the sealing piece to prevent the leakage of the reaction material. 2. The reactor system for parallel experiments according to claim 1, wherein the base is provided with a plurality of parallel channels C, the channels C include a first end and a second end, and the channel C has a The first end communicates with the straight channel A, the opening of the first end of the channel C is located between the bottom surface of the cylindrical groove at the first end of the straight channel A and the second end, and the first end of the channel C The two ends are used for the inflow of dilution gas. 3 . The reactor system for parallel experiments according to claim 2 , wherein the opening position of the first end of the channel C is closer to the bottom surface of the cylindrical groove at the first end of the straight channel A. 4 . 4. The reactor system for parallel experiments according to the preceding claim 2 or 3, characterized in that the first end of the straight channel A is provided with a protrusion, and the first end of the straight channel A has a cylindrical groove Provided on the top surface of the protrusion, the channel C communicates with the through channel A on the side of the protrusion. 5. The reactor system for parallel experiments according to any one of the preceding claims, wherein the straight channel A is provided with a resistance heater and a thermocouple which can control the target The temperature and the heating and cooling rate control the reaction temperature, and the resistance heater and the thermocouple can control the temperature of the straight channel A, thereby controlling the temperature of the reaction tube. 6. The reactor system for parallel experiments according to any one of the preceding claims, characterized in that the cover is provided with a plurality of parallel channels D, the first ends of the channels D communicating with the channels B, The opening of the first end of the channel D is located between the first end and the second end of the channel B, and the second end of the channel D is used for another reaction raw material to flow in. 7. The reactor system for parallel experiments according to the preceding claim 6, characterized in that a protrusion is provided at the first end of the channel B, and the channel D is flanked with the channel B by the protrusion. Connected. 8. The reactor system for parallel experiments according to any one of the preceding claims, wherein a corner of the base is provided with a hollow rod, and a corner of the cover is connected to the On the rod, the cover can be rotated along a plane parallel to the base, the cover can be turned to a certain angle and moved downward to make the channel B communicate with the straight channel A, the hollow rod Can be used to place reaction feed lines. 9. The reactor system for parallel experiments according to any one of the preceding claims, wherein the connecting member is a bolt, the base and the cover have corresponding screw holes, and the bolt is The base, the cover and the seal can be fixed and pressed through the screw holes on the base and the cover. 10. The reactor system for parallel experiments according to claims 1-8, wherein the connecting member is a lock rod and a lock seat, and the lock rod is provided with a rotatable handle and a retractable lock tongue, The extension and retraction of the lock tongue can be controlled by the rotation of the handle, the lock tongue is arranged on the bottom surface of the cover, the lock seat is arranged on the top surface of the base, and the lock seat is A regular-shaped protrusion has a cavity in the middle with the same shape and size as the lock tongue, and the lock tongue and the lock seat are engaged by the rotation of the handle on the lock rod, so that the base, the cover and the seal are engaged. Pieces pressed.

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