KR102346725B1 - High frequency induction heating catalytic reactor assembled catalyst coated on metallic substrate modules linked with renewable energy power systems and mobile compact hydrogen production system using it - Google Patents

Abstract

The present invention relates to a catalyst-coated metal structure module-integrated high-frequency induction heating catalytic reactor linked to a new energy power system and a mobile compact hydrogen production system including the same. The catalyst-coated metal structure module according to the present invention is inserted into one or more manifold structures of a metal structure thinly coated with a low-temperature modification catalyst in the inside of a high-frequency induction heating reactor to uniformly transfer heat, thereby saving energy and increasing hydrogen production efficiency.

Description

HIGH FREQUENCY INDUCTION HEATING CATALYTIC REACTOR ASSEMBLED CATALYST COATED ON METALLIC SUBSTRATE MODULES LINKED WITH RENEWABLE ENERGY POWER SYSTEMS AND MOBILE HYDROGEN PRODUCTION SYSTEM USING IT}

The present invention relates to a portable compact hydrogen production system linked to a new energy power system, and more particularly, to a metal structure module-integrated high frequency induction heating catalyst reactor coated with a catalyst in connection with new energy power and a mobile compact hydrogen production system using the same it's about

Hydrogen energy is a renewable future clean energy source that can replace fossil fuels with limited available reserves. Recently, due to climate change and environmental pollution caused by the use of fossil fuels, interest in hydrogen energy as a next-generation eco-friendly energy source that can replace them is increasing and the pace to enter a hydrogen economy society is accelerating.

Conventionally, hydrogen has been mainly used for basic chemical raw materials such as ammonia and methanol, as well as gas for reduction, but as the hydrogen industry such as hydrogen fuel cell vehicles and hydrogen fuel cell power generation gradually expands with the recent strengthening of greenhouse gas reduction and environmental regulations, the demand for hydrogen is increasing rapidly. In general, hydrogen is obtained through by-product hydrogen generated from petrochemical processes, hydrogen production through hydrocarbon or ammonia reforming, and water electrolysis hydrogen production using renewable energy. Among them, the hydrocarbon reforming method using liquefied natural gas (LNG, LPG), city gas, petroleum hydrocarbons, etc. is the most commonly used, and in particular, hydrogen production by steam reforming of natural gas is widely used worldwide as the cheapest method. .

Steam reforming (SR) is a method of producing hydrogen using a reforming catalyst at a high temperature due to a high endothermic reaction. The general natural gas steam reforming reaction is mainly performed at a temperature of 700 to 850 degrees, a pressure of 40 to 40 atm, and a space velocity of 3,000 to 6,000 hr ^{-1 .} Since the steam reforming reaction has a very slow rate of reaching the reaction equilibrium state and is a strong endothermic reaction, a lot of energy or heat must be supplied from the outside.

1, a typical natural gas-based hydrogen production system 10 is described with reference to FIG. 1, and the internal temperature of the tubular tube 21 in which the ceramic reforming catalyst 22 is irregularly filled in the steam reforming reactor 12 is set at 700 to 850 degrees. In order to maintain the temperature by raising it to a high temperature, heat must be supplied from the outside around the tubular tube 21 by an indirect heating method through a burner. Since it is not smoothly transmitted, a temperature gradient generated inside the tubular tube 21 is greatly generated 23 . For this reason, the tubular tube 21 must be heated from 1,000 degrees to 1,200 degrees from the outside so that the internal temperature can be constantly maintained from 700 degrees to 850 degrees. Due to these characteristics, the initial operation time is long to reach the steady state of the steam reforming reaction, and there are several problems such as excessive energy input and heat loss.

In addition, a tubular tube 21 filled irregularly with a porous ceramic reforming catalyst 22 of various shapes 30 is mounted inside the steam reforming reactor, and a large number of expensive tubular tubes 21 to improve heat transfer efficiency It has the disadvantage of incurring a lot of capital cost and operating cost. Therefore, research to develop such a steam reforming reactor 12 as a more economical system is in progress.

Korean Patent Registration No. 10-1941626 (reformation reaction device for hydrogen production using high-frequency induction heating) Korean Patent No. 10-2063414 (Induction heating type hydrocarbon reformer using transition metal catalyst for hydrocarbon reforming)

Accordingly, the present invention has been proposed in consideration of the above matters, and the present invention is a reactor in which heat supplied from a high-frequency induction heater using a new energy system is uniformly and uniformly transferred through a catalyst-coated metal structure module. An object of the present invention is to provide a metal structure module-integrated high-frequency induction heating catalyst reactor that can be directly heated to a catalyst without a temperature gradient inside.

In addition, by applying a metal structure module coated with a low-temperature reforming catalyst of a hierarchical structure, energy is saved through low-temperature reaction, and maintenance and replacement are facilitated by users, thereby minimizing capital and operating costs. The purpose of the present invention is to provide a portable compact hydrogen production system that can reduce hydrogen production costs.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. will be.

In order to achieve the above object, the metal structure module-integrated high frequency induction heating catalyst reactor coated with a new energy power system-linked catalyst according to a preferred embodiment of the present invention for achieving the above object includes a reactor body, a gas, and a reforming catalyst on the surface and a high-frequency induction heating coil part made of a metal material and surrounding the metal structure provided inside the reactor body part and the reactor body part, and generating heat in the metal structure.

Here, the reactor body and the metal structure are formed of an integrated module.

And the catalyst on the surface of the metal structure is in the form of a low-temperature reforming catalyst is coated on the metal structure.

And, the metal structure is stainless steel having a crystal structure of any one of austenitic, ferritic, and martensitic.

And the reactor body is provided so as to be withdrawn from the induction heating coil unit.

In addition, the high frequency induction heating catalytic reactor is composed of one or more manifold modules, and a copper-coated barrier rib is provided between each of the high frequency induction heating catalytic reactors.

Next, the portable compact hydrogen production system according to the present invention includes the high frequency induction heating catalytic reactor, and the high frequency induction heating catalytic reactor is provided inside a movable container or module.

And the portable compact hydrogen production system further comprises a water gas shift reaction (Water gas shift reaction) part, by supplying the waste heat generated in the high frequency induction heating catalytic reactor to the water gas transfer reaction part to the reaction heat of the water gas transfer reaction part It further includes a heat exchange unit to be used.

And the portable compact hydrogen production system supplies the gas purification unit for separating the hydrogen produced in the high frequency induction heating catalytic reactor with high purity and the waste heat generated in the high frequency induction heating catalytic reactor to the gas purification unit as reaction heat of the gas purification unit It further includes a heat exchange unit to be used.

And the portable compact hydrogen production system further includes a new energy generator for generating electric power using solar heat.

In connection with the new energy power system according to the embodiment of the present invention, the high-frequency induction heating coil machine generates heat directly from the metal structure coated with the catalyst provided therein, so the heat transfer efficiency to the catalyst is high, and the operating temperature is quickly reached and the initial operation As the time is shortened and a uniform temperature gradient is maintained in the reactor, energy saving and hydrogen production efficiency can be maximized.

In addition, since the low-temperature reforming catalyst having a hierarchical structure is directly coated on the metal structure, it is possible to have economical efficiency by minimizing the cost of hydrogen production as it shows high catalyst efficiency even at a lower reaction temperature and a smaller amount of catalyst than before.

In addition, it is composed of a manifold-type high-frequency induction heating metal structure module-integrated reactor to facilitate maintenance and replacement by users, thereby minimizing capital and operating costs and thus can have high economic feasibility compared to the prior art.

In addition, since the hydrogen production system is configured in an integrated form inside the movable container, it is possible to improve the convenience of movement and the efficiency of space use of the user.

And since the present invention receives electricity through solar power generation, hydrogen production is possible even in remote areas, and since it uses new energy, it is possible to prevent environmental pollution.

1 is an example of a typical natural gas-based hydrogen production system.
2 is a perspective view of a high frequency induction heating catalytic reactor according to an embodiment of the present invention;
3 to 4 are perspective views illustrating a high-frequency induction heating metal structure module-integrated reactor configured in the form of a manifold according to an embodiment of the present invention.
5 is a process configuration diagram of a portable compact hydrogen production system according to an embodiment of the present invention.
6 is a reference view showing the appearance of a portable compact hydrogen production system configured in the form of a container according to an embodiment of the present invention.

Before describing in detail the embodiments according to the present invention, the present invention is not limited to the configurations shown in the following detailed description or the accompanying drawings, which can be used or carried out in various ways.

It is also to be understood that the phraseology or terminology used herein is for the purpose of description only and should not be regarded as limiting.

That is, as used herein, the expressions "mounted," "installed," "connected," "connected," "supported," "coupled," etc. It is used as a broad expression including both direct and indirect mounting, installation, connection, connection, support, and coupling. The expressions “connected,” “connected,” “coupled,” are not limited to a physical or mechanical connection, connection, or coupling.

And in this specification, terms indicating a direction, such as upper, lower, downward, upward, rearward, bottom, front, rear, etc. are used to describe the drawings, but these terms are used in a direction relative to the drawing for convenience (normally viewed). when) is indicated. These directional terms are not to be taken as literally limiting or limiting the invention in any form.

In addition, terms such as "first", "second", "third" and the like used herein are for illustrative purposes only and should not be construed as implying a relative importance.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a structural diagram of a catalyst-coated metal structure module-integrated high frequency induction heating catalyst reactor 300 (hereinafter referred to as "high frequency induction heating catalyst reactor") according to an embodiment of the present invention.

Referring to FIG. 2 , the high frequency induction heating catalytic reactor 300 according to the present embodiment includes a reactor body 310 , a metal structure 332 , and an induction heating coil unit 320 .

First, the reactor body 310 is preferably made of metal, and depending on conditions, ceramic, quartz, glass, etc. may be used.

And the metal structure 332 is hydrogen is produced by the reforming reaction of water vapor and hydrocarbon or ammonia flowing therein.

To this end, a reforming catalyst 334 for effectively activating the reforming reaction is coated on the surface of the metal structure 332 .

The reforming catalyst 334 is preferably a low-temperature reforming catalyst, and after coating the catalyst slurry containing catalyst powder, dispersant, binder, etc. The low-temperature reforming catalyst may be formed on the surface of the metal structure 332 .

In addition, the reforming catalyst 334 is a low-temperature reforming catalyst having heterogeneous pores of different sizes with improved specific surface area and mass transfer ability by thinly coating the low-temperature reforming catalyst of a hierarchical structure on the surface of the metal structure 332. activity can be shown.

Next, the metal structure 332 is a metal structure in the form of a honeycomb, a corrugate, or a plate so that a reaction gas, water vapor, etc. can smoothly pass through from the top to the bottom or from the bottom to the top ( 332) is preferred.

In addition, the metal structure 332 is preferably made of stainless steel having any one of austenitic, ferritic, and martensitic crystal structures.

This is because, if the crystal structure is as described above, heat transfer is excellent and adhesion performance is excellent when the reforming catalyst 334 is coated. And this is because the production cost is low compared to other metal materials and the metal structure 332 is easy to process.

Next, the reactor body 310 is preferably made of a metal material, and may be ceramic, quartz, glass, etc. depending on conditions.

In addition, the metal structure 332 is configured in a hollow shape such as a circle or a square having a space therein so that it can be provided on the inside.

In addition, a sliding groove (not shown) and a seating portion (not shown) into which the metal structure 332 can be slidably inserted and seated may be provided inside the reactor body 310 .

However, depending on the user's selection, the reactor body 310 and the metal structure 332 may be integrally formed. When formed as an integral body in this way, the heat transfer effect can be further improved because the whole is made of a metal material with excellent heat transfer.

And the shape of the reactor body 310 and the metal structure 332 is configured so that the user can freely implement it, such as a circle (A) or a square (B), as shown in FIG. 2, and the diameter or shape varies along the height direction. can give

Next, the induction heating coil unit 320 surrounds the outside of the reactor body unit 310 in the form of a spring, and when AC power is applied, high-frequency induction heating is generated in the reactor body unit 310 and the metal structure 332 . do.

3 to 4 are perspective views illustrating the high frequency induction heating catalytic reactor manifold 200 according to an embodiment of the present invention.

The high frequency induction heating catalytic reactor manifold 200 includes one or more high frequency induction heating catalytic reactors 300 and includes a gas inlet distribution pipe 242 which is distributed from one gas inlet pipe 240 to each, likewise each of the gas discharge distribution pipe 250 is integrated into one gas discharge pipe 252 .

And in the high frequency induction heating catalytic reactor manifold 200, as shown in FIG. 3, each reactor body 310 is provided on the upper base plate 210, and each induction heating nozzle is provided on the lower base plate 230. A portion 320 is provided, and the upper base plate 210 and the lower base plate 230 are provided to be separated from each other.

In addition, each reactor body 310 provided on the upper base plate 210 is detachably provided from the upper base plate 210 .

Therefore, the user can easily maintain and replace the reactor body 310 including the reforming catalyst 334 with reduced activity or the damaged metal structure 332 .

Next, in the high frequency induction heating catalytic reactor manifold 200 , as shown in FIG. 4 , copper-coated partition walls 260 are provided between each high frequency induction heating catalytic reactor 300 .

The copper-coated partition wall 260 is configured to prevent interference of alternating current generated in each high frequency induction heating catalytic reactor 300 from affecting adjacent or facing high frequency induction heating catalytic reactors 300 .

And each high frequency induction heating catalytic reactor 300 is configured to have a different current direction from the adjacent or facing high frequency induction heating catalytic reactor 300 .

The high frequency induction heating catalytic reactor manifold 200 can be configured and used by a user in various sets as shown in FIG. 4B .

Hereinafter, a portable compact hydrogen production system 100 according to an embodiment of the present invention will be described with reference to FIGS. 5 to 6 .

The portable compact hydrogen production system 100 is a new energy generation unit 510, an energy storage system 520, an electric conversion device 530, a power control system 540, a high frequency induction heating catalyst It includes a reactor 300 , a heat exchange unit 550 , a water gas transfer reaction unit 560 , a gas purification unit 570 , and a high-purity hydrogen storage unit 580 .

The portable compact hydrogen production system 100 according to an embodiment of the present invention uses liquefied natural gas (LNG, LPG), city gas, petroleum hydrocarbons, ammonia (NH ₃ ), etc. as a raw material gas.

And the new energy generation unit 510 supplies electricity to the portable compact hydrogen production system 100 through solar power generation.

The portable compact hydrogen production system 100 according to an embodiment of the present invention uses the power produced by the new energy generator 510 directly or by converting it through the electric conversion device 530 or through the energy storage device 520 . It is possible to use it indirectly.

And it includes a power control system 540 for such power control.

For this, each is electrically connected through a power line 522 .

Next, the heat exchange unit 550 supplies waste heat generated in the high frequency induction heating catalytic reactor 300 to the water gas transfer reaction unit 560 to be used as reaction heat of the water gas transfer reaction unit 560 .

And the heat exchange unit 550 supplies the waste heat generated in the high frequency induction heating catalytic reactor 300 to the gas purification unit 570 that separates the hydrogen produced in the high frequency induction heating catalytic reactor 300 with high purity to the gas purification unit ( 570) as the heat of reaction.

For this, each is connected through a heat exchange pipe 552 and performs heat exchange.

Here, the gas purification unit 570 uses a pressure swing adsroption method for purifying hydrogen by repeating adsorption and desorption of impurities other than hydrogen through pressure and temperature changes.

The portable compact hydrogen production system 100 according to an embodiment of the present invention performs hydrogen production and transportation through a hydrogen production pipeline 302 .

And the portable compact hydrogen production system 100 according to an embodiment of the present invention can be easily moved through integration and compactness of the element process inside a container or module as shown in FIG. Hydrogen production is possible.

Although preferred embodiments of the present invention have been described above, various changes, modifications and equivalents may be used in the present invention. It is clear that the present invention can be equally applied by appropriately modifying the above embodiments. Accordingly, the above description is not intended to limit the scope of the present invention, which is defined by the limits of the following claims.

100: compact hydrogen production system 300: high frequency induction heating catalytic reactor
510: new energy generation unit 520: energy storage device (ESS)
530: electrical conversion device 540: power control system
550: heat exchange unit 560: water gas transfer reaction unit
570: gas purification unit 580: high purity hydrogen storage unit

Claims (10)

a reactor body 310 including a metal structure 332 coated with a reforming catalyst 334;
an induction heating coil unit 320 surrounding the reactor body 310 and generating a high-frequency magnetic field; and
The reaction gas penetrates and includes one or more metal structures 332 coated with a reforming catalyst 334 on a metal surface, and is provided to contact the inside of the reactor body 310 and is continuously made of a metal material from the outside to the center. A new energy power system-linked reforming catalyst comprising a; A high-frequency induction heating catalytic reactor with a coated metal structure module integrated. The method of claim 1,
The reactor body 310 and the metal structure 332 are one-piece, a metal structure module-integrated high-frequency induction heating catalytic reactor coated with a catalyst connected to a new energy power system. The method of claim 1,
The reforming catalyst 334 of the surface of the metal structure 332 is a metal structure module-integrated high-frequency induction heating catalytic reactor coated with a new energy power system-linked catalyst, in which the low-temperature reforming catalyst 334 is coated on the metal structure 332. The method of claim 1,
The metal structure 332 is a stainless steel (Stainless steel) having a crystal structure of any one of austenitic, ferritic and martensitic, a metal structure module integrated high frequency induction heating catalyst coated with a new energy power system-linked catalyst reactor. The method of claim 1,
The reactor body 310 is a metal structure module-integrated high-frequency induction heating catalytic reactor coated with a catalyst connected to a new energy power system, which is provided to be drawn in or withdrawn from the induction heating coil unit 320 . The method of claim 1,
The high frequency induction heating catalytic reactor 300 is composed of one or more manifold modules 200, and a copper-coated partition wall 260 is provided between each of the high frequency induction heating catalytic reactors 300. New energy High frequency induction heating catalytic reactor with integrated metal structure module coated with power grid-connected catalyst. It includes the high frequency induction heating catalytic reactor 300 according to claim 1,
The high frequency induction heating catalytic reactor 300 is provided in a movable container or module, a portable compact hydrogen production system. 8. The method of claim 7,
The mobile compact hydrogen production system 100 further includes a water gas transfer reaction unit 560, and supplies waste heat generated in the high frequency induction heating catalytic reactor 300 to the water gas transfer reaction unit 560 to A portable compact hydrogen production system further comprising; a heat exchange unit 550 to be used as the reaction heat of the water gas transfer reaction unit 560. 8. The method of claim 7,
The mobile compact hydrogen production system 100 includes a gas purification unit 570 for separating hydrogen produced in the high frequency induction heating catalytic reactor 300 with high purity;
A portable compact, further comprising a; hydrogen production system. 8. The method of claim 7,
The portable compact hydrogen production system 100 is a new energy generation unit 510 for generating electric power using solar heat; further comprising, a portable compact hydrogen production system.

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