KR102588840B1 - Apparatus and method of hydrogen production from reforming of plastic waste by microwave plasma torch - Google Patents

Abstract

The present invention is to mass-produce hydrogen by reforming waste plastic using an electromagnetic plasma torch. More specifically, by injecting water vapor or carbon dioxide into an electromagnetic plasma torch system, active particles that can be generated in the torch flame, such as oxygen, are produced. This is a device and method that produces hydrogen in large quantities by reforming waste plastic compounds in a high-temperature reforming chamber with high efficiency using atomic hydrogen oxide molecules, hydrogen atoms, and carbon monoxide molecules. The synthesis gas produced through reforming in the reforming chamber is mainly carbon monoxide and hydrogen. Carbon monoxide is converted to hydrogen through a water gas reaction, and the hydrogen is purified through the PSA (Pressure Swing Adsorption) process. Through this, waste plastic, which is the most harmful to the Earth's environment, is removed while producing hydrogen, the most environmentally friendly energy source.

Description

Apparatus and method of hydrogen production from reforming of plastic waste by microwave plasma torch}

The present invention relates to a device and method for mass producing hydrogen by reforming waste plastic using an electromagnetic plasma torch. More specifically, the present invention relates to an apparatus and method for mass producing hydrogen by reforming waste plastic using an electromagnetic plasma torch. More specifically, the present invention relates to oxygen atoms, hydrogen oxide molecules, hydrogen atoms, or carbon monoxide molecules that can be generated from an electromagnetic plasma torch. It relates to a device and method for producing hydrogen in large quantities by reforming waste plastic.

The Earth we live on has limited resources and space. In particular, household waste is causing enormous environmental problems on Earth. We humans produce more than 2 billion tons of household waste every year. This problem is expected to get worse. In particular, it is said that the indiscriminate use of various vinyl and plastics for reasons of convenience is polluting the land and sea, and at the same time, whales in the ocean are dying. Most waste plastics are made of polyethylene, but PVC (Polyvinyl Chloride) is also mixed among them. If these are burned indiscriminately, a disgusting substance called dioxin is released into the air, threatening our lives.

As shown in Figure 1, ethylene is a compound in which two hydrogen atoms are attached to each carbon atom in a double bond. Polyethylene is a complex compound in which numerous ethylene molecules are linked together. As shown in Figure 1, vinyl chloride is one in which one hydrogen atom in an ethylene molecule is replaced with a chlorine atom. PVC is a compound made up of numerous vinyl chloride molecules linked together. Vinyl chloride is known to be flammable, toxic, and carcinogenic. It is said that 13 million tons of vinyl chloride are synthesized every year. However, when these dangerous substances are combined and transformed into polyvinyl chloride, they are considered non-toxic and are found all around us, including in building materials, and these are returned as waste plastic, polluting the earth. We want to produce the most environmentally friendly hydrogen in large quantities by reforming waste plastic pollutants, which are causing the most severe damage to the Earth's environment, with an electromagnetic plasma torch. In other words, we want to remove waste plastic, which is a major pollutant in the global environment, and produce the hydrogen we desperately need from it.

The present invention is intended to meet the above-mentioned needs, and the purpose of the present invention is to produce hydrogen by reforming waste plastic at high temperature.

In order to achieve this purpose, the present invention first needs to compare the structure of polyethylene as shown in FIG. 1 with the structure of diesel in FIG. 2. The structure is similar, but polyethylene is a very long composite. When polyethylene melts and becomes liquid in a high-temperature reforming chamber and begins to disintegrate, it will resemble diesel molecules. Light oil (C ₁₂ H ₂₆ ) breaks down into smaller molecules at high temperatures (1200 degrees Celsius). For example, C ₁₂ H ₂₆ → C ₅ H ₁₁ + C ₇ H ₁₅ , C ₁₂ H ₂₆ → C ₄ H ₉ + C ₈ H ₁₇ , C ₁₂ H ₂₆ → C ₃ H ₇ + C ₉ H ₁₉ , and C It is divided into ₁₂ H ₂₆ → C ₂ H ₅ + C ₁₀ H ₂₁ , etc. in 1 millionth of a second. So what about the molecules created by the decomposition of diesel oil? For example, the molecule C ₁₀ H ₂₁ decomposes into C ₁₀ H ₂₁ → C ₂ H ₄ + C ₈ H ₁₇ in 1 billionth of a second. In this pattern, it decomposes very quickly into low molecules, eventually becoming a mixture of CH ₄ , C ₂ H ₆ , C ₂ H ₄ , C ₂ H ₂ , CH ₃ , H, etc. Just as light oil molecules are split into lower molecules in a high-temperature reforming chamber, it is obvious that polyethylene molecules will also be split into lower molecules in the high-temperature reforming chamber. By injecting water vapor or carbon dioxide necessary for reforming at high temperature through an electromagnetic plasma torch, hydrogen can be easily produced by reforming already low-molecular hydrocarbon compounds into active particles generated from the torch.

Generally, the flame temperature in an electromagnetic plasma torch is very high. The center is 6,500 degrees Celsius, but the temperature drops toward the end of the flame. Republic of Korea Patent Registration No. 10-0864695 describes the properties of water vapor electromagnetic plasma flame. Figure 3 shows the densities of oxygen (n _O ) hydrogen (n _H ) atoms and hydrogen oxide (OH) molecules (n _OH ) expressed in terms of temperature T _g at the flame area of a steam torch. Here, T _g means absolute temperature. It can be seen that the density of oxygen atoms in the flame area at an absolute temperature of 2000K is 10 ¹⁴ /cm ³ . When this amount of oxygen atoms attack low molecular hydrocarbon compounds, reforming can easily occur.

Republic of Korea Patent Registration No. 10-1166444 describes a carbon dioxide electromagnetic plasma torch. The generation of oxygen atoms in the electromagnetic plasma torch flame made of carbon dioxide can be observed in FIG. 4. At an absolute temperature of 2000K, the density of oxygen atoms (n _O ) is extremely high, at 5×10 ¹⁷ /cm ^{3 ,} and this density of oxygen atoms is formed in 1/100,000th of a second. Therefore, by injecting an electromagnetic plasma torch made using water vapor or carbon dioxide gas into a high-temperature reforming chamber, it is possible to very easily reform low-molecular polyethylene waste plastic and produce synthetic gas in large quantities.

So what happens to polyvinyl chloride? As shown in Figure 1, the structure of polyvinyl chloride is similar to that of light oil molecules, but only vinyl chloride molecules form a complex. This also liquefies at about 250 degrees Celsius, so when it is put into a high-temperature reforming chamber, it immediately vaporizes and converts into low molecules. It decomposes. In particular, it decomposes while emitting hydrogen chloride (HCl). For example, vinyl chloride molecules self-decompose into acetylene (C ₂ H ₂ ) and hydrogen chloride according to the reaction formula C ₂ H ₃ Cl → C ₂ H ₂ + HCl, and the decomposition constants are shown in Figure 5. Even at an absolute temperature of 1400K inside the reforming chamber, it decomposes within 1/1000th of a second. And acetylene is easily decomposed by the oxygen atom mentioned above.

As described above, the present invention provides a basis for improving the global environment by generating a large amount of active particles such as oxygen atoms, hydrogen atoms, hydrogen oxide molecules, and carbon monoxide molecules and using them to reform waste plastic.

The present invention removes waste plastic polluting the earth by using active particles such as oxygen atoms, hydrogen atoms, and hydrogen oxide molecules generated in large quantities.

The present invention produces hydrogen, the most environmentally friendly source of high-quality energy, by reforming waste plastic pollutants that are destroying the global environment.

The present invention presents conditions that can efficiently reform general hydrocarbon compounds, including biogas.

1 is a schematic diagram showing the chemical molecular formula of ethylene polyethylene vinyl chloride (vinyl chloride) and polyvinyl chloride according to an embodiment of the present invention.
Figure 2 is a schematic diagram showing the chemical molecular formula of diesel according to an embodiment of the present invention.
Figure 3 shows the density of oxygen atoms, hydrogen atoms, and hydrogen oxide molecules in a water vapor plasma torch flame according to an embodiment of the present invention as a function of the temperature T _g of the flame area.
Figure 4 shows the density of oxygen atoms (n _O ) and the time it takes to form the density (t _half ) in a carbon dioxide plasma torch flame according to an embodiment of the invention as a function of the temperature T _g of the flame area.
Figure 5 shows the decomposition constant of vinyl chloride decomposing itself in a high temperature reforming chamber according to an embodiment of the invention as a function of the temperature T of the reforming chamber.
Figure 6 is a block diagram of an apparatus and method for producing hydrogen by reforming waste plastic with an electromagnetic plasma torch according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, this is only an example and the present invention is not limited thereto.

In describing the present invention, if it is determined that a detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, the definition should be made based on the contents throughout this specification.

The technical idea of the present invention is determined by the claims, and the following examples are only a means to efficiently explain the technical idea of the present invention to those skilled in the art in the technical field to which the present invention pertains.

Figure 6 is a block diagram of an apparatus and method for producing hydrogen by reforming waste plastic with an electromagnetic plasma torch according to an embodiment of the present invention.

As shown, the device and method for producing hydrogen by reforming waste plastic with an electromagnetic plasma torch according to an embodiment of the present invention include a waste plastic preprocessor 10, a reforming chamber 20, an electromagnetic wave torch system 30, It consists of an oxygen supply unit (40), a heat exchanger (50), a water gas reaction (60), and a PSA (70).

The waste plastic preprocessor (10) crushes various incoming waste plastics or vinyl into small particles (pellets) and supplies them to the reforming chamber (20), or heats the waste plastic particles to 250 degrees Celsius and converts them into a liquid state into the reforming chamber (20). 20) is supplied.

The reforming chamber 20 maintains a high temperature environment so that the waste plastic materials supplied from the waste plastic preprocessor 10 are reformed by water vapor or carbon dioxide introduced from the electromagnetic torch system 30 while maintaining a high temperature. The inner wall of the reforming chamber 20 is made of a material that can withstand high temperatures for a long time (more than one month). For example, the inner surface can be coated with a heat-resistant ceramic material called HACT180 that can withstand up to 1800 degrees Celsius, and the next layer can be an insulating ceramic called INCT120. Graphite, which has a melting point of 3550 degrees Celsius, is also suitable as a heat resistor.

The electromagnetic torch system 30 generates a plasma torch flame using water vapor or carbon dioxide, and the torch flame in which a large amount of active particles such as oxygen atoms, hydrogen atoms, hydrogen oxide (OH) molecules, and carbon monoxide molecules are generated is converted into a reforming chamber ( 20) is supplied. The electromagnetic wave torch system 30 is composed of a magnetron, a power supply, a circulator, a directional coupler, a stub tuner, a waveguide, and a discharge tube. The electromagnetic waves generated from the magnetron generate a torch flame in the discharge tube, producing a large amount of active particles. It produces heat and also transfers the high-temperature heat energy contained in the torch to the reforming chamber (20).

The electromagnetic torch system 30 uses expensive electric energy to generate a torch flame and provides it to the reforming chamber 20. Therefore, it may be economically difficult to provide all the energy required for reforming with an electromagnetic torch. In contrast, it is possible to burn some of the waste plastic material, which contains a lot of energy, and use it to provide some of the reformation energy. In this context, the oxygen supply unit 40 supplies oxygen to the reforming chamber 20 to partially oxidize the waste plastic material and procure some of the energy required for reforming.

Waste plastic materials are reformed into synthetic gas in the reforming chamber 20. When the synthetic gas, which is mainly a mixture of hydrogen and carbon monoxide, is discharged from the reforming chamber 20, the temperature generally approaches 1,000 degrees Celsius. However, since the following processes are performed at low temperatures, the temperature of the synthesis gas must be cooled through the heat exchanger (50). Most of the waste plastic is polyethylene, but a small amount of hydrogen chloride generated when some polyvinyl chloride is decomposed may be included in the synthesis gas. Therefore, hydrogen chloride is removed during the process of passing through the heat exchanger 50. In the process of cooling the synthesis gas, high-temperature water vapor is generated, and this water vapor is used to generate a water vapor torch in the electromagnetic wave torch system 30.

Synthesis gas that has been sufficiently cooled in the heat exchanger (50) goes through the water gas reaction (60), where carbon monoxide is converted to carbon dioxide and converted to hydrogen. The water gas reaction (60) also uses a portion of water vapor. The water gas reaction is carried out below 200 degrees Celsius. Synthesis gas that has passed the water gas reaction (60) is a mixed gas of hydrogen and carbon dioxide. This synthesis gas is finally separated into carbon dioxide and hydrogen through a purification process called PSA (70). Some of the carbon dioxide generated here is used to generate a carbon dioxide plasma torch in the electromagnetic wave torch system 30. PSA (Pressure Swing Adsorption) mentioned here refers to the gas purification process.

<Example 1>

As an example, polyethylene is modified with water vapor plasma. Polyethylene, the main component of plastic, is a complex of numerous ethylene molecules bonded together. So, for convenience of analysis, we will assume that it is a compound with N ethylene molecules attached. So, the chemical molecular formula of this hypothetical molecule is (C ₂ H ₄ ) _N. The enthalpy of this molecule is assumed to be -E kJ/mole. When reforming this compound with a steam torch, the comprehensive chemical reaction is

(C ₂ H ₄ ) _N + 2NH ₂ O → 2NCO + 4NH ₂

The enthalpy change of this reaction is DH = (262.6N+E) kJ/mole, which is an endothermic reaction and the molecular weight of this compound is 28Ng/mole. In the above chemical reaction equation, N represents an integer number and does not represent a nitrogen atom. Here, the enthalpies of water vapor and carbon monoxide were calculated to be -241.8kJ/mole and -110.5kJ/mole, respectively. Since carbon monoxide changes into hydrogen through the water gas reaction (60) CO + H ₂ O → CO ₂ + H ₂ , 6N moles of hydrogen are generated by reforming 1 mole of the hypothetical compound.

We assume a production of 300 cubic meters of hydrogen per hour. Then, 2232/N mol of the virtual compound per hour is introduced into the reforming chamber 20. This corresponds to 0.62/N mole/s. Therefore, the energy required for reforming is (0.62/N)(262.6N+E)= (162.8+0.62E/N) kW. A reforming chamber 20 of this size has an internal capacity of about 1.8 cubic meters and the energy lost in this reforming process is about 140 kW. Most of the energy loss is the energy contained in the synthesis gas, and some disappears through conduction. So, the energy required for the reforming process is (302.8+0.62E/N)kW.

The energy of this hypothetical compound is calculated from the oxidation reaction (C ₂ H ₄ ) _N + 3NO ₂ → 2NCO ₂ + 2NH ₂ O, and the enthalpy change of this oxidation reaction is DH = -(1270.6NE)kJ/mole. So, since 0.62/N mole/s of waste polyethylene material is needed per second, the energy contained in waste polyethylene is (1270.6NE)(0.62/N)= (787.8-0.62E/N)kW. Therefore, the total energy being input into the reforming chamber 20 is (302.8+0.62E/N)+(787.8-0.62E/N)=1090.6kW. What is noteworthy here is that the total energy input is independent of the number N and the enthalpy of the hypothetical compound -EkJ/mole. In other words, it depends only on the energy of carbon and hydrogen atoms. The hydrogen energy produced is 300 rubes when calculated from the enthalpy of water generated by the reaction of H ₂ + (1/2)O ₂ → H ₂ O -285.8kJ/mole (High Value: This value is generally adopted as gasifier efficiency). The hydrogen energy of is 1063.2 kW. So the reformation energy efficiency is η = 1063.2/1090.6 = 0.97. The reason why reforming energy efficiency is so high is because high-temperature water vapor generated in the heat exchanger 50 is injected into the electromagnetic wave torch system 30. However, since approximately 60kW of energy is required from the PSA (70) to produce 300 cubic meters of hydrogen per hour, the total energy input is 1150.6kWrk, resulting in an overall energy efficiency of η = 1063.2/1150.6 = 0.92. The amount of waste polyethylene input per hour is (28Ng/mole)(2232mole/N)=62.5kg, which is also unrelated to the number N.

<Example 2>

In this example, polyethylene is reformed with carbon dioxide plasma. At this time, when modifying the polyethylene hypothetical compound with a carbon dioxide torch, the comprehensive chemical reaction is

(C ₂ H ₄ ) _N + 2NCO ₂ → 4NCO + 2NH ₂

And the enthalpy change of this reaction is DH = (345N+E) kJ/mole, which is an endothermic reaction. Here, the enthalpy of carbon dioxide was calculated to be -393.5kJ/mole. In this reformation, 6N moles of hydrogen are generated per mole of the hypothetical compound. In this case, the reforming energy required to produce 300 cubic meters of hydrogen per hour is (0.62/N)(345N+E)= (214+0.62E/N) kW. Here, the energy loss of 140 kW in the reforming chamber 20 is added. The total energy being input into the reforming chamber 20 is (354+0.62E/N)+(787.8-0.62E/N)=1141.7kW. Adding 60 kW of power used outside the reforming chamber 20 to this, the total energy input is 1201.7 kW and the energy efficiency is η = 1063.2/1201.7 = 0.88. Carbon dioxide torches have slightly lower energy efficiency than steam torches. Nevertheless, it is easier to generate a carbon dioxide torch than a water vapor torch, and when comparing Figures 3 and 4, the carbon dioxide torch has the advantage that oxygen atom generation is much higher than that of a water vapor torch.

<Example 3>

In this example, polyvinyl chloride will be modified using a steam plasma torch. In this case, the molecular formula of the hypothetical compound is (C ₂ H ₃ Cl) _N. When reforming this compound with a steam torch, the comprehensive chemical reaction is

(C ₂ H ₃ Cl) _N + 2NH ₂ O → 2NCO + 3NH ₂ + NHCl

The enthalpy change of this reaction is DH = (170.3N+E) kJ/mole, which is an endothermic reaction and the molecular weight of this compound is 62.5Ng/mole. In this case, the hydrogen generated per mole of polyvinyl chloride hypothetical compound is 5N mole. The hypothetical number of moles of polyvinyl chloride required to produce 300 cubic meters of hydrogen per hour is 2678.6 mol, which is equivalent to 0.74/N mole/s. So the reforming energy required is (126.7+E/N)kW. When using polyvinyl chloride, the internal volume of the reforming chamber 20 must be increased by 20%, so the energy loss through reforming also increases by 20%, reaching 168 kW. The energy to be input into the reforming chamber 20 is (294.7+E/N)kW.

The energy of this hypothetical polyvinyl chloride compound is calculated from the oxidation reaction (C ₂ H ₃ Cl) _N + 3NO ₂ → 2NCO ₂ + NH ₂ O + NHClO, and the enthalpy change of this oxidation reaction is DH = -(1105.6NE)kJ /mole. Here, the enthalpy of hypochlorous acid (HClO) was calculated as -76.8kJ/mole. The energy input into polyvinyl chloride is (818-E/N)kW. Therefore, the energy input into the reforming chamber 20 containing the reforming material is 1113 kW. Adding 60 kW of energy required outside the reforming chamber 20 to this, the total is 1173 kW. Therefore, the energy efficiency is η = 1063.2/1173 = 0.91. The polyvinyl chloride required to produce 300 cubic meters of hydrogen per hour is 167 kg. In actual situations, Example 1 would be realistic because most of the waste plastic is polyethylene and some polyvinyl chloride is introduced. However, even if a small amount of polyvinyl chloride is mixed in the waste plastic, the generated hydrogen chloride must be removed from the heat exchanger (50).

Although the present invention has been described in detail through representative embodiments above, those skilled in the art will recognize that various modifications to the above-described embodiments are possible without departing from the scope of the present invention. You will understand.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims described later but also by equivalents to the claims.

PSA (Pressure Swing Adsorption): Tablets
PVC (Polyvinyl Chloride): Polyvinyl chloride
Vinyl Chloride: Vinyl Chloride
Ethylene: Ethylene
Polyethylene: polyethylene
C ₁₂ H ₂₆ : Diesel
C ₁₂ H ₂₆ → C ₅ H ₁₁ + C ₇ H ₁₅ , C ₁₂ H ₂₆ → C ₄ H ₉ + C ₈ H ₁₇ , C ₁₂ H ₂₆ → C ₃ H ₇ + C ₉ H ₁₉ , C ₁₂ H ₂₆ → C ₂ H ₅ + C ₁₀ H ₂₁ : Reaction equations for decomposition of diesel fuel
C ₁₀ H ₂₁ → C ₂ H ₄ + C ₈ H ₁₇ : Reaction formula for decomposition of compound C ₁₀ H ₂₁
CH ₄ : methane
C ₂ H ₆ : Ethane
C ₂ H ₄ : Ethylene
C ₂ H ₂ : Acetylene
CH ₃ : ethyl
H: hydrogen atom
n _O : oxygen atom density
n _H : hydrogen atom density
n _OH : hydrogen oxide molecular density
OH: hydrogen oxide
T _g : Plasma torch flame temperature
K: absolute temperature
HCl: hydrogen chloride
C ₂ H ₃ Cl: Vinyl chloride
Diesel: Diesel
t _half : oxygen atom density formation time
T: Temperature inside reforming chamber
Pellets: particles
HACT180: Heat-resistant ceramic
INCT120: Ceramic insulation
(C ₂ H ₄ ) _N : Ethylene molecule complex
N: Number of ethylene molecules in the ethylene molecule complex
-E: enthalpy of complex
H ₂ : Hydrogen molecule
DH: enthalpy change
CO: carbon monoxide
H ₂ O: water
_CO2 : carbon dioxide
O ₂ : Oxygen molecule
η : Energy efficiency
(C ₂ H ₃ Cl) _N : Vinyl chloride molecule complex
HClO: hypochlorous acid
k : Vinyl chloride molecule decomposition constant

Claims (8)

In producing hydrogen by reforming waste plastic with an electromagnetic plasma torch, a waste plastic preprocessor that crushes waste plastic or vinyl into small particles and supplies them to the reforming chamber;
a reforming chamber that maintains a high temperature environment suitable for reforming the waste plastic material supplied from the plastic preprocessor into water vapor or carbon dioxide;
An electromagnetic torch system that generates a plasma torch flame using water vapor or carbon dioxide and supplies the torch flame containing a large amount of active particles to the reforming chamber to reform the particulate waste plastic material;
an oxygen supply unit that supplies oxygen necessary for partial combustion of waste plastic material to the reforming chamber to which the plasma torch flame is supplied to provide a portion of reforming energy;
A heat exchanger that cools the reformed synthesis gas discharged from the reforming chamber at high temperature to a low temperature;
A water gas reaction device that converts carbon monoxide mixed in the cooled synthesis gas into carbon dioxide and hydrogen; and
A device that produces hydrogen by reforming waste plastic with an electromagnetic plasma torch, including a PSA purification device that finally separates hydrogen and carbon dioxide mixed in the synthesis gas through the water gas reaction process.
According to paragraph 1,
The suitable high-temperature environment is a device that produces hydrogen by reforming waste plastic with an electromagnetic plasma torch such that the internal temperature of the reforming chamber is maintained at more than 1,200 degrees Celsius.
According to paragraph 1,
The active particles refer to oxygen atoms, hydrogen atoms, and hydrogen oxide molecules in the case of a steam torch flame, and oxygen atoms and carbon monoxide molecules in the case of a carbon dioxide torch flame, and are characterized in that they produce hydrogen by reforming waste plastic with an electromagnetic plasma torch. Device
According to paragraph 1,
The electromagnetic wave torch system is a system that supplies active particles and energy necessary for the reforming to the reforming chamber through a torch flame, and includes a magnetron, a power supply, a circulator, a directional coupler, a stub tuner, a waveguide, and a discharge tube. A device that produces hydrogen by reforming waste plastic with an electromagnetic plasma torch, and is characterized in that electromagnetic waves generated from the magnetron generate a torch flame in the discharge tube.
According to paragraph 1,
A device for producing hydrogen by reforming waste plastic with an electromagnetic plasma torch, characterized in that the cooling to the low temperature is cooling to 200 degrees Celsius or less.
A process of crushing waste plastic or vinyl into small particles and injecting them into a reforming chamber;
The process of injecting water vapor or carbon dioxide molecules into an electromagnetic torch system;
A process of generating a torch flame in a discharge tube in the electromagnetic wave torch system;
A process of generating a large amount of active particles in the torch flame;
A process of producing synthesis gas by reforming the particle-like waste plastic material using the large amount of active particles;
A process of supplying oxygen necessary for partial combustion of waste plastic material to provide a portion of reforming energy to the reforming chamber to which a plasma torch flame is supplied;
A process of cooling the high temperature synthesis gas;
A process of converting carbon monoxide mixed in the synthesis gas into carbon dioxide and hydrogen; and
A method of producing hydrogen by reforming waste plastic using an electromagnetic plasma torch, which ultimately involves the process of separating and purifying hydrogen and carbon dioxide.
According to clause 6,
The large amount of active particles refers to oxygen atoms, hydrogen atoms, and hydrogen oxide molecules in the case of a steam torch flame, and oxygen atoms and carbon monoxide molecules in the case of a carbon dioxide torch flame. A method of producing hydrogen by reforming waste plastic with an electromagnetic plasma torch.
According to clause 6,
A method of producing hydrogen by reforming waste plastic with an electromagnetic plasma torch, which consists of collecting high-temperature heat energy to increase overall system energy efficiency in the process of cooling synthesis gas.