KR102155581B1 - Steam reforming device including distributor for multiple tube reactor and method for reforming feedstock - Google Patents

Abstract

The present invention relates to a steam reforming apparatus having a plurality of reforming reaction tubes and a raw material reforming method using the same. More specifically, the compactness of the device and heat exchange efficiency are remarkably improved by integrating the raw material distribution pipe for uniformly distributing the reaction raw material to the plurality of reforming reaction tubes and the discharge focusing pipe for collecting the reformed gas generated in each reforming reaction tube. It relates to a steam reforming apparatus and a raw material reforming method capable of maximizing productivity.

Description

Steam reforming device including distributor for multi-tube reactor and raw material reforming method using the same {STEAM REFORMING DEVICE INCLUDING DISTRIBUTOR FOR MULTIPLE TUBE REACTOR AND METHOD FOR REFORMING FEEDSTOCK}

The present invention relates to a steam reforming apparatus having a plurality of reforming reaction tubes and a raw material reforming method using the same. More specifically, it relates to a steam reforming device and a raw material reforming method capable of maximizing productivity by remarkably improving the device's compactness and heat exchange efficiency.

The steam reformer is a reactor that produces hydrogen from natural gas, which is mainly composed of methane. The raw material and steam supplied to the reactor are converted into a reformed gas in which hydrogen, carbon monoxide, and carbon dioxide are mixed on the catalyst. At this time, the conversion reaction to the reformed gas is a strong endothermic reaction, and the reaction heat must be separately supplied. In addition to supplying reaction heat, the heat exchange process requires organic connection of components that perform processes within the device in order to increase overall process efficiency.

In general, the reforming apparatus includes a plurality of reactors, and each individual reactor is provided with a raw material gas introduction pipe through which the reaction raw material is supplied and a product gas discharge pipe through which the reformed gas generated after the reaction from the reactor is discharged. The raw material gas introduction pipe receives raw material from the raw material tank and supplies the reaction raw material to the reactor, and the product gas discharge pipe discharges the reformed gas generated by the reaction in the reactor. These source gas introduction pipes and product gas discharge pipes are focused from each individual reactor.

At this time, since the source gas introduction pipe and the generated gas discharge pipe collected from each of the individual reactors are separately focused, the pipes are located very complicated, and the pipes are installed at a certain distance so that they do not interfere with each other, so the volume of the device increases. There is a problem that is not good for compactness.

In particular, the raw material gas introduction pipe must be maintained at a certain temperature or higher before being introduced into the reactor, and the generated gas discharge pipe may be released in the process of transferring the heat generated from the reformed gas to the discharger, so insulation of these pipes is required separately. However, it has an inefficient problem in terms of heat operation throughout the process.

It was conceived to solve the above problems, the present invention in a reforming apparatus including a multi-tube reactor, heat loss in a line for supplying raw materials to each reforming reaction tube and a line for discharging the product gas generated by the reaction It is an object of the present invention to provide a reforming device capable of maximizing the reforming reaction efficiency as well as the heat exchange of the device by minimizing it. In addition, it is possible to achieve a compact device, so that the object can be used in various fields.

Another object of the present invention is to provide a raw material reforming method using the reforming device.

In order to achieve the above object, an aspect of the present invention is a reformer including a housing, a combustor generating reaction heat in the housing, a plurality of reforming reaction tubes and exhaust gas discharge pipes in which the reforming reaction of the raw material gas is performed, and the reforming reaction tube Is provided with a catalyst layer for a reforming reaction, a raw material gas introduction pipe for supplying raw materials to the catalyst layer on one side and a product gas discharge pipe for discharging the product gas generated by the reforming reaction on one side thereof, and the plurality of reforming reaction tubes It is to provide a reforming apparatus including a distributor integrated by contacting a raw material distribution pipe connected to each raw material gas introduction pipe and an discharge focusing pipe connected to each product gas discharge pipe.

In the reforming apparatus according to an embodiment of the present invention, the distributor may have a double pipe structure formed by a raw material distribution pipe positioned in an inner pipe and a discharge focusing pipe positioned in an outer pipe.

In the reforming apparatus according to an embodiment of the present invention, the distributor may include a heat conductor or a heat conductive layer inside the raw material distribution pipe.

In the reforming apparatus according to an embodiment of the present invention, the distributor is a ring-shaped tube disposed at the top of the housing, and the reforming reaction is formed so that the center line of the product gas discharge tube of each of the plurality of reforming reaction tubes is formed inside the ring. The tubes may be arranged.

In the reforming apparatus according to an embodiment of the present invention, the distributor may have a cross-sectional area through which the fluid flows in the discharge focusing pipe is larger than the cross-sectional area through which the fluid flows in the raw material distribution pipe.

In the reforming apparatus according to an embodiment of the present invention, the housing may include a support member having a hole through which the reforming reaction tube can penetrate at an upper end.

In the reforming device according to an embodiment of the present invention, the reforming device may include an exhaust gas discharge pipe on one side of the housing.

Another aspect of the present invention is to provide a hydrogen production system comprising the above reforming device.

In addition, another aspect of the present invention is connected to a housing, a combustor generating reaction heat inside the housing, a plurality of reforming reaction tubes in which a reforming reaction of a source gas is performed, an exhaust gas discharge pipe, and the plurality of reforming reaction tubes at the top of the housing. In a reforming apparatus including a distributor that supplies raw material gas and focuses the reformed gas,

Supplying the raw material gas to the raw material gas introduction pipe of each of the plurality of reforming reaction tubes through the raw material distribution pipe in the distributor, the step of reforming the supplied raw material with the catalyst in each reforming reaction tube, and the reforming generated by the reforming reaction Including the step of transferring and discharging the gas through the product gas discharge pipe to the discharge collecting pipe in the distributor,

It is to provide a raw material reforming method using a reforming apparatus including a multi-tube reactor, characterized in that heat exchange is performed in which heat energy of the reformed gas transferred to the discharge focusing pipe is supplied to an adjacent raw material distribution pipe.

In the raw material reforming method according to an embodiment of the present invention, the distributor may have a double pipe structure formed by positioning a raw material distribution pipe in an inner pipe and a discharge focusing pipe in an outer pipe.

In the raw material reforming method according to an embodiment of the present invention, the distributor may include a heat conductor or a heat conductive layer inside the raw material distribution pipe.

The reforming device according to the present invention can minimize the volume of the device by integrating the lines that supply raw materials to each individual reactor and the lines that focus the generated gas generated by the reaction, and each individual reactor is equipped with a plurality of tube reactors. It has the effect of maximizing productivity by not only being able to uniformly supply the reaction raw material to the device, but also remarkably improving the heat exchange efficiency and reaction efficiency in the device.

1 schematically shows a steam reforming apparatus according to an embodiment of the present invention.
2 is a schematic flowchart of a source gas and a reforming gas in a distributor according to an embodiment of the present invention.
3 schematically shows a conventional steam reforming apparatus.
4 schematically shows a plan view of a dispenser according to an embodiment of the present invention.
5 schematically shows a three-dimensional view of a steam reforming apparatus according to an embodiment of the present invention.

Hereinafter, the reforming apparatus according to the present invention will be described in more detail with reference to the drawings and specific examples. However, the following specific examples or examples are only one reference for describing the present invention in detail, and the present invention is not limited thereto, and may be implemented in various forms.

In addition, unless otherwise defined, all technical and scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used in the description herein are merely intended to effectively describe specific embodiments and are not intended to limit the invention.

In addition, the drawings introduced below are provided as examples in order to sufficiently convey the spirit of the present invention to those skilled in the art. Accordingly, the present invention is not limited to the drawings presented below, but may be embodied in other forms, and the drawings presented below may be exaggerated to clarify the spirit of the present invention. Also, throughout the specification, the same reference numerals indicate the same elements.

In addition, the singular form used in the specification and the appended claims may be intended to include the plural form unless otherwise indicated in the context.

In the present invention, the term "reaction raw material" refers to a liquid or gaseous substance including a carbon compound and water required to perform a reforming reaction in a reactor, and means a reaction raw material gas as an example, but is not limited thereto.

In the present invention, the term "reforming device" may be a steam reforming device as an example, but is not limited thereto.

In the present invention, the terms'include','included', or'have' mean that the corresponding component can be embedded unless otherwise specified, so other components are not excluded, but other components are further included. It should be interpreted as what can be done. All terms, including technical or scientific terms, unless otherwise defined, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs.

The present invention relates to a steam reforming apparatus comprising a multi-tube reactor for reforming a reaction raw material.

1 schematically shows a steam reforming apparatus according to an embodiment of the present invention. As can be seen in FIG. 1, the present invention is a multi-tube having two or more reforming reaction tubes 200 for reforming a source gas. A reforming apparatus including a reactor, comprising: a housing 500, a combustor 100 generating reaction heat at an inner center of the housing 500, a reforming reaction tube 200 disposed on a concentric line with respect to the combustor 100, and It includes an exhaust gas discharge pipe (400).

Specifically, the steam reforming apparatus 1 according to an aspect of the present invention includes a reforming reaction tube 200 in which a reforming reaction is carried out. The reforming reaction tube 200 includes a catalyst layer capable of being reformed by reacting the supplied raw material. The catalyst layer may be used without much limitation as long as it is a catalyst capable of reforming the raw material.

The reforming reaction tube 200 is provided with a raw material gas introduction pipe 201 receiving raw material on one side thereof, and the reforming gas is discharged as a product gas generated by the reforming reaction at the upper center of the reforming reaction tube 200 A product gas discharge pipe 202 is provided.

In addition, on the upper portion of the housing 500, a raw material distribution pipe 303 connected to each of the raw material gas introduction pipes 201 of the plurality of reforming reaction tubes 200 and a discharge focusing pipe connected to each of the product gas discharge pipes 202 The tube 304 includes a distributor 300 integrated in contact.

The distributor 300 has an effect of reducing the total volume of the reforming device 1 to achieve compactness of the device. Further, the raw material distribution pipe 303 and the discharge focusing pipe 304 are in contact with each other to have an integrated structure, and the reformed gas is transported through the discharge focusing pipe 304 connected to the generated gas discharge pipe 202, By allowing heat energy to be transferred to the adjacent raw material distribution pipe 303, the temperature of the reaction raw material gas can be increased before the reaction raw material gas is introduced into the reforming reaction tube 200. This is effective for rapid operation and reaction stabilization since the load until a stable reaction is reached at the initial stage of operation of the reformer can be reduced. In addition, it is possible to significantly improve the heat efficiency in the device by minimizing heat loss in the device by increasing the heat exchange efficiency, and it is more effective in terms of maximizing the reforming reaction efficiency.

2 schematically shows a flow chart of a source gas and a reformed gas in the distributor 300 according to an embodiment of the present invention, and in the distributor 300, a discharge focusing pipe 304 connected to the product gas discharge pipe 202 And a raw material distribution pipe 303 connected to the raw material gas introduction pipe 201 to supply raw materials to each reforming reaction tube. In this case, in the drawings, the raw material distribution pipe 303 and the discharge focusing pipe 304 are respectively represented by the flow of the raw material gas and the reformed gas, but the flow of the gas is understood to be named because it flows along the pipe. The raw material distribution pipe 303 is connected to a raw material injection pipe 301 into which raw materials are injected from an external raw material supplying means, and the discharge focusing pipe 304 is a reformed gas from the generated gas discharge pipe 202. It is transferred to the connected product gas discharge pipe 202 and discharged.

On the other hand, Figure 3 shows an aspect of a conventional reforming apparatus, the raw material introduction pipe 22 and the product gas discharge pipe 31 connected to the reaction tube 10 has a structure in which pipes that perform the same function are collected. That is, in order to supply the reaction raw material to the reaction tube 10, the raw material introduction pipes from the raw material injection pipe 21 to the raw material introduction pipe 22 are concentrated in the first pipe (raw material distribution pipe) 20, and the generated gas The discharge pipe has a structure in which the product gas discharge pipes are focused to the second pipe (exhaust gas focusing pipe) 30 in order to transfer the product gas generated by the reaction in the reaction tube 10 to the gas discharge pipe 32. In this structure, the first pipe 20 and the second pipe 30 are separately provided, and since the upper end of the housing is complicated due to the pipes and the distance between adjacent pipes must be regularly spaced, the device compactness rate is significantly reduced. . In addition, since each pipe is exposed to the outside, there is a problem in that it is exposed to the risk of damage during operation and maintenance work. In particular, the heat loss of these pipes rises significantly, and some of the heat energy held by the product gas discharge pipe is lost due to external heat dissipation. In addition, the raw material gas introduction pipe has a burden of separately supplying heat or insulating heat for rapid operation of the reactor.

On the other hand, as shown in FIG. 1, the distributor 300 according to an aspect of the present invention integrates the raw material distribution pipe 303 and the discharge focusing pipe 304 therein to efficiently remove the heat retained by the reformed gas from the generated gas discharge pipe. It can be used, excellent workability and structural stability can be secured, and the compactness ratio of the device can be increased, which is more effective.

According to an aspect of the present invention, the distributor 300 may have a structure of an inner tube and an exterior double tube. In a first embodiment, the distributor 300 may have a discharge focusing pipe 304 formed in an inner pipe and a raw material distribution pipe 303 formed in an outer pipe. Although not shown in the drawing, as a second specific example, the distributor may have a raw material distribution pipe 303 formed on an inner pipe and a discharge focusing pipe 304 formed on the exterior. The structure of the double pipe according to the first embodiment has a relatively high temperature discharge focusing pipe 304 as an inner pipe as compared to that according to the second embodiment, so that the heat of the reformed gas is completely out of the raw material distribution pipe 303 It is more preferable because it is transferred to and can further increase thermal efficiency, but the present invention is not necessarily limited thereto. In addition, the cross-sectional area through which the fluid flows in the discharge focusing pipe may be larger than the cross-sectional area through which the fluid flows in the raw material distribution pipe. This has an advantageous effect in that not only the efficiency of heat transfer of thermal energy from the reforming gas can be increased, but also the supplied raw material can be uniformly distributed to each individual reforming reaction tube.

The raw material distribution pipe 303 may uniformly distribute and supply the raw material supplied from the raw material injection pipe 301 to each individual reforming reaction tube 200. In addition, the discharge focusing pipe 304 collects the reformed gas generated by the reforming reaction so that it can be discharged through the gas discharge pipe 302, and may be linked to a subsequent process. The subsequent process refers to a process of separating components in the converted gas.

According to an aspect of the present invention, the distributor 300 may include a heat conductor or a heat conductive layer in the raw material distribution pipe 303. This allows heat to be efficiently transferred from the discharge focusing pipe 304 to be used, and is more effective in maximizing the overall thermal efficiency in the device.

The thermal conductor may have a porous structure, and for example, may be a porous conductive filler. The porous conductive filler may be a porous ceramic filler or a porous metal filler, and may be a metal felt, a foam metal, a lattice metal, a woven metal, and the like, but is not limited thereto. In addition, the heat conductive layer may be filled with materials having excellent thermal conductivity in the tube so that the raw material gas is smoothly permeable, but is not limited thereto. Such a heat conductor has the effect of increasing the reaction efficiency through rapid reaction stabilization at the beginning of the operation of the device by increasing the temperature of the raw material gas by increasing the temperature of the raw material gas since it can rapidly transfer the heat energy supplied with excellent thermal conductivity.

According to an aspect of the present invention, the distributor 300 is a ring-shaped tube disposed on the upper end of the housing, and includes a reforming reaction tube so that the center line of the product gas discharge tube of each of the plurality of reforming reaction tubes is formed inside the ring. It can be arranged. This is as shown in FIG. 4 to be described later, and is effective in terms of improving the overall thermal efficiency in the device.

A plurality of reforming reaction tubes 200 may be arranged on a concentric line with respect to the combustor 100 located at the inner center of the housing 500. At this time, the number and arrangement of the reforming reactors are not greatly limited, and it is preferable that each reforming reactor is replaced on a concentric line in order to achieve a balance in order to minimize the volume of the reforming device and heat exchange efficiency, but is not limited thereto. The'on the location line of concentric circles' means a line on which one or more circles are drawn based on a center point.

According to an aspect of the present invention, the housing 500 provides a space in which various accessories including the combustor 100 can be installed at the center of the upper end.

The housing 500 may have a cylindrical shape in order to reduce the volume of the device through a dense arrangement of a plurality of reforming reaction tubes, but is not limited thereto.

The combustor 100 supplies reaction heat required for the reforming reaction. The combustor 100 receives fuel and air from the outside through the fuel supply pipe 102 and the combustion air supply pipe 103, respectively, and performs combustion. One specific example of the combustor 100 may be a burner, but is not limited thereto. The combustion gas generated in the combustor 100 transfers heat to the plurality of reforming reaction tubes 200 and is exhausted to the outside through the exhaust gas discharge pipe 400. The position of the exhaust gas discharge pipe 400 may be adjusted according to the aspect or process of the reforming reactor, but may be positioned on one side of the lower end of the housing as an example, but is not limited thereto.

In the combustor 100, a combustion guide 101 may be provided at the lower end of the combustor 100 so that combustion heat can be guided vertically downward. The combustion gas generated in the combustor 100 may inject heat in the form of a flame by combustion, for example. The injected flame may locally heat some side surfaces of the reforming reaction tube 200 adjacent to the combustor 100. The combustion guide 101 may prevent such local heating by preventing direct contact from the flame to the individual reforming reaction tube 200.

The combustion guide 101 is provided to be spaced apart from the center of the housing 500 so that the combustion gas can flow into the inner space where the reforming reaction tube 200 is located. That is, the combustion guide 101 may be bonded to the upper side of the inner center of the housing 500 that is the lower end of the combustor 100.

The combustion guide 101 is not limited in its material within a range that is not corroded by deformation or oxidation due to thermal expansion at high temperature, but may be made of metal or ceramic.

The housing 500 may include a support member at an upper end having a hole through which the reforming reactor can pass. The housing may include a support member having a hole through which the reforming reaction tube 200 can pass. Through the support member, the reforming reaction tube 200 is bonded to and fixed to the hole, and the source gas introduction pipe 201 and the generated gas discharge pipe 202 connected to the reforming reaction tube 200 are exposed to the upper end of the support member. Can be. In order to insulate the exposed portion, an additional housing may be provided outside the housing 500 or an insulating material may be used to insulate the exposed portion, but is not limited thereto.

The housing 500 may have a steel structure on the inside, and the outside of the housing 500 may include a heat insulating material and surround it. At this time, it may be provided with a heat insulating material inside the steel structure. The material of the insulation material is not limited, but specifically, the insulation material provided inside is a ceramic fiber insulation material, and the insulation material provided outside may be a microporous insulation material, but is not limited thereto. As an example, the ceramic fiber insulating material may be cerakwool, and the microporous insulating material may be a microtherm, but is not limited thereto.

4 schematically shows a plan view of a reforming device according to an embodiment of the present invention. As can be seen in FIG. 4, a combustor 100 is located at the inner center of the housing 500, and a plurality of reforming reaction tubes 200 located on a concentric line at a predetermined distance from the combustor 100 are provided. The reforming reaction tube 200 has a raw material gas introduction pipe 201 on the side, a product gas discharge pipe 202 protruding from the top surface, and the raw material gas introduction pipe 201 and the product gas discharge pipe 202 Although not shown in the drawing, the connected raw material distribution pipe and discharge focusing pipe are integrated and provided in the distributor 300. In addition, the distributor 300 includes a raw material injection pipe 301 for supplying raw material gas and a gas discharge pipe 302 for collecting and discharging the reformed gas, and an exhaust gas discharge pipe 400 is provided on one side of the housing 500. It is equipped.

5 schematically shows a three-dimensional view of a distributor according to an embodiment of the present invention, provided with a raw material injection pipe 301 and a gas discharge pipe 302, the raw material gas introduction pipe 201 connected to the distributor 300 And a product gas discharge pipe 202, but the arrangement of these components may be adjusted as necessary, but is not limited thereto.

Another aspect of the present invention relates to a raw material modification method.

The raw material reforming method according to an embodiment of the present invention is carried out using the above-described reforming device, wherein the raw material gas is supplied to the raw material gas introduction pipes of each of the plurality of reforming reaction tubes through the raw material distribution pipe in the distributor, the Reforming the supplied raw material with a catalyst in each reforming reaction tube, and transferring and discharging the reformed gas generated by the reforming reaction to a discharge collecting pipe in a distributor through a product gas discharge pipe, and discharged to the discharge collecting pipe. It is characterized in that heat exchange is performed in which thermal energy of the transferred reformed gas is supplied to an adjacent raw material distribution pipe.

At this time, the distributor has a double-pipe structure formed with the raw material distribution pipe located in the inner pipe and the discharge focusing pipe located in the outer pipe, so that the heat energy possessed by the reformed gas transferred from the generated gas discharge pipe can be efficiently used. This is more effective in maximizing the overall thermal efficiency in the device.

In addition, the distributor may include a heat conductor or a heat conductive layer inside the discharge focusing tube. This has excellent thermal conductivity characteristics so that the supplied heat energy can be quickly transmitted while minimizing loss, so that the temperature of the raw material gas can be increased, and it has high efficiency even at the beginning of the operation of the reforming device, and it is more possible to secure rapid reaction stabilization. effective.

The present invention can provide a hydrogen production system for generating hydrogen by performing a water gas shift reaction (WGS) including the reforming device 1 above. As an embodiment, in the reforming device 1, air and fuel are supplied to the combustor 100 in the inner center to perform combustion and generate high-temperature exhaust gas. The exhaust gas passes through the outer surfaces of the reforming reaction tube 200 arranged in a concentric circle structure spaced apart from the inner center by a predetermined distance by the combustion guide 101. Through this, the heat of the exhaust gas is evenly transferred to the catalyst layer in the reforming reaction tube 200. Next, the reforming reaction tube 200 is subjected to a reforming reaction by contacting the reforming catalyst of the catalyst layer filled with the source gas therein. At this time, the reforming reaction is as follows.

[Scheme 1]

CH ₄ + H ₂ O → CO + 3H ₂

[Scheme 2]

CO + H ₂ O → CO ₂ + H ₂

Through the reforming reaction, a reformed gas including hydrogen, carbon monoxide, carbon dioxide, unreacted material and excess water is generated, discharged through the product gas discharge pipe 202 in the reforming reaction tube 200, and concentrated in the distributor 300. It is then connected to the subsequent process through the gas discharge pipe 302.

The reforming reaction temperature is 500 to 900°C, preferably 600 to 850°C, and the reaction pressure may be in the range of 0.2 to 1.5 MPa, preferably 0.7 to 1.0 MPa, which is only a non-limiting example and the numerical range Is not limited to

The reformed gas including a mixture of hydrogen, carbon dioxide and carbon monoxide generated by the above reaction is discharged by vertically rising along the product gas discharge pipe in the center, and the temperature at the time of discharge is higher than the temperature at the time of introduction, and the activation temperature of the catalyst is increased by thermal conduction. And increase heat exchange. That is, the catalytic reaction can be accelerated by maintaining the catalytic activity temperature, and the reforming reaction efficiency can be increased.

The reforming gas generated by the reforming reaction is a synthesis gas contained in hydrogen gas, and high purity hydrogen can be produced through a process of separating the hydrogen gas.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1: reforming device
100: combustor 101: combustion guide
102: fuel supply pipe 103: combustion air supply pipe
200: reforming reaction tube 201: raw material gas introduction pipe
202: generated gas discharge pipe 300: distributor
301: raw material injection pipe 302: gas discharge pipe
303: raw material distribution pipe 304: discharge focusing pipe
400: exhaust gas discharge pipe 500: housing
10: reaction tube 20: first pipe (raw material distribution pipe)
21: raw material injection pipe 22: raw material introduction pipe
30: second pipe (exhaust gas collecting pipe) 31: generated gas discharge pipe
32: gas discharge pipe 40: combustor
41: fuel supply pipe 42: combustion air supply pipe
50: exhaust gas discharge pipe 60: housing

Claims (11)

housing;
A combustor generating heat of reaction in the housing;
A reforming reaction tube comprising a catalyst layer and performing a reforming reaction of the raw material gas through the reaction heat of the combustor;
A source gas introduction tube for supplying a source gas to the catalyst layer of the reforming reaction tube;
A product gas discharge pipe for discharging the product gas generated in the reforming reaction tube; And
As a reforming apparatus including; a distributor for supplying the supplied raw material gas to the reforming reaction tube and discharging the generated gas from the reforming reaction tube,
The distributor,
It is formed in a double tube structure including an annular exterior and an annular inner tube disposed inside the exterior,
Either of the exterior or inner tube is connected to the source gas introduction tube to form a source distribution tube for supplying the source gas to the reforming reaction tube,
The other of the outer or inner tube is connected to the product gas discharge pipe to form a discharge focusing pipe for discharging the product gas from the reforming reaction tube,
A reforming apparatus, characterized in that heat exchange between the raw material gas and the product gas is performed through the outer wall of the inner tube of the distributor. The method of claim 1,
In the distributor, the inner tube is a raw material distribution tube, and the outer tube is a discharge focusing tube. The method of claim 1,
The distributor is a reforming apparatus including a heat conductor or a heat conductive layer inside the raw material distribution pipe. The method of claim 1,
The distributor is a ring-shaped tube disposed on the upper end of the housing, wherein the reforming reaction tube is arranged to form a center line of the product gas discharge pipe of each of the plurality of reforming reaction tubes inside the ring. The method of claim 1,
The distributor is a reforming apparatus wherein the cross-sectional area through which the fluid flows in the discharge focusing pipe is larger than the cross-sectional area through which the fluid flows in the raw material distribution pipe. The method of claim 1,
The housing is a reforming apparatus comprising a support member having a hole through which the reforming reaction tube can pass. The method of claim 1,
The reforming device is a reforming device including an exhaust gas discharge pipe on one side of the housing. A hydrogen production system comprising the reforming device of any one of claims 1 to 7. As a raw material reforming method using the reforming device of any one of claims 1 to 7,
Supplying the raw material gas to the raw material gas introduction pipe of each of the plurality of reforming reaction tubes through the raw material distribution pipe in the distributor,
Reforming the supplied raw material with a catalyst in each reforming reaction tube, and
The reformed gas generated by the reforming reaction includes the step of being transferred to and discharged from a discharge collecting pipe in a distributor through a product gas discharge pipe,
The raw material reforming method in which heat exchange is performed in which the thermal energy of the reformed gas transferred to the discharge focusing pipe is supplied to an adjacent raw material distribution pipe. The method of claim 9,
The distributor is a raw material reforming method that has a double-pipe structure formed by the raw material distribution pipe located in the inner pipe and the discharge focusing pipe located in the outer pipe. The method of claim 9,
The distributor is a raw material reforming method comprising a heat conductor or a heat conductive layer inside the raw material distribution pipe.

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