Pipeline reactor suitable for reaction of natural gas and sulfur

Abstract

The invention provides a pipeline reactor suitable for reaction of natural gas and sulfur. The pipeline reactor comprises a box body and a reaction unit, the box body has a heating cavity. And a heating structure is arranged in the heating cavity. The reaction unit is arranged in the heating cavity and is provided with a first feed port, a second feed port and a discharge port which extend out of the heating cavity, the first feed port is communicated with an external natural gas pipeline, and the second feed port is communicated with an external liquid sulfur pipeline. The reaction unit is provided with a mixed reaction part communicated with the first feeding hole and the second feeding hole, and the mixed reaction part can accelerate sulfur gasification and mix the gasified sulfur with the natural gas. And the reaction unit is also provided with a snakelike reaction part communicated with the mixed reaction part and the discharge hole. According to the pipeline reactor suitable for the reaction of the natural gas and the sulfur, the natural gas and the gasified sulfur can be uniformly mixed in advance, the pipeline reactor can adapt to sudden change of pressure, sudden change of air pressure caused by gasification is buffered, the reaction effect is guaranteed, and practicability is high.

Description

Technical Field

[0001] The invention belongs to the technical field of reaction equipment, and in particular relates to a pipeline reactor suitable for the reaction of natural gas and sulfur. Background Art

[0002] The reaction of natural gas and sulfur can produce hydrogen sulfide and carbon disulfide, and its hydrogen sulfide can be used as a raw material for the preparation of dimethyl sulfide. The reaction of natural gas and sulfur needs to be carried out at high temperature, and pipeline reactors are often used for this. Pipeline reactors are a type of continuously operated reactor, which is characterized by chemical reactions of reactants while flowing in the pipeline. The advantage is that it can provide a large reaction area, allowing the reactants to be fully mixed, thereby improving the reaction efficiency.

[0003] In the prior art, when it comes to the reaction between natural gas and sulfur, the sulfur is usually heated to a liquid state before entering the pipeline reactor. Then the two enter the device pipeline reactor. As the temperature rises, the liquid sulfur is gasified to react with the natural gas. The reaction formula is: CH4+2S2→CS2+2H2S. In order to increase the residence time of the reactants, a serpentine pipeline is usually used. However, during the sulfur gasification process, a sudden change in pressure will occur. Excessive pressure will affect the reaction effect, and the pressure resistance requirements for the pipeline will also increase. In addition, after the two raw materials enter the pipeline, the gasification speed of sulfur is slow. Although excessive sulfur is added, the mixing effect of the two raw materials is still poor, and the reaction effect is poor. Summary of the invention

[0004] The embodiment of the present invention provides a pipeline reactor suitable for the reaction of natural gas and sulfur, aiming to solve the problem of poor practicability of the existing pipeline reactor due to poor reaction effect.

[0005] To achieve the above object, the technical solution adopted by the present invention is: to provide a pipeline reactor suitable for the reaction of natural gas and sulfur, comprising:

[0006] The box body has a heating chamber; a heating structure is arranged in the heating chamber;

[0007] A reaction unit is arranged in the heating chamber, and has a first feed port, a second feed port and a discharge port extending out of the heating chamber, the first feed port is connected to an external natural gas pipeline, and the second feed port is connected to an external liquid sulfur pipeline; the reaction unit has a mixing reaction part connected to the first feed port and the second feed port, the mixing reaction part is used to accelerate sulfur gasification and mix the gasified sulfur with natural gas; the reaction unit also has a serpentine reaction part connected to the mixing reaction part and the discharge port.

[0008] In a possible implementation, the reaction unit includes:

[0009] A first mounting seat, fixedly mounted in the heating chamber, wherein the first mounting seat has a plurality of first U-shaped channels and a first straight channel;

[0010] A second mounting seat is fixedly mounted in the heating chamber and is spaced apart from the first mounting seat in a horizontal direction; the second mounting seat is provided with a plurality of second U-shaped channels and a second straight channel;

[0011] A gasification mixing structure, with two ends respectively fixed on the first mounting seat and the second mounting seat, and connected to the second straight channel;

[0012] There are multiple intermediate pipelines, each of which is located between the first mounting seat and the second mounting seat, and is horizontally arranged, connected with each of the first U-shaped channels, the first straight channels, each of the second U-shaped channels and the second straight channels to form the serpentine reaction part.

[0013] In a possible implementation, a first feed pipe and a second feed pipe are fixedly provided on the gasification mixing structure, the end of the first feed pipe extending out of the heating chamber is the first feed port, and the end of the second feed pipe extending out of the heating chamber is the second feed port;

[0014] The first straight channel is connected to a discharge pipe, and the end of the discharge pipe extending out of the heating chamber is the discharge port.

[0015] In a possible implementation, a delivery pump is provided on the first feed pipe, the second feed pipe and the discharge pipe.

[0016] In a possible implementation, the gasification mixing structure includes:

[0017] A first fixing seat is fixed on the first mounting seat, the first fixing seat has a circular cavity with an open end, and the axis of the circular cavity is arranged horizontally; the first fixing seat is provided with a first feeding channel connected to the circular cavity and connected to the first feeding pipe, and a second feeding channel connected to the circular cavity and connected to the second feeding pipe;

[0018] A second fixing seat, fixed on the second mounting seat, wherein the second fixing seat has a through circular hole coaxially arranged with the circular cavity;

[0019] A conical cylinder having a large end and a small end, wherein the large end of the conical cylinder is fixedly connected to the second fixing seat, and the small end is connected to the circular cavity;

[0020] The rotating mixing element is rotatably arranged in the conical cylinder, and one end of the rotating mixing element extends into the through circular hole, and is used to rotate along with the airflow led out from the through circular hole, so as to mix the materials in the cylinder cavity of the conical cylinder.

[0021] In a possible implementation, a separating circular plate is provided in the through circular hole to separate the through circular hole into a first space and a second space;

[0022] Wherein, a bypass pipeline connecting the first space and the second space is provided on the second fixing seat, and a pressure-stabilizing valve is provided on the bypass pipeline.

[0023] In a possible implementation, the rotating mixing element includes:

[0024] A rotating shaft is coaxially arranged with the conical cylinder, one end of which is rotatably connected to the small end of the conical cylinder, and the other end of which is connected to the partition circular plate and extends into the second space after passing through the partition circular plate;

[0025] There are at least two stirring blades, each of which is arranged on the rotating shaft at an annular interval, and each of which has a graphene strip fixed on its outer edge for sliding contact with the inner wall of the cylinder cavity of the conical cylinder;

[0026] The impeller is arranged in the second space, connected to the rotating shaft, and corresponds to the bypass pipeline.

[0027] In a possible implementation, a semicircular plate is provided in the circular cavity, and the semicircular plate is located at the bottom of the circular cavity to separate the circular cavity into a third space and a fourth space, and the third space is connected to the top of the fourth space;

[0028] Wherein, the first feed channel is located at the bottom of the circular cavity and is arranged along the tangent direction of the circular cavity; the second feed channel is located at the bottom of the circular cavity and is arranged parallel to the axis of the circular cavity.

[0029] In a possible implementation, the heating structure is electric heating.

[0030] In this implementation, the heating chamber provided by the box body can ensure that the reaction unit is at a constant temperature under the action of the heating structure, thereby ensuring the reaction effect. The materials entering from the first feed port and the second feed port all enter the mixed reaction part, which can ensure the rapid gasification of liquid sulfur, and at the same time ensure the uniform mixing of natural gas and gasified sulfur. Moreover, the mixed reaction part can adapt to the sudden change of pressure, buffer the sudden change of air pressure caused by gasification, avoid sudden change of pressure, ensure the reaction effect, and have strong practicality. The serpentine reaction part can prolong the formation of the reaction, further ensuring the reaction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic cross-sectional view of a pipeline reactor suitable for natural gas and sulfur reaction provided in an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of the top view of the reaction unit of a pipeline reactor suitable for natural gas and sulfur reaction provided by an embodiment of the present invention (wherein the half-shaped seat is hidden);

[0033] Figure 3 for Figure 2 An enlarged structural schematic diagram of position A of a pipeline reactor suitable for the reaction of natural gas and sulfur provided in an embodiment;

[0034] Figure 4 for Figure 2 An enlarged structural schematic diagram of position B of a pipeline reactor suitable for the reaction of natural gas and sulfur provided in an embodiment;

[0035] Figure 5 for Figure 3 A schematic cross-sectional view of the CC portion of a pipeline reactor suitable for the reaction of natural gas and sulfur provided in an embodiment;

[0036] Figure 6 A schematic diagram of a porous plate structure of a pipeline reactor suitable for natural gas and sulfur reaction provided by an embodiment of the present invention;

[0037] Description of reference numerals:

[0038] 10. Box body; 11. Heating chamber; 12. Heating structure;

[0039] 20. reaction unit; 21. first mounting seat; 22. second mounting seat; 23. gasification mixing structure; 231. first fixing seat; 2311. circular cavity; 2312. semicircular plate; 2313. first feed channel; 2314. second feed channel; 232. second fixing seat; 2321. pressure regulating valve; 233. conical cylinder; 234. rotating mixing element; 2341. rotating shaft; 2342. stirring blade; 2343. impeller; 2344. separating circular plate; 2345. porous plate; 24. intermediate pipeline; 25. first U-shaped channel; 26. second U-shaped channel;

[0040] 30. A first feed pipe;

[0041] 40. A second feed pipe;

[0042] 50. Discharge pipe. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0044] Please also read Figure 1 and Figure 2 , the pipeline reactor suitable for natural gas and sulfur reaction provided by the present invention is now described. The pipeline reactor suitable for natural gas and sulfur reaction includes a housing 10 and a reaction unit 20. The housing 10 has a heating chamber 11. A heating structure 12 is provided in the heating chamber 11. The reaction unit 20 is arranged in the heating chamber 11, and has a first feed port, a second feed port and a discharge port extending out of the heating chamber 11. The first feed port is connected to an external natural gas pipeline, and the second feed port is connected to an external liquid sulfur pipeline. The reaction unit 20 has a mixing reaction part connected to the first feed port and the second feed port, and the mixing reaction part can accelerate sulfur gasification and mix the gasified sulfur with natural gas. The reaction unit 20 also has a serpentine reaction part connected to the mixing reaction part and the discharge port.

[0045] The pipeline reactor suitable for the reaction of natural gas and sulfur provided in this embodiment, compared with the prior art, the heating chamber 11 provided by the box 10, under the action of the heating structure 12, can ensure that the reaction unit 20 is at a constant temperature, thereby ensuring the reaction effect. The materials entering from the first feed port and the second feed port all enter the mixed reaction part, which can ensure the rapid gasification of liquid sulfur, and at the same time ensure the uniform mixing of natural gas and gasified sulfur, and the mixed reaction part can adapt to the sudden change of pressure, buffer the sudden change of air pressure caused by gasification, avoid sudden change of pressure, ensure the reaction effect, and have strong practicality. The serpentine reaction part can prolong the formation of the reaction, further ensuring the reaction effect.

[0046] Specifically, the natural gas entering from the first feed port and the liquid sulfur entering from the second feed port will enter the mixing reaction section, where the liquid sulfur will rapidly gasify and expand, and after being pressure stabilized and preliminarily mixed in the mixing reaction section, they will then enter the serpentine reaction section for further reaction.

[0047] In some embodiments, the reaction unit 20 may be implemented as follows: Figure 1 to Figure 2 See the structure shown. Figure 1 to Figure 2, the reaction unit 20 includes a first mounting seat 21, a second mounting seat 22, a gasification mixing structure 23 and an intermediate pipeline 24. The first mounting seat 21 is fixed in the heating chamber 11, and the first mounting seat 21 has a plurality of first U-shaped channels 25, and is provided with a first straight channel. The second mounting seat 22 is fixed in the heating chamber 11, and is arranged horizontally with the first mounting seat 21. The second mounting seat 22 is provided with a plurality of second U-shaped channels 26, and is provided with a second straight channel. The two ends of the gasification mixing structure 23 are respectively fixed on the first mounting seat 21 and the second mounting seat 22, and are connected to the second straight channel. There are a plurality of intermediate pipelines 24, each of which is located between the first mounting seat 21 and the second mounting seat 22, and is arranged horizontally, and is connected with each first U-shaped channel 25, the first straight channel, each second U-shaped channel 26 and the second straight channel to form a serpentine reaction part.

[0048] The first mounting seat 21 and the second mounting seat 22 can be fixedly mounted in the heating chamber 11. Specifically, a horizontal support plate or a support frame can be arranged in the heating chamber 11 and fixedly connected to the first mounting seat 21 and the second mounting seat 22. Figure 1 . Moreover, the first mounting seat 21 and the second mounting seat 22 can also facilitate the fixed installation of the gasification mixing structure 23 and the intermediate pipeline 24, so as to facilitate the connection between the two. The gasification mixing structure 23 can effectively ensure the rapid gasification of liquid sulfur, and at the same time can buffer the sudden pressure change of sulfur gasification, and can stabilize the pressure. The serpentine reaction part is surrounded by the heating chamber 11, which can ensure sufficient reaction under constant temperature conditions and ensure the reaction effect.

[0049] It should be noted that the first mounting seat 21 and the second mounting seat 22 may both be split structures, see Figure 1 and Figure 5 , each includes two half-shaped seats that can be matched, and the two half-shaped seats are connected by bolts. After the two half-shaped seats are matched, a first U-shaped channel 25, a second U-shaped channel 26, a first straight channel and a second straight channel are formed. This structure can be easily disassembled and connected.

[0050] In some embodiments, the gasification mixing structure 23 may be configured as follows: Figures 2 to 3 See the structure shown. Figures 2 to 3 A first feed pipe 30 and a second feed pipe 40 are fixedly provided on the gasification mixing structure 23. The end of the first feed pipe 30 extending out of the heating chamber 11 is a first feed port, and the end of the second feed pipe 40 extending out of the heating chamber 11 is a second feed port.

[0051] The first straight channel is connected to the discharge pipe 50 , and the end of the discharge pipe 50 extending out of the heating chamber 11 is a discharge port.

[0052] The first feed pipe 30 , the second feed pipe 40 and the discharge pipe 50 can ensure the feeding and discharging effects.

[0053] In some embodiments, the first feed pipe 30, the second feed pipe 40 and the discharge pipe 50 can be made of Figure 2 See the structure shown. Figure 2 The first feed pipe 30 and the second feed pipe 40 are both provided with a delivery pump to ensure the effect of pressure pumping. The discharge pipe 50 is provided with a delivery pump to ensure the discharge of materials and stabilize the pressure in the serpentine reaction part.

[0054] It should be noted that back pressure valves may also be provided on the first feed pipe 30 and the second feed pipe 40 .

[0055] In some embodiments, the gasification mixing structure 23 may be configured as follows: Figures 2 to 4 See the structure shown. Figures 2 to 4 The gasification mixing structure 23 includes a first fixed seat 231, a second fixed seat 232, a conical cylinder 233 and a rotating mixing element 234. The first fixed seat 231 is fixedly mounted on the first mounting seat 21, and the first fixed seat 231 has a circular cavity 2311 with one end being open, and the axis of the circular cavity 2311 is arranged horizontally. The first fixed seat 231 is provided with a first feed channel 2313 which is connected to the circular cavity 2311 and connected to the first feed pipe 30, and is also provided with a second feed channel 2314 which is connected to the circular cavity 2311 and connected to the second feed pipe 40. The second fixed seat 232 is fixedly mounted on the second mounting seat 22, and the second fixed seat 232 has a through circular hole which is arranged coaxially with the circular cavity 2311. The conical cylinder has a large end and a small end, the large end of the conical cylinder is fixedly connected to the second fixed seat 232, and the small end is connected to the circular cavity 2311. The rotating mixing element 234 is rotatably disposed in the conical cylinder, and one end thereof extends into the through circular hole, and can rotate along with the airflow derived from the through circular hole, so as to mix the materials in the cylinder cavity of the conical cylinder.

[0056] The first fixing seat 231 is fixed by the first mounting seat 21, and the second fixing seat 232 is fixed by the second mounting seat 22, and the conical cylinder 233 is connected between the first fixing seat 231 and the second fixing seat 232. The materials introduced by the first feeding pipe 30 and the second feeding pipe 40 enter the circular cavity 2311 and then enter the conical cylinder 233, at which time the liquid sulfur is gasified and fully mixed with the natural gas under the stirring of the rotating mixing element 234.

[0057] In this process, when the liquid sulfur enters the small end of the conical cylinder 233 from the circular cavity 2311, it will contact the inner wall of the conical cylinder 233, and the temperature of the inner wall of the conical cylinder 233 is relatively high, usually the temperature of the heating cavity 11, which is between 600-700°C. At this time, the liquid sulfur at the small end of the conical cylinder 233 will be rapidly gasified to ensure the mixing effect with the natural gas. In addition, the surface area of ​​the conical cylinder 233 is large, which can ensure the increase of the contact area of ​​the liquid sulfur and further ensure the gasification efficiency. In addition, after the sulfur at the small end of the conical cylinder 233 is gasified, its pressure will increase, and the gradually expanding cylinder cavity of the conical cylinder 233 can buffer this sudden pressure to avoid excessive pressure, and at the same time can also ensure the gradient change of pressure, with better fluid dynamics performance. When it comes to the process of gas mixing and exporting, it will pass through the through circular hole. At this time, the airflow will drive the rotating mixing element 234 to rotate, and then stir the gas in the conical cylinder 233 to improve the mixing effect.

[0058] It should be noted that the through hole and the second straight channel can be connected through a U-shaped tube, see Figure 2 .

[0059] In some embodiments, the second fixing base 232 may be configured as follows: Figure 4 See the structure shown. Figure 4 A separating circular plate 2344 is provided in the through circular hole to separate the through circular hole into a first space and a second space.

[0060] A bypass pipeline connecting the first space and the second space is disposed on the second fixing seat 232 , and a pressure stabilizing valve 2321 is disposed on the bypass pipeline.

[0061] In order to ensure a constant pressure in the conical cylinder 233, a bypass pipeline is provided on the second mounting seat 22, and a pressure regulating valve 2321 is provided at the same time. The separating circular plate 2344 can ensure the rotation connection with the rotating shaft 2341, and at the same time ensure that the mixed gas flows through the bypass pipeline. This structure can ensure that the pressure in the conical cylinder 233 is stable within a certain pressure range, usually 0.8MPa, to ensure the reaction effect.

[0062] It should be noted that a pressure sensor needs to be provided on the conical cylinder 233 to monitor the pressure in the cylinder cavity. When the pressure is too high, the feed speed needs to be adjusted.

[0063] In some embodiments, the rotating mixing element 234 may be configured as follows: Figures 2 to 4 See the structure shown. Figures 2 to 4The rotating mixing element 234 includes a rotating shaft 2341 and a stirring blade 2342. The rotating shaft 2341 is coaxially arranged with the conical cylinder, one end of which is rotatably connected to the small end of the conical cylinder, and the other end is connected to the partition circular plate 2344, and extends into the second space after passing through the partition circular plate 2344. There are at least two stirring blades 2342, each of which is arranged on the rotating shaft 2341 at an annular interval, and the outer edge of each stirring blade 2342 is fixed with a graphene strip that is in sliding contact with the inner wall of the cylinder cavity of the conical cylinder. The impeller 2343 is arranged in the second space, connected to the rotating shaft 2341, and corresponds to the outlet of the bypass pipeline.

[0064] The impeller 2343 is located at the outlet of the bypass pipeline, which can ensure that the airflow derived from the bypass pipeline is pushed, thereby driving the rotating shaft 2341 to rotate, and then stirring the mixture in the cylinder cavity through the stirring blades 2342.

[0065] In addition, the outer edge of the stirring blade 2342 is provided with a graphene strip, which can be embedded. This technology is an existing technology and will not be repeated here. Graphene has good wear resistance and high temperature resistance. After the liquid sulfur enters the conical cylinder 233, it will fall to the bottom side of the cylinder cavity due to gravity. At this time, after the stirring blade 2342 rotates, the liquid sulfur at the bottom can be applied to the inner wall of the entire conical cylinder 233, thereby increasing the area of ​​heat exchange, ensuring that the liquid sulfur can be quickly gasified, and ensuring the reaction effect.

[0066] It should be noted that a porous plate 2345 is provided at the small end of the conical cylinder 233, as shown in FIG. Figure 6 The porous plate 2345 can ensure the rotation connection with the rotating shaft 2341. At the same time, the porous plate 2345 is evenly distributed with multiple holes, which can ensure that the natural gas and liquid sulfur enter the interior of the conical cylinder 233. When the mixture passes through each hole, the flow rate will increase. At this time, the natural gas will push the liquid sulfur to pass through the hole to form sputtering, increase the sputtering range of the liquid sulfur, and further ensure the mixing effect of the two.

[0067] In some embodiments, the first mounting base 21 may be configured as follows: Figure 5 See the structure shown. Figure 5 A semicircular plate 2312 is provided in the circular cavity 2311, and the semicircular plate 2312 is located at the bottom of the circular cavity 2311 to separate the circular cavity 2311 into a third space and a fourth space, and the third space is connected to the top of the fourth space.

[0068] The first feed channel 2313 is located at the bottom of the circular cavity 2311 and is arranged along the tangent direction of the circular cavity 2311. The second feed channel 2314 is located at the bottom of the circular cavity 2311 and is arranged parallel to the axis of the circular cavity 2311.

[0069] The semicircular plate 2312 can form a groove for storing liquid sulfur in the circular cavity 2311. The natural gas pumped in through the second feed channel 2314 will blow up the liquid sulfur in the groove, and then disperse the liquid sulfur in the form of small droplets into the conical cylinder 233, which can ensure the dispersion effect and thus ensure its rapid gasification.

[0070] In some embodiments, the heating structure 12 may be configured as follows: Figure 1 See the structure shown. Figure 1 The heating structure 12 is electrically heated and has a plurality of electric heating tubes. This technology is prior art and will not be described in detail here.

[0071] At the same time, an air inlet and an air outlet are provided in the box body 10 to ensure the regulation of temperature.

[0072] In some embodiments, see Figure 1 There may be a plurality of reaction units 20 arranged in sequence from top to bottom, and each reaction unit 20 corresponds to a group of raw material supply units, thereby ensuring improved efficiency and energy saving.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipeline reactor suitable for the reaction of natural gas and sulfur, characterized in that: include: The box body has a heating chamber; a heating structure is arranged in the heating chamber; A reaction unit is arranged in the heating chamber, and has a first feed port, a second feed port and a discharge port extending out of the heating chamber, the first feed port is connected to an external natural gas pipeline, and the second feed port is connected to an external liquid sulfur pipeline; the reaction unit has a mixing reaction part connected to the first feed port and the second feed port, the mixing reaction part is used to accelerate sulfur gasification and mix the gasified sulfur with natural gas; the reaction unit also has a serpentine reaction part connected to the mixing reaction part and the discharge port.

2. The pipeline reactor suitable for the reaction of natural gas and sulfur as claimed in claim 1, characterized in that: The reaction unit comprises: A first mounting seat, fixedly mounted in the heating chamber, wherein the first mounting seat has a plurality of first U-shaped channels and a first straight channel; A second mounting seat is fixedly mounted in the heating chamber and is spaced apart from the first mounting seat in a horizontal direction; the second mounting seat is provided with a plurality of second U-shaped channels and a second straight channel; A gasification mixing structure, with two ends respectively fixed on the first mounting seat and the second mounting seat, and connected to the second straight channel; There are multiple intermediate pipelines, each of which is located between the first mounting seat and the second mounting seat, and is horizontally arranged, connected with each of the first U-shaped channels, the first straight channels, each of the second U-shaped channels and the second straight channels to form the serpentine reaction part.

3. The pipeline reactor suitable for the reaction of natural gas and sulfur as claimed in claim 2, characterized in that: The gasification mixing structure is fixedly provided with a first feed pipe and a second feed pipe, the end of the first feed pipe extending out of the heating chamber is the first feed port, and the end of the second feed pipe extending out of the heating chamber is the second feed port; The first straight channel is connected to a discharge pipe, and the end of the discharge pipe extending out of the heating chamber is the discharge port.

4. The pipeline reactor suitable for the reaction of natural gas and sulfur as claimed in claim 3, characterized in that: The first feed pipe, the second feed pipe and the discharge pipe are all provided with a delivery pump.

5. The pipeline reactor suitable for the reaction of natural gas and sulfur as claimed in claim 3, characterized in that: The gasification mixing structure comprises: A first fixing seat is fixed on the first mounting seat, the first fixing seat has a circular cavity with an open end, and the axis of the circular cavity is arranged horizontally; the first fixing seat is provided with a first feeding channel connected to the circular cavity and connected to the first feeding pipe, and a second feeding channel connected to the circular cavity and connected to the second feeding pipe; A second fixing seat, fixed on the second mounting seat, wherein the second fixing seat has a through circular hole coaxially arranged with the circular cavity; A conical cylinder having a large end and a small end, wherein the large end of the conical cylinder is fixedly connected to the second fixing seat, and the small end is connected to the circular cavity; The rotating mixing element is rotatably arranged in the conical cylinder, and one end of the rotating mixing element extends into the through circular hole, and is used to rotate along with the airflow led out from the through circular hole, so as to mix the materials in the cylinder cavity of the conical cylinder.

6. The pipeline reactor suitable for the reaction of natural gas and sulfur as claimed in claim 5, characterized in that: A dividing circular plate is provided in the through circular hole to separate the through circular hole into a first space and a second space; Wherein, a bypass pipeline connecting the first space and the second space is provided on the second fixing seat, and a pressure-stabilizing valve is provided on the bypass pipeline.

7. The pipeline reactor suitable for the reaction of natural gas and sulfur as claimed in claim 6, characterized in that: The rotating mixing element comprises: A rotating shaft is coaxially arranged with the conical cylinder, one end of which is rotatably connected to the small end of the conical cylinder, and the other end of which is connected to the partition circular plate and extends into the second space after passing through the partition circular plate; There are at least two stirring blades, each of which is arranged on the rotating shaft at an annular interval, and each of which has a graphene strip fixed on its outer edge for sliding contact with the inner wall of the cylinder cavity of the conical cylinder; The impeller is arranged in the second space, connected to the rotating shaft, and corresponds to the bypass pipeline.

8. The pipeline reactor suitable for the reaction of natural gas and sulfur as claimed in claim 5, characterized in that: A semicircular plate is provided in the circular cavity, and the semicircular plate is located at the bottom of the circular cavity to separate the circular cavity into a third space and a fourth space, and the third space is connected to the top of the fourth space; Wherein, the first feed channel is located at the bottom of the circular cavity and is arranged along the tangent direction of the circular cavity; the second feed channel is located at the bottom of the circular cavity and is arranged parallel to the axis of the circular cavity.

9. The pipeline reactor suitable for the reaction of natural gas and sulfur as claimed in claim 5, characterized in that: The heating structure is electric heating.

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