A pre-sulfided catalyst reaction system and method of use

Abstract

The application relates to the technical field of catalytic experiments, and particularly discloses a pre-sulfurization catalyst reaction system and a use method, which comprises a gas supply assembly, a liquid supply assembly, a preheating assembly and a catalysis assembly, the gas supply assembly is connected with a gas channel in parallel, the preheating assembly internally comprises a front-stage spiral pipe and a rear-stage spiral pipe, the width and the length of a static liquid vaporization bin are both greater than the diameter of the front-stage spiral pipe, the bottom surface of the static liquid vaporization bin is a right angle, and a dispersion guide inclined plate is arranged in the static liquid vaporization bin; the process of optimizing the heating conversion of the gas-liquid two-phase into the gas single-phase is achieved, the influence of the unvaporized liquid drops on the catalyst is avoided or reduced, and the optimized structure satisfies the backflush function. The mode satisfies the backflush application, and the discharge channel can also recycle the liquid under the condition that the liquid injection amount is too large, various factors in the whole experimental process are considered, the selection range of the experimental parameters is expanded, and the mode has high applicability to the multi-parameter comparison experiment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of catalytic experimental technology, and particularly relates to a pre-sulfurization catalyst reaction system and a use method thereof. BACKGROUND

[0002] In the coke oven gas desulfurization, the hydrogenation desulfurization catalyst plays a key role, which can convert the stable organic sulfur (such as carbonyl sulfide, carbon disulfide, mercaptan) in the gas into hydrogen sulfide. In the hydrogenation desulfurization evaluation experiment, the catalyst needs to be pre-sulfurized to release carbon disulfide liquid. After preheating, the liquid vaporizes and enters the catalytic reaction device synchronously with the gas. After the gas is treated by the catalyst, the gas needs to be cooled, gas-liquid separated, branched analyzed and discharged to end the whole process.

[0003] During the injection of carbon disulfide, it needs to be vaporized by preheating. During the catalyst evaluation process, various parameters need to be adjusted, such as carrier gas or flue gas parameters, the amount of carbon disulfide liquid, the amount and particle size of the catalyst. The core of the preheater adopts a gas path and a heating element. The gas-liquid two-phase enters the gas path and is heated by the heating element to drive the liquid state into the gas state. Since the preheater pipeline is fixed at present, when the amount of carbon disulfide liquid is increased, it is difficult to control the complete vaporization of carbon disulfide. The carbon disulfide liquid that is not completely vaporized enters the catalyst area and cannot fully mass transfer, resulting in incomplete pre-sulfurization of the catalyst. SUMMARY

[0004] The present application aims to provide a pre-sulfurization catalyst reaction system and a use method thereof, which optimizes the process of heating and converting the gas-liquid two-phase into a gas single-phase, avoids or reduces the influence of liquid droplets that are not vaporized on the catalyst, expands the experimental parameter screening range, meets the backflushing use demand and can be applied to experiments, so as to solve the problems in the above background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A pre-sulfurization catalyst reaction system, comprising a gas supply assembly, a liquid supply assembly, a preheating assembly and a catalytic assembly, wherein the gas supply assembly is connected in parallel with a gas path, the liquid supply assembly is connected in series with the gas path, the other end of the gas path is connected with a recovery unit, the preheating assembly is connected in series with the catalytic assembly, the catalytic assembly is connected with an analyzer, a tail gas tank and a backflushing gas unit at the end thereof, and further comprising a gas-liquid path, wherein the gas-liquid path is connected with the gas path and the preheating assembly at two ends thereof;

[0007] The preheating assembly comprises a front-stage spiral pipe and a rear-stage spiral pipe, the front-stage spiral pipe and the rear-stage spiral pipe are communicated through a static liquid vaporization bin, the width and length of the static liquid vaporization bin are greater than the diameter of the front-stage spiral pipe, the bottom surface of the static liquid vaporization bin is a right angle, a dispersion guide inclined plate is arranged in the static liquid vaporization bin, the front-stage spiral pipe is communicated with the gas-liquid channel, the rear-stage spiral pipe is communicated with a catalytic channel, and the outlet end of the front-stage spiral pipe is communicated with the catalytic channel through a direct channel.

[0008] As a further scheme of the present application, the outlet end of the front-stage spiral pipe is fixedly connected with a connecting flow channel, the outlet end of the connecting flow channel is vertically downward and extends into the interior of the static liquid vaporization bin, and the dispersion guide inclined plate is located on the extension line of the axis of the connecting flow channel.

[0009] As a further scheme of the present application, the front-stage spiral pipe, the rear-stage spiral pipe, the static liquid vaporization bin and the dispersion guide inclined plate are heated by the heating element in the preheating assembly, and the heating intensity of the right-angle end bottom surface of the static liquid vaporization bin is higher than that of the front-stage spiral pipe and the rear-stage spiral pipe.

[0010] As a further scheme of the present application, the pitch of the front-stage spiral pipe is greater than the pitch of the rear-stage spiral pipe.

[0011] As a further scheme of the present application, a valve D is arranged between the front-stage spiral pipe and the connecting flow channel, a valve B is arranged between the direct channel and the catalytic channel, a valve C is arranged between the catalytic channel and the rear-stage spiral pipe, and a valve A is arranged between the static liquid vaporization bin and a discharge channel.

[0012] As a further scheme of the present application, the connecting flow channel is located at a wide spacing between the dispersion guide inclined plate and the inner wall of the static liquid vaporization bin, and the guide flow channel is located at a narrow spacing between the dispersion guide inclined plate and the inner wall of the static liquid vaporization bin.

[0013] As a further scheme of the present application, the surface of the dispersion guide inclined plate is provided with dispersion ribs, and the dispersion ribs are made of the same material as the dispersion guide inclined plate.

[0014] As a further scheme of the present application, a use method of a pre-sulfurization catalyst reaction system comprises the following steps.

[0015] A: through the gas supply assembly to transport the carrier gas or flue gas, through the liquid supply assembly to transport carbon disulfide liquid, the carrier gas carrying liquid through the gas-liquid channel into the front section of the spiral pipe inside, and under the action of the temperature of the front section of the spiral pipe, carbon disulfide vaporizes, the mixed gas formed by the carrier gas carrying vaporized gas and the liquid which has not been vaporized enters the static liquid vaporization warehouse, the gas flow is dispersed at the dispersion guide inclined plate, and is affected by the right-angle turn at the bottom of the static liquid vaporization warehouse, so that part of the liquid which has not been vaporized is difficult to be affected by the gas to climb upward along the wall, the liquid which has not been vaporized is continuously evaporated at the bottom surface of the static liquid vaporization warehouse, and the vaporized liquid is affected by the upward airflow during the upward process and enters the catalytic assembly through the guide flow channel, the rear section of the spiral pipe and the catalytic channel, and reacts in the catalytic assembly, when the liquid discharge is completed, the carrier gas is continuously discharged until there is no residual in the static liquid vaporization warehouse;

[0016] B: through the gas supply assembly to transport the carrier gas or flue gas, through the liquid supply assembly to transport carbon disulfide liquid, the carrier gas carrying liquid through the gas-liquid channel into the front section of the spiral pipe inside, and under the action of the temperature of the front section of the spiral pipe, carbon disulfide vaporizes completely, the gas enters the catalytic channel through the direct connection channel and valve B, and completes the vulcanization reaction in the catalytic assembly through the catalytic channel;

[0017] C: when backflushing, valve B and valve D are closed, backflushing gas enters the rear section of the spiral pipe through the catalytic assembly, the catalytic channel, valve C, and enters the static liquid vaporization warehouse through the guide flow channel, and the gas and residual impurities are discharged through valve A and the discharge channel;

[0018] D: when backflushing, valve C is closed and valve B is opened, backflushing gas enters the rear section of the spiral pipe through the catalytic assembly, the catalytic channel, valve B, the direct connection channel, the front section of the spiral pipe, the gas-liquid channel and the gas channel, and is discharged to the recovery place;

[0019] E: on the basis of method D, valve D and valve A are opened, so that the gas flushes the connection flow channel and the inclined surface of the dispersion guide inclined plate, and is discharged through valve A.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] Gas enters the static liquid vaporization chamber through the connecting channel. The diffused airflow impacts the dispersion guide plate, causing laminar droplets at the center of the connecting channel to impact the surface of the dispersion guide plate. Since the dispersion guide plate is also located within the heating area of ​​the preheating component, the high temperature directly contacts the droplets, driving the carbon disulfide to vaporize rapidly and enter the airflow. Unvaporized droplets fall. Because the bottom of the static liquid vaporization chamber is at a right angle, when the airflow flows along the wall of the static liquid vaporization chamber, it is difficult for the airflow to drive the liquid on the wall of the static liquid vaporization chamber upwards along the other side of the static liquid vaporization chamber. The droplets remaining on the bottom surface of the static liquid vaporization chamber are instead moved horizontally under the influence of the airflow, promoting heat and mass transfer and driving the droplets to vaporize more rapidly. The airflow rising through the other side of the dispersion guide plate cannot completely cover the cavity on the other side of the dispersion guide plate, making it difficult for droplets to rise with the gas and enter the guide channel. Therefore, the retained liquid continues to evaporate and vaporize at the bottom of the static liquid vaporization chamber and flows with the gas. Some droplets will enter the downstream spiral tube through the guide channel for secondary vaporization, thus avoiding or reducing the direct entry of liquid into the catalytic unit. Furthermore, the optimized structure satisfies the backflushing function. This method meets the requirements for backflushing applications, and the discharge channel can also recover liquid in the event of excessive liquid injection. This scheme considers multiple factors throughout the experimental process, expanding the range of experimental parameters and demonstrating high applicability for multi-parameter comparative experiments. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a reaction system based on a pre-sulfurized catalyst;

[0024] Figure 2 This is a schematic diagram of a preheating component in a presulfurized catalyst reaction system;

[0025] Figure 3 This is a schematic diagram of the use of a static liquid vaporization chamber in a pre-sulfurized catalyst reaction system;

[0026] Figure 4 This is a schematic diagram of the structure of a static liquid vaporization chamber in a pre-sulfurized catalyst reaction system;

[0027] In the diagram: 100, Gas duct; 200, Gas-liquid duct; 300, Emission duct; 301, Valve A; 400, Direct connection duct; 401, Valve B; 500, Catalytic duct; 501, Valve C; 1, Gas supply assembly; 2, Liquid supply assembly; 3, Preheating assembly; 31, Front spiral tube; 311, Connecting flow channel; 312, Valve D; 32, Rear spiral tube; 321, Guide flow channel; 33, Static liquid vaporization chamber; 331, Dispersion guide ramp; 4, Catalytic assembly. Detailed Implementation

[0028] Please see Figures 1-4 In this embodiment:

[0029] Existing technology: includes a gas supply component 1, a liquid supply component 2, a preheating component 3, and a catalytic component 4. The gas supply component 1 is connected in parallel with the gas duct 100, the liquid supply component 2 is connected in series with the gas duct 100, the other end of the gas duct 100 is connected to a recovery unit, the preheating component 3 is connected in series with the catalytic component 4, and the end of the catalytic component 4 is connected to an analyzer, an exhaust gas tank, and a backflushing gas unit.

[0030] The gas supply assembly 1 has independent gas supply units for carrier gas and flue gas. Gas enters the interior of the gas duct 100, and liquid enters the interior of the gas duct 100. The gas drives the liquid to enter the interior of the preheating assembly 3 simultaneously. The gas and liquid enter the preheating assembly 3 in a two-phase manner. After the liquid vaporizes, it enters the catalytic assembly 4 along with the gas. The flue gas treated by the catalytic assembly 4 then enters the analyzer and the tail gas tank. After the reaction is completed, flushing gas is introduced through the backflushing gas unit at the end. The flushing gas flushes the pipeline to reduce residue and improve accuracy.

[0031] As can be seen from the above, the entire structure is a pipe system. Under most conditions, due to the smooth and regular pipe walls, the fluid flows in a laminar state within the pipes. If residual liquid is generated due to temperature, flow rate, or liquid volume issues, this liquid will move along the pipe walls under the influence of airflow and enter the catalytic module 4. Therefore, to change this situation and ensure the optimal environment for the catalyst is determined through multi-parameter experiments, this technical solution optimizes the preheating component 3. This allows the preheating component 3 to reduce or prevent unvaporized liquid from entering the catalytic module 4 during parameter adjustment.

[0032] The improvements are as follows: It includes a gas-liquid channel 200, with both ends connected to a gas channel 100 and a preheating component 3, respectively. The preheating component 3 contains a front spiral tube 31 and a rear spiral tube 32, which are connected by a static liquid vaporization chamber 33. The width and length of the static liquid vaporization chamber 33 are both greater than the diameter of the front spiral tube 31. The bottom surface of the static liquid vaporization chamber 33 is a right angle. A dispersion guide inclined plate 331 is installed inside the static liquid vaporization chamber 33. The front spiral tube 31 is connected to the gas-liquid channel 200, and the rear spiral tube 32 is connected to the catalytic channel 500. The outlet end of the front spiral tube 31 is connected to the catalytic channel 500 through a direct connection channel 400. A connecting flow channel 311 is fixedly connected to the outlet end of the front spiral tube 31. The outlet end of the connecting flow channel 311 is vertically downward and extends into the interior of the static liquid vaporization chamber 33. The dispersion guide inclined plate 331 is located on the extension line of the axis of the connecting flow channel 311.

[0033] Improved Principle: The preheating component 3 comprises a front spiral tube 31 and a rear spiral tube 32, connected by a static liquid vaporization chamber 33. The static liquid vaporization chamber 33 serves as the connecting part between the front spiral tube 31 and the rear spiral tube 32, with its width and length exceeding the diameter of the front spiral tube 31. According to Bernoulli's theorem, when gas enters the static liquid vaporization chamber 33 through the connecting channel 311, the laminar flow zone thickens, which can also be understood as airflow diffusion. The diffused airflow impacts the dispersion guide plate 331, causing the laminar droplets at the center of the connecting channel 311 to impact the surface of the dispersion guide plate 331. Since the dispersion guide plate 331 is also located within the heating area of ​​the preheating component 3, the high temperature directly contacts the droplets, driving the carbon disulfide to vaporize rapidly and enter the airflow. As unvaporized droplets descend, because the bottom of the static liquid vaporization chamber 33 is at a right angle, when the airflow flows along the wall of the static liquid vaporization chamber 33, it is difficult for the airflow to drive the liquid on the wall of the static liquid vaporization chamber 33 upwards along the other side wall of the static liquid vaporization chamber 33. The droplets remaining on the bottom surface of the static liquid vaporization chamber 33, on the contrary, undergo horizontal movement under the influence of the airflow, promoting heat and mass transfer and driving the droplets to vaporize faster. The airflow rising on the other side of the dispersion guide plate 331 cannot completely cover the cavity on the other side of the dispersion guide plate 331 because the laminar flow region cannot completely cover the cavity on the other side of the dispersion guide plate 331. Therefore, the droplets are difficult to enter the guide channel 321 with the rising gas. Thus, the stagnant liquid at the bottom of the static liquid vaporization chamber 33 continues to evaporate and vaporize and flows with the gas, while some droplets will enter the downstream spiral tube 32 for secondary vaporization through the guide channel 321, thereby avoiding or reducing the situation where liquid directly enters the catalyst component 4.

[0034] The specific usage method is as follows:

[0035] A: Carrier gas is supplied through gas supply component 1, and liquid carbon disulfide is supplied through liquid supply component 2. The carrier gas carries the liquid through gas-liquid channel 200 into the interior of front spiral tube 31. Under the action of the temperature of front spiral tube 31, carbon disulfide vaporizes. The carrier gas carries the vaporized gas and the unvaporized liquid to form a mixed gas that enters the static liquid vaporization chamber 33. The airflow impacts and disperses at the dispersion guide inclined plate 331. Affected by the right-angle turn at the bottom of the static liquid vaporization chamber 33, some unvaporized liquid is less affected by the gas and rises along the wall. The unvaporized liquid continues to evaporate at the bottom of the static liquid vaporization chamber 33. During the rise of the vaporized liquid, it is affected by the rising airflow and enters the catalytic component 4 through guide channel 321, rear spiral tube 32, and catalytic channel 500 to react. When the liquid is completely discharged, the carrier gas continues to be discharged until there is no residue in the static liquid vaporization chamber 33.

[0036] The advantages of the above method are that after the liquid is completely discharged, there is still carrier gas. The purpose of the carrier gas is to further vaporize the carbon disulfide remaining in the static liquid vaporization chamber 33. The carrier gas can also flush the residual liquid in the gas-liquid channel 200, the direct connection channel 400, the front spiral tube 31, and the connecting flow channel 311 and enter the static liquid vaporization chamber 33 for secondary vaporization until there is no residue in the static liquid vaporization chamber 33, the rear spiral tube 32, and the catalytic channel 500.

[0037] This method effectively improves the utilization rate of carbon disulfide, enhances the accuracy of pre-sulfurization, and thus controls the precision of the final parameters.

[0038] Furthermore, the front spiral tube 31, the rear spiral tube 32, the hydrostatic vaporization chamber 33, and the dispersion guide plate 331 are all heated by the heating element in the preheating component 3. Among them, the heating intensity of the bottom surface of the right-angle end of the hydrostatic vaporization chamber 33 is better than that of the front spiral tube 31 and the rear spiral tube 32.

[0039] Since droplets may accumulate at the bottom, the heating intensity of the bottom surface of the right-angle end of the static liquid vaporization chamber 33 is better than that of the front spiral tube 31 and the rear spiral tube 32. This can accelerate the vaporization speed at the bottom of the static liquid vaporization chamber 33, avoid the generation of a large amount of liquid accumulation, and prevent an increase in the amount of carrier gas wasted.

[0040] The pitch of the front spiral tube 31 is greater than that of the rear spiral tube 32. A valve D312 is installed between the front spiral tube 31 and the connecting channel 311. A valve B401 is installed between the direct connecting channel 400 and the catalytic channel 500. A valve C501 is installed between the catalytic channel 500 and the rear spiral tube 32. A valve A301 is installed between the static liquid vaporization chamber 33 and the discharge channel 300.

[0041] Each preheater has optimal operating parameters. Therefore, for gas-liquid parameters within the optimal operating parameter range, the liquid can directly pass through the front spiral tube 31, the direct connection channel 400, and the catalytic channel 500 to perform catalysis. For unconventional parameters, secondary treatment can be carried out through the static liquid vaporization chamber 33 and the rear spiral tube 32. This method has a wider range of applications and is more suitable for catalyst screening and experimentation.

[0042] The specific method is as follows:

[0043] B: Carrier gas is supplied through gas supply component 1, and liquid carbon disulfide is supplied through liquid supply component 2. The carrier gas carries the liquid through gas-liquid channel 200 into the interior of the front spiral tube 31. Under the action of the temperature of the front spiral tube 31, the carbon disulfide is completely vaporized. The gas enters the catalytic channel 500 through direct connection channel 400 and valve B401, and then enters the catalytic component 4 through catalytic channel 500 to complete the sulfidation reaction.

[0044] The connecting channel 311 is located at the wide gap between the dispersing guide inclined plate 331 and the inner wall of the preheating component 3, and the guiding channel 321 is located at the narrow gap between the dispersing guide inclined plate 331 and the inner wall of the static liquid vaporization chamber 33.

[0045] After the gas discharged through the connecting channel 311 descends, it disperses due to the wide gap between the connecting channel 311 and the inner wall of the preheating component 3, and the preheating component 3 itself has a width and length greater than the connecting channel 311. According to Bernoulli's theorem, the gas disperses after being discharged through the connecting channel 311, and the dispersed gas spreads on the surface of the dispersing guide plate 331, accelerating the vaporization of the droplets. The gas then needs to rise through the other side of the dispersing guide plate 331, thus the rising gas is in a converging state, which is beneficial for the gas to enter the guiding channel 321.

[0046] The surface of the dispersion guide ramp 331 is provided with dispersion ribs, which are made of the same material as the dispersion guide ramp 331. The dispersion ribs can further disperse the gas after it is dispersed from the connecting flow channel 311 and increase the mass transfer area, thereby improving the vaporization effect.

[0047] This technical solution also needs to meet the backflushing requirement. Through pipeline optimization, the specific backflushing method is as follows:

[0048] C: During backflush, close valves B401 and D312. Backflush gas enters the rear spiral tube 32 through catalytic component 4, catalytic channel 500, and valve C501, and enters the static liquid vaporization chamber 33 through guide channel 321. Gas and residual impurities are discharged through valve A301 and exhaust channel 300.

[0049] D: During backflushing, close valve C501 and open valve B401. The backflushing gas passes through catalytic module 4, catalytic channel 500, valve B401, direct connection channel 400, front spiral tube 31, gas-liquid channel 200, and gas channel 100 before being discharged to the recovery point.

[0050] E: Based on method D, open valves D312 and A301 to allow gas to flush the connecting channel 311 and the inclined surface of the dispersion guide plate 331, and then discharge through valve A301.

[0051] The advantages of the above method are as follows: dividing the front spiral tube 31 and the rear spiral tube 32 reduces kinetic energy loss. Simultaneously, dividing the static liquid vaporization chamber 33 into bidirectional backflushing sections avoids the problem of poor wall scouring caused by right-angle airflow changes. Furthermore, by using a liquid transport method that is faster than a gas transport method, there is virtually no residual liquid in the static liquid vaporization chamber 33. Therefore, this method is suitable for backflushing applications. Moreover, the discharge channel 300 can also recover liquid in cases of excessive liquid injection. This scheme considers multiple factors throughout the experimental process, expands the range of experimental parameters, and has extremely high applicability for multi-parameter comparative experiments.

[0052] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A pre-sulfurized catalyst reaction system, comprising a gas supply component (1), a liquid supply component (2), a preheating component (3), and a catalytic component (4), wherein the gas supply component (1) is connected in series with a gas duct (100), the liquid supply component (2) is connected in series with the gas duct (100), the other end of the gas duct (100) is connected to a recovery unit, the preheating component (3) is connected in series with the catalytic component (4), and the end of the catalytic component (4) is connected to an analyzer, a tail gas tank, and a backflushing gas unit, characterized in that: It also includes a gas-liquid channel (200), the two ends of which are respectively connected to a gas channel (100) and the preheating component (3); The preheating component (3) contains a front spiral tube (31) and a rear spiral tube (32). The front spiral tube (31) and the rear spiral tube (32) are connected by a hydrostatic vaporization chamber (33). The width and length of the hydrostatic vaporization chamber (33) are both greater than the diameter of the front spiral tube (31). The bottom surface of the hydrostatic vaporization chamber (33) is a right angle. A dispersion guide inclined plate (331) is provided inside the hydrostatic vaporization chamber (33). The front spiral tube (31) is connected to the gas-liquid channel (200). The rear spiral tube (32) is connected to the catalyst channel (500). The outlet end of the front spiral tube (31) is connected to the catalyst channel (500) through a direct connection channel (400).

2. The reaction system based on a pre-sulfurized catalyst according to claim 1, characterized in that: The outlet end of the front spiral tube (31) is fixedly connected to a connecting channel (311). The outlet end of the connecting channel (311) is vertically downward and extends into the interior of the static liquid vaporization chamber (33). The dispersion guide plate (331) is located on the extension line of the axis of the connecting channel (311).

3. The reaction system based on a pre-sulfurized catalyst according to claim 1, characterized in that: The front spiral tube (31), the rear spiral tube (32), the hydrostatic vaporization chamber (33), and the dispersion guide plate (331) are all heated by the heating element in the preheating component (3). The heating intensity of the bottom surface of the right-angle end of the hydrostatic vaporization chamber (33) is better than that of the front spiral tube (31) and the rear spiral tube (32).

4. The reaction system based on a pre-sulfurized catalyst according to claim 2, characterized in that: A valve D (312) is provided between the front spiral tube (31) and the connecting channel (311), a valve B (401) is provided between the direct connecting channel (400) and the catalytic channel (500), a valve C (501) is provided between the catalytic channel (500) and the rear spiral tube (32), and a valve A (301) is provided between the static liquid vaporization chamber (33) and the discharge channel (300).

5. The reaction system based on a pre-sulfurized catalyst according to claim 2, characterized in that: The connecting channel (311) is located at the wide distance between the dispersing guide plate (331) and the inner wall of the static liquid vaporization chamber (33), and the guiding channel (321) is located at the narrow distance between the dispersing guide plate (331) and the inner wall of the static liquid vaporization chamber (33).

6. The reaction system based on a pre-sulfurized catalyst according to claim 1, characterized in that: The surface of the dispersion guide plate (331) is provided with dispersion ribs, and the dispersion ribs are made of the same material as the dispersion guide plate (331).

7. A method of using a pre-sulfurized catalyst reaction system according to any one of claims 1-6, characterized in that: include: A: Carrier gas or flue gas is delivered through the gas supply component (1), and carbon disulfide liquid is delivered through the liquid supply component (2). The carrier gas or flue gas carries the liquid through the gas-liquid channel (200) into the interior of the front spiral tube (31). Under the action of the temperature of the front spiral tube (31), the carbon disulfide vaporizes. The carrier gas or flue gas carries the vaporized gas and the unvaporized liquid to form a mixed gas that enters the static liquid vaporization chamber (33). The airflow impacts the dispersion guide inclined plate (331) and is affected by the right-angle turn at the bottom of the static liquid vaporization chamber (33), making it difficult for some unvaporized liquid to be affected by the gas and climb up along the wall. The unvaporized liquid continues to evaporate at the bottom of the static liquid vaporization chamber (33). During the rise of the vaporized liquid, it is affected by the rising airflow and enters the catalytic component (4) through the guide channel (321), the rear spiral tube (32), and the catalytic channel (500) to react. When the liquid is completely discharged, the carrier gas or flue gas continues to be discharged until there is no residue in the static liquid vaporization chamber (33). B: Carrier gas or flue gas is delivered through the gas supply assembly (1), and carbon disulfide liquid is delivered through the liquid supply assembly (2). The carrier gas or flue gas carries the liquid through the gas-liquid channel (200) into the interior of the front spiral tube (31). Under the action of the temperature of the front spiral tube (31), the carbon disulfide is completely vaporized. The gas enters the catalytic channel (500) through the direct connection channel (400) and valve B (401), and enters the catalytic assembly (4) through the catalytic channel (500) to complete the sulfidation reaction. C: During backflush, close valves B (401) and D (312). The backflush gas enters the rear spiral tube (32) through the catalytic component (4), catalytic channel (500), and valve C (501), and enters the static liquid vaporization chamber (33) through the guide channel (321). The gas and residual impurities are discharged through valve A (301) and the discharge channel (300). D: During backflush, close valve C (501) and open valve B (401). The backflush gas passes through the catalytic assembly (4), catalytic channel (500), valve B (401), direct connection channel (400), front spiral tube (31), gas-liquid channel (200), and gas channel (100) before being discharged to the recovery point. E: Based on method D, open valve D (312) and valve A (301) to allow gas to flush the connecting channel (311) and the inclined surface of the dispersion guide plate (331), and discharge through valve A (301).

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