KR101752979B1 - System for hydrogen production using plasma - Google Patents

System for hydrogen production using plasma Download PDF

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Publication number
KR101752979B1
KR101752979B1 KR1020150185268A KR20150185268A KR101752979B1 KR 101752979 B1 KR101752979 B1 KR 101752979B1 KR 1020150185268 A KR1020150185268 A KR 1020150185268A KR 20150185268 A KR20150185268 A KR 20150185268A KR 101752979 B1 KR101752979 B1 KR 101752979B1
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gas
hydrogen gas
plasma
discharge tube
supply pipe
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KR1020150185268A
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Korean (ko)
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홍용철
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한국기초과학지원연구원
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/22—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of gaseous or liquid organic compounds
    • C01B3/24—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of gaseous or liquid organic compounds of hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/087—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J19/088—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/46—Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
    • C01B2203/0211—Processes for making hydrogen or synthesis gas containing a reforming step containing a non-catalytic reforming step
    • C01B2203/0216—Processes for making hydrogen or synthesis gas containing a reforming step containing a non-catalytic reforming step containing a non-catalytic steam reforming step
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/08—Methods of heating or cooling
    • C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
    • C01B2203/0861—Methods of heating the process for making hydrogen or synthesis gas by plasma
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/12—Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1205—Composition of the feed
    • C01B2203/1211—Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
    • C01B2203/1235—Hydrocarbons

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electromagnetism (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Hydrogen, Water And Hydrids (AREA)

Abstract

The present invention relates to a hydrogen gas production system using plasma, comprising: a hydrogen gas generator using plasma; And a hydrogen gas processing unit; To a hydrogen gas producing system using plasma. The present invention improves the operation cost and can provide hydrogen gas in an efficient process.

Description

TECHNICAL FIELD [0001] The present invention relates to a hydrogen gas production system using a plasma,

The present invention relates to a hydrogen gas production system using plasma.

The production of synthesis gas such as hydrogen and carbon monoxide by reforming hydrocarbon fuels such as methane can be applied to hydrogen production technology and system connected with fuel cell and it can be combined with various fields, .

Among these reforming reactions, the wet reforming process is widely used because of the high hydrogen production efficiency. In the wet reforming reaction system, when the thermal management is poor, the catalyst deteriorates at the time of forming the high temperature, so that the performance is lowered and the carbon is generated in a large amount and is adsorbed on the catalyst and the catalyst performance is lowered. The reforming system is complicated because it requires strict heat maintenance and management. In addition, it is necessary to preheat the gasifier at 1300 to 1500 DEG C and to increase the gasification cost to 25 atmospheres or higher. Therefore, it is necessary to improve the operating cost.

In addition, when a catalyst for reforming a noble metal is used, the cost of the apparatus can be reduced, but a separate reduction process is required. When the impurity such as sulfur is contained in the fuel, the active area may be lowered due to the catalyst poisoning phenomenon.

In order to solve this problem, a reforming reaction using a plasma has been proposed. For example, in the case of an arc plasma gasifier, a plasma is generated by using an inert gas such as nitrogen or argon to generate a plasma stably, Or an oxidizing agent gas such as steam is added to gasify the organic substance.

This method has a disadvantage in that the efficiency of gasification and power generation is lowered and the load of the downstream equipment is increased. In order to overcome such disadvantages, an apparatus for gasifying a hydrocarbon body by a microwave plasma gasifier has been introduced. In the case of such a microwave plasma gasifier, it is possible to stably generate plasma using oxygen or steam. However, when the plasma gas is deviated from a high temperature plasma region, not only the temperature drops rapidly but also the organic material retention time in the plasma is short, So that the gasification efficiency is lowered.

The object of the present invention is to provide a hydrogen gas production system using plasma in which a high purity hydrogen gas can be obtained and an operation cost for generating hydrogen gas is improved.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a plasma processing apparatus comprising: a hydrogen gas generating unit using plasma; And a hydrogen gas processing unit; To a hydrogen gas producing system using plasma.

According to an embodiment of the present invention, the hydrogen gas generator includes a plasma hydrogen gas generator, wherein the plasma hydrogen gas generator includes: an electromagnetic wave supply unit that oscillates electromagnetic waves of a predetermined frequency; A discharge tube in which a plasma is generated from the electromagnetic wave and a mixed gas of steam and gas supplied from the electromagnetic wave supply unit; A fixing unit fixing the lower end of the discharge tube; At least one gas supply pipe for injecting a mixed gas of steam and gas into the discharge tube in the form of a spiral; A hydrocarbon supply unit supplying a liquid, a gas, or both hydrocarbons to the plasma generated inside the discharge tube; An ignition unit for supplying initial electrons for plasma generation to the inside of the discharge tube; And a gas discharge unit for discharging the synthesis gas synthesized from the reaction of the plasma and the hydrocarbon generated in the discharge tube, wherein the gas supply unit includes a plasma including a lower end portion, an upper end portion, To a hydrogen gas production system using hydrogen gas.

According to an embodiment of the present invention, the supply pipe may be connected to the discharge tube through the fixing portion.

According to an embodiment of the present invention, the supply pipe is connected to one end of the supply pipe and the inside of the discharge pipe to spray steam and gas into the discharge pipe, The first supply pipe and the second supply pipe for supplying the gas to the inside of the discharge tube may be composed of the same number, or steam and gas may be mixed and supplied to one supply pipe.

According to an embodiment of the present invention, the supply pipe may be arranged to be inclined downward, upward, or both directions with respect to the horizontal line L of the center of the discharge tube.

According to an embodiment of the present invention, the supply pipe arranged at the upper end of the discharge tube and the supply pipe arranged at the lower end of the discharge tube may be arranged parallel to each other or spaced apart from each other.

According to an embodiment of the present invention, the gas supply unit supplies at least one of air, oxygen, nitrogen, and argon gas, and the gas supply unit can supply steam at 100 ° C or higher.

According to an embodiment of the present invention, the hydrogen gas processing unit further includes a hydrogen gas storage tank including a hydrogen gas separator for separating impurities and hydrogen gas from the produced synthesis gas, and storing the separated hydrogen gas can do.

According to an embodiment of the present invention, the hydrogen gas separator may separate the carbon powder and the hydrogen gas through the filter or may separate the carbon powder and the hydrogen gas by the cyclone.

According to an embodiment of the present invention, the hydrogen gas processing unit may further include a WGSR reactor for concentrating the hydrogen gas generated in the plasma hydrogen gas generator, wherein the WGSR reactor comprises: Can be subjected to a hydrogen substitution reaction to concentrate the hydrogen gas.

The present invention can generate a mixed gas having a high proportion of plasma H 2 by using plasma, and obtain high purity H 2 from such mixed gas.

The hydrogen gas production system of the present invention is advantageous for obtaining H 2 because the operation cost is improved and the reforming efficiency of the hydrocarbon by plasma is high.

The hydrogen gas production system according to the present invention is capable of arranging the gas supply part at various positions of the plasma gas generator, thereby more efficiently generating the steam plasma.

Fig. 1 is a schematic view of a hydrogen gas production system 1 using plasma according to an embodiment of the present invention.
FIG. 2 illustrates an exemplary configuration of a plasma hydrogen gas generator 110 according to an embodiment of the present invention.
3 is a vertical cross-sectional view illustrating a connected portion of the waveguide 125 and the discharge tube 130 of the plasma hydrogen gas generator 110 according to an embodiment of the present invention.
4 is a vertical cross-sectional view illustrating a detailed configuration of a plasma hydrogen gas generator 110 according to an embodiment of the present invention.
5 is a horizontal cross-sectional view illustrating a detailed configuration of the gas supply unit 140 of the plasma hydrogen generator 110 according to an embodiment of the present invention.
6 is a horizontal cross-sectional view illustrating a detailed configuration of a hydrocarbon supply unit 150 of the plasma hydrogen generator 110 according to an embodiment of the present invention.
FIG. 7 is an exemplary view showing the configuration of a hydrogen-based gas production system 2 using plasma according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Also, terminologies used herein are terms used to properly represent preferred embodiments of the present invention, which may vary depending on the user, intent of the operator, or custom in the field to which the present invention belongs. Therefore, the definitions of these terms should be based on the contents throughout this specification. Like reference symbols in the drawings denote like elements.

The present invention relates to a hydrogen gas production system using plasma.

According to one embodiment of the present invention, FIG. 1 exemplarily shows a configuration diagram of a hydrogen-based gas producing system 1 using plasma, according to an embodiment of the present invention, in which the manufacturing system 1 includes a plasma A used hydrogen gas generator 100, and a gas processor 200.

The plasma generated hydrogen gas generator 100 generates hydrogen gas using a plasma gasifier or a plasma reformer (wet or dry), and may include, for example, one or more plasma hydrogen gas generators 110 have.

The gas processing unit 200 separates and purifies the hydrogen gas obtained in the gas generating unit 100, and supplies the hydrogen gas to the field in which the hydrogen gas is used.

2, the plasma hydrogen gas generator 110 in FIG. 2 is a plasma hydrogen gas generator that uses a plasma to generate hydrocarbons The gas discharge unit 140, the hydrocarbon supply unit 150, the ignition unit 160, the gas discharge unit 170, and the gas discharge unit 170. [ And may include a fixing portion 180 (not shown).

The electromagnetic wave supplying unit 120 generates electromagnetic waves and supplies them to the discharge tube 130 and includes a power source unit 121, an electromagnetic wave oscillator 122, a circulator 123, a tuner 124, and a waveguide 125.

The power supply unit 121 supplies power required for driving the plasma hydrogen gas generator 110.

The electromagnetic wave oscillator 122 is connected to the power supply unit 121 and receives power from the power supply unit 121 to oscillate the electromagnetic wave. For example, it is possible to use an electromagnetic wave oscillator that oscillates electromagnetic waves having a frequency range of 902 to 928 MHz or 886 to 896 MHz, and preferably oscillates an electromagnetic wave having a frequency of 915 MHz or 896 MHz by using the electromagnetic wave oscillator 122 .

The circulator 123 is connected to the electromagnetic wave oscillator 122 and outputs the electromagnetic wave oscillated by the electromagnetic wave oscillator 122 and also protects the electromagnetic wave oscillator 122 by destroying the electromagnetic wave energy reflected by the impedance mismatch.

The tuner 124 adjusts the intensity of the incident wave and the reflected wave of the electromagnetic wave output from the circulator 123 to induce impedance matching so that the electric field induced by the electromagnetic wave is maximized within the discharge tube 130.

The waveguide 125 transmits the electromagnetic wave input from the tuner 124 to the discharge tube 130. For example, the size of the waveguide 125 is related to the frequency of the electromagnetic wave oscillated by the electromagnetic wave oscillator 122. When the frequency of the electromagnetic wave oscillated by the electromagnetic wave oscillator 122 becomes smaller, the wavelength becomes longer, The electromagnetic wave having a frequency lower than the cutoff frequency inherent to the waveguide does not flow into the waveguide 125. In other words, That is, the waveguide 125 acts as a kind of high pass filter, so that the size of the waveguide is determined according to the used frequency.

When the discharge tube 130 is inserted at a position that is 1/4 of the wavelength λg from the end of the waveguide 125, the wavelength at the position where the discharge tube is inserted is about 11 cm (≈43.5 ÷ 4).

The discharge tube 130 generates a plasma from the electromagnetic wave supplied from the electromagnetic wave supply unit 120 and a mixed gas of steam and gas supplied from the gas supply unit 140 to gasify the hydrocarbon to generate syngas. The synthesis gas mainly consists of carbon monoxide (CO) and hydrogen (H 2 ), and may further include impurities such as carbon powder and the like. The mixed gas of steam and gas injected into the discharge tube 130 stabilizes the generated plasma and forms a swirl in the discharge tube 130 to protect the inner wall of the discharge tube 130 from the high temperature plasma flame. Generally, it is very difficult to generate plasma by using only pure steam at atmospheric pressure. Even if it occurs, there is a problem that plasma is easily turned off. However, by using a mixed gas of steam and gas, Can be generated. In addition, it is possible to control the ratio of the hydrogen gas in the syngas produced by controlling the mixing ratio of the mixed gas of H 2 O and gas.

The gas supply unit 140 injects a mixed gas of steam and gas into the discharge tube 130 in a spiral shape. The gas supplies at least one of air, oxygen, nitrogen, and argon, preferably oxygen. The gas supply unit 140 may be a steam supply unit that injects water vapor of 100 DEG C or higher, preferably 100 DEG C to 145 DEG C, more preferably 100 DEG C to 140 DEG C in a swirling manner.

The hydrocarbon supply unit 150 supplies liquid, gas, or both hydrocarbons to the plasma generated inside the discharge tube 130.

The ignition unit 160 includes a pair of electrodes disposed inside the discharge tube 130 and supplies initial electrons for generating plasma through the electrodes.

The gas discharge part 170 is provided at the upper end of the discharge tube 130 and discharges the syngas produced by the plasma to the outside. For example, the gas discharging portion 170 can supply the synthesis gas to the gas processing portion 200 to separate and store the hydrogen gas.

The fixing portion 180 is made of a suitable material for fixing the lower end of the discharge tube 130, and may be formed of, for example, a carbon block.

3 is a vertical cross-sectional view illustrating a portion where a waveguide 125 and a discharge tube 130 of a plasma hydrogen gas generator 110 according to an exemplary embodiment of the present invention are connected, 3 (a), the discharge tube 130 is connected to the waveguide 125 to provide a space in which plasma is generated by the electromagnetic wave input through the waveguide 125. The discharge tube 130 is formed in a cylindrical shape and is perpendicular to the waveguide 125 at a point corresponding to 1/8 to 1/2, preferably 1/4 of the wavelength of the waveguide 125 from the end of the waveguide 125 And may be made of quartz, alumina, or ceramics for easy transmission of electromagnetic waves. The discharge tube holder 131 formed below the waveguide 125 supports the discharge tube 130 so that the discharge tube 130 is stably inserted into the waveguide 125 and fixed.

3 (b), the discharge tube 130 and the wave guide 125 are connected in the same manner. However, in order to easily fix the discharge tube 130 and to suppress gas leakage, the discharge tube 130 and the wave guide 125 protrude outward at the lower end of the discharge tube 130 And a hooking jaw 131-1 is provided. The engaging protrusion 131-1 is interposed between the first carbon block 181 and the second carbon block 182 of the fixed portion 180 to form the first carbon block 181 and the second carbon block 182 And a case 183 is formed outside the first and second carbon blocks 181 and 182 so that the discharge tube 130 can be fixed.

In this embodiment, the gas supply unit 140 includes a supply pipe connected to the discharge pipe 130, and the supply pipe is disposed through the lower end of the discharge pipe 130, for example, through the fixed part 140, 2 carbon block 182 or through the upper end of the discharge tube 130, that is, the hydrocarbon supply portion 150, to supply steam and gas at the lower end, the upper end, or both of the discharge tube 130.

The supply pipe of the gas supply unit 140 is disposed at the upper end, the lower end, or both of the discharge tube 130 so as to supply the mixed gas toward the discharge tube 130. One end of the supply tube is connected to the discharge tube 130, So that the mixed gas is injected into the discharge tube 130. 4 is a vertical cross-sectional view illustrating a detailed configuration of a plasma hydrogen gas generator 110 according to an embodiment of the present invention. FIG. 4 (a) FIG. 4 (b) shows an embodiment in which the gas supply units 140 and 140 'are disposed at the upper and lower ends of the discharge tube 130. FIG.

The gas supply unit 140 is disposed in the discharge tube 130 so as to incline toward the central horizontal line L of the discharge tube 130 and one end of the one or more supply tubes is connected to the inside of the discharge tube 130 Since the mixed gas is injected into the discharge tube 130, the gasification efficiency of the hydrocarbon can be increased. 4 (c) shows an embodiment in which the gas supply unit 140 is arranged to be inclined upward toward the horizontal line L. FIG. 4 (d) shows an embodiment in which the gas supply unit 140 is disposed at the lower end of the discharge tube 130, And the gas supply unit 140 is horizontally disposed at the upper end of the discharge tube 130. FIG 4E shows an embodiment in which the gas supply unit 140 is disposed horizontally at the lower end and the upper end of the discharge tube 130, And the supply unit 140 is arranged to be inclined upward and downward toward the horizontal line L. [

5 is a horizontal cross-sectional view illustrating a detailed configuration of a gas supply unit 140 of a plasma hydrogen gas generator 110 according to an embodiment of the present invention. In FIG. 5, The gas supply unit 140 of the plasma hydrogen gas generator 110 according to an embodiment of the present invention includes at least one first supply pipe 141 for supplying steam and at least one second supply pipe 142 for supplying gas. The first supply pipe 141 and the second supply pipe 142 are respectively connected to the inside of the discharge tube 130 at one end thereof to supply steam and gas into the discharge tube. The steam and the gas supplied to each of the first supply pipe 141 and the second supply pipe 142 may be supplied to the inside of the discharge tube 130 And mixed to form a mixed gas of steam and gas. The first supply pipe 141 and the second supply pipe 142 may be formed in an appropriate number as necessary. 5 (a) shows an embodiment in which a first supply pipe 141 and a second supply pipe 142 are provided one by one, and FIG. 5 (b) shows an example in which the first supply pipe 141 and the second supply pipe 142 are two Respectively. As shown in the figure, the first supply pipe 141 and the second supply pipe 142 may be formed in the same number. That is, when two first supply pipes 141 are formed, two second supply pipes 142 may be formed. The first supply pipe 141 and the second supply pipe 142 may be disposed at equal intervals and the first supply pipe 141 and the second supply pipe 142 may be alternately arranged ), A second supply pipe 142, a first supply pipe 141, a second supply pipe 142, ....). The first supply pipe 141 and the second supply pipe 142 may be disposed at the same interval or at different intervals at the upper end and the lower end of the discharge tube 130. In addition, the gas supply units 140 disposed at the upper and lower ends may be disposed parallel to each other or may be spaced apart from each other. 5C shows an embodiment in which the gas supply unit 140 disposed at the lower end of the discharge tube 130 and the gas supply unit 140 'disposed at the upper end are disposed at equal intervals and disposed in parallel with each other, The gas supply unit 140 disposed at the lower end of the discharge tube 130 and the gas supply unit 140 'disposed at the upper end are disposed apart from each other. The arrangement of the gas supply unit 140 is variously designed so that an optimum plasma can be formed according to the type of hydrocarbon, process conditions, and the like.

The first supply pipe 141 and the second supply pipe 142 are supplied to the discharge tube 130 so that the mixed gas of the supplied steam and gas is rotated in the form of a spiral along the inner circumferential surface of the discharge tube 130. [ The first supply pipe 141 and the second supply pipe 142 are arranged in such a manner that steam and oxygen discharged into the discharge tube 130 are discharged along the inner circumferential surface of the discharge tube 130 And is disposed inside the discharge tube 130 as much as possible. The first supply pipe 141 and the second supply pipe 142 are moved in the direction of the inner peripheral surface of the discharge tube 130 in the vicinity of one end where the first supply pipe 141 and the second supply pipe 142 are connected to the discharge pipe 130, As shown in FIG. In such a case, the supplied steam and gas are mixed with each other in the discharge tube 130 to rotate in one direction to form a vortex shape. The steam and the gas supplied from the first supply pipe 141 and the second supply pipe 142 may have the same rotational direction.

6 is a horizontal cross-sectional view illustrating a detailed configuration of a hydrocarbon feeder 150 of a plasma hydrogen generator 110 according to an embodiment of the present invention. Referring to FIG. 6, The hydrocarbon supply part 150 of the plasma hydrogen gas generator 110 according to the embodiment includes one or more hydrocarbon supply pipes 151 and is connected to the plasma formed in the discharge pipe 130 through the hydrocarbon supply pipe 151, Two. The hydrocarbon supply pipe 151 and the hydrocarbon supply pipe 150 may be formed in a suitable number within the hydrocarbon supply pipe 150 as in the case of the gas supply unit 140. The hydrocarbon supply pipe 151 may also be formed around the discharge pipe 130 As shown in FIG. For example, the hydrocarbon feed pipe 151 may be fed to the discharge pipe 130 so that the supplied hydrocarbon is rotated in the form of a spiral along the inner circumferential surface of the discharge pipe 130. 6 (a), the hydrocarbon feed pipe 151 is connected to the discharge pipe 130 so that the hydrocarbon discharged into the discharge pipe 130 is discharged along the inner circumferential surface of the discharge pipe 130 (that is, parallel to the inner circumferential surface) 130). The hydrocarbon feed pipe 151 and the discharge pipe 130 are connected to each other so that the direction of the hydrocarbon feed pipe 151 is parallel to the inner circumferential surface of the discharge pipe 130. [ In this configuration, the supplied hydrocarbon rotates in one direction within the discharge tube 130 to form a swirling shape. At this time, it is preferable that the rotating direction of the vortex coincides with the rotating direction of the mixed gas of steam and gas.

As another example, as shown in FIG. 6 (b), the hydrocarbon supply pipe 151 may be formed so as to face the center portion of the plasma formed inside the discharge tube 130. In this case, the hydrocarbon injected through the hydrocarbon feed line 151 is injected directly toward the center of the high-temperature plasma, so that the partial combustion and gasification of the hydrocarbon can be more easily performed.

As a carrier gas for supplying hydrocarbon into the discharge tube 130, carbon dioxide (CO 2) or a mixed gas of oxygen and gas may be used as in the case of the gas supply unit 140, and pure steam or oxygen It can be used as carrier gas. The syngas generated in the plasma hydrogen gas generator 110 contains a considerable amount of carbon dioxide in addition to hydrogen (H 2 ) and carbon monoxide. Therefore, when the carbon dioxide is separated from the syngas and recycled as a carrier gas for transferring the hydrocarbon fuel, the hydrocarbon can be effectively transferred to the plasma in the discharge tube 130 and also the environmental pollution due to the discharge of carbon dioxide into the air can be prevented It is effective.

According to another embodiment of the present invention, FIG. 7 exemplarily shows a configuration diagram of a plasma-using hydrogen gas production system 2 according to another embodiment of the present invention, A hydrogen gas generator 100 using plasma and a gas processor 200. The hydrogen gas generator 100 using plasma includes a plasma hydrogen gas generator 110 and the gas processor 200 A gas separator 210, a WGSR reactor 220, and a gas storage tank 230. In addition, the hydrogen gas production system 2 may further include a gas discharge portion 300 for easy discharge of hydrogen gas.

The gas separator 210 separates the mixed gas generated in the plasma hydrogen gas generator 110 and preferably separates impurities such as carbon powder and hydrogen gas from the mixed gas generated in the plasma hydrogen gas generator 110 into a filter or a cyclone .

The WGSR (Water-Gas Shift Reaction) reactor 220 concentrates the hydrogen gas separated in the gas separator 210. This causes the hydrogen gas to undergo hydrogen substitution reaction to concentrate the hydrogen gas to form hydrogen gas of high concentration and high purity. The hydrogen gas enriched in the reactor 220 may be discharged through the gas discharging unit 300 or may be stored in the gas storage tank 230 via the gas separator 210.

The gas storage tank 230 stores the hydrogen gas separated by the gas separator 210 and can appropriately adjust the supply amount when the hydrogen gas is supplied to the required field.

Claims (10)

A hydrogen gas generator using plasma; And
A hydrogen gas processing unit; Lt; / RTI >
Wherein the hydrogen gas generator includes a plasma hydrogen gas generator,
Wherein the plasma hydrogen gas generator comprises:
An electromagnetic wave supply unit for generating electromagnetic waves of a predetermined frequency;
A discharge tube in which a plasma is generated from the electromagnetic wave and a mixed gas of steam and gas supplied from the electromagnetic wave supply unit;
A fixing unit fixing the lower end of the discharge tube;
At least one gas supply unit for injecting a mixed gas of steam and gas into the discharge tube in the form of a spiral;
A hydrocarbon supply unit supplying a liquid, a gas, or both hydrocarbons to the plasma generated inside the discharge tube;
An ignition unit for supplying initial electrons for plasma generation to the inside of the discharge tube; And
And a gas discharge unit for discharging the synthesis gas synthesized from the reaction of the plasma and the hydrocarbon generated in the discharge tube,
Wherein the gas supply unit includes a supply pipe disposed at a lower end portion and an upper end portion of the discharge tube,
Wherein the supply pipe is inserted into the discharge tube through the fixing portion,
Wherein the supply pipe includes a first supply pipe for supplying steam into the discharge tube and a second supply pipe for supplying gas into the discharge pipe,
Wherein the supply pipe arranged at the upper end portion is arranged to be inclined downward with respect to the horizontal line L of the center of the discharge pipe and the supply pipe arranged at the lower end portion is arranged to be inclined upward,
Hydrogen Gas Production System Using Plasma.
delete delete The method according to claim 1,
Wherein a first supply pipe for supplying steam to the inside of the discharge tube and a second supply pipe for supplying gas into the discharge pipe are formed in the same number.
delete The method according to claim 1,
Wherein the supply pipe arranged at the upper end of the discharge tube and the supply pipe arranged at the lower end of the discharge tube are arranged parallel to each other or spaced apart from each other.
The method according to claim 1,
Wherein the gas supply unit supplies at least one of air, oxygen, nitrogen, and argon gas,
Wherein the gas supply unit supplies steam at 100 DEG C or more.
The method according to claim 1,
Wherein the hydrogen gas processing section includes a gas separator for separating impurities and hydrogen gas from the produced synthesis gas,
And a hydrogen gas storage tank for storing the separated hydrogen gas.
9. The method of claim 8,
Wherein the hydrogen gas separator separates carbon powder and hydrogen gas through a filter or separates carbon powder and hydrogen gas with a cyclone.
9. The method of claim 8,
The hydrogen gas processing unit may further comprise a WGSR reactor (Water-Gas Shift Reaction) for concentrating the hydrogen gas generated in the plasma hydrogen gas generator,
The WGSR reactor includes a hydrogen gas separator for separating hydrogen gas from the hydrogen gas,
Wherein the hydrogen gas concentrated in the WGSR reactor is further separated into hydrogen gas through a hydrogen gas separator and the separated hydrogen gas is stored in a storage tank.
KR1020150185268A 2015-12-23 2015-12-23 System for hydrogen production using plasma KR101752979B1 (en)

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WO2019203618A1 (en) * 2018-04-19 2019-10-24 한국화학연구원 Chemical energy production system using inductively coupled plasma reforming module
KR20190131308A (en) * 2018-05-16 2019-11-26 한국기계연구원 Plasma fuel reformer
KR20230114534A (en) * 2022-01-25 2023-08-01 엄환섭 Apparatus and method of hydrogen cyanide production from methane reformation by microwave nitrogen-plasma torch
WO2024096329A1 (en) * 2022-11-01 2024-05-10 케이퓨전테크놀로지 주식회사 Hydrogen generation system
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KR102699534B1 (en) * 2023-07-20 2024-08-26 이상천 Liquid oxygen type hydrogen production system
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KR102699533B1 (en) * 2023-06-28 2024-08-26 이상천 Hydrogen gas production device and method for producing hydrogen gas using nitrogen glow discharge
KR102703496B1 (en) * 2023-07-05 2024-09-04 이상천 Cryogenic Green Hydrogen Production System
KR102699534B1 (en) * 2023-07-20 2024-08-26 이상천 Liquid oxygen type hydrogen production system

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