阅读说明：本技术 有机化合物的制造系统 (System for producing organic compound ) 是由 长谷川友也 滨地心 于 2019-10-09 设计创作，主要内容包括：本发明提供一种防止从发酵槽中排出的气体,特别是在冬季等低温环境下,因冷冻而阻塞管道的手段。其是通过微生物发酵来制造有机化合物的有机化合物的制造系统(10A),其具备：具有包含用于合成有机化合物的生物催化剂的反应器的催化剂反应装置(1)、排出从所述催化剂反应装置(1)中释放的废气的阀门(3)、连接所述催化剂反应装置(1)和所述阀门(3)的管道(6A)。其中,所述管道(6A)的至少一部分被保温材料(4)所包覆。(The invention provides a means for preventing the gas discharged from a fermentation tank from blocking a pipeline due to freezing particularly in a low-temperature environment such as winter. The disclosed system (10A) for producing an organic compound by microbial fermentation is provided with: a catalyst reaction apparatus (1) having a reactor containing a biocatalyst for synthesizing organic compounds, a valve (3) for discharging an exhaust gas released from the catalyst reaction apparatus (1), and a pipe (6A) connecting the catalyst reaction apparatus (1) and the valve (3). Wherein at least a part of the pipe (6A) is covered by a heat insulating material (4).)

1. A system for producing an organic compound by microbial fermentation, comprising:

a catalyst reaction apparatus having a reactor containing a biocatalyst for synthesizing organic compounds;

a valve that discharges an exhaust gas released from the catalyst reaction apparatus; and

a pipe connecting the catalyst reaction device and the valve, wherein,

at least a portion of the conduit is coated with an insulating material.

2. The system for producing an organic compound according to claim 1,

at least a portion of the conduit is heated by a heating mechanism,

at least a portion of the conduit and the heating mechanism are coated with the insulating material.

3. The system for producing an organic compound according to claim 1 or 2,

at least the valve joint part of the pipeline and the adjacent part are covered by the heat insulation material.

4. A system for producing an organic compound by microbial fermentation, comprising:

a catalyst reaction apparatus having a reactor containing a biocatalyst for synthesizing organic compounds;

a temporary storage tank for temporarily storing the exhaust gas released from the catalyst reaction apparatus;

a valve that controls the discharge of the exhaust gas;

a 1 st pipe connecting the catalyst reaction apparatus and the temporary storage tank; and

a 2 nd pipe connecting the temporary storage tank and the valve, wherein,

at least a part of the No. 2 pipeline is coated by an insulating material.

5. The system for producing an organic compound according to claim 4, wherein,

at least a portion of the 2 nd pipe is heated by a heating mechanism,

at least a part of the 2 nd pipeline and the heating mechanism are coated by the heat insulating material.

6. The system for producing an organic compound according to claim 4 or 5, wherein,

at least the valve joint part of the No. 2 pipeline and the adjacent part are covered by the heat insulation material.

7. The system for producing an organic compound according to any one of claims 4 to 6, wherein,

at least a part of the temporary storage tank is covered by a heat insulating material.

8. The system for producing an organic compound according to claim 7, wherein,

at least a part of the temporary storage tank is heated by a heating mechanism,

at least a part of the temporary storage tank and the heating mechanism are covered with the heat insulating material.

9. The system for producing an organic compound according to any one of claims 1 to 8, wherein,

a 3 rd pipe is provided on the downstream side of the valve,

at least a part of the No. 3 pipeline is coated by an insulating material.

10. The system for producing an organic compound according to claim 9, wherein,

at least a portion of the 3 rd pipe is heated by a heating mechanism,

at least a part of the 3 rd pipeline and the heating mechanism are coated by the heat insulating material.

Technical Field

The present invention relates to a system for producing an organic compound.

The present application claims priority to japanese patent application No. 2019-054450, which was filed in japan on 3/22/2019, and the contents of which are incorporated herein by reference.

Background

In recent years, for example, practical use of a method for producing an organic compound such as ethanol by microbial fermentation of a synthesis gas containing carbon monoxide synthesized from an exhaust gas or the like from an iron works has been studied (for example, see patent document 1). In the production of such organic compounds, there are synthesis gas injected into the fermentation tank and exhaust gas (gas not used in microbial fermentation, gas produced by microbial fermentation). Therefore, in order to adjust the internal pressure in the fermentation tank, the amount of discharged gas and the like are generally controlled by a valve. At this time, the valve is connected to the fermentation tank via a pipe.

Documents of the prior art

Patent document

Patent document 1: international publication No. 2011/087380

Disclosure of Invention

Technical problem to be solved by the invention

However, it has been found that, particularly in a low-temperature environment such as winter, freezing may occur to block the pipeline, because the gas discharged from the fermentation tank contains moisture and the pipeline is easily cooled.

Means for solving the problems

The present inventors have conducted extensive studies to solve the above problems. As a result, they have found that the above problems can be solved by coating the pipe with a heat insulating material, and have completed the present invention.

A system for producing an organic compound by microbial fermentation, comprising:

a catalyst reaction apparatus having a reactor containing a biocatalyst for synthesizing organic compounds;

a valve that discharges an exhaust gas released from the catalyst reaction apparatus; and

a pipe connecting the catalyst reaction device and the valve, wherein,

at least a portion of the conduit is coated with an insulating material.

The system for producing an organic compound according to the item [1], wherein,

at least a portion of the conduit is heated by a heating mechanism,

at least a portion of the conduit and the heating mechanism are coated with the insulating material.

The system for producing an organic compound according to the above item [1] or [2], wherein,

at least the valve joint part of the pipeline and the adjacent part are covered by the heat insulation material.

A system for producing an organic compound by microbial fermentation, comprising:

a catalyst reaction apparatus having a reactor containing a biocatalyst for synthesizing organic compounds;

a temporary storage tank for temporarily storing the exhaust gas released from the catalyst reaction apparatus;

a valve that controls the discharge of the exhaust gas;

a 1 st pipe connecting the catalyst reaction apparatus and the temporary storage tank; and

a 2 nd pipe connecting the temporary storage tank and the valve, wherein,

at least a part of the No. 2 pipeline is coated by an insulating material.

The system for producing an organic compound according to item [4], wherein,

at least a portion of the 2 nd pipe is heated by a heating mechanism,

at least a part of the 2 nd pipeline and the heating mechanism are coated by the heat insulating material.

The production system of an organic compound according to the item [4] or [5], wherein,

at least the valve joint part of the No. 2 pipeline and the adjacent part are covered by the heat insulation material.

The system for producing an organic compound according to any one of the above items [4] to [6], wherein,

at least a part of the temporary storage tank is covered by a heat insulating material.

The system for producing an organic compound according to item [7], wherein,

at least a part of the temporary storage tank is heated by a heating mechanism,

at least a part of the temporary storage tank and the heating mechanism are covered with the heat insulating material.

The system for producing an organic compound according to any one of the above items [1] to [8], wherein,

the downstream side of the valve is provided with a 3 rd pipe,

at least a part of the No. 3 pipeline is coated by an insulating material.

The system for producing an organic compound according to item [9], wherein,

at least a portion of the 3 rd pipe is heated by a heating mechanism,

at least a part of the 3 rd pipeline and the heating mechanism are coated by the heat insulating material.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the system for producing an organic compound of the present invention, freezing of a pipe in a low-temperature environment can be prevented.

Drawings

Fig. 1 is a schematic diagram of a system for producing an organic compound according to embodiment 1 of the present invention.

FIG. 2 is a schematic view of a system for producing an organic compound according to embodiment 2 of the present invention.

Detailed description of the invention

Hereinafter, an example of a preferred embodiment of the present invention will be described. However, the following embodiments are merely examples. The present invention is not limited to the following embodiments.

< embodiment 1 >

Fig. 1 is a schematic view of a system for producing an organic compound according to embodiment 1 of the present invention. The organic compound production system 10A shown in fig. 1 includes: a catalyst reaction apparatus 1 having a reactor containing a biocatalyst for synthesizing organic compounds, a valve 3 controlling the discharge of an exhaust gas released from the catalyst reaction apparatus, and a 1 st pipe 6A connecting the catalyst reaction apparatus 1 and the valve 3. At this time, at least a part of the 1 st duct 6A is covered with the heat insulating material 4. The raw material gas supply pipe 5 supplies the organic compound raw material to the catalytic reactor 1. Further, the organic compound discharge line 9 discharges the organic compound produced in the catalyst reaction apparatus 1. Further, the 3 rd pipe 6B discharges the exhaust gas discharged from the valve to the outside of the system. The arrows in fig. 1 indicate the flow direction of the gas and the like in the duct. That is, the organic compound production system 10A according to embodiment 1 includes: a raw material gas supply pipe 5, a catalytic reaction apparatus 1, an organic compound discharge pipe 9, a 1 st pipe 6A, a heat insulating material 4, a valve 3, and a 3 rd pipe 6B. Hereinafter, the description will be made in detail.

[ raw material gas supply pipe 5]

The raw material gas supply pipe 5 supplies the raw material gas to the catalytic reactor 1.

The raw material gas is not particularly limited, and may be a synthesis gas containing carbon monoxide and hydrogen obtained by partial oxidation or the like of a carbon source. Further, nitrogen, water vapor or the like may be contained as necessary.

The carbon source is not particularly limited, and may be waste containing plastics and resins, kitchen waste, coke, or the like.

When the raw material gas contains impurities, it is preferable to use a gas obtained by purifying the raw material gas as the raw material gas.

[ catalyst reaction apparatus 1]

The catalyst reaction apparatus 1 has a reactor containing a biocatalyst for synthesizing organic compounds. Thus, the organic compound can be produced by microbial fermentation.

The organic compound is not particularly limited, and examples thereof include alcohols, organic acids, fatty acids, fats and oils, ketones, biomass, and sugars. More specifically, for example, ethanol, isopropanol, acetone, acetic acid, butanediol, and the like can be given. The use of the produced organic compound is not particularly limited, and the organic compound can be used as a raw material for resins such as plastics and rubbers, and as a fuel.

The biocatalyst is not particularly limited, and for example, when ethanol as an organic compound is produced from synthesis gas (gas containing carbon monoxide and hydrogen), synthetic gas-assimilating bacteria such as Clostridium autoethanogenum (Clostridium autoethanogenum), Clostridium ljungdahlii (Clostridium ljungdahlii), Clostridium aceticum (Clostridium carboxylyticum), mucedonia thermoaceticum (moorella thermoacetica), and acetobacter woodii (acetobacter woodii) are preferably used.

The reactor preferably has: a microorganism fermentation tank, a means for keeping the temperature of the liquid medium in the microorganism fermentation tank constant, and a means for stirring the liquid medium in the microorganism fermentation tank.

The temperature of the liquid medium in the microbial fermentation tank (culture temperature) is preferably about 30 to 45 ℃, more preferably about 33 to 42 ℃, and still more preferably about 36.5 to 37.5 ℃.

The pressure in the microbial fermentation tank may be normal pressure, and is preferably about 10 to 300kPa (gauge pressure), more preferably about 20 to 200kPa (gauge pressure). By adjusting the pressure in the microbial fermentation tank within the above range, the reactivity of the gas assimilating bacteria can be further improved while suppressing an increase in facility cost due to an excessive pressure load.

[ organic Compound discharge line 9]

The organic compound discharge line 9 has a function of discharging a reaction solution containing the organic compound synthesized in the catalytic reaction apparatus 1.

The discharged reaction solution is usually subjected to a purification step such as filtration or distillation to purify the organic compound.

[1 st pipe 6A ]

The 1 st line 6A connects the catalyst reaction apparatus 1 and the valve 3.

The material of the 1 st pipe 6A is not particularly limited, and known materials such as stainless steel, copper alloy, nickel alloy, titanium, copper alloy (brass, red copper, cupronickel, etc.), aluminum alloy, carbon steel pipes (SGP, STPY, STPG, STS, STPT, STPA, STPL, etc.), and the like can be used. These materials may be used alone, or 2 or more of them may be used in combination.

Since the gas just discharged from the catalytic reactor 1 flows through the 1 st line 6A, the temperature of the discharged gas is considered to be relatively high, since it is close to the culture temperature. However, the duct is easily cooled in a low temperature environment, and if the exhaust gas flows through the cooled 1 st duct for a long time, the temperature of the exhaust gas gradually decreases, and eventually freezing may occur. Therefore, when the 1 st duct 6A is long, the effect of the present invention can be more remarkably exhibited.

Note that the 1 st duct 6A may have a bent portion. When the 1 st duct 6A has a bent portion, the angle of bending is preferably greater than 0 degrees and 120 degrees or less, more preferably greater than 0 degrees and 90 degrees or less, and still more preferably greater than 5 degrees and 90 degrees or less. When the 1 st duct 6A has a bent portion, the bent portion is more likely to be frozen when cooled, since the flow direction of the exhaust gas in the 1 st duct 6A changes and is more likely to be affected by a temperature change. Therefore, when the 1 st duct 6A has a curved portion, the effect of the present invention can be more remarkably exhibited.

That is, in the case of actually installing a manufacturing system of an organic compound, the 1 st duct 6A often has to be extended and bent, and it is not easy to change the design after installation once, and according to the present invention, freezing of the 1 st duct 6A can be reliably prevented even in such a case.

[ Heat insulating Material 4]

The insulating material 4 covers at least a portion of the 1 st pipe. This can prevent or suppress cooling of the 1 st duct, and can prevent or suppress clogging of the 1 st duct due to freezing.

Examples of the material of the heat insulating material 4 include: calcium silicate, rock wool, glass wool, polyethylene foam, urethane foam, polystyrene foam, and the like. These heat insulating materials may be used alone, or 2 or more of them may be used in combination. When 2 or more kinds are used in combination, for example, a heat insulating material having a multilayer structure in which a plurality of layers made of different materials are formed can be used, by using glass wool on the inner side (pipe side) of the heat insulating material 14 and heat-resistant polyethylene foam (heat-resistant temperature 100 to 120 ℃ C.) on the outer side.

The shape of the heat insulating material is not particularly limited, and is preferably tubular from the viewpoint of heat insulating efficiency.

The heat-resistant temperature of the heat-insulating material is preferably 100 ℃ or higher, more preferably 120 ℃ or higher, and even more preferably 150 ℃ or higher, from the viewpoint of providing a heating means described later, the viewpoint of preventing deterioration, and the like. The heat-resistant temperature can be measured in accordance with JISK 7226.

The portion for coating the heat insulating material is not particularly limited, but is preferably a portion distant from the connection portion of the catalytic reaction apparatus 1, and more preferably a portion near the connection portion of the valve 3. If the exhaust gas is cooled gradually at a portion distant from the connection portion with the catalytic converter 1, the exhaust gas is easily frozen, and it is preferable to keep the portion warm. In addition, particularly in the vicinity of the connection portion of the valve 3, the flow path is often narrowed, and freezing is facilitated, and from this point of view, it is preferable to keep the portion warm. That is, in one embodiment, at least the valve engaging portion of the pipe and the portion adjacent thereto are preferably covered with a heat insulating material.

The heat insulating material 4 may cover the portion other than the 1 st pipe. For example, at least a part of at least one selected from the catalyst reaction device 1, the organic compound discharge line 9, the valve 3, and the 3 rd line 6B may be coated. Among these, at least a part of either one or both of the valve 3 and the 3 rd pipe 6B is preferably covered.

When the vicinity of the connection portion of the valve 3 of the 1 st pipe 6A is covered with the heat insulating material, the covering rate of the heat insulating material is preferably 10% or more, more preferably 20% or more, and further preferably 30% or more, with respect to the entire length of the 1 st pipe 6A, from the joint portion with the valve 3 as a starting point. From the viewpoint of cost, the coating rate of the heat insulating material is preferably 90% or less, and more preferably 80% or less.

When the heat insulating material 4 covers only a part of the 1 st pipe 6A, the heat insulating material 4 may continuously cover the 1 st pipe 6A or may discontinuously cover the same.

[ valve 3]

The valve 3 controls the discharge of the exhaust gas released from the catalytic reaction device.

The valve is not particularly limited, and a known valve can be suitably used. In this case, the valve may be manually controlled or automatically controlled. Here, in the case of the automatic control, the composition, the gas amount, and the like of the exhaust gas may be monitored, and the valve may be controlled by the control unit based on the monitored information.

[ 3 rd pipe 6B ]

The 3 rd pipe 6B discharges the gas discharged from the valve 3 to the outside of the system. The discharged gas can be suitably used for incineration, reuse in culture, and the like. The material and the like of the 3 rd duct 6B are the same as those of the 1 st duct 6A.

[ heating mechanism ]

In one embodiment, the heating device may further include a heating mechanism.

The heating means may be a direct heating or an indirect heating.

The direct heating is not particularly limited, and a method using an electric heater or the like is exemplified.

Examples of indirect heating include a method using a heating medium such as water or antifreeze. In this case, examples of the heat source for heating the heating medium include an electric heater, heat generated in a system for producing an organic compound, and sunlight.

Among them, the heating method of the heating means is preferably indirect heating, a method using water as a heating medium is preferred, and heating using steam is preferred. In this case, the heat source for indirect heating is preferably heat or sunlight generated in the system for producing an organic compound, and more preferably heat generated in the system for producing an organic compound. Therefore, according to a preferred embodiment, the means of the heating mechanism is preferably steam heated by heat generated in the organic compound production system.

The heating means may be applied by any suitable known method depending on the heating method of the heating means. For example, when heating is performed with steam, heating using a steam pipe is preferable. When heating is performed using a steam pipe, the steam pipe may be arranged so as to contact the heating target (preferably, as described later), or may be arranged so as to be spirally wound. Among them, from the viewpoint of enabling efficient heating with 1 pipe, it is preferable to spirally wind the steam pipe.

The application position of the heating means is not particularly limited, and examples thereof include: pipeline, valve, catalyst reaction device, raw material gas supply pipe, organic compound discharge pipeline, heat preservation material. Among them, the pipe, the valve, the catalyst reaction apparatus, and the heat insulating material are preferably heated, more preferably, the pipe and the valve are heated, and still more preferably, the pipe is heated. When the pipe is heated, it is preferable to heat the portion covered with the heat insulating material from the viewpoint of high efficiency. That is, in a preferred embodiment, it is preferred that at least a portion of the pipe is heated by heating means, and the pipe and the heating means are covered with the thermal insulation material. In a further preferred embodiment, it is preferred that at least a part of the pipe is heated by contact with the steam pipe, and the heating means and the steam pipe are covered with the heat insulating material. The heating means may be applied at 1 position or at 2 or more positions.

The heating mechanism may be controlled by the control unit. The control unit starts heating when it is determined that heating is necessary and stops heating when it is determined that heating is unnecessary. In this case, it is preferable to use information obtained by the sensor in determining whether heating is necessary. For example, if the pipe is heated, a sensor for measuring the flow rate of the exhaust gas inside the pipe may be provided. When the flow rate of the exhaust gas is lower than a predetermined value, heating can be started by the control portion, and clogging in the duct can be prevented.

< preferred embodiment of embodiment 1 >

In embodiment 1, at least one selected from among the 1 st pipe 6A, the valve 3, and the 3 rd pipe 6B is preferably covered with an insulating material at least in part, and more preferably at least one selected from among the 1 st pipe 6A near the connection portion of the valve 3, and the 3 rd pipe 6B near the connection portion of the valve 3 is covered with an insulating material at least in part. The term "1 st duct 6A in the vicinity of the connection portion with the valve 3" means a region within 30%, preferably within 20%, and more preferably within 10% of the entire length of the 1 st duct 6A, starting from the joint portion with the valve 3. The phrase "3 rd duct 6B in the vicinity of the connection portion with the valve 3" means a region within 30%, preferably within 20%, and more preferably within 10% of the entire length of the 3 rd duct 6B, starting from the joint portion with the valve 3. In this case, it is preferable that the heating is performed by contact with a steam pipe, and the pipe and the steam pipe are covered with the heat insulating material.

< embodiment 2 >

Fig. 2 is a schematic view of a system for producing an organic compound according to embodiment 2 of the present invention. The organic compound production system 10B shown in fig. 2 includes: a catalyst reaction apparatus 11 having a reactor containing a biocatalyst for synthesizing organic compounds, a temporary storage tank 12 for temporarily storing an exhaust gas released from the catalyst reaction apparatus 11, a valve 13 controlling the discharge of the exhaust gas, a 1 st pipe 16A connecting the catalyst reaction apparatus and the temporary storage tank, and a 2 nd pipe 16C connecting the temporary storage tank and the valve. At this time, at least a part of the 2 nd pipe is covered with the heat insulating material 14. The organic compound production system 10B includes the source gas supply line 15, the organic compound discharge line 19, and the 3 rd line 16B, as in embodiment 1.

The system 10B for producing an organic compound according to embodiment 2 includes a temporary storage tank. By providing the temporary storage tank 12, the internal pressure in the catalytic reaction apparatus including the fermentation tank and the like can be more easily adjusted. However, the exhaust gas stored in the temporary storage tank 12 stays in the temporary storage tank for a certain period of time, and therefore the exhaust gas temperature generally gradually decreases in the temporary storage tank. Then, if the exhaust gas is sent to the valve 13 through the 2 nd pipe 16C in a state where the exhaust gas temperature is lowered, the 2 nd pipe 16C may become a more easily frozen state when it is in a low temperature environment. Therefore, in the present embodiment, a configuration is adopted in which at least a part of the 2 nd pipe is covered with the heat insulating material.

A detailed description will be given below, but since the raw material gas supply pipe, the catalytic reaction apparatus, the organic compound discharge pipe, and embodiment 1 are the same, a description thereof will be omitted.

[1 st pipe 16A ]

The 1 st pipe 16A connects the catalyst reaction apparatus and the temporary storage tank. The material and the like are the same as those of embodiment 1.

[ temporary storage tank 12]

The temporary storage tank 12 temporarily stores the exhaust gas released from the catalytic reaction apparatus.

The temporary storage tank 12 is not particularly limited, and examples thereof include a general gas-liquid separation container (Knock out drum) for performing gas-liquid separation.

[2 nd pipe 16C ]

A 2 nd conduit 16C connects the temporary storage tank and the valve. As described above, the exhaust gas flowing through the 2 nd pipe 16C stays in the temporary storage tank for a certain period of time, and therefore has a lower gas temperature than when discharged from the catalytic reaction apparatus including the fermentation tank and the like. Therefore, at least a part of the 2 nd pipe 16C is insulated with an insulating material described later.

The material and the like of the 2 nd duct 16C are the same as those of the 1 st duct 16A.

The size and material of the 1 st duct 16A and the 2 nd duct 16C are not particularly limited, and known ducts can be suitably used. Generally, the 2 nd pipe 16C is set longer than the 1 st pipe 16A. For example, the length of the 2 nd pipe 16C is usually 1 to 10 times, preferably 1 to 5 times, and more preferably 1 to 3 times the length of the 1 st pipe 16A.

In addition, as in embodiment 1, the effect of the present invention can be more remarkably exhibited when either or both of the 1 st duct 16A and the 2 nd duct 16C have a long duct and/or a curved portion.

[ Heat insulating Material 14]

Insulation 14 covers at least a portion of the 2 nd pipe. This can prevent or suppress the cooling of the 2 nd duct described above, and can prevent or suppress the clogging of the 2 nd duct due to freezing.

The material and the like of the heat insulating material 14 are the same as those of embodiment 1.

Further, the heat insulating material may cover the portion other than the 2 nd pipe, as in embodiment 1. For example, at least a part of at least 1 selected from the group consisting of the catalyst reaction device 11, the organic compound discharge line 19, the 1 st line 16A, the temporary storage tank 12, the valve 13, and the 3 rd line 16B may be coated. Among these, at least a part of at least 1 selected from the 1 st line 16A, the temporary storage tank 12, the valve 13, and the 3 rd line 16B is preferably coated, more preferably at least a part of at least 1 selected from the temporary storage tank 12, the valve 13, and the 3 rd line 16B is coated, and further preferably at least a part of either one or both of the valve 13 and the 3 rd line 16B is coated. In a preferred embodiment, at least a part of the temporary storage tank is covered with an insulating material.

[ valve 13]

Valve 13 controls the discharge of exhaust gases. The kind and control of the valve are the same as those in embodiment 1.

[ 3 rd pipe 16B ]

The 3 rd pipe 16B is disposed on the downstream side of the valve. The discharged gas can be suitably used for incineration, reuse in culture, and the like. The material and the like of the 3 rd duct 16B are the same as those of the 2 nd duct 16A.

[ heating mechanism ]

In one embodiment, the heating device may further include a heating mechanism. As for the heating mechanism, as described above.

In embodiment 2, the steam pipe is also preferably wound in a spiral shape.

The applicable position of the heating means is not particularly limited, and examples thereof include a pipe, a temporary storage tank, a valve, a catalyst reaction apparatus, a raw material gas supply pipe, an organic compound discharge pipe, and a heat insulating material. Among them, it is preferable to heat the pipeline, the temporary storage tank, the valve, the catalyst reaction apparatus, and the heat insulating material, more preferable to heat the pipeline, the temporary storage tank, and the valve, further preferable to heat the valve and the pipeline, and particularly preferable to heat the pipeline. If the pipe is heated, it is preferable to heat the portion covered with the heat insulating material from the viewpoint of high efficiency. That is, in a preferred embodiment, it is preferred that at least a portion of the tubing is heated by contact with the steam tubing, the tubing and steam tubing being coated with the insulating material. The heating means may be applied at 1 position or at 2 or more positions.

< preferred embodiment of embodiment 2 >

In embodiment 2, at least one selected from among the 2 nd pipe 16C, the valve 13, and the 3 rd pipe 16B is preferably covered with an insulating material at least in part, and more preferably at least one selected from among the 2 nd pipe 16C near the connection portion of the valve 13, and the 3 rd pipe 16B near the connection portion of the valve 13 is covered with an insulating material at least in part. The term "2 nd pipe 16C in the vicinity of the connection portion with the valve 13" means a region within 30%, preferably within 20%, and more preferably within 10% of the entire length of the 2 nd pipe 16C, starting from the joint portion with the valve 13. The phrase "3 rd duct 16B in the vicinity of the connection portion with the valve 3" means a region within 30%, preferably within 20%, and more preferably within 10% of the entire length of the 3 rd duct 16B, starting from the joint portion with the valve 13. In this case, it is preferable that the heat insulating material is heated by contact with a steam pipe, and the pipe and the steam pipe are covered with the heat insulating material.

Description of the symbols

10A, 10B organic compound production system

1. 11 catalyst reaction device

12 temporary storage tank

3. 13 valve

4. 14 heat insulating material

5. 15 raw material gas supply line

6A, 16A 1 st pipeline

6B, 16B 3 rd pipeline

16C 2 nd pipeline

9. 19 organic compound discharge line