Natural gas hydrogen sulfide microwave removal and separation integrated equipment and method

Abstract

The invention discloses natural gas hydrogen sulfide microwave removal and separation integrated equipment which is characterized in that cooling water is input into the input end of a cooling circulating water pipeline, the output end of the cooling circulating water pipeline is connected with the cooling water input end of a cooling tower, and the cooling water output end of the cooling tower is connected with the cooling water input end of a microwave catalysis device; natural gas is input into one end of the natural gas conveying pipeline, the other end of the natural gas conveying pipeline is connected with the natural gas input end of the microwave catalysis device, and the natural gas conveying pipeline is wound outside the cooling tower. The microwave output end of the microwave generator is connected with the microwave input end of the microwave catalysis device; the first product output end of the cooling tower is connected with the input end of the cooler, the output end of the cooler is connected with the input end of the compressor, and the output end of the compressor is connected with the residual water input end of the cooling tower, the sulfur-containing water input end of the sulfur-containing sewage pool and the treated natural gas input end of the natural gas storage tank. The first product comprises natural gas, high-temperature water vapor, H2 and S.

Description

Technical Field

[0001] The present invention belongs to the technical field of chemistry and chemical engineering, and in particular relates to an integrated device and method for microwave removal and separation of hydrogen sulfide from natural gas. Background Art

[0002] With the rapid development of the global industrial era, people's demand for fossil energy such as oil, coal, and natural gas is increasing. In the process of obtaining these fossil energy, a large amount of hydrogen sulfide (H 2 Hydrogen sulfide is an acidic and highly toxic gas that causes serious harm to machinery and equipment, the environment and human body. Therefore, finding a suitable method to treat hydrogen sulfide waste gas is an extremely important issue.

[0003] At present, the main method for industrial treatment of hydrogen sulfide is the Claus process, that is, H 2 S is incompletely oxidized to form sulfur and water. However, this method requires extremely high reaction temperatures such as 1300K and also produces a large amount of toxic byproducts (H 2 S or SO 2 ) and cause secondary pollution; moreover, although this method recovers sulfur resources, it converts precious hydrogen into water, resulting in a huge waste of hydrogen resources. 2 S directly decomposes to generate H 2 and S, the generated H 2 If it can be used again in the processes of petroleum hydrogenation, refining, and synthetic ammonia, it will not only solve the environmental pollution problem but also bring huge economic benefits. 2 S also recycles H 2 and S have great research significance.

[0004] At present, there is no integrated equipment for microwave removal of hydrogen sulfide from natural gas using water as heat carrier for reaction and separation. Summary of the invention

[0005] The purpose of the present invention is to overcome the problem that there is no natural gas microwave hydrogen sulfide removal reaction and separation integrated equipment using water as heat carrier, and proposes a natural gas microwave hydrogen sulfide removal and separation integrated equipment and method.

[0006] In order to achieve the above object, the present invention adopts the following technical scheme: In a first aspect, the present invention provides an integrated microwave removal and separation device for hydrogen sulfide in natural gas, comprising a cooling circulating water pipeline, a natural gas transmission pipeline, a cooling tower, a microwave catalytic device, a microwave generator, a cooler, a compressor, a sulfur-containing sewage pool and a natural gas storage tank; The input end of the cooling circulating water pipeline inputs cooling water, the output end of the cooling circulating water pipeline is connected to the cooling water input end of the cooling tower, and the cooling water output end of the cooling tower is connected to the cooling water input end of the microwave catalytic device; One end of the natural gas delivery pipeline inputs natural gas, the other end of the natural gas delivery pipeline is connected to the natural gas input end of the microwave catalytic device, and the natural gas delivery pipeline is coiled outside the cooling tower; The microwave output end of the microwave generator is connected to the microwave input end of the microwave catalytic device; The first product output end of the cooling tower is connected to the input end of the cooler, the output end of the cooler is connected to the input end of the compressor, and the output end of the compressor is respectively connected to the residual water input end of the cooling tower, the sulfur-containing water input end of the sulfur-containing sewage pool, and the treated natural gas input end of the natural gas storage tank. The first product includes natural gas, high-temperature steam, H 2 and S.

[0007] Furthermore, a fan and a catalyst bed are arranged inside the microwave catalytic device, and the microwave generator adopts an electron tube type microwave generator, with an output power range of 300 to 4500W, an operating frequency of 450 to 2500MHz, an efficiency of 55 to 75%, and a power supply voltage of 3600 to 12500V; The fan blade material includes polytetrafluoroethylene, polypropylene or polyvinyl chloride, the fan blade diameter is 100-250mm, and the rotation speed is 2500-3500rpm; The catalyst types in the catalyst bed include MoS 2 / γ-Al 2 O 3 、FeS、CoS / γ-Al 2 O 3 Or Mo 2 C-TiO 2 .

[0008] Furthermore, a deflector baffle is arranged inside the cooling tower.

[0009] Furthermore, the baffles are made of corrosion-resistant metal material, the number of the baffles is in the range of 6 to 17, the length of the baffles is in the range of 0.7m to 1.7m, the width of the baffles is in the range of 15cm to 30cm, and the plate spacing of the baffles is in the range of 15cm to 25cm.

[0010] Furthermore, the cooling water circulation pipeline is made of stainless steel, carbon steel or copper pipe, and the cooling water flow rate in the pipeline is 350-2000m 3 / h, cooling water temperature is 18~25℃; The pipeline material of the natural gas transmission pipeline includes steel pipe, polyethylene pipe or composite material pipe; The material of the cooling tower includes glass fiber reinforced plastic or stainless steel. The height of the cooling tower is 70-150m, the diameter of the cooling tower is 7-20m, and the cooling capacity of the cooling tower is 350-2000m. 3 / h.

[0011] Furthermore, the cooler adopts a shell and tube structure, and the cooling capacity of the cooler is 350-2000m 3 / h.

[0012] Furthermore, the compressor is of piston type, screw type or centrifugal type, the main body of the compressor is made of cast iron, aluminum or alloy, the exhaust pressure is 4.2-10Mpa, and the exhaust volume is 20-200m 3 / min, the power is 1000~4500kW, the efficiency is 70~85%, the noise level is 60~80dB, and the vibration value is 5.0~7.0mm / s.

[0013] Furthermore, the sulfur-containing sewage pool includes concrete, reinforced concrete, prefabricated components and an impermeable layer, and the sewage storage capacity of the sulfur-containing sewage pool ranges from 0 to 60,000 L.

[0014] Furthermore, the natural gas storage tank adopts a double-layer container structure, the double-layer container structure includes an inner container and an outer container, the material of the inner container is 16MnDR steel, the material of the outer container is Q235-B or 16MnR material, and the volume of the natural gas storage tank is 30L to 200L.

[0015] In a second aspect, the present invention provides a method for microwave removal and separation of hydrogen sulfide from natural gas, using the integrated microwave removal and separation equipment for hydrogen sulfide from natural gas, comprising the following steps: The cooling water flows through the cooling circulating water pipeline into the cooling tower, the cooling water in the cooling tower enters the microwave catalytic device, the natural gas enters the microwave catalytic device after being heated in the cooling tower through the natural gas transmission pipeline, and the microwave generator generates microwaves that enter the microwave catalytic device; The microwave generates heat by using water from a cooling tower as a heat carrier, heating the catalyst in the microwave catalytic device to decompose hydrogen sulfide in the natural gas into H and S, thereby obtaining a first product; The first product enters the cooling tower for cooling to obtain cooled gas, and the cooled gas enters the cooler for cooling again and is compressed and liquefied by a compressor to obtain residual water, sulfur-containing water and treated natural gas; the residual water returns to the cooling tower for reuse, the sulfur-containing water is sent to the sulfur-containing sewage pool, and the treated natural gas is input into the natural gas storage tank for storage.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention proposes an integrated microwave removal and separation device for hydrogen sulfide in natural gas. An integrated device is designed using microwave technology to make up for the lack of integrated microwave reaction and separation equipment for hydrogen sulfide removal from natural gas using water as a heat carrier. The microwave system has the advantages of stable operation and less coking. Compared with conventional heating reactors, microwave reactors have higher catalytic performance and higher energy utilization. In addition, the temperature uniformity of the catalyst bed of the microwave reactor is good, which eliminates the cold spots of the bed and reduces the coking rate. The microwave reaction and separation process of hydrogen sulfide removal from natural gas is integrated into an integrated device, which is simple and convenient to operate and easy to manage. At the same time, the treatment effect is good, and the products after the reaction are effectively stored. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are for explanation purposes only and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. In the drawings: Figure 1 This is a structural diagram of an integrated microwave removal and separation device for hydrogen sulfide in natural gas according to the present invention.

[0018] Figure 2 This is a structural diagram of a microwave catalytic device of an integrated microwave removal and separation device for hydrogen sulfide in natural gas according to the present invention.

[0019] Figure 3 This is a schematic diagram of the natural gas transmission pipeline surrounding method of the integrated microwave removal and separation equipment of hydrogen sulfide in natural gas according to the present invention.

[0020] Among them, 1. Cooling circulating water pipeline; 2. Natural gas transmission pipeline; 3. Cooling tower; 4. Baffle; 5. Microwave catalytic device; 6. Microwave generator; 7. Fan; 8. Catalyst bed; 9. Cooler; 10. Compressor; 11. Sulfur-containing sewage pool; 12. Natural gas storage tank. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0022] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] Embodiment 1 See also Figure 1 , Figure 2 and Figure 3 This embodiment provides an integrated microwave removal and separation device for hydrogen sulfide in natural gas, comprising a cooling circulating water pipeline 1, a natural gas transmission pipeline 2, a cooling tower 3, a microwave catalytic device 5, a cooler 9, a compressor 10, a sulfur-containing wastewater pool 11, and a natural gas storage tank 12. The microwave catalytic device 5 is composed of a microwave generator 6, a fan 7, and a catalyst bed 8. The cooling water flows through the cooling circulating water pipeline 1 and enters the cooling tower 3, the natural gas enters the microwave catalytic device 5 through the natural gas transmission pipeline 2, the microwave is generated by the microwave generator 6 and enters the microwave catalytic device 5, and the microwave is transmitted to various places inside the microwave catalytic device 5 through the fan 7. The microwave generates heat through the water from the cooling tower 3 as a heat carrier, thereby causing the catalyst in the catalyst bed 8 to act and decompose the hydrogen sulfide in the natural gas entering the device into H 2 and S, natural gas and high-temperature water vapor and decomposed H 2The sulfur-containing water enters the sulfur-containing wastewater pool 11 for storage, and the treated natural gas enters the natural gas storage tank 12. The remaining water re-enters the cooling tower 3 for circulation.

[0026] The microwave generator 6 mainly generates microwaves of a certain frequency for heating. It adopts an electron tube type microwave generator, and its types include but are not limited to magnetron, traveling wave tube, klystron, with an output power range of 300 to 4500W, an operating frequency of 450 to 2500MHz, an efficiency of 55 to 75%, and a supply voltage of 3600 to 12500V.

[0027] The fan 7 is mainly used to transmit the microwaves generated by the microwave generator 6 to various places inside the microwave catalytic device 5. The fan blade material includes but is not limited to polytetrafluoroethylene, polypropylene, polyvinyl chloride, etc. The fan blade diameter is 100-250mm and the rotation speed is 2500-3500rpm.

[0028] Catalyst bed 8 is mainly composed of natural gas decomposition into H 2 and S provide catalysis, and the catalyst types include but are not limited to MoS 2 / γ-Al 2 O 3 , FeS, CoS / γ-Al 2 O 3 , Mo 2 C-TiO 2 .

[0029] The cooling water circulation pipeline 1 is mainly used to transport cooling water. Its pipeline materials include but are not limited to stainless steel, carbon steel, and copper pipes. The cooling water flow rate in the pipeline is 350-2000m 3 / h, cooling water temperature is 18~25℃.

[0030] The natural gas transmission pipeline 2 is mainly used to transport untreated natural gas, and the pipeline material includes but is not limited to steel pipe, polyethylene pipe, and composite material pipe.

[0031] The cooling tower 3 is mainly used to heat the natural gas pipeline 2 wound around the cooling tower 3 and cool the natural gas after the reaction. Its materials include but are not limited to glass fiber reinforced plastics, stainless steel, etc., with a height of 70-150m, a tower diameter of 7-20m, and a cooling capacity of 350-2000m 3 / h.

[0032] The cooling tower 3 is provided with baffles 4 made of corrosion-resistant metal material. The number of baffles 4 ranges from 6 to 17, the length ranges from 0.7m to 1.7m, and the width ranges from 15cm to 30cm. The spacing between baffles 4 is 15cm to 25cm. Cooler 9 is mainly used to cool the water vapor in the gas and the sulfur produced after the reaction. It adopts a shell and tube structure with a cooling capacity of 350 to 2000m 3 / h.

[0033] The compressor 10 is mainly used to compress and liquefy the treated natural gas into the natural gas storage tank 12. The types of compressors include but are not limited to piston type, screw type and centrifugal type. The main material of the compressor includes but is not limited to cast iron, aluminum, and alloy. The exhaust pressure is 4.2-10Mpa and the exhaust volume is 20-200m 3 / min, the power is 1000~4500kW, the efficiency is 70~85%, the noise level is 60~80dBA, and the vibration value is 5.0~7.0mm / s.

[0034] The sulfur-containing sewage pool 11 is mainly used to store sulfur-containing sewage, and is mainly composed of concrete, reinforced concrete, prefabricated components and an impermeable layer. The sewage storage capacity of the pool ranges from 0 to 60,000 L.

[0035] The natural gas storage tank 12 is designed as a double-layer container structure. The inner container material is selected as 16MnDR steel, and the outer container material is Q235-B or 16MnR material. The volume is 30L~200L, which can effectively collect the processed natural gas.

[0036] Embodiment 2 The present invention provides an electron tube type microwave generator 6, with an output power of 1500W, an operating frequency of 2000MHz, an efficiency of 70%, a power supply voltage of 5000V, a fan 7 with a blade material of polytetrafluoroethylene, a blade diameter of 125mm, a rotation speed of 3000rpm, and a catalyst type of the catalyst bed 8 of Mo 2 N-MoC, cooling water circulation pipeline 1 is made of stainless steel, cooling water flow rate is 1000m 3 / h. The cooling water temperature is 25℃, the natural gas transmission pipeline 2 is made of polyethylene pipe, the cooling tower 3 is made of fiberglass, the height is 120m, the tower diameter is 15m, and the cooling capacity is 1000m 3 / h, the cooling tower 3 is provided with baffles 4, the number of which is 10, the length is 0.7m, the width is 15cm, the distance between the baffles is 15cm, the cooler 9 adopts a shell and tube structure, and the cooling capacity is 1000 m 3 / h, compressor 10 is centrifugal, exhaust pressure is 10Mpa, exhaust volume is 15 m 3 / h, the power is 3000W, the storage capacity of the sulfur-containing sewage pool 11 is 30000L, the natural gas storage tank 12 is a double-layer container structure, the inner container material is 16MnDR steel, the outer container material is Q235-B material, and the volume is 100L.

[0037] Select a group of natural gas with a flow rate of 20m 3 / h, the volume fraction of hydrogen sulfide in natural gas is 10.8%, and it is passed into the integrated device of the present invention. Under the action of microwaves, the hydrogen sulfide in the natural gas undergoes a decomposition reaction to generate sulfur and hydrogen, and the sulfur is separated. The volume fraction of hydrogen sulfide in the final natural gas is 2×10 -8 .

[0038] The gas composition before and after passing into the integrated equipment in this example is shown in Table 1.1.

[0039] Table 1.1 Composition of gases produced after photocatalytic reaction

[0040] Embodiment 3 The present invention provides an electron tube type microwave generator 6, with an output power of 1500W, an operating frequency of 2000MHz, an efficiency of 70%, a power supply voltage of 5000V, a fan 7 with a blade material of polytetrafluoroethylene, a blade diameter of 125mm, a rotation speed of 3000rpm, and a catalyst type of the catalyst bed 8 of Mo 2 N-MoC, cooling water circulation pipeline 1 is made of stainless steel, cooling water flow rate is 1000m 3 / h. The cooling water temperature is 25℃, the natural gas transmission pipeline 2 is made of polyethylene pipe, the cooling tower 3 is made of fiberglass, the height is 120m, the tower diameter is 15m, and the cooling capacity is 1000m 3 / h, the cooling tower 3 is provided with baffles 4, the number of which is 10, the length is 0.7m, the width is 15cm, the distance between the baffles is 15cm, the cooler 9 adopts a shell and tube structure, and the cooling capacity is 1000 m 3 / h, compressor 10 is centrifugal, exhaust pressure is 10Mpa, exhaust volume is 15 m 3 / h, the power is 3000W, the storage capacity of the sulfur-containing sewage pool 11 is 30000L, the natural gas storage tank 12 is a double-layer container structure, the inner container material is 16MnDR steel, the outer container material is Q235-B material, and the volume is 100L.

[0041] Select a group of natural gas with a flow rate of 50m 3 / h, the volume fraction of hydrogen sulfide in natural gas is 9.6%, and it is passed into the integrated device of the present invention. Under the action of microwaves, the hydrogen sulfide in the natural gas undergoes a decomposition reaction to generate sulfur and hydrogen, and the sulfur is separated. The volume fraction of hydrogen sulfide in the final natural gas is 1.9×10 -8 .

[0042] The gas composition before and after entering the integrated equipment in this embodiment is shown in Table 1.2 Table 1.2 Composition of gases produced after photocatalytic reaction

[0043] Embodiment 4 The present invention provides an electron tube type microwave generator 6, with an output power of 1500W, an operating frequency of 2000MHz, an efficiency of 70%, a power supply voltage of 5000V, a fan 7 with a blade material of polytetrafluoroethylene, a blade diameter of 125mm, a rotation speed of 3000rpm, and a catalyst type of the catalyst bed 8 of Mo 2 N-MoC, cooling water circulation pipeline 1 is made of stainless steel, cooling water flow rate is 1000m 3 / h. The cooling water temperature is 25℃, the natural gas transmission pipeline 2 is made of polyethylene pipe, the cooling tower 3 is made of fiberglass, the height is 120m, the tower diameter is 15m, and the cooling capacity is 1000m 3 / h, the cooling tower 3 is provided with baffles 4, the number of which is 10, the length is 0.7m, the width is 15cm, the distance between the baffles is 15cm, the cooler 9 adopts a shell and tube structure, and the cooling capacity is 1000 m 3 / h, compressor 10 is centrifugal, exhaust pressure is 10Mpa, exhaust volume is 15 m 3 / h, the power is 3000W, the storage capacity of the sulfur-containing sewage pool 11 is 30000L, the natural gas storage tank 12 is a double-layer container structure, the inner container material is 16MnDR steel, the outer container material is Q235-B material, and the volume is 100L.

[0044] Select a group of natural gas with a flow rate of 100m 3 / h, the volume fraction of hydrogen sulfide in natural gas is 10.8%, and it is passed into the integrated device of the present invention. Under the action of microwaves, the hydrogen sulfide in the natural gas undergoes a decomposition reaction to generate sulfur and hydrogen, and the sulfur is separated. The volume fraction of hydrogen sulfide in the final natural gas is 2.1×10 -8 .

[0045] The gas composition before and after entering the integrated equipment in this embodiment is shown in Table 1.3 Table 1.3 Composition of gases produced after photocatalytic reaction

[0046] Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but rather with reference to the preceding claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a disclaimer of such subject matter, nor should it be considered that the applicants did not consider such subject matter to be part of the disclosed inventive subject matter.

[0047] The above content is a further detailed description of the present invention. It cannot be determined that the specific implementation methods of the present invention are limited to these. For ordinary technicians in the technical field to which the present invention belongs, without departing from the concept of the present invention, they can also make several simple deductions or substitutions, which should be regarded as belonging to the protection scope of the present invention determined by the submitted claims.

Claims

1. A microwave removal and separation integrated equipment for hydrogen sulfide in natural gas, characterized in that: It comprises a cooling circulating water pipeline (1), a natural gas transmission pipeline (2), a cooling tower (3), a microwave catalytic device (5), a microwave generator (6), a cooler (9), a compressor (10), a sulfur-containing wastewater pool (11) and a natural gas storage tank (12); The input end of the cooling circulating water pipeline (1) inputs cooling water, the output end of the cooling circulating water pipeline (1) is connected to the cooling water input end of the cooling tower (3), and the cooling water output end of the cooling tower (3) is connected to the cooling water input end of the microwave catalytic device (5); One end of the natural gas transmission pipeline (2) inputs natural gas, the other end of the natural gas transmission pipeline (2) is connected to the natural gas input end of the microwave catalytic device (5), and the natural gas transmission pipeline (2) is coiled outside the cooling tower (3); The microwave output end of the microwave generator (6) is connected to the microwave input end of the microwave catalytic device (5); The first product output end of the cooling tower (3) is connected to the input end of the cooler (9), the output end of the cooler (9) is connected to the input end of the compressor (10), and the output end of the compressor (10) is respectively connected to the residual water input end of the cooling tower (3), the sulfur-containing water input end of the sulfur-containing wastewater pool (11), and the treated natural gas input end of the natural gas storage tank (12), wherein the first product includes natural gas, high-temperature water vapor, H2, and S.

2. The integrated microwave removal and separation equipment for hydrogen sulfide in natural gas according to claim 1, characterized in that: The microwave catalytic device (5) is provided with a fan (7) and a catalyst bed (8) inside. The microwave generator (6) is a tube-type microwave generator with an output power range of 300 to 4500 W, an operating frequency of 450 to 2500 MHz, an efficiency of 55 to 75%, and a power supply voltage of 3600 to 12500 V. The fan blades of the fan (7) are made of polytetrafluoroethylene, polypropylene or polyvinyl chloride, the fan blades of the fan (7) have a diameter of 100 to 250 mm, and a rotation speed of 2500 to 3500 rpm; The catalyst types of the catalyst bed (8) include MoS2 / γ-Al2O3, FeS, CoS / γ-Al2O3 or Mo2C-TiO2.

3. The integrated microwave removal and separation equipment for hydrogen sulfide in natural gas according to claim 1, characterized in that: A deflector baffle (4) is arranged inside the cooling tower (3).

4. The integrated microwave removal and separation equipment for hydrogen sulfide in natural gas according to claim 3, characterized in that: The baffle plates (4) are made of corrosion-resistant metal material, the number of the baffle plates (4) ranges from 6 to 17, the length of the baffle plates (4) ranges from 0.7 m to 1.7 m, the width of the baffle plates (4) ranges from 15 cm to 30 cm, and the plate spacing of the baffle plates (4) ranges from 15 cm to 25 cm.

5. The integrated microwave removal and separation equipment for hydrogen sulfide in natural gas according to claim 1, characterized in that: The cooling circulating water pipeline (1) is made of stainless steel, carbon steel or copper pipe, and the cooling water flow rate in the pipeline is 350-2000m 3 / h, cooling water temperature is 18~25℃; The pipeline material of the natural gas transmission pipeline (2) includes steel pipe, polyethylene pipe or composite material pipe; The material of the cooling tower (3) includes glass fiber reinforced plastics or stainless steel. The height of the cooling tower (3) is 70 to 150 m. The tower diameter of the cooling tower (3) is 7 to 20 m. The cooling capacity of the cooling tower (3) is 350 to 2000 m. 3 / h.

6. The integrated microwave removal and separation equipment for hydrogen sulfide in natural gas according to claim 1, characterized in that: The cooler (9) adopts a shell and tube structure, and the cooling capacity of the cooler (9) is 350 to 2000 m 3 / h.

7. The integrated microwave removal and separation equipment for hydrogen sulfide in natural gas according to claim 1, characterized in that: The compressor (10) is of piston type, screw type or centrifugal type. The main body material of the compressor (10) includes cast iron, aluminum or alloy. The exhaust pressure is 4.2-10 MPa and the exhaust volume is 20-200 m 3 / min, the power is 1000~4500kW, the efficiency is 70~85%, the noise level is 60~80dB, and the vibration value is 5.0~7.0mm / s.

8. The integrated microwave removal and separation equipment for hydrogen sulfide in natural gas according to claim 1, characterized in that: The sulfur-containing sewage pool (11) comprises concrete, reinforced concrete, prefabricated components and an impermeable layer. The sewage storage capacity of the sulfur-containing sewage pool (11) ranges from 0 to 60,000 L.

9. The integrated microwave removal and separation equipment for hydrogen sulfide in natural gas according to claim 1, characterized in that: The natural gas storage tank (12) adopts a double-layer container structure, the double-layer container structure comprises an inner container and an outer container, the material of the inner container adopts 16MnDR steel, the material of the outer container adopts Q235-B or 16MnR material, and the volume of the natural gas storage tank (12) is 30L to 200L.

10. A method for removing and separating hydrogen sulfide from natural gas by microwave, using the integrated equipment for removing and separating hydrogen sulfide from natural gas by microwave according to any one of claims 1 to 9, characterized in that: The following steps are involved: Cooling water flows through a cooling circulating water pipeline (1) and enters a cooling tower (3); the cooling water in the cooling tower (3) enters a microwave catalytic device (5); natural gas passes through a natural gas transmission pipeline (2) and is heated in the cooling tower before entering the microwave catalytic device (5); a microwave generator (6) generates microwaves and enters the microwave catalytic device (5); The microwaves generate heat by using water from a cooling tower (3) as a heat carrier, heating the catalyst in the microwave catalytic device (5) to decompose hydrogen sulfide in the natural gas into H2 and S, thereby obtaining a first product; The first product enters a cooling tower (3) for cooling to obtain cooled gas, and the cooled gas enters a cooler for further cooling and is compressed and liquefied by a compressor (10) to obtain residual water, sulfur-containing water and treated natural gas; the residual water is returned to the cooling tower for reuse, the sulfur-containing water is sent to a sulfur-containing wastewater pool (11), and the treated natural gas is input into a natural gas storage tank (12) for storage.

Images