Reactor device for enhancing contact between gas molecules and solid catalyst particles in slurry

Abstract

The invention provides a reactor device for enhancing contact between gas molecules and solid catalyst particles in slurry. According to the conception, a rotor system capable of rotating at a high speed is arranged in a cavity of the reaction kettle, slurry containing solid catalyst particles is injected into the reactor from a liquid inlet tightly attached to a rotating shaft in the reaction process and is crushed into small liquid drops from inside to outside in the high-speed rotation process, and gas-liquid contact between gas molecules diffused from outside to inside is increased; effective contact between gas molecules and solid catalyst particles in the slurry is effectively improved, and then the gas molecules enter a rotor system of the reactor again through a heat preservation and external circulation liquid path system for gas-liquid contact and reaction, so that the mass transfer efficiency is improved, and water molecules generated in the Fischer-Tropsch synthesis reaction can quickly leave the surface of the catalyst; therefore, the Fischer-Tropsch synthesis reaction activity of the catalyst is improved, and the CO2 selectivity is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of reactors, and particularly relates to a reactor device for enhancing the contact between gas molecules and solid catalyst particles in a slurry. Background Art

[0002] Fixed bed reactors and slurry bed reactors are two types of reactors commonly used for evaluating the reaction performance of catalysts. In a fixed bed reactor, the flow of gas in the catalyst bed is close to plug flow, so the reaction rate is fast, and it has advantages such as less catalyst consumption, smaller equipment volume, and low wear of solid catalyst particles. Therefore, it is widely used in industrial production and basic research fields. However, hot spots are likely to occur in the catalyst bed of a fixed bed reactor during the reaction process, resulting in a temperature runaway phenomenon in the bed. This not only causes the temperature in the reactor to get out of control, but also easily leads to catalyst deactivation [Du Bing, et al. Clean Coal Technology, 2016, 22(5): 35 - 40.]. Therefore, the above-mentioned temperature runaway phenomenon in the bed must be solved by installing high - thermal - conductivity aluminum foil in the reaction tube or mixing with a large amount of diluents with good thermal conductivity, which not only occupies a large amount of effective volume in the reactor, but also greatly increases the design and use costs of the fixed bed reactor.

[0003] For a slurry bed reactor, the feed gas generally enters the reactor from the bottom through a gas distributor, and then diffuses to the surface of the catalyst particles suspended in the liquid phase for reaction to produce products. Compared with a fixed bed reactor, a slurry bed reactor can better control the temperature and avoid the occurrence of hot spot phenomena. However, due to the low reactant concentration (solubility limitation) and low diffusion efficiency of reactants and products in the liquid medium (mass transfer limitation) in a slurry bed reactor, the slurry bed reactor has the limitation of large mass transfer resistance, resulting in a lower reaction rate of the catalyst in the slurry bed reactor. For example: experimental results show that under the same conditions, the CO conversion rate of the precipitated iron catalyst in a fixed bed reactor is higher than that in a slurry bed reactor [Bukur D B, et al, Ind. Eng. Chem. Res, 2005, 44(16). 6038 - 6044]. At the same time, the commonly used Fe - based Fischer - Tropsch synthesis catalyst currently has a high CO2 selectivity in both fixed bed and slurry bed reactors, which is not conducive to the efficient utilization of carbon resources and CO2 emission reduction.

[0004] Therefore, although mixing catalyst solid particles with a slurry can effectively solve the problem of hot spots in the bed (using a slurry bed reactor), it faces the problem of mass transfer resistance of gas molecules in the slurry, which limits the reaction performance of the catalyst and cannot effectively reduce the CO2 selectivity. Summary of the Invention

[0005] In view of the above problems, in order to improve the mass transfer efficiency of gas molecules in the slurry and increase the effective contact between reactant molecules and solid catalyst particles, the present invention proposes a reactor device for enhancing the contact between gas molecules and solid catalyst particles in the slurry.

[0006] The concept of the present invention is to provide a rotatable rotor system in the chamber of the reaction kettle. During the reaction process, the slurry containing solid catalyst particles is injected into the reactor through the liquid inlet close to the rotating shaft and broken into small droplets from the inside out during high-speed rotation, which greatly increases the gas-liquid contact with the gas molecules diffusing from the outside in. At the same time, the presence of the static disk further prolongs the gas-liquid contact time, making the mass transfer performance in the reactor more excellent. During the reaction process, the stirring paddle connected to the rotating shaft can stir the slurry at the bottom of the reaction kettle simultaneously, preventing the solid catalyst particles from accumulating and depositing at the bottom of the reaction kettle, and evenly dispersing them in the slurry. Then, through heat preservation and the external circulation liquid path system, they re-enter the reactor rotor system for gas-liquid contact and reaction, effectively improving the effective contact between gas molecules and solid catalyst particles in the slurry, enhancing the mass transfer efficiency, and facilitating the rapid departure of the water molecules generated by the Fischer-Tropsch synthesis reaction from the catalyst surface, thereby improving the Fischer-Tropsch synthesis reaction activity of the catalyst and reducing the CO2 selectivity.

[0007] The reactor device for enhancing the contact between gas molecules and solid catalyst particles in the slurry of the present invention includes: a reaction kettle housing 3, the upper end opening of the reaction kettle body 3 is hermetically covered with a top cover 45, and the top cover 45 and the reaction kettle housing 3 enclose a reaction kettle accommodation chamber 1; a rotating shaft 7 passes through the center of the top cover 45, the upper end of the rotating shaft 7 is connected to a rotating motor 13, and the lower end is connected to a stirring paddle 25 located at the bottom of the reaction kettle accommodation chamber 1. The liquid outlet pipe 12 at the bottom of the reaction kettle accommodation chamber 1 is connected to a first valve 10. It is characterized in that: in the reaction kettle accommodation chamber 1, the lower surface of the top cover 45 is connected to a static disk 21, the rotating shaft 7 is connected to a dynamic disk 24, and the static disk 21 is located above the dynamic disk 24; the direction close to the rotating shaft 7 is defined as the inner side, and the opposite is the outer side;

[0008] Annular baffle plates 23 are provided on the upper surface of the dynamic disk 24 and the lower surface of the static disk 21. From the inside out, the baffle plates 23 of the dynamic disk 24 and the baffle plates 23 of the static disk 21 are arranged alternately; there is a gap between the top end of the baffle plate 23 and the relative static disk 21 or dynamic disk 24; through holes for the slurry containing solid catalyst particles to pass through are distributed on the baffle plate 23;

[0009] An opening for the rotating shaft 7 and the liquid inlet pipe 18 to pass through is provided in the central part of the static disk 21; below the static disk 21, the static disk 21 and the reaction kettle housing 3 enclose a first airtight area; above the static disk 21, the static disk 21 and the top cover 45 enclose a second airtight area; the first airtight area and the second airtight area are only connected through the above-mentioned opening;

[0010] The air outlet pipe 6 passes through the top cover 45 and opens in the second airtight area, and the air inlet pipe 5 passes through the top cover 45 and the static plate 21 and opens in the first airtight area; a liquid inlet pipe 18 is provided on the top cover 45, and the opening of the liquid inlet pipe 18 is located on the inner side of the innermost baffle of the dynamic plate;

[0011] The spaces between the baffles 23 are connected by the gaps to form gas channels for the reaction gas to pass through.

[0012] More specifically, a heating wire 19 is disposed on the periphery of the reactor body 3 , and a heat-insulating shell 4 is disposed on the periphery of the heating wire 19 .

[0013] More specifically, the top cover 45 is connected to the rotating motor 13 via a connecting bridge 46, and the rotor of the rotating motor 13 is connected to the rotating shaft 7 via a driving belt 14; the heat-insulating shell 4 is connected to the lifting motor 15; a vertical screw is installed on the lifting motor 15, and the screw is engaged with the connecting bridge 46 between the top cover 45 and the rotating motor 13. The lifting motor 15 can control the up and down movement of the top cover 45 and the rotating motor 13 by rotating the screw.

[0014] More specifically, the liquid outlet pipe 12 is connected to the heat preservation external circulation liquid circuit system 44 through the first valve 10, and the liquid inlet pipe 18 is connected to the heat preservation external circulation liquid circuit system 44 through the second valve 9;

[0015] The heat-insulating external circulation liquid circuit system 44 comprises a liquid circuit formed by sequentially connecting a first valve 10, a high-temperature circulation gear pump 27, a heating tank 26 and a second valve 9, so that the slurry discharged through the liquid outlet pipe 12 at the bottom of the reactor chamber 1 flows through the first valve 10, the high-temperature circulation gear pump 27, the heating tank 26 and the second valve 9 in sequence and returns to the liquid inlet pipe 18; a discharge valve 31 is provided on the liquid circuit between the first valve 10 and the high-temperature circulation gear pump 27; and a second pressure gauge 28 is provided on the liquid circuit between the high-temperature circulation gear pump 27 and the heating tank 26.

[0016] More specifically, the air inlet pipe 5 and the air outlet pipe 6 are connected to the external air path system 43; the air path system 43 includes an air inlet channel and an air outlet channel; the air inlet channel sequentially passes the external gas into the reactor chamber 1 through the pressure reducing valve 42, the front pressure gauge 41, the third valve 39, the flow meter 40, the fourth valve 38, the air inlet pipe heating device 37 and the air inlet pipe 5; the air outlet channel sequentially passes the gas inside the reactor chamber 1 to the outside through the air outlet pipe 6, the hot trap 33, the cold trap 34, the tail pressure gauge 36 and the back pressure valve 35.

[0017] More specifically, a first pressure gauge 17 and an explosion-proof device 16 are provided on the top cover 45 .

[0018] More specifically, a first platinum thermal resistor 11 is installed at the bottom of the reactor shell 3 , and a second platinum thermal resistor 29 is installed at the heating tank 26 .

[0019] More specifically, a first thermometer 30 is installed on the liquid path between the heating tank 26 and the second valve 9; a second thermometer 32 is installed on the liquid path between the first valve 10 and the high-temperature circulation gear pump 27.

[0020] More specifically, a filter element 20 is sleeved at the opening of the air outlet pipe 6 in the second airtight area; a sealing ring 22 is provided at the joint between the lower end of the static disk 21 and the reaction kettle body 3, which can prevent the reaction gas from being discharged from the first airtight area before fully contacting the slurry containing solid catalyst particles.

[0021] More specifically, the opening of the liquid inlet pipe 18 is closely attached to the rotating shaft 7.

[0022] More specifically, a speed measuring ring 8 is installed at the top of the rotating shaft 7.

[0023] The working steps of the present invention include:

[0024] S1. During the reaction, the slurry carrying solid catalyst particles is injected from the liquid inlet pipe 18 into the middle of the moving disk 24 in the reaction kettle accommodation cavity 1.

[0025] S2. The rotating shaft 7 drives the moving disk 24 to rotate under the drive of the rotating motor 13. At this time, the slurry is thrown towards the outer edge of the moving disk 24 under the action of centrifugal force, and impacts the baffle plates of the moving disk and the static disk several times during this process, and then is highly atomized into small droplets; at this time, the reaction raw material gas enters the gas path system 43 under the action of external pressure, enters the first airtight area of the reaction kettle accommodation cavity 1 through the opening of the air inlet pipe 5, and diffuses towards the inside of the moving disk 24 along the gap between the baffle plate 23 and the static disk 21 and the moving disk 24, so as to strengthen the contact with the slurry, and react with the solid catalyst particles during this process.

[0026] S3. The slurry containing solid catalyst particles is thrown to the inner wall of the reaction kettle and flows along the inner wall of the reaction kettle accommodation cavity 1 to the bottom. The stirring paddle 25 stirs the slurry at the bottom of the reaction kettle accommodation cavity 1 to prevent the solid catalyst particles from enriching and depositing, and evenly disperses them in the slurry.

[0027] S4. The slurry flows out from the liquid outlet pipe 12, and after being heated and circulated through the heat preservation external circulation liquid path system 44, it re-enters the reaction kettle accommodation cavity 1 through the liquid inlet pipe 18 for recycling.

[0028] The beneficial effects produced by the present invention are as follows: 1) It can effectively improve the contact between gas molecules and solid catalyst particles in the slurry, increase the mass transfer efficiency, and thus is beneficial to improving the reaction activity of the catalyst and modulating the product selectivity (reducing the CO2 selectivity); 2) The reaction device described in the present invention has a simple structure, is easy to maintain, clean and repair. Description of the Drawings

[0029] Figure 1 This is a schematic structural diagram of a reactor device for enhancing the contact between gas molecules and solid catalyst particles in a slurry according to the present invention.

[0030] Figure 2 Schematic internal structure diagram of the reaction kettle according to the present invention.

[0031] Figure 3 Schematic structural diagram of the sealing ring according to the present invention.

[0032] Figure 4 Schematic diagram of the reaction system according to the present invention. Specific embodiments

[0033] The following will describe in detail the specific embodiments of the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining and illustrating the embodiments of the present invention, and are not used to limit the embodiments of the present invention.

[0034] Embodiment 1

[0035] A reactor device for enhancing the contact between gas molecules and solid catalyst particles in a slurry includes a reaction kettle housing 3. The upper opening of the reaction kettle body 3 is hermetically covered with a top cover 45. The top cover 45 and the reaction kettle housing 3 enclose a reaction kettle accommodation chamber 1. A rotating shaft 7 passes through the center of the top cover 45. The upper end of the rotating shaft 7 is connected to a rotating motor 13, and the lower end is connected to a stirring paddle 25 located at the bottom of the reaction kettle accommodation chamber 1. The liquid outlet pipe 12 at the bottom of the reaction kettle accommodation chamber 1 is connected to a first valve 10. It is characterized in that: in the reaction kettle accommodation chamber 1, the lower surface of the top cover 45 is connected to a static disk 21, and the rotating shaft 7 is connected to a moving disk 24. The static disk 21 is located above the moving disk 24. The direction close to the rotating shaft 7 is defined as the inner side, and the opposite is the outer side.

[0036] Annular baffle plates 23 are provided on the upper surface of the moving disk 24 and the lower surface of the static disk 21. From the inside to the outside, the baffle plates 23 of the moving disk 24 and the baffle plates 23 of the static disk 21 are arranged alternately. There is a gap between the top end of the baffle plate 23 and the opposite static disk 21 or moving disk 24. Through holes for the slurry containing solid catalyst particles to pass through are distributed on the baffle plate 23.

[0037] An opening for the rotating shaft 7 and the liquid inlet pipe 18 to pass through is provided in the central part of the static disk 21. Below the static disk 21, a first airtight area is enclosed by the static disk 21 and the reaction kettle housing 3. Above the static disk 21, a second airtight area is enclosed by the static disk 21 and the top cover 45. The first airtight area and the second airtight area are only communicated through the said opening.

[0038] The air outlet pipe 6 passes through the top cover 45 and opens in the second airtight area, and the air inlet pipe 5 passes through the top cover 45 and the static disk 21 and opens in the first airtight area; a liquid inlet pipe 18 is passed through the top cover 45, and the opening of the liquid inlet pipe 18 is located on the inner side of the innermost baffle of the moving disk, and the opening of the liquid inlet pipe 18 is close to the rotating shaft 7.

[0039] The spaces between the baffles 23 are connected by the gaps to form gas channels for the reaction gas to pass through.

[0040] A heating wire 19 is disposed on the periphery of the reactor body 3 , and a heat-insulating shell 4 is disposed on the periphery of the heating wire 19 .

[0041] The top cover 45 is connected to the rotating motor 13 via a connecting bridge 46, and the rotor of the rotating motor 13 is connected to the rotating shaft 7 via a driving belt 14; the heat-insulating shell 4 is connected to the lifting motor 15; a vertical screw is installed on the lifting motor 15, and the screw is engaged with the connecting bridge 46 between the top cover 45 and the rotating motor 13. The lifting motor 15 can control the up and down movement of the top cover 45 and the rotating motor 13 by rotating the screw.

[0042] The liquid outlet pipe 12 is connected to the heat preservation external circulation liquid circuit system 44 through the first valve 10, and the liquid inlet pipe 18 is connected to the heat preservation external circulation liquid circuit system 44 through the second valve 9;

[0043] The heat-insulating external circulation liquid circuit system 44 comprises a liquid circuit formed by sequentially connecting a first valve 10, a high-temperature circulation gear pump 27, a heating tank 26 and a second valve 9, so that the slurry discharged through the liquid outlet pipe 12 at the bottom of the reactor chamber 1 flows through the first valve 10, the high-temperature circulation gear pump 27, the heating tank 26 and the second valve 9 in sequence and returns to the liquid inlet pipe 18; a discharge valve 31 is provided on the liquid circuit between the first valve 10 and the high-temperature circulation gear pump 27; and a second pressure gauge 28 is provided on the liquid circuit between the high-temperature circulation gear pump 27 and the heating tank 26.

[0044] The air inlet pipe 5 and the air outlet pipe 6 are connected to the external air path system 43; the air path system 43 includes an air inlet channel and an air outlet channel; the air inlet channel sequentially passes the external gas into the reactor chamber 1 through the pressure reducing valve 42, the front pressure gauge 41, the third valve 39, the flow meter 40, the fourth valve 38, the air inlet pipe heating device 37 and the air inlet pipe 5; the air outlet channel sequentially passes the gas inside the reactor chamber 1 to the outside through the air outlet pipe 6, the hot trap 33, the cold trap 34, the tail pressure gauge 36 and the back pressure valve 35.

[0045] The top cover 45 is provided with a first pressure gauge 17 and an explosion-proof device 16 .

[0046] A first platinum thermal resistor 11 is installed at the bottom of the reactor shell 3 , and a second platinum thermal resistor 29 is installed at the heating tank 26 .

[0047] A first thermometer 30 is installed on the liquid path between the heating tank 26 and the second valve 9; a second thermometer 32 is installed on the liquid path between the first valve 10 and the high-temperature circulation gear pump 27.

[0048] A filter element 20 is sleeved at the opening of the gas outlet pipe 6 in the second airtight area; a sealing ring 22 is provided at the joint between the lower end of the static disk 21 and the reaction kettle body 3, which can prevent the reaction gas from being discharged from the first airtight area before fully contacting the slurry containing solid catalyst particles.

[0049] A speed measuring ring 8 is installed at the top of the rotating shaft 7.

[0050] Adopt Figure 4 The reaction device system shown is used to evaluate the Fischer-Tropsch synthesis reaction performance of the Fe-based catalyst. First, through the lifting motor, the top cover 45 is lifted, 2L of liquid paraffin (AR, Sinopharm Chemical Reagent Co., Ltd.) is added to the reaction kettle accommodation chamber 1, and then 10g of Fe-based catalyst is added. The top cover 45 is lowered and sealed by the lifting motor. After leak inspection, the high-temperature circulation gear pump 27 is turned on, so that the liquid paraffin with the Fe-based catalyst flows out from the liquid outlet pipe 12, flows through the high-temperature circulation gear pump 27 and the heating tank 26, and then flows into the reaction kettle accommodation chamber from the liquid inlet pipe 18. The rotation speed of the rotating shaft is set to 500 r / min, so that the liquid paraffin containing the Fe-based catalyst flows from the inside to the outside along the baffle plate 23 under the action of centrifugal force, and a large number of small liquid droplets containing solid catalyst particles are formed. After being thrown out of the baffle plate 23, they flow along the inner wall of the reaction kettle accommodation chamber 1 to the bottom. The pressure reducing valve 42, flowmeter 40, and back pressure valve 35 of the reaction device gas path system 43 are controlled, and the syngas (H2 / CO = 1.5) is introduced into the reaction kettle accommodation chamber 1 through the inlet pipe 5 (the flow rate is set to 30 ml / min), and the pressure in the reaction kettle reaches 1.5 MPa. The tail gas is discharged from the gas outlet pipe 6 and passes through the heat trap 33 and cold trap 34 in sequence and then is exhausted. The temperatures of the reaction kettle, the heating tank 26 in the heat preservation external circulation liquid path system 44, and the gas pipeline heating device 37 are adjusted. After the reaction temperature reaches 260 °C, the reaction tail gas is introduced into the gas chromatograph for on-line analysis.

[0051] Comparative Example 1

[0052] As a comparison, the Fischer-Tropsch synthesis reaction performance of the Fe-based catalyst used in Example 1 was evaluated by using a fixed-bed reactor. 1g of Fe-based catalyst was not diluted with a diluent and was sequentially loaded into the reaction tube in the order of quartz wool - quartz sand - quartz wool - catalyst - quartz wool - quartz sand - quartz wool, and the catalyst was controlled to be filled in the constant temperature area of the reaction tube. The Fischer-Tropsch synthesis reaction conditions were T = 260 °C, P = 1.5 MPa, H2 / CO = 1.5 (flow rate 30 ml / min). The reaction tail gas was introduced into the gas chromatograph for on-line analysis after passing through the heat trap and cold trap in sequence.

[0053] Example 2

[0054] The gaseous products were analyzed online by gas chromatography (Agilent 6890N), using a thermal conductivity detector (TCD) and a flame ionization detector (FID) as detectors, respectively. After separation of H2, CO, CH4, and CO2 in the gaseous products by Porapak Q and 5A packed columns, they were analyzed by the TCD detector. After separation of C1-C5 light hydrocarbons by an HPAl / S capillary chromatographic column, they were analyzed by the FID detector. Using Ar as the internal standard, the catalytic performance of the Fe-based catalyst was analyzed using the CO conversion rate, CO2, and C 5+ product selectivity index.

[0055] The CO conversion rate is shown in formula (1):

[0056]

[0057] The CO2 selectivity is shown in formula (2):

[0058]

[0059] The C1-C4 hydrocarbon selectivity is shown in formula (3):

[0060]

[0061] C 5+ The C hydrocarbon selectivity is shown in formula (4):

[0062]

[0063] Using the reaction device described in Example 1, after reacting for 25 h, the CO conversion rate of the catalyst was 23.39%, and the C 5+ selectivity was 32.02%, and the CO2 selectivity was 27.7%. Using the fixed-bed reactor described in Comparative Example 1, the CO conversion rate of the same Fe-based catalyst was 19.53%, and the C 5+ selectivity was 47.65%, while the CO2 selectivity was 39.31%. By comparison, it can be found that using the reaction device described in this invention patent can significantly improve the CO conversion rate of the Fe-based catalyst, greatly reduce the CO2 selectivity, and change the hydrocarbon product selectivity (for example: it is beneficial to generate a higher proportion of light hydrocarbon products (C 1-4 ))).

[0064] The content described in the embodiments of this specification is only an enumeration of the implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms stated in the embodiments. The protection scope of the present invention also extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept of the present invention.

Claims

1. A reactor device for enhancing the contact between gas molecules and solid catalyst particles in a slurry, comprising a reaction kettle housing (3). The upper opening of the reaction kettle body (3) is hermetically covered with a top cover (45). The top cover (45) and the reaction kettle housing (3) enclose a reaction kettle accommodation cavity (1). A rotating shaft (7) penetrates through the center of the top cover (45). The upper end of the rotating shaft (7) is connected to a rotating motor (13), and the lower end is connected to a stirring paddle (25) located at the bottom of the reaction kettle accommodation cavity (1). The liquid outlet pipe (12) at the bottom of the reaction kettle accommodation cavity (1) is connected to a first valve (10), and it is characterized in that: Inside the reaction kettle accommodation cavity (1), the lower surface of the top cover (45) is connected to a static disk (21), and the rotating shaft (7) is connected to a dynamic disk (24). The static disk (21) is located above the dynamic disk (24). The direction close to the rotating shaft (7) is defined as the inner side, and the opposite is the outer side. Annular baffle plates (23) are provided on the upper surface of the dynamic disk (24) and the lower surface of the static disk (21). From the inside to the outside, the baffle plates (23) of the dynamic disk (24) and the baffle plates (23) of the static disk (21) are arranged alternately. There is a gap between the top end of the baffle plate (23) and the opposite static disk (21) or dynamic disk (24). Through holes for the slurry containing solid catalyst particles to pass through are distributed on the baffle plate (23). A central part of the static disk (21) is provided with an opening for the rotating shaft (7) and the liquid inlet pipe (18) to pass through. Below the static disk (21), the static disk (21) and the reaction kettle housing (3) enclose a first airtight area. Above the static disk (21), the static disk (21) and the top cover (45) enclose a second airtight area. The first airtight area and the second airtight area are only connected through the said opening. The gas outlet pipe (6) penetrates through the top cover (45) and opens in the said second airtight area. The gas inlet pipe (5) penetrates through the top cover (45) and the static disk (21), and opens in the said first airtight area. A liquid inlet pipe (18) penetrates through the top cover (45), and the opening of the liquid inlet pipe (18) is located inside the baffle plate at the innermost side of the dynamic disk. The spaces between the baffle plates (23) are connected through the said gaps to form a gas channel for the reaction gas to pass through.

2. The reactor device for enhancing the contact between gas molecules and solid catalyst particles in a slurry according to claim 1, characterized in that: There is a heating wire (19) outside the reaction kettle body (3), and there is a heat insulation outer shell (4) outside the heating wire (19).

3. The reactor device for enhancing the contact between gas molecules and solid catalyst particles in a slurry according to claim 1, characterized in that: The top cover (45) is connected to the rotating motor (13) through a connecting bridge (46). The rotor of the rotating motor (13) is drivingly connected to the rotating shaft (7) through a driving belt (14). The heat insulation outer shell (4) is connected to a lifting motor (15). A vertical lead screw is installed on the lifting motor (15). The lead screw meshes with the connecting bridge (46) between the top cover (45) and the rotating motor (13). The lifting motor (15) can control the up and down movement of the top cover (45) and the rotating motor (13) by rotating the lead screw.

4. A reactor device for enhancing the contact between gas molecules and solid catalyst particles in a slurry, as claimed in claim 1, wherein: The liquid outlet pipe (12) is connected to the heat-insulated external circulation liquid path system (44) through the first valve (10), and the liquid inlet pipe (18) is connected to the heat-insulated external circulation liquid path system (44) through the second valve (9); The heat-insulated external circulation liquid path system (44) includes a liquid path formed by connecting the first valve (10), the high-temperature circulation gear pump (27), the heating tank (26), and the second valve (9) in sequence, so that the slurry discharged from the liquid outlet pipe (12) at the bottom of the reaction kettle accommodation chamber (1) flows through the first valve (10), the high-temperature circulation gear pump (27), the heating tank (26), and the second valve (9) in sequence and returns to the liquid inlet pipe (18); a drain valve (31) is provided on the liquid path between the first valve (10) and the high-temperature circulation gear pump (27); a second pressure gauge (28) is provided on the liquid path between the high-temperature circulation gear pump (27) and the heating tank (26).

5. The reactor device for enhancing the contact between gas molecules and solid catalyst particles in slurry according to claim 1, wherein: The gas inlet pipe (5) and the gas outlet pipe (6) are connected to the external gas path system (43); the gas path system (43) includes an intake passage and an exhaust passage; the intake passage passes the external gas into the reaction kettle accommodation chamber (1) through a pressure reducing valve (42), a front pressure gauge (41), a third valve (39), a flow meter (40), a fourth valve (38), an intake pipe heating device (37), and the gas inlet pipe (5) in sequence; the exhaust passage passes the gas inside the reaction kettle accommodation chamber (1) to the outside through the gas outlet pipe (6), a heat trap (33), a cold trap (34), a back pressure gauge (36), and a back pressure valve (35) in sequence.

6. The reactor device for enhancing the contact between gas molecules and solid catalyst particles in slurry according to claim 1, characterized in that: A first pressure gauge (17) and an explosion-proof device (16) are provided on the top cover (45).

7. A reactor device for enhancing the contact between gas molecules and solid catalyst particles in a slurry, as claimed in claim 1, wherein: A first platinum thermal resistance (11) is installed at the bottom of the reaction kettle housing (3), and a second platinum thermal resistance (29) is installed on the heating tank (26).

8. The reactor device for enhancing the contact between gas molecules and solid catalyst particles in slurry according to claim 4, characterized in that: A first thermometer (30) is installed on the liquid path between the heating tank (26) and the second valve (9); a second thermometer (32) is installed on the liquid path between the first valve (10) and the high-temperature circulation gear pump (27).

9. The reactor device for enhancing the contact between gas molecules and solid catalyst particles in slurry according to claim 1, wherein: A filter element (20) is sleeved at the opening of the gas outlet pipe (6) in the second airtight area; a sealing ring (22) is provided at the joint between the lower end of the static disk (21) and the reaction kettle body (3), which can prevent the reaction gas from being discharged from the first airtight area before fully contacting the slurry containing solid catalyst particles.

10. A reactor device for enhancing the contact between gas molecules and solid catalyst particles in a slurry, according to claim 1, characterized in that: The opening of the liquid inlet pipe (18) is close to the rotating shaft (7).

Images