Hydrogen sulfide production apparatus and method for producing hydrogen sulfide

Abstract

To provide a device for producing hydrogen sulfide with high efficiency and stability.SOLUTION: A device 1 for producing hydrogen sulfide according to the present invention comprises: a reactor 3 having a liquid sulfur filling part 2 inside; a mantle heater 4 that is first heating means of heating liquid sulfur to produce sulfur vapor; and a hydrogen supply pipe 5 that is a hydrogen supply member connected to the reactor 3. The inside of the reactor 3 is provided with a catalyst support member 6 disposed above the liquid sulfur filling part 2 and a heat insulating member 7 disposed between the catalyst support member 6 and the liquid sulfur filling part 2. It further has a jacket heater 9 that is second heating means of heating the catalyst support member 6 and a space above the catalyst support member 6. At a part of the heat insulating member 7 or around the heat insulating member 7, the upper and lower spaces of the heat insulating member 7 are in communication.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an apparatus for producing hydrogen sulfide and a method for producing hydrogen sulfide. [Background technology]

[0002] A method for producing hydrogen sulfide is known in which hydrogen gas is reacted with sulfur vapor. An example of a technique for producing hydrogen sulfide is described in Patent Document 1 (JP 2016-150860 A). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-150860 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the hydrogen sulfide production techniques disclosed in Patent Document 1 and the like, it has been difficult to achieve a sufficiently high production efficiency, and there is also room for improvement in the stability of the production efficiency.

[0005] The present invention has been made in consideration of the above circumstances, and provides a hydrogen sulfide production apparatus capable of stably producing hydrogen sulfide with high efficiency. [Means for solving the problem]

[0006] According to the present invention, A hydrogen sulfide production apparatus for producing hydrogen sulfide by reacting sulfur vapor with hydrogen gas, comprising: a reactor having a liquid sulfur filling therein; a first heating means for heating the liquid sulfur to generate sulfur vapor; A hydrogen supply member connected to the reactor; Equipped with The inside of the reactor is provided with a catalyst support member provided above the liquid sulfur-filled portion, and a heat insulating member provided between the catalyst support member and the liquid sulfur-filled portion, Further comprising a second heating means for heating the catalyst support member and a space above the catalyst support member, The upper space and the lower space of the heat insulating member are in communication with each other in a part of the heat insulating member or around the heat insulating member. An apparatus for producing hydrogen sulfide is provided.

[0007] Further, according to the present invention, In the hydrogen sulfide production apparatus described above, there is provided a method for producing hydrogen sulfide, characterized in that sulfur vapor and hydrogen gas are reacted with each other. Effect of the Invention

[0008] According to the present invention, it is possible to provide a hydrogen sulfide production device with excellent production efficiency. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a vertical cross-sectional view of an example of a hydrogen sulfide production apparatus according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a top view of an example of a heat insulating member of the hydrogen sulfide production apparatus of the present embodiment. [Diagram 3] FIG. 2 is a top view of an example of a catalyst support member of the hydrogen sulfide production apparatus of the present embodiment. [Figure 4] FIG. 2 is a vertical cross-sectional view of another example of the hydrogen sulfide production apparatus of the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In all the drawings, similar components are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

[0011] [First embodiment] Fig. 1 is a vertical cross-sectional view of the hydrogen sulfide production apparatus 1. Fig. 2 is a top view of a heat insulating member 7 provided in the hydrogen sulfide production apparatus 1. Fig. 3 is a top view of a catalyst support member 6 provided in the hydrogen sulfide production apparatus 1.

[0012] The hydrogen sulfide production apparatus 1 of this embodiment is an apparatus that produces hydrogen sulfide by reacting sulfur vapor with hydrogen gas.

[0013] The hydrogen sulfide production apparatus 1 includes a reactor 3 having a liquid sulfur-filled section 2 therein, a mantle heater 4 which is a first heating means for heating the liquid sulfur to generate sulfur vapor, and a hydrogen supply pipe 5 which is a hydrogen supply member connected to the reactor 3.

[0014] Inside the reactor 3, there are a catalyst support member 6 provided above the liquid sulfur-filled portion 2, a heat insulating member 7 provided between the catalyst support member 6 and the liquid sulfur-filled portion 2, is provided.

[0015] The hydrogen sulfide production apparatus 1 is equipped with a catalyst support member 6 and a jacket heater 9 which is a second heating means for heating the space above the catalyst support member 6, and the upper space and lower space of the insulation member 7 are connected to each other around a part of the insulation member 7 or around the insulation member 7.

[0016] In order to generate sulfur vapor, the temperature of the liquid sulfur-filled section 2 is usually adjusted to 250 to 400° C., preferably 300 to 350° C. The temperature of the liquid sulfur-filled section 2 is usually measured at the horizontal center of the liquid sulfur-filled section 2.

[0017] The problem here is that in this temperature range, the vapor pressure of sulfur fluctuates exponentially, so even a deviation of a few degrees Celsius can cause a large change in the amount of sulfur vapor generated. Therefore, in order to control the amount of sulfur vapor generated to the desired amount and stably produce hydrogen sulfide with high production efficiency, it is necessary to avoid the transmission of heat from the reactor 3 as much as possible. In this regard, in the hydrogen sulfide production apparatus 1 of this embodiment, since the heat insulating member 7 is provided between the catalyst support member 6 and the liquid sulfur-filled section 2, the heat transfer from the reactor 3 to the liquid sulfur-filled section 2 is prevented, and the temperature of the liquid sulfur-filled section 2 is prevented from rising excessively. Therefore, the sulfur vapor generation can be controlled to a desired amount, and hydrogen sulfide can be produced stably with high production efficiency.

[0018] The configuration of each part of the hydrogen sulfide production apparatus of this embodiment will be described below.

[0019] (Reactor 3) In the reactor 3, hydrogen sulfide is produced by the reaction between hydrogen gas and sulfur vapor. Specifically, the reactor 3 includes a catalyst support member 6 provided above the liquid sulfur-filled section 2, and a heat insulating member 7 provided between the catalyst support member 6 and the liquid sulfur-filled section 2.

[0020] The sulfur vapor generated in the liquid sulfur-filled section 2 is supplied to the space above the catalyst support member 6. The space above the catalyst support member 6 is filled with a catalyst. In this embodiment, the space above the catalyst support member 6 that is filled with the catalyst is called the catalyst filled section 8, and in the catalyst filled section 8, sulfur vapor reacts with hydrogen gas to produce hydrogen sulfide.

[0021] A hydrogen supply pipe 5 is connected to the reactor 3, and hydrogen gas is supplied from the hydrogen supply pipe 5.

[0022] The hydrogen supply pipe 5 is preferably disposed so that the hydrogen supply port 500, which is an outlet for hydrogen gas, is located below the catalyst support member 6. This is because hydrogen gas is supplied to the catalyst support member 6 from below, so that it passes upward in the reactor 3 and can efficiently come into contact with the catalyst filled in the catalyst filling section 8. In addition, as the hydrogen gas continues to pass upward in the reactor 3, fresh hydrogen gas is constantly supplied.

[0023] 2, the heat insulating member 7 is preferably provided with a plurality of communication holes 171. This is because the sulfur vapor generated in the liquid sulfur-filled section 2 and the hydrogen gas supplied from the hydrogen supply pipe 5 are efficiently supplied to the catalyst-filled section 8 through the communication holes 171.

[0024] 3, the catalyst support member 6 is preferably provided with a plurality of communication holes 161. This is because the sulfur vapor generated in the liquid sulfur-filled section 2 and the hydrogen gas supplied from the hydrogen supply pipe 5 are efficiently supplied to the catalyst-filled section 8 through the communication holes 161.

[0025] A catalyst (not shown) is placed on the catalyst support member 6 to promote the reaction of hydrogen gas and sulfur vapor to produce hydrogen sulfide.

[0026] On the surface of the catalyst packed in catalyst packed section 8, a reaction proceeds between the sulfur vapor generated in liquid sulfur packed section 2 and the hydrogen gas supplied from hydrogen supply pipe 5 to produce hydrogen sulfide.

[0027] In the catalyst packed section 8, the catalyst is preferably packed in a layer form so as to be in contact with the inner wall surface of the reactor 3. In this way, the catalyst can be heated by heat transfer from the inner wall surface of the reactor 3, and the heating efficiency can be increased.

[0028] In order to promote the hydrogen sulfide production reaction, the temperature of catalyst-packed section 8 is usually adjusted to 300 to 500° C., and preferably 360 to 450° C. The temperature of catalyst-packed section 8 is usually measured at the center of catalyst-packed section 8 in the horizontal direction.

[0029] The catalyst packed in the catalyst packed section 8 is a catalyst for promoting the hydrogen sulfide production reaction, and is preferably made of a material that is both resistant to sulfidation and resistant to hydrogenation, for example, made of one or more materials selected from activated carbon, zeolite, and activated alumina. From the viewpoint of reducing the amount of impurities, the catalyst is preferably made of one or more materials selected from zeolite and activated alumina, and is particularly preferably made of activated alumina, which is low-cost and highly stable at high temperatures. In order to more effectively promote the reaction between hydrogen gas and sulfur vapor, the pores of the catalyst may support a metal such as silver, platinum, molybdenum, cobalt, nickel, iron, or vanadium.

[0030] Examples of the material of the reactor 3 include metals and ceramics, but it is preferable that the material be sulfur-resistant. Examples of the sulfur-resistant material include metal-based sulfur-resistant materials such as stainless steel and aluminum, and ceramic-based sulfur-resistant materials such as quartz, boron nitride, and silicon nitride.

[0031] The inner surface of the reactor 3 is preferably subjected to anti-sulfurization treatment.

[0032] Examples of the anti-sulfuration treatment include plating with a metal or alloy having high anti-sulfuration performance, such as tin plating, chromium plating, gold plating, hot-dip aluminum plating, or alloy plating containing these metals.

[0033] Alternatively, a metal diffusion infiltration treatment may be used as a means for sulfur resistance treatment. It is known that when a metal diffusion infiltration layer is formed on the surface of a treated object by subjecting the treated object to a metal diffusion infiltration treatment, the sulfur resistance performance is improved. For example, a calorizing treatment can be used, which is a diffusion and infiltration treatment of aluminum. In the calorizing treatment, the workpiece is embedded in a steel case together with a mixture consisting of Fe-Al alloy powder and NH4Cl powder, the case is sealed, and it is heated in a furnace to form an aluminum diffusion infiltration layer on the surface of the workpiece, which improves the sulfurization resistance of the workpiece.

[0034] (Mantle Heater 4) In this embodiment, a mantle heater 4 is used as the first heating means.

[0035] The mantle heater 4 is a means for heating the liquid sulfur charge 2 in order to generate sulfur vapor.

[0036] The temperature of the mantle heater 4 is set so as to be able to adjust the temperature of the liquid sulfur-filled portion 2 within the above-mentioned temperature range. Since the required heating temperature varies depending on the diameter of the liquid sulfur-filled section 2 and the amount of catalyst filled, the temperature range of the mantle heater 4 is not particularly limited, but is preferably 250 to 400°C, and more preferably 300 to 350°C.

[0037] In the present embodiment, the mantle heater 4 is used as the first heating means, but the present invention is not limited to this and any device capable of heating liquid sulfur may be used. For example, a high-frequency induction heating device or the like may be used.

[0038] (Hydrogen supply pipe 5) The hydrogen supply pipe 5 is a member for supplying hydrogen gas to the reactor 3 .

[0039] The hydrogen supply pipe 5 is preferably disposed so that the hydrogen supply port 500, which is an outlet for hydrogen gas, is located below the catalyst support member 6. This is because hydrogen gas is supplied to the catalyst support member 6 from below, so that it passes upward in the reactor 3 and can efficiently come into contact with the catalyst filled in the catalyst filling section 8. In addition, as the hydrogen gas continues to pass upward in the reactor 3, fresh hydrogen gas is constantly supplied.

[0040] 1, the hydrogen supply pipe 5 may have a hydrogen supply regulating valve 13 that regulates the amount of hydrogen gas supplied. The amount of hydrogen gas supplied can be controlled by adjusting the opening and closing of the hydrogen supply regulating valve 13, which is preferable from the viewpoint of controlling the hydrogen sulfide production reaction carried out in the reactor 3.

[0041] As the material for the hydrogen supply pipe 5, the materials mentioned above as the material for the reactor 3 can be used.

[0042] In addition, in this embodiment, the hydrogen supply pipe 5 is used as the hydrogen supply member, but the present invention is not limited to this and any member capable of supplying hydrogen gas to the reactor 3 may be used.

[0043] (Catalyst support member 6) The catalyst support member 6 is a member for mounting a catalyst that promotes the reaction in which hydrogen sulfide is produced from hydrogen gas and sulfur vapor.

[0044] As described above, in order to enable heating by heat transfer from the inner wall surface of the reactor 3, the catalyst is preferably packed in layers so as to be in contact with the inner wall surface of the reactor 3. Therefore, the catalyst support member 6 is preferably disposed so as to be in contact with the inner wall surface of the reactor 3 in order to enable the catalyst to be placed in this manner.

[0045] 3, the catalyst support member 6 is preferably provided with a plurality of communication holes 161. By providing the catalyst support member 6 with a plurality of communication holes 161, the sulfur vapor generated in the liquid sulfur-filled section 2 and the hydrogen supplied from the hydrogen supply pipe 5 are efficiently supplied to the catalyst-filled section 8 through the plurality of communication holes 161.

[0046] As shown in FIG. 3, the catalyst support member 6 may be provided with a through hole 162 for a hydrogen supply pipe. In this case, the hydrogen supply pipe 5 passes through the through hole 162 for the hydrogen supply pipe and connects to the reactor 3.

[0047] 3, the catalyst support member 6 may be provided with a temperature sensor through hole 163, in which case the temperature sensor 15 passes through the temperature sensor through hole 163 and connects to the reactor 3. In addition, since the temperature of the reactor 3 is usually measured at the horizontal center of the reactor 3, it is preferable that the temperature sensor through hole 163 be provided at the horizontal center of the catalyst support member 6.

[0048] As the material for the catalyst support member 6, the materials mentioned above as the material for the reactor 3 can be used.

[0049] The shape of catalyst support member 6 is not particularly limited as long as it allows the catalyst to be placed thereon, but it is preferable that a plurality of communication holes 161 is provided therein as described above. For example, one or more types of porous plates selected from metal meshes such as aluminum mesh and stainless steel mesh; punched metals such as aluminum punching and stainless steel punching; and expanded metals such as aluminum expand and stainless steel expand can be used.

[0050] If necessary, the catalyst support member 6 may be formed by stacking two or more of the above-mentioned porous plates.

[0051] The diameter of the communication hole 161 provided in the catalyst support member 6 depends on the diameter of the catalyst to be placed, but is usually 26 μm or more and 1000 μm or less, and preferably 45 μm or more and 800 μm or less.

[0052] (Thermal insulation material 7) The heat insulating member 7 is a member for preventing the transmission of heat from the reactor 3 to the liquid sulfur-packed portion 2, and is provided between the catalyst support member 6 and the liquid sulfur-packed portion 2.

[0053] The heat insulating member 7 is preferably a disk-shaped member as shown in Fig. 2. Also, as shown in Fig. 1, the disk-shaped heat insulating member 7 is preferably configured to be located between the catalyst support member 6 and the liquid sulfur-filled section 2 and to cover the entire liquid sulfur-filled section 2. This further prevents heat from being transmitted from the reactor 3 to the liquid sulfur-filled section 2, and prevents the temperature of the liquid sulfur-filled section 2 from rising excessively. Therefore, it becomes possible to control the concentration of sulfur vapor to a desired concentration and stably produce hydrogen sulfide with high production efficiency.

[0054] 2, the heat insulating member 7 is preferably provided with a plurality of communication holes 171. By providing the heat insulating member 7 with a plurality of communication holes 171, the sulfur vapor generated in the liquid sulfur-filled section 2 and the hydrogen supplied from the hydrogen supply pipe 5 are efficiently supplied to the catalyst-filled section 8 through the plurality of communication holes 171.

[0055] As shown in FIG. 2, the heat insulating member 7 may be provided with a through hole 172 for a hydrogen supply pipe. In this case, the hydrogen supply pipe 5 passes through the through hole 172 for the hydrogen supply pipe and connects to the reactor 3.

[0056] 2, the heat insulating member 7 may be provided with a temperature sensor through hole 173, in which case the temperature sensor 15 passes through the temperature sensor through hole 173 and connects to the reactor 3. In addition, since the temperature of the reactor 3 is usually measured at the horizontal center of the reactor 3, it is preferable that the temperature sensor through hole 173 be provided at the horizontal center of the heat insulating member 7.

[0057] As the material for the heat insulating member 7, the materials mentioned above as the material for the reactor 3 can be used.

[0058] The shape of the heat insulating member 7 is not particularly limited, but as described above, it is preferable that the heat insulating member 7 is provided with a plurality of communication holes 171. For example, one or more types of porous plates selected from metal meshes such as aluminum mesh and stainless steel mesh, punched metals such as aluminum punching and stainless steel punching, and expanded metals such as aluminum expand and stainless steel expand can be used.

[0059] If necessary, the heat insulating member 7 may be made of two or more of the above-mentioned porous plates stacked together.

[0060] The area ratio of the communication holes 171 provided in the heat insulating member 7 is typically 0.2% or more and 50% or less, and preferably 0.5% or more and 40% or less, from the viewpoint of balancing between improving the heat insulating efficiency and improving the supply efficiency of sulfur vapor and hydrogen gas.

[0061] From the viewpoint of a balance between improving the insulation efficiency and improving the supply efficiency of sulfur vapor and hydrogen gas, the diameter of the communication hole 171 provided in the heat insulating member 7 is usually 26 μm or more and 10,000 μm or less, and preferably 45 μm or more and 5,000 μm or less.

[0062] From the viewpoint of improving the insulation efficiency, the thickness of the heat insulating member 7 is preferably 0.5 mm or more, and more preferably 1.5 mm or more. There is no particular upper limit to the thickness of the heat insulating member 7, but it is usually 20 mm or less.

[0063] (Jacket Heater 9) In this embodiment, a jacket heater 9 is used as the second heating means.

[0064] Jacket heater 9 heats catalyst support member 6 and the space above catalyst support member 6. This heats the catalyst packed in catalyst packed section 8, making it possible to promote the hydrogen sulfide production reaction.

[0065] The temperature of jacket heater 9 is configured so as to be able to adjust the temperature of catalyst packed section 8 within the above-mentioned temperature range. The required heating temperature varies depending on the diameter of catalyst packed section 8 and the amount of catalyst packed, so the temperature range of jacket heater 9 is not particularly limited, but is preferably 300 to 500°C, and more preferably 360 to 450°C.

[0066] In the present embodiment, the jacket heater 9 is used as the second heating means, but the present invention is not limited to this and any means capable of heating the catalyst may be used. For example, a high-frequency induction heating device or the like may be used.

[0067] (Hydrogen sulfide recovery pipe 10) The hydrogen sulfide recovery pipe 10 is a member for recovering hydrogen sulfide generated by the reaction between sulfur vapor and hydrogen gas.

[0068] The hydrogen sulfide recovery pipe 10 may be provided with a pressure regulating valve 11, and the pressure inside the reactor 3 can be adjusted by opening and closing the pressure regulating valve 11. The hydrogen sulfide recovery pipe 10 may also be provided with a hydrogen sulfide detector 12, which is a member for detecting the flow rate of hydrogen sulfide. The hydrogen sulfide recovery pipe 10 may also be provided with a hydrogen sulfide recovery adjusting valve 14, which is a member for adjusting the recovery amount of hydrogen sulfide gas.

[0069] (Temperature Sensor 15) The temperature sensor 15 is a member for measuring the temperature in each region of the reactor 3 .

[0070] Since the temperature of the reactor 3 is usually measured at the center of the reactor 3 in the horizontal direction, the temperature sensor 15 is preferably disposed at the center of the reactor 3 in the horizontal direction.

[0071] In the hydrogen sulfide production apparatus 1 of this embodiment, since the heat insulating member 7 is provided between the catalyst support member 6 and the liquid sulfur-filled portion 2, the heat transfer from the reactor 3 to the liquid sulfur-filled portion 2 is prevented, and the temperature of the liquid sulfur-filled portion 2 is prevented from excessively increasing. Therefore, the concentration of sulfur vapor can be controlled to a desired concentration, and hydrogen sulfide can be stably produced with high production efficiency.

[0072] (Modification) The hydrogen sulfide production apparatus of the present embodiment may include components other than those described above.

[0073] Moreover, in the hydrogen sulfide production apparatus of the present embodiment, each part may be integrally formed.

[0074] [Second embodiment] The hydrogen sulfide production apparatus of the present embodiment may further include a heat transfer member 22 arranged in contact with or in close proximity to the lower surface of the catalyst support member 6. Fig. 4 is a schematic diagram showing a vertical cross section of such a hydrogen sulfide production apparatus 21. By providing heat transfer member 22 at the bottom of catalyst support member 6, heat from jacket heater 9 covering the outside of catalyst filling section 8 is more easily transferred horizontally to catalyst filling section 8, improving the thermal uniformity of catalyst filling section 8 in the horizontal direction.

[0075] Heat transfer member 22 is preferably disposed so as to be in contact with the inner wall of catalyst packed section 8. This is to transfer heat from jacket heater 9 more efficiently.

[0076] It is preferable that a plurality of communication holes are provided in the heat transfer member 22. By providing a plurality of communication holes in the heat transfer member, the sulfur vapor generated in the liquid sulfur-filled section 2 and the hydrogen gas supplied from the hydrogen supply pipe 5 are efficiently supplied to the catalyst-filled section 8 through the plurality of communication holes.

[0077] The material of the heat transfer member 22 is not particularly limited, and the materials mentioned above as the materials of the reactor 3 can be used, but it is preferable to use a material with excellent thermal conductivity, such as aluminum, an aluminum alloy, aluminum nitride, etc.

[0078] The shape of the heat transfer member 22 is not particularly limited, but is preferably one having a plurality of communicating holes. For example, one or more types of porous plates selected from stainless steel or aluminum plates having communicating holes and a thickness of 20 mm or more can be used.

[0079] If necessary, the heat transfer member 22 may be formed by stacking two or more of the above-mentioned porous plates.

[0080] The area ratio of the communicating holes provided in the heat transfer member 22 is typically 0.2% or more and 50% or less, and preferably 0.5% or more and 40% or less, from the viewpoint of a balance between improving heat transfer efficiency and improving the efficiency of supplying sulfur vapor and hydrogen gas.

[0081] The diameter of the communication hole provided in the heat transfer member 22 is usually 26 μm or more and 10,000 μm or less, and preferably 45 μm or more and 5,000 μm or less.

[0082] In the hydrogen sulfide production apparatus 21 of this embodiment, by providing a heat transfer member 22 below the catalyst support member 6, heat from the jacket heater 9 covering the outside of the catalyst packed section 8 is easily transferred in the horizontal direction of the catalyst packed section 8, improving the heat uniformity in the horizontal direction of the catalyst packed section 8. Therefore, hydrogen sulfide can be produced more stably with higher production efficiency.

[0083] [Variations] The hydrogen sulfide production apparatus of the present embodiment may include components other than those described above.

[0084] Moreover, in the hydrogen sulfide production apparatus of the present embodiment, each part may be integrally formed.

[0085] [Hydrogen sulfide manufacturing process] A hydrogen sulfide production process using the hydrogen sulfide production apparatus 1 of this embodiment will be described.

[0086] First, in the liquid sulfur-filled section 2, liquid sulfur is heated by the mantle heater 4 to generate sulfur vapor.

[0087] In order to generate sulfur vapor, the temperature of the liquid sulfur-filled section 2 is usually adjusted to 250 to 400° C., preferably 300 to 350° C. The temperature of the liquid sulfur-filled section 2 is usually measured at the horizontal center of the liquid sulfur-filled section 2.

[0088] The problem here is that in this temperature range, the vapor pressure of sulfur fluctuates exponentially, so even a deviation of a few degrees Celsius can cause a large change in the amount of sulfur vapor generated. Therefore, in order to control the amount of sulfur vapor generated to the desired amount and stably produce hydrogen sulfide with high production efficiency, it is necessary to avoid the transmission of heat from the reactor 3 as much as possible. In this regard, in the hydrogen sulfide production apparatus 1 of this embodiment, since the heat insulating member 7 is provided between the catalyst support member 6 and the liquid sulfur-filled section 2, the heat transfer from the reactor 3 to the liquid sulfur-filled section 2 is prevented, and the temperature of the liquid sulfur-filled section 2 is prevented from excessively increasing. Therefore, it is possible to control the amount of sulfur vapor generated to a desired amount, and to stably produce hydrogen sulfide with high production efficiency.

[0089] In the hydrogen sulfide production process using the hydrogen sulfide production apparatus 1, sulfur vapor and hydrogen gas are supplied to a catalyst heated by a jacket heater 9, causing the hydrogen gas and sulfur vapor to react on the catalyst surface to generate hydrogen sulfide gas. In this case, by supplying an excess amount of hydrogen gas, it is possible to recover hydrogen sulfide gas in a diluted state with hydrogen gas. This makes it possible to reduce the concentration of hydrogen sulfide gas contained in the exhaust gas generated during pressure adjustment or at the end of the reaction, thereby simplifying the exhaust gas treatment. The concentration of hydrogen sulfide gas during recovery is preferably 1% by volume or more, more preferably 3% by volume or more, and is preferably 50% by volume or less, more preferably 30% by volume or less.

[0090] In order to promote the hydrogen sulfide production reaction, the temperature of catalyst-packed section 8 is usually adjusted to 300 to 500° C., and preferably 360 to 450° C. The temperature of catalyst-packed section 8 is usually measured at the center of catalyst-packed section 8 in the horizontal direction.

[0091] The hydrogen sulfide obtained by the production process using the hydrogen sulfide production apparatus 1 can be used, for example, in a reaction for sulfurizing a metal such as lithium. The sulfide obtained by sulfurization using the hydrogen sulfide obtained by the production process using the hydrogen sulfide production apparatus of the present embodiment can be suitably used, for example, as a positive electrode active material, a negative electrode active material, a solid electrolyte material, or an intermediate raw material for chemicals for batteries.

[0092] Although the embodiments of the present invention have been described above, these are merely examples of the present invention, and various configurations other than those described above can also be adopted. [Explanation of symbols]

[0093] 1. Hydrogen sulfide production equipment 2 Liquid sulfur filling section 3. Reactor 4. Mantle heater 5 Hydrogen supply pipe 6 Catalyst support member 7. Insulation materials 8 Catalyst filling section 9 Jacket Heater 10 Hydrogen sulfide recovery pipe 11 Pressure Regulating Valve 12 Hydrogen sulfide detector 13 Hydrogen supply control valve 14 Hydrogen sulfide recovery control valve 15 Temperature Sensor 21 Hydrogen sulfide production equipment 22 Heat transfer materials 161 Communication hole 162 Hydrogen supply pipe through hole 163 Temperature sensor through hole 171 Communication hole 172 Hydrogen supply pipe through hole 173 Temperature sensor through hole 500 Hydrogen supply port

Claims

1. A hydrogen sulfide production apparatus for producing hydrogen sulfide by reacting sulfur vapor with hydrogen gas, comprising: a reactor having a liquid sulfur filling therein; a first heating means for heating the liquid sulfur to generate sulfur vapor; A hydrogen supply member connected to the reactor; Equipped with The inside of the reactor is provided with a catalyst support member provided above the liquid sulfur-filled portion, and a heat insulating member provided between the catalyst support member and the liquid sulfur-filled portion, Further comprising a second heating means for heating the catalyst support member and a space above the catalyst support member, An upper space and a lower space of the heat insulating member are in communication with each other in a part of the heat insulating member or around the heat insulating member. Hydrogen sulfide production equipment.

2. The hydrogen sulfide production apparatus according to claim 1, The hydrogen sulfide manufacturing apparatus, wherein the heat insulating member is a metal substrate or a ceramic substrate having communicating holes.

3. The hydrogen sulfide production apparatus according to claim 1 or 2, The hydrogen sulfide production apparatus further comprises a heat transfer member disposed in contact with or adjacent to a lower surface of the catalyst support member.

4. The hydrogen sulfide production apparatus according to any one of claims 1 to 3, A hydrogen sulfide production apparatus, the inner surface of which is treated to be sulfur resistant.

5. 5. A method for producing hydrogen sulfide, comprising reacting sulfur vapor with hydrogen gas in the hydrogen sulfide production apparatus according to claim 1.

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