KR20090067894A - Reforming reactor - Google Patents

Abstract

The present invention relates to a reforming reactor, and more particularly, a combustion / reformation unit for generating a reformed gas by reacting an externally supplied reforming raw material with a combustion raw material; A water gas shift reaction unit connected to the combustion / reformation unit, wherein the reformed gas discharged from the combustion / reformation unit is reacted with hot water supplied from the outside to reduce carbon monoxide contained in the reformed gas; And a selective oxidation reaction unit connected to the water gas shift reaction unit and an external device, wherein the reformed gas discharged from the water gas shift reaction unit and the externally supplied air are reacted to reduce residual carbon monoxide contained in the reformed gas. Characterized in that, the reforming reactor according to the present invention has a low heat loss and generates a large amount of hydrogen.

Description

Reactor for reforming fuel

The present invention relates to a reforming reactor, and more particularly, to shortening a flow path between each reaction unit to reduce heat loss, to easily control the temperature of each reaction unit, and to a reforming reactor having a high hydrogen generation amount.

In general, energy production by fossil fuels accounts for the most part. However, as interest in environmental problems such as global warming and carbon monoxide emission control increases, demand for next generation pollution-free power generation technology is increasing.

The principle of electricity generation of fuel cell, the next generation pollution-free power generation technology, is to produce electrical energy by chemical combination of hydrogen and oxygen, and hydrogen supply device is very important for continuous electricity production.

The fuel reforming system serves to continuously supply hydrogen to the fuel cell system.

Recently, attempts to apply a fuel cell as a power source for portable electronic devices have been increasing.

Therefore, in order to use a fuel cell system in a portable manner, constraints of small size and light weight occur, and thermal insulation measures and low energy loss measures are required for small size and light weight.

Fuel reforming systems have various reaction temperature ranges over a temperature range of 80 ° C to 700 ° C.

Although fuel cells have higher power generation efficiency than other power generation systems, the 1 ~ 3 kW class used at home has a power generation efficiency of about 20%. Therefore, heat recovery must be performed in the system itself.

Effective heat exchange network design, insulation and minimizing heat loss have a significant impact on improving the thermal efficiency of fuel reforming systems.

In the above design, each reaction and heat exchange type should be considered, and the heat loss should be minimized by minimizing the length of the flow path between the reactors.

The silicon thin-film methanol reformer used in the conventional small or mobile fuel cell system has a problem in that the manufacturing process is difficult, expensive, and the heat exchange between modules is not easy, so that the overall efficiency of the system is lowered.

In addition, the conventional cylindrical reformer has a problem that the heat transfer is not made faster than the plate-type reformer because the response speed is slow and the thermal efficiency is low according to the load change.

The present invention is to solve the above problems, an object of the present invention is to shorten the flow path between each reaction unit to reduce the heat loss, easy to control the temperature of each reaction unit, provides a reforming reactor with high hydrogen generation amount It is.

Reforming reactor according to an aspect of the present invention, the combustion / reforming reaction unit is a reaction of the reformed raw material and the combustion raw material supplied from the outside to generate a reformed gas; A water gas shift reaction unit connected to the combustion / reformation unit, wherein the reformed gas discharged from the combustion / reformation unit is reacted with hot water supplied from the outside to reduce carbon monoxide contained in the reformed gas; And a selective oxidation reaction unit connected to the water gas shift reaction unit and an external device, wherein the reformed gas discharged from the water gas shift reaction unit and the externally supplied air are reacted to reduce residual carbon monoxide contained in the reformed gas. It is preferable.

As described above, the reforming reactor according to the present invention forms a short flow path between the reactors so that the heat loss is low, the volume of the entire system is small, the heat control of each reactor is easy, and the amount of hydrogen generation is high.

Hereinafter, a reforming reactor according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The reforming reactor proposed in one embodiment of the present invention is applicable to all hydrocarbons currently used as reforming raw materials, such as methane, ethane, propane and butane, but for the convenience of description, the raw materials of the reforming reactor are methane (CH ₄ ). It describes only to the following.

1 is a block diagram of a reforming reactor according to an embodiment of the present invention.

The reforming reactor according to an embodiment of the present invention includes a combustion / reformation reaction unit 100 in which each reaction of the reformed raw material and the combustion raw material supplied from the outside is performed to generate reformed gases.

In addition, the reforming reactor according to an embodiment of the present invention is connected to the combustion / reforming reaction unit 100, the reaction of the reformed gas discharged from the combustion / reforming reaction unit 100 and hot water supplied from the outside is made A water gas shift reaction unit 200 in which carbon monoxide contained in the reformed gas is reduced.

In addition, the reforming reactor according to an embodiment of the present invention is connected to the water gas shift reaction unit 200 and the external device, the reaction of the reformed gas discharged from the water gas shift reaction unit 200 and the air supplied from the outside It comprises a selective oxidation reaction unit 300 to reduce the residual carbon monoxide contained in the reforming gas.

In addition, the reforming reactor according to an embodiment of the present invention may further include a first heat exchanger 400 connected with the combustion / reforming reaction unit 100 and the water gas shift reaction unit 200.

The first heat exchanger 400 is a heat exchange between the hot medium supplied from the outside through the selective oxidation reaction unit 300 and the reformed gas discharged from the combustion / reformation reaction unit, the heat exchanged reformed gas is water It is supplied to the gas shift reaction unit 200.

In addition, the reforming reactor according to an embodiment of the present invention is connected to the water gas shift reaction unit 200 and the selective oxidation reaction unit 300, and the reformed gas discharged from the external medium and the water gas shift reaction unit and Is connected to the second heat exchanger 500 and the combustion / reforming reaction unit 100 to exchange heat between the medium supplied from the outside and the high temperature combustion gases discharged from the combustion / reforming reaction unit. 3 may further include a heat exchanger (600).

Looking at each reaction unit in detail below,

1. Combustion / reforming reaction Unit (100)

As shown in Figure 2a, the combustion / reforming reaction unit 100 constituting the reforming reactor according to an embodiment of the present invention is the first and second plates (110, 120), channel plate 130, auxiliary channel Plate 140 and intermediate plate 150 is included.

In the present embodiment, the first and second plates are used to distinguish each plate located at the top and the bottom of each reaction unit. Hereinafter, only the first plate will be described.

FIG. 2C is a perspective view showing a first plate constituting the combustion / reforming reaction unit shown in FIG. 2A.

As shown in Figure 2c, the first plate 110 is formed with a plurality of fluid inlet port 113 and the fluid outlet port 113 at both ends, each port is divided according to the flow direction of the fluid It has the same structure.

At this time, in the reaction unit constituting the reforming reactor according to an embodiment of the present invention, the fluid introduced through one fluid inlet port formed in the middle of one end of the first plate passes through the channel plate and then ends of the second plate. It can be discharged to the outside through two discharge ports formed on both sides.

In this case, it is preferable to form a larger diameter of the port formed in the middle of the three ports formed at one end of the first plate 110 than the ports formed at both sides.

In addition, a fastening hole 114 for fastening a channel plate and an intermediate plate disposed between the first and second plates is formed inside both ends of the first plate.

The fluid inlet port 113 communicates with the first fitting hole 111 extending in the first direction and the first fitting hole 111, and the second fitting hole 112 extending in the second direction. In this structure, since the first fluid is supplied through the first fitting hole 111 and the second fluid is supplied through the second fitting hole 112, a plurality of fluids may be supplied through one inlet port. .

FIG. 2D is a plan view of the channel plate 130 constituting the combustion / reforming reaction unit shown in FIG. 2A, showing a front view and a rear view.

The channel plate 130 has a rotationally symmetrical structure of the first surface 130a and the second surface 130b with respect to the widthwise center line S, and a plurality of microchannels 139 are formed at the center of each surface. have.

In addition, fastening holes 138 for fastening with the first and second plates are formed at both ends of the channel plate 130.

The channel plate 130 has a first through hole 131 and a third through hole 133 formed in the first end portion A, and the through holes and the width direction in the second end portion B. The fourth through hole 136 and the second through hole 134 are formed to be symmetric with respect to the center line S.

In this case, the center of the first surface 130a of the channel plate will be described. In the first end portion A, a first partition 132 is formed to isolate the first through hole 131 and the microchannel. The second end portion B is provided with a second partition 135 that isolates the second through hole 134 and the microchannel 139.

In addition, the channel plate 130 has a convergence / diffusion protrusion 137 formed between the third through hole and the micro channel and between the fourth through hole and the micro channel, so that the convergence / diffusion protrusion 137 is formed at each through hole. It spreads the fluid flowing in the micro channel or converges the fluid flowing in each through hole in the micro channel.

In such a structure, the channel plate 130 has the flow of the fluid in the first surface 130a and the second surface 130b in opposite directions.

As shown in FIG. 2A, the combustion / reforming reaction unit corresponds to the auxiliary channel plate 140 having the same structure as the channel plate 130 and the auxiliary plate, and has a plurality of through holes formed at both ends thereof. It further comprises an intermediate unit consisting of the intermediate plate 150.

At this time, the intermediate unit is disposed so that the intermediate plate 150 corresponds to the adjacent channel plate 130 to extend the flow path of the fluid.

The flow of each fluid in the combustion / reforming reaction unit is described with reference to FIGS. 2A and 2B. FIG. 2B is an enlarged perspective view of a portion A of FIG. 2A, and the channel plate 130 disposed above the intermediate plate 150 is shown in a bottom perspective view.

Methane, which is a combustion material, and air are introduced together through a fluid inlet port 113 formed in the first plate 110, and methane, which is a combustion material, is supplied through the first fitting hole 111, and air is provided in a first fitting. It is supplied through the second fitting hole 112 in communication with the hole 111.

Methane and air introduced through the fluid inlet port 113 are introduced into the first through hole 131 of the channel plate 130 disposed below the first plate 110.

The methane and air cannot flow into the microchannel because a first partition is formed on the first surface and flows into the plurality of microchannels of the second surface formed in a rotationally symmetrical structure with the first surface.

Since a plurality of microchannels formed on the second surface are coated with a combustion catalyst, a combustion reaction occurs during the flow of the microchannels.

The intermediate plate 150 is disposed below the channel plate 130, and the auxiliary channel plate 140 is disposed below the intermediate plate 150.

As described above, the auxiliary channel plate 140 is formed in the same structure as the channel plate 130, and as shown in FIG. 4B, the intermediate plate 150 is provided with heating means and temperature measuring means, respectively. The first insertion opening 157 and the second insertion opening 158 are formed.

Therefore, the reaction unit may be preheated by a heating means (not shown), and the reaction temperature of the reaction unit may be confirmed by a temperature measuring means (not shown).

The combustion gas passes through the second through hole 154 of the intermediate plate 150, and then passes through the second through hole 144 of the auxiliary channel plate 140 and the fluid discharge port 124 of the second plate 120. It is discharged to outside through).

Meanwhile, methane and air that do not pass through the channel between the channel plate 130 and the intermediate plate 150 pass through the first through hole 151 of the auxiliary channel plate 140 through the first through hole 151 of the intermediate plate 150. 141 flows in.

Methane and air introduced into the first through-hole 141 of the auxiliary channel plate 140 are combusted in the course of flowing a plurality of micro-channels formed on the second surface, the combustion gas is completed in the second plate It is discharged to the outside through the fluid discharge port 124 of the.

Meanwhile, methane, which is a reforming material, and water are introduced together through the fluid inlet port 123 formed in the second plate 120, water is supplied through the first fitting hole 121, and methane, which is a reforming material, It is supplied through the second fitting hole 122 in communication with the first fitting hole 121.

Methane and water introduced through the fluid inlet port 123 flow into the third through hole 143 of the auxiliary channel plate 140 disposed above the second plate.

The methane and water flow through the converging / diffusion protrusions on the first surface of the auxiliary channel plate 140 to a plurality of microchannels, and the surface of the microchannels is coated with a reforming catalyst, thereby flowing the microchannels. The reforming reaction takes place at.

The reformed gas formed by the reforming reaction passes through the third through hole 156 of the intermediate plate 150, passes through the third through hole 136 of the channel plate 130, and the fluid of the first plate 110. It is discharged to the water gas conversion reaction unit (200 in FIG. 1) through the discharge port 114.

Meanwhile, methane and water that do not pass through the flow path between the auxiliary channel plate 130 and the intermediate plate 150 pass through the fourth through hole of the channel plate 130 through the fourth through hole 153 of the intermediate plate 150. 133 is introduced.

Methane and water introduced into the fourth through hole 133 of the channel plate 130 undergo a reforming reaction in the course of flowing a plurality of microchannels formed on the first surface, and the reformed gas formed by the reforming reaction is formed in the first plate. It is discharged to the water gas shift reaction unit (200 in FIG. 1) through the fluid discharge port 114 of 110.

As described above, the reforming reaction and the combustion reaction are performed at the first and second surfaces of the channel plate and the auxiliary channel plate, respectively, and heat generated in the combustion reaction may be used for the reforming reaction.

In the present embodiment, as a reforming catalyst, platinum group elements such as platinum, rhodium, ruthenium, osmium, iridium, palladium and nickel, gold, silver, it is selected from copper, K ₂ O or the group consisting of alkali elements and mixtures of two or more of these of MgO and the like.

At this time, the reforming catalyst is preferably used supported on the catalyst support.

As the catalyst support, α-aluminum oxide, γ-aluminum oxide, θ-aluminum oxide, zirconium oxide (ZrO ₂ ), silica (SiO ₂ ), ceria (CeO ₂ ), calcium aluminate (calcium aluminate) Or those selected from the group consisting of two or more of these mixtures are preferable, and in particular, θ-aluminum oxide is more preferably used.

Combustion catalysts used in the present embodiment include platinum group elements such as platinum, rhodium, ruthenium, osmium, iridium, palladium and nickel, and gold. Is preferably selected from the group consisting of copper or a mixture of two or more thereof.

At this time, the combustion catalyst is preferably used supported on the catalyst support.

The support of the combustion catalyst is first coated with a catalyst support, and then the aqueous solution of the combustion catalyst is added so that the amount of the combustion catalyst is 0.1 to 5 parts by weight relative to the catalyst support, followed by drying and firing treatment.

The catalyst support may be selected from the group consisting of aluminum oxide, α-aluminum oxide, zirconium oxide (ZrO ₂ ), silica (SiO ₂ ), ceria (CeO ₂ ) or a mixture of two or more thereof. It is preferable, and especially it is more preferable to use ceria.

2. Water gas shift reaction Unit (200)

The reformed gas formed after the reforming reaction in the combustion / reforming reaction unit 100 described above contains about 5% to 15% of carbon monoxide, and the carbon monoxide poisons platinum used as an electrode material of a proton exchange membrane fuel cell to fuel cells. Degrades the performance dramatically.

Therefore, it is preferable to lower the content of carbon monoxide contained in the reformed gas to 1% or less by passing the reformed gas through the water gas shift reaction unit.

3 is an exploded perspective view of a water gas shift reaction unit constituting a reforming reactor according to an embodiment of the present invention.

As shown in FIG. 3, the water gas shift reaction unit includes first and second plates 210 and 220, channel plate 230, auxiliary channel plate 240, and intermediate plate 250.

The structure and function of each plate are identical in structure and function to each plate constituting the combustion / reforming reaction unit described with reference to FIGS. 2A to 2B.

However, since the water gas shift reaction unit 200 only reacts the reformed gas that has been reformed in the combustion / reformation unit 100 with high temperature water, the difference between the number of inflow and outflow ports and the number of through holes in the intermediate plate. There is.

In addition, the channel plate 230 and the auxiliary channel plate 240 are formed in the same structure as the first surface and the second surface.

This is because the flow direction of the fluid on the first surface and the second surface of each channel plate constituting the water gas shift reaction unit 200 is the same.

Hereinafter, the flow of each fluid in the water gas shift reaction unit will be described with reference to FIG. 3.

The first plate is supplied with reformed gas discharged from the combustion / reformation reaction unit 100 and hot water supplied from the outside through the fluid inlet port 213 of the first plate 210.

At this time, the reformed gas is supplied through the first fitting hole 212, and water is supplied through the second fitting hole 212 communicating with the first fitting hole.

The reformed gas and water flow through the fourth through hole 233 of the channel plate 230 and then flow into the micro channels formed on the first and second surfaces, respectively.

Since the water gas shift catalyst is coated on the surface of the micro channel, the water gas shift reaction occurs in the process of flowing the micro channel on each surface.

The reformed gas, which has completed the water gas conversion reaction at both sides of the channel plate 230, flows together into the third through hole 256 of the intermediate plate 250 through the third through hole 236 of the channel plate 230. After passing through the third through hole 256, the second surface of the auxiliary channel plate 240 flows to form a water gas conversion reaction, and passes through the first through hole 243 of the auxiliary channel plate 240. Then, it is discharged to the selective oxidation reaction unit (300 of FIG. 1) through the fluid discharge port 223 of the second plate 220.

In addition, the reformed gas introduced into the third through hole 246 of the auxiliary channel plate through the third through hole 256 of the intermediate plate 250 flows through the first surface of the auxiliary channel plate and undergoes a water gas shift reaction. After the reaction, the reformed gas is discharged to the selective oxidation reaction unit 300 of FIG. 1 through the fluid discharge port 223 of the second plate.

Catalysts used in the water gas shift reaction in this embodiment are platinum, rhenium, ruthenium, rhodium, iron, copper and nickel. It is preferred to select from the group consisting of the same platinum group elements, gold, silver, copper and mixtures of two or more thereof.

At this time, it is preferable to use the catalyst supported on the catalyst support.

The catalyst support may include alumina, ceria, zirconia, calcium aluminate, cesium oxide, copper oxide, zinc oxide, and these. Preference is given to using those selected from the group consisting of mixtures of two or more of them.

3. Selective Oxidation Reaction Unit (300)

4 is an exploded perspective view of a selective oxidation reaction unit 300 constituting a reforming reactor according to an embodiment of the present invention, wherein the selective oxidation reaction unit includes first and second plates 310 and 320 and a channel plate 330. ), Auxiliary plates 340 and 350 and intermediate plates 360 and 370.

Each plate has the same structure as each plate of the combustion / reforming reaction unit 100 described above, and the difference in the arrangement and number of inlet and outlet ports of the first and second plates and the arrangement and number of through holes of the intermediate plate are different. Flies

Hereinafter, the flow of the fluid in the selective oxidation reaction unit will be described with reference to FIG. 4.

Air is supplied from an external device (not shown) through the fluid inlet port 311 of one end of the first plate.

The air flows through the second surface of the channel plate 330 and then passes through the third through hole 334 and the third through hole 364 of the intermediate plate 360.

The air then flows through the second surface of the auxiliary plate 340 and passes through the first through hole 341 and the first through hole 371 of the intermediate plate 370.

Thereafter, the second surface of the auxiliary plate 350 flows, and then is discharged to the outside of the reaction unit through the discharge port 321 of the third through hole and the second plate 320.

Meanwhile, the reformed gas and the air discharged from the water gas shift reaction unit are supplied through the fluid inlet port 314 formed at the other end of the first plate 310.

The reformed gas is supplied through the first fitting hole 312, and air is supplied through the second fitting hole 313.

The reformed gas and air pass through the third through hole 336 of the channel plate 330 and flow through the first surface. At this time, since the proxy reaction catalyst is coated on the plurality of microchannels formed on the first surface, the proxy reaction occurs in the process of flowing the microchannels.

The reformed gas and air undergoing the selective oxidation pass through the fourth through hole 363 of the first intermediate plate 360, and then through the fourth through hole 343 of the first auxiliary channel plate 340. 1 Flow the surface. At this time, since the selective oxidation reaction catalyst is coated on the surfaces of the plurality of micro channels formed on the first surface, the selective oxidation reaction is performed in the process of flowing the micro channel.

Thereafter, the reformed gas and air which have undergone the selective oxidation reaction pass through the fourth through hole 376 of the second intermediate plate 370, and then pass through the third through hole 356 of the second auxiliary channel plate 350. , First flow surface.

At this time, since the selective oxidation reaction catalyst is coated on the surfaces of the plurality of micro channels formed on the first surface of the second auxiliary plate 350, the selective oxidation reaction is performed in the process of flowing the micro channels.

The reformed gas after the selective oxidation reaction is discharged to the outside through the discharge port 324 of the second plate 320.

On the other hand, the reformed gas and air for selective oxidation reaction flows to the first surface of the channel plate 330 and each of the auxiliary channel plates 340 and 350, and air flows to the second surface.

At this time, since the selective oxidation reaction is exothermic, the air flowing through the second surface absorbs the heat of reaction.

Catalysts used in the selective conversion reaction include platinum group elements such as platinum, rhodium, rhenium, ruthenium, osmium, iridium and palladium, Preference is given to being selected from the group consisting of gold, silver, copper and mixtures of two or more of these.

At this time, the catalyst used for the selective oxidation reaction is preferably used supported on the catalyst support.

The catalyst support is preferably selected from the group consisting of alumina, ceria, zirconia, calcium aluminate, and mixtures of two or more thereof.

4. The first heat exchanger 400

5 is an exploded perspective view of a first heat exchanger constituting a reforming reactor according to an exemplary embodiment of the present invention, and includes first and second plates 410 and 420 and a channel plate 430.

The first heat exchanger is connected to the combustion / reforming reaction unit 100 and the water gas shift reaction unit 200 and discharged from the hot air and the combustion / reforming reaction unit supplied from the outside through the selective oxidation reaction unit 300. The heat exchange with the reformed gas is performed, and the reformed gas, which is heat exchanged, is supplied to the water gas shift reaction unit 200.

The channel plate of the first heat exchanger is formed in the same structure as the channel plate of the combustion / reforming reaction unit 100 described above, except that no catalyst layer is formed in the microchannel.

The reformed gas flows into the first heat exchanger through the inlet port 411 of the first plate 410, flows through the third surface of the channel plate 430 through the third through hole 436, and flows through the first surface. It is discharged through the discharge port 424 of the 420.

Meanwhile, air flows into the first heat exchanger through the inlet port 421 of the second plate 420, flows through the second surface through the second through hole 434 of the channel plate 430, and flows through the second surface. It is discharged through the discharge port 414 of 410.

5. Second heat exchanger 500

6 is an exploded perspective view of a second heat exchanger constituting a reforming reactor according to an exemplary embodiment of the present invention, and includes first and second plates 510 and 520 and a channel plate 530.

The second heat exchanger 500 is connected to the water gas shift reaction unit 200 and the selective oxidation reaction unit 300, and the heat exchange between the water supplied from the outside and the reformed gas discharged from the water gas shift reaction unit 200 is performed. Is done.

The channel plate of the first heat exchanger is formed in the same structure as the channel plate of the combustion / reforming reaction unit 100 described above, except that no catalyst layer is formed in the microchannel.

The reformed gas flows into the second heat exchanger through the inlet port 514 of the first plate 510, flows through the fourth through hole 533 of the channel plate 530, and flows through the first surface. It is discharged through the discharge port 521 of 520.

Meanwhile, water flows into the second heat exchanger through the inlet port 524 of the second plate 520, flows through the second through hole 534 of the channel plate 530, and flows through the second surface. It is discharged through the discharge port 511 of the 510.

6. Third heat exchanger 600

7 is an exploded perspective view of a third heat exchanger constituting a reforming reactor according to an exemplary embodiment of the present invention, and includes first and second plates 610 and 620 and a channel plate 630.

The third heat exchanger is connected to the combustion / reforming reaction unit 100 to exchange heat between the externally supplied water and the hot combustion gas discharged from the combustion / reforming reaction unit 100.

The channel plate of the first heat exchanger is formed in the same structure as the channel plate of the combustion / reforming reaction unit 100 described above, except that no catalyst layer is formed in the microchannel.

Water flows into the third heat exchanger through the inlet port 611 of the first plate 610, flows through the first surface through the fourth through hole 633 of the channel plate 630, and the second plate 620. Is discharged through the discharge port 624.

Meanwhile, the combustion gas flows into the third heat exchanger through the inlet port 621 of the second plate 620, flows through the second surface through the second through hole 634 of the channel plate 630, and flows through the second surface. It is discharged through the discharge port 614 of 610.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art having various ordinary knowledge of the present invention may make various modifications, changes, and additions within the spirit and scope of the present invention. And additions should be considered to be within the scope of the following claims.

1 is a block diagram of a reforming reactor according to an embodiment of the present invention.

Figure 2a is an exploded perspective view of the combustion / reforming reaction unit constituting the reforming reactor according to an embodiment of the present invention.

FIG. 2B is an enlarged perspective view of portion A of FIG. 2A. FIG.

FIG. 2C is a perspective view of a first plate constituting the combustion / reforming reaction unit shown in FIG. 2A. FIG.

FIG. 2D is a front view of the channel plate constituting the combustion / reforming reaction unit shown in FIG. 2A; FIG.

Figure 3 is an exploded perspective view of the water gas shift reaction unit constituting the reforming reactor according to an embodiment of the present invention.

4 is an exploded perspective view of a selective oxidation reaction unit constituting a reforming reactor according to an embodiment of the present invention.

5 is an exploded perspective view of a first heat exchanger constituting a reforming reactor according to an embodiment of the present invention.

6 is an exploded perspective view of a second heat exchanger constituting a reforming reactor according to an embodiment of the present invention.

7 is an exploded perspective view of a third heat exchanger constituting a reforming reactor according to an embodiment of the present invention.

Claims (16)

A combustion / reformation reaction unit in which a reaction of the reformed raw material and the combustion raw material supplied from the outside is performed to generate a reformed gas; A water gas shift reaction unit connected to the combustion / reformation unit, wherein the reformed gas discharged from the combustion / reformation unit is reacted with hot water supplied from the outside to reduce carbon monoxide contained in the reformed gas; And The reforming unit is connected to the water gas shift reaction unit and an external device, and includes a selective oxidation reaction unit in which a reformed gas discharged from the water gas shift reaction unit and externally supplied air are reacted to reduce residual carbon monoxide contained in the reformed gas. Reactor. The method of claim 1, wherein the combustion / reforming reaction unit, First and second plates each having a fluid inlet port and a fluid outlet port at both ends; And A channel plate disposed between the first plate and the second plate to form a flow path between the first plate and the second plate, respectively; The channel plate has a rotationally symmetrical structure with respect to the width centerline, and is formed on the first and second surfaces corresponding to the first plate and the second plate, respectively, and has a plurality of microchannels and both ends coated with a reaction catalyst. And first and second through holes respectively formed in the The fluid introduced through the inlet port of the first plate flows into the flow path formed between the channel play and the second plate through the first through hole formed at the first end of the channel plate and then through the outlet port of the second plate. Is discharged to The reforming reactor characterized in that the flow path formed between the channel plate and the first plate through the inlet port of the second plate and then discharged to the outside through the outlet port of the first plate. The method of claim 2, The inlet port of the first and second plates is a reforming reactor comprising a first fitting hole extending in the first direction and a second fitting hole communicating with the first fitting hole and extending in the second direction. The method of claim 2, wherein the channel plate, A first partition wall formed on the first surface to isolate the first through hole and the micro channel from the first end portion, and a second partition wall separating the second through hole and the micro channel from the second end portion; Reforming reactor. The method of claim 2, Further comprising an auxiliary channel plate having an identical structure to the channel plate and the intermediate channel plate corresponding to the auxiliary channel plate, and an intermediate plate having a plurality of through holes formed at both ends thereof, Wherein the intermediate unit is arranged such that the intermediate plate corresponds to an adjacent channel plate to extend the flow path of the fluid. The water gas shift reaction unit according to claim 1, wherein A first plate having a fluid inlet port at one end and a second plate having a fluid discharge port at one end; And A channel plate disposed between the first plate and the second plate to form a flow path between the first plate and the second plate, respectively; Each channel plate has a same structure and is formed on the first and second surfaces corresponding to the first and second plates, respectively, and includes a plurality of microchannels and reaction terminals coated with reaction catalysts, respectively. And a second through hole, The fluid inlet port is connected to the fluid outlet port of the first plate of the combustion / reforming reaction unit so that fluid introduced through the fluid inlet port of the first plate is formed in the first through hole formed at the first end of the channel plate. Reforming reactor characterized in that the flow through the flow path formed between the channel plate and the first plate and between the channel plate and the second plate through the discharge port through the fluid outlet port of the second plate. The method of claim 6, wherein the channel plate, A first partition wall formed on the first surface to isolate the first through hole and the micro channel from the first end portion, and a second partition wall separating the second through hole and the micro channel from the second end portion; Reforming reactor. The method of claim 6, Further comprising an auxiliary channel plate having an identical structure to the channel plate and the intermediate channel plate corresponding to the auxiliary channel plate, and an intermediate plate having a plurality of through holes formed at both ends thereof, Wherein the intermediate unit is arranged such that the intermediate plate corresponds to an adjacent channel plate to extend the flow path of the fluid. The method of claim 1, wherein the selective oxidation reaction unit, A first plate having fluid inlet ports at both ends and a second plate having fluid outlet ports at both ends; And A channel plate disposed between the first plate and the second plate to form a flow path between the first plate and the second plate, respectively; The channel plate has a rotationally symmetrical structure with respect to the center line in the width direction, and includes a plurality of microchannels each having a reaction catalyst coated on a first surface corresponding to the first plate and the second plate, a plurality of microchannels formed on the second surface, and the amount thereof. And first and second through holes respectively formed in the terminal portions, The fluid inlet port of one end of the first plate is connected to the external device, the fluid introduced from the external device flows into the flow path formed between the second surface of the channel plate and the first plate, and then the outlet port of the second plate Is discharged to the outside through The fluid inlet port of the other end of the first plate is connected to the fluid outlet port of the second plate of the water gas shift reaction unit, so that the fluid introduced into the fluid inlet port is between the second surface of the channel plate and the second plate. Reforming reactor characterized in that the flow path is formed and then discharged to the outside through the outlet port of the second plate. The method of claim 9, The fluid inlet port formed at the other end of the first plate may include a first fitting hole extending in a first direction and a second fitting hole communicating with the first fitting hole and extending in a second direction. Reactor. The method of claim 9, wherein the channel plate, A first partition wall formed on the first surface to isolate the first through hole and the micro channel from the first end portion, and a second partition wall separating the second through hole and the micro channel from the second end portion; Reforming reactor. The method of claim 9, Further comprising a plurality of intermediate units consisting of an auxiliary channel plate having the same structure as the channel plate and the auxiliary channel plate, the intermediate plate formed with a plurality of through holes at both ends, Wherein the intermediate unit is arranged such that the intermediate plate corresponds to an adjacent channel plate to extend the flow path of the fluid. The method of claim 1, It is connected to the combustion / reforming reaction unit and the water gas conversion reaction unit, and heat exchanges between the externally supplied hot medium and the reforming gas discharged from the combustion / reforming reaction unit through the selective oxidation reaction unit, and heat exchanged reforming. The reforming reactor further comprises a first heat exchanger for supplying gas to the water gas shift reaction unit. The method of claim 7, wherein A second heat exchanger connected to the water gas shift reaction unit and the selective oxidation unit, wherein heat exchange is performed between an externally supplied medium and the reformed gas discharged from the water gas shift reaction unit; And And a third heat exchanger connected to the combustion / reforming reaction unit to exchange heat between the externally supplied medium and the hot combustion gas discharged from the combustion / reforming reaction unit. The method according to claim 13 or 14, Each of the first heat exchanger, the second heat exchanger, and the third heat exchanger, A first plate formed with an inlet port and an outlet port of the fluid; A second plate having an inlet port and an outlet port of the fluid; And A channel plate disposed between the first plate and the second plate to form a flow path between the first plate and the second plate, respectively; The channel plate has a rotationally symmetrical structure with respect to the widthwise centerline, and includes a plurality of microchannels formed on first and second surfaces corresponding to the first plate and the second plate, respectively, and first and second ends formed at both ends thereof, respectively. Including through-holes In the process of flowing the medium introduced through the inlet port of the first plate and the medium introduced through the second plate along the flow path, heat exchange is performed between the two media. Reforming reactor characterized in that the discharge. The method according to any one of claims 5, 8 and 12, The intermediate plate further comprises a heating means and a temperature measuring means mounted on one side.

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