KR102206106B1 - Mixing pyrolysis apparatus for biomass and polymer waste and producing method for pyrolysis oil using thereof - Google Patents

Abstract

There is provided a mixed pyrolysis apparatus of biomass and polymer waste capable of producing pyrolysis oil by pyrolysis reaction of biomass and polymer waste, respectively. The mixed pyrolysis device is a high-quality product while increasing the pyrolysis reaction efficiency of biomass and polymer waste by rapidly pyrolysis reaction of biomass and polymer waste through each reactor at the optimum pyrolysis reaction temperature, filtering and reforming, collecting, and condensing. It can increase the production yield for pyrolysis oil.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The mixing pyrolysis apparatus for biomass and polymer waste and producing method for pyrolysis oil using the same

The present invention relates to a pyrolysis apparatus, and in particular, to a mixture pyrolysis apparatus of biomass and polymer waste capable of pyrolysis reaction of biomass and polymer waste at an optimum rapid pyrolysis reaction temperature, and a method of manufacturing pyrolysis oil using the same.

Recently, as the excellence of biomass fuel as a new renewable energy has been newly recognized, research on energy conversion technology for biomass is actively progressing in countries around the world, and accordingly, technology development is currently being made at a rapid pace.

Among these technologies for energy conversion of biomass, there is a technology for producing pyrolysis oil through rapid pyrolysis as a technology attracting attention recently. Pyrolysis oil is oil produced from woody and herbaceous biomass, and can be a raw material for chemical products such as petroleum fuel or crude oil, which is a raw material for petrochemical products, and is transported with higher energy density compared to solid raw materials. And storage costs are low, and since it is in a liquid state, it is easy to handle, and thus it has an advantage of high utility value as a fuel for heating and power generation.

In order to produce pyrolysis oil from biomass, fast pyrolysis technology is mainly used. Among them, a rapid pyrolysis process has been developed to increase the yield of pyrolysis oil as a liquid product by shortening the reactor residence time of condensed gas.

On the other hand, since biomass has a high oxygen content of itself, the pyrolysis oil produced from biomass through the rapid pyrolysis process shows a high oxygen content, which causes chemical instability and low calorific value of the oil. Accordingly, a technology has been developed to reduce the oxygen content in the pyrolysis oil and improve the calorific value by performing a rapid pyrolysis process by mixing a material having a high carbon or hydrogen content, such as a polymer material with biomass.

However, conventionally, a rapid pyrolysis process is performed by being supplied to a pyrolysis reactor in a state in which biomass and a polymer material in a sample state are mixed. At this time, since the optimal pyrolysis reaction temperature of biomass and polymer material is different, the problem of generating coking or wax in the pyrolysis reactor occurs in the conventional rapid pyrolysis process, and thus the quality and production of bio-oil. The yield is decreasing.

An object of the present invention is to provide a mixed pyrolysis device capable of increasing the quality and yield of pyrolysis oil by pyrolysis reaction of biomass and polymer waste, and a method of manufacturing pyrolysis oil using the same.

A mixed pyrolysis apparatus according to an embodiment of the present invention includes: a first reactor for rapidly pyrolysis reaction of the biomass while transferring the supplied biomass to the other side; A second reactor for rapid pyrolysis reaction of the polymer waste while transferring the supplied polymer waste to the other side; A filtration module for filtering the hot gas discharged from the other gas outlets of the first and second reactors; And a condensation module for condensing the hot gas passing through the filtration module to produce pyrolysis oil.

Here, a screw is provided inside each of the first and second reactors to rotate in one direction to transfer the biomass and polymer waste to the other side.

In the method for producing pyrolysis oil using a mixed pyrolysis device according to an embodiment of the present invention, the biomass supplied through the inlet on one side of the first reactor is transferred to the other side by rotating the screw inside, and the first high temperature gas Discharging; Discharging the second high temperature gas by rapid pyrolysis reaction while rotating the screw inside the polymer waste supplied through the inlet of the second reactor to the other side; Filtering each of the first high-temperature gas and the second high-temperature gas, and reforming the filtered gas by catalytic reaction; And condensing the filtered and reformed gas to produce pyrolysis oil.

Here, the step of discharging the first high-temperature gas and the step of discharging the second high-temperature gas are performed together in parallel.

According to the mixed pyrolysis apparatus of the present invention and the pyrolysis oil production method using the same, the pyrolysis reaction efficiency of biomass and polymer waste is improved by rapidly pyrolysis reaction at the optimum pyrolysis reaction temperature through each reactor. You can increase it.

In addition, by individually or integrally filtering high-temperature gas due to pyrolysis of biomass and high-temperature gas due to pyrolysis of polymer waste at least twice, the efficiency of removing solid particles, metal particles, and fine particles from the gas generated through pyrolysis reaction High quality pyrolysis oil can be manufactured.

In addition, by recovering the pyrolysis oil through at least two condensation and one electrical dust collection of the filtered and reformed hot gas, it is possible to increase the production yield of high-quality pyrolysis oil.

1 is a view showing the configuration of a mixed pyrolysis apparatus according to an embodiment of the present invention.
2 is a view showing the configuration of the biomass pyrolysis reactor of FIG. 1.
3 is a flowchart illustrating a method of manufacturing pyrolysis oil using a mixed pyrolysis device according to an embodiment of the present invention.
FIG. 4 is a diagram specifically showing the biomass pyrolysis reaction step of FIG. 3.
5 is a view showing in detail the gas condensation and pyrolysis oil manufacturing step of FIG.

Hereinafter, with reference to the accompanying drawings with respect to an embodiment of the present invention will be described the configuration and operation.

It should be noted that the same components among the drawings are denoted by the same reference numerals and reference numerals as much as possible even if they are indicated on different drawings. In the following description of the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless specifically stated to the contrary.

In addition, terms or words used in the present specification and claims should not be interpreted in a conventional and dictionary meaning, and that the inventors can appropriately define the concept of terms in order to explain their own invention in the best way. Based on the principle, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only preferred embodiments of the present invention, and do not represent all the technical spirit of the present invention, and various equivalents that can replace them at the time of application There may be modifications and examples, and the scope of the present invention is not limited to the following embodiments.

1 is a diagram showing the configuration of a mixed pyrolysis apparatus according to an embodiment of the present invention, and FIG. 2 is a view showing the configuration of the biomass pyrolysis reactor of FIG. 1.

Referring to FIG. 1, the mixed pyrolysis apparatus 100 of the present embodiment may include a first reactor 110, a second reactor 120, a filtration module 131, 132, 133, and a condensation module 136. .

The first reactor 110 and the second reactor 120 may rapidly pyrolyze a sample supplied to each of them to obtain a gaseous gas and a solid by-product. The first reactor 110 rapid pyrolysis reaction of biomass supplied from the outside, for example, biomass 141 including forest products, agricultural products, animal materials, wood chips, etc. You can get bio-char. The second reactor 120 rapidly pyrolyzes the polymer wastes 151 including waste tires, waste plastics, waste resins, etc., supplied from the outside, so that the gaseous second high temperature gas and the solid polymer (polymer-char) can be obtained. The first reactor 110 and the second reactor 120 may be disposed to face each other on a horizontal line, and may have substantially the same configuration. Accordingly, the configuration of the first reactor 110 will be described in detail below for convenience of description, but this may be applied to the second reactor 120 in the same manner.

1 and 2, the first reactor 110 includes a body 101, a screw 102 inserted into the body 101, and at least one heating member 106a surrounding the outer surface of the body 101. , 106b), a motor 107 for rotating the screw 102, a heater 108 for supplying heat to the heating members 106a, 106b, and controlling the operation of the motor 107 and the heater 108 It may include a control unit 109.

The body 101 of the first reactor 110 may be formed in a hollow shape having a predetermined space therein and may be horizontally disposed. A sample injection port 103 may be configured at one end of the body 101, and a gas discharge port 104 and a by-product discharge port 105 may be configured at the other end thereof to face each other.

The screw 102 may be configured in a shaft shape and inserted into the body 101. The screw 102 may be rotated in one direction inside the body 101 according to the rotation of the motor 107 connected to one side. When a sample, that is, biomass 141 is provided through the sample inlet 103 of the body 101 of the screw 102, it is rotated in one direction, and accordingly, the biomass 141 is It can be transferred to the other side.

On the other hand, inside the body 101 may be provided with a filler (not shown) for assisting the rapid pyrolysis reaction of the biomass 141, the screw 102 is a biomass provided through the inlet 103 through rotation ( While stirring 141) with the filling, it can be transferred from one side of the body 101 to the other side.

At least one heating member (106a, 106b) is disposed to surround the outer circumferential surface of the body (101), it is possible to heat the outer circumferential surface of the body (101) by the heat provided from the heater (108) to a predetermined temperature. Accordingly, the biomass 141 transferred from the inside of the body 101 by the screw 102 causes a rapid pyrolysis reaction inside the body 101, and accordingly, the high-temperature first gas and bio-char as a by-product ) Can be created.

The motor 107 is connected to one end of the screw 102 and may rotate the screw 102 in one direction at a predetermined speed under the control of the controller 109.

The heater 108, that is, the heater is external, for example, heating members 106a, 106b surrounding the outer circumferential surface of the body 101 from the by-product combustor 137 to be described later and the screw 102 inserted into the body 101, respectively By supplying heat of a predetermined temperature to the body 101, a rapid pyrolysis reaction may occur in the biomass 141 transferred inside the body 101. The heater 108 may control the temperature of heat supplied to the heating members 106a and 106b and the screw 102 under the control of the controller 109.

The control unit 109 may control the operation of the motor 107 and the heater 108 so that the rapid pyrolysis reaction of the biomass 141 within the body 101 is smoothly performed. The control unit 109 may include a motor controller 109b that controls the rotational speed of the motor 107 and a temperature controller 109a that controls the temperature of heat generated from the heater 108.

The first high temperature gas generated through the rapid pyrolysis process of the biomass 141 by the first reactor 110 may be discharged to the outside through a gas outlet 104 configured at the other end of the body 101. In addition, the biocar generated through the rapid pyrolysis process of the biomass 141 may be discharged to the outside through the by-product outlet 105 configured at the other end of the body 101. Here, the gas outlet 104 and the by-product outlet 105 may be configured to face each other on the other side of the body 101.

As described above, the first reactor 110 of the present embodiment rotates the screw 102 provided in the hollow body 101 in one direction at a predetermined speed, thereby rotating the biomass 141 inside the body 101. It can be transported in one direction. And, by heating the outer circumferential surface of the body 101 and the screw 102 to a predetermined temperature through the heater 108, the biomass 141 in the body 101 causes a rapid pyrolysis reaction, and the result, that is, the first It is possible to obtain hot gas and bio tea.

At this time, the first reactor 110 of this embodiment controls the residence time and reaction time of the biomass in the reactor through the rotational speed control of the screw 102, thereby coking generated in the rapid pyrolysis process of the biomass 141. ) And wax (wax) can be prevented to increase the efficiency of the rapid pyrolysis reaction. In addition, the first reactor 110 heats the outer circumferential surface of the body 101 and the screw 102 together, so that the biomass 141 can cause a pyrolysis reaction at an optimum temperature, for example, 450 to 550°C. .

Meanwhile, the second reactor 120 of FIG. 1 may also have substantially the same configuration as the first reactor 110 described above. However, the second reactor 120 may control the rotational speed of the screw unlike the first reactor 110 in order to increase the efficiency of the rapid pyrolysis process of the polymer waste 151 supplied from the outside, and also the second reactor ( It is possible to control so that the body and the screw of 120) are heated together at 400 to 450°C so that the polymer waste 151 can be rapidly pyrolyzed at the optimum pyrolysis reaction temperature.

In addition, it is preferable that the first reactor 110 and the second reactor 120 be disposed so that the gas outlets 104 of each reactor face each other for optimal arrangement of the filtration modules 131, 132, 133, etc., which will be described later. I can.

Referring back to FIG. 1, the mixed pyrolysis apparatus 100 of the present embodiment may further include a first supplier 140, a second supplier 150, and a by-product combustor 137.

The first supplier 140 may supply the biomass 141 provided therein to the inlet 103 of the first reactor 110. The second feeder 150 may supply the polymer waste 151 provided therein to the inlet 103 of the second reactor 120.

The by-product combustor 137 is disposed adjacent to the other end by-product outlet 105 of the first reactor 110 and the other end by-product outlet 105 of the second reactor 120, and is a rapid pyrolysis reaction by-product discharged through each by-product outlet. In other words, it can burn bio and polymer cars. The by-product combustor 137 may provide a heat source generated by combustion of a by-product, that is, a high-temperature combustion exhaust gas as a heat source of the heater 108 of each reactor.

In addition, the mixed pyrolysis apparatus 100 maintains an oxygen-free state inside the first reactor 110 and the second reactor 120, that is, the inside of the body 101 of each reactor, and the high-temperature gas generated in each reactor is supplied to the first supplier ( 140) and a gas supply unit (not shown) for supplying a carrier gas for preventing reverse flow to the second supply unit 150 may be further included. The gas supplier supplies nitrogen (N) to the inside of the first supplier 140 and the second supplier 150, so that samples, that is, the biomass 141 and the second supplier 150, respectively, Along with the polymer waste 151, nitrogen may be supplied into each reactor.

The filtering modules 131, 132, and 133 include a first filter 131 and a second filter 132 disposed adjacent to each of the gas outlets 104 of each reactor 110, 120, and a catalyst 134, which will be described later. It may include a third filter 133 disposed at the rear end of 135).

The first filter 131 may filter the first high temperature gas discharged through the gas outlet 104 of the first reactor 110. The first filter 131 may collect and remove solid particles, such as biocar and alkali metal particles, contained in the first high temperature gas. In addition, the second filter 132 may collect and remove solid particles, that is, polymer particles and alkali metal particles, in the second high temperature gas discharged through the gas outlet 104 of the second reactor 120.

The first filter 131 and the second filter 132 may be composed of a cyclone dust collector, and each filter may have a structure in which two cyclone dust collectors are arranged in series in order to increase the filtering performance of solid particles. . In addition, in order to prevent condensation of the condensed gas generated in the pyrolysis reactor in the first filter 131 and the second filter 132, an electric heater (not shown) may be attached to the outside of each filter to maintain the filter at high temperature. .

The third filter 133 may filter a combined gas, for example, a combined gas of the first high temperature gas and the second high temperature gas. The third filter 133 is commonly connected to the rear end of each of the first catalyst 134 and the second catalyst 135 and passes through the first catalyst 134 and the second catalyst 135, respectively, and The second high temperature gas can be collected and provided. The third filter 133 may collect and remove fine particles in the collecting gas.

As described above, the filtration modules 131, 132, 133 of the present embodiment are configured to include a plurality of filters, that is, the first filter 131 to the third filter 133, and the first filter 131 and the second filter After first filtering the solid particles in the hot gas discharged from each reactor through (132), the fine particles may be secondarily filtered from the collected gas obtained by collecting these hot gases. Accordingly, by removing solid particles and fine particles contained in the hot gas before the condensation process of the condensation module 136 to be described later, the condensation efficiency of the hot gas and the quality of the pyrolysis oil can be improved.

Meanwhile, as another example of the present embodiment, the third filter 133 may be arranged to be commonly connected to the rear ends of the first filter 131 and the second filter 132.

The catalyst may include a first catalyst 134 for reforming the first high temperature gas and a second catalyst 135 for reforming the second high temperature gas. The first catalyst 134 is disposed at the rear end of the first filter 131 and may be reformed by reacting the first high temperature gas that has passed through the first filter 131 under atmospheric pressure. The second catalyst 135 is disposed at the rear end of the second filter 132 and may be reformed by reacting the second high-temperature gas that has passed through the second filter 132 under atmospheric pressure. According to the catalytic reaction of the first catalyst 134 and the second catalyst 135, the moisture content in each high-temperature gas may decrease.

The condensation module 136 may condense the high-temperature gas that has passed through the filtration modules 131, 132, 133 and the catalyst and recover it as a liquid oil to produce pyrolysis oil. The condensation module 136 may include a first condenser 136a, a second condenser 136b, and an electric precipitator 136c.

The first condenser 136a may produce pyrolysis oil by condensing the gas that has passed through the third filter 133 of the filtration modules 131, 132, 133. The second condenser 136b may produce pyrolysis oil by condensing the gas that has passed through the first condenser 136a, that is, the gas that has not been condensed in the first condenser 136a.

Here, the first condenser 136a and the second condenser 136b may have a shell and tube shape, and condensation of the hot gas by indirect contact with the low temperature fluid inside and the hot gas supplied from the outside. Through the pyrolysis oil can be recovered. The first condenser 136a and the second condenser 136b may be connected in series, thereby increasing the residence time in the condenser of the high-temperature gas provided from the third filter 133 to increase condensation efficiency.

In addition, the internal temperature of the first condenser 136a and the second condenser 136b can be individually controlled, and accordingly, the first high-temperature gas and polymer waste 151 by thermal decomposition of the biomass 141 in the high-temperature gas. It is also possible to recover the pyrolysis oil by separating and condensing the second high temperature gas by pyrolysis of.

The electrostatic precipitator 136c may recover additional pyrolysis oil from the pyrolysis oil droplets that have passed through the second condenser 136b, that is, the pyrolysis oil droplets not condensed in the second condenser 136b. The electrostatic precipitator 136c generates a high voltage through corona discharge according to the voltage applied from the outside and collects the fine pyrolysis oil droplets contained in the pyrolysis oil droplets that have passed through the second condenser 136b, thereby collecting a liquid component, that is, pyrolysis oil. Can be recovered.

The electric precipitator 136c may be configured such that a pipe (not shown) is disposed in the center of the cylinder, and a plurality of star-shaped discharge needles (not shown) are attached along the pipe at regular intervals along the pipe. In such an electric precipitator 136c, the gas provided from the second condenser 136b is raised along a cylindrical pipe, and at this time, corona discharge is generated from the discharge needle in the center, so that the oil particles in the gas are electrostatically coagulated. 136c) can be attached to the inner wall. Subsequently, the oil adhering to the inner wall may flow downward along the inner wall, thereby being recovered as pyrolysis oil. Here, the electric dust collector 136c may further include an electric heater (not shown) attached to the outer wall, and the inner wall is heated by the electric heater to reduce the viscosity of the oil attached to the wall, thereby recovering pyrolysis oil. You can increase the efficiency.

In addition, the mixed pyrolysis apparatus 100 of the present embodiment may further include a blower 138. The blower 138 supplies the gas that has passed through the electrostatic precipitator 136c, that is, the non-condensed gas back to the first reactor 110 and the second reactor 120, so that the non-condensed gas is recycled in the manufacturing process of pyrolysis oil. Make it possible.

As described above, the mixed pyrolysis apparatus 100 for producing pyrolysis oil by mixing and pyrolysis of the biomass 141 and the polymer waste 151 according to the present embodiment has been described. The mixed pyrolysis apparatus 100 of the present invention includes a first reactor 110 that generates a rapid pyrolysis reaction while transferring the biomass 141 from the inside, and a first reactor 110 that generates a rapid pyrolysis reaction while transferring the polymer waste 151 from the inside. By providing the two reactor 120, each of the biomass 141 and the polymer waste 151 can be rapidly pyrolyzed at an optimum pyrolysis reaction temperature. In addition, the mixed pyrolysis apparatus 100 of the present invention primarily filters the high-temperature gas by the pyrolysis of the biomass 141 and the high-temperature gas by the polymer waste 151, respectively, and catalyzes the filtered gas, respectively, By secondary filtering the collected gas obtained by collecting each of these gases again, the removal efficiency of solid particles and fine particles in the high-temperature gas generated by rapid pyrolysis can be increased, and the moisture content can be decreased. Accordingly, the mixed pyrolysis apparatus 100 of the present invention can improve the production yield and quality of high-quality pyrolysis oil while increasing the efficiency of the rapid pyrolysis process of the biomass 141 and the polymer waste 151.

3 is a flow chart showing a method of manufacturing pyrolysis oil using a mixed pyrolysis device according to an embodiment of the present invention, FIG. 4 is a view specifically showing the biomass pyrolysis reaction step of FIG. 3, and FIG. 5 is a pyrolysis of FIG. It is a diagram specifically showing the oil production step.

Hereinafter, a method of manufacturing pyrolysis oil using the mixed pyrolysis apparatus of the present invention will be described in detail with reference to FIGS. 3 to 5. For convenience of explanation, a method of manufacturing pyrolysis oil will be described below with reference to FIGS. 1 to 2 described above.

Referring to FIG. 3, a biomass 141 is supplied into the first reactor 110 of the mixed pyrolysis device 100 to allow rapid pyrolysis reaction, thereby obtaining a first high-temperature gas and a bio-tea (S10). . In addition, the polymer waste 151 is supplied to the inside of the second reactor 120 for rapid pyrolysis reaction, thereby obtaining a second high temperature gas and a polymer difference (S20). Here, the rapid pyrolysis reaction step of the biomass 141 and the rapid pyrolysis reaction step of the polymer waste 151 may be performed together in parallel.

Referring to FIG. 4, first, the biomass 141 may be supplied from the first feeder 140 through the inlet 103 of the first reactor 110. In addition, as the motor 107 rotates by the motor controller 109b, the screw 102 inside the first reactor 110 rotates in one direction to transfer the biomass 141 (S110).

Here, a filler may be provided inside the first reactor 110, and the screw 102 agitates the biomass 141 and the filler, and transfers the biomass 141 and the filler from the inside of the first reactor 110 can do.

Subsequently, the outer wall of the body 101 and the screw 102 of the first reactor 110 may be heated by the heater 108 (S120). Here, the heater 108 may heat the body 101 and the screw 102 within the optimum pyrolysis reaction temperature of the biomass 141, that is, in the range of 450 to 550°C.

Subsequently, a rapid pyrolysis reaction of the biomass 141 occurs inside the first reactor 110, and accordingly, the first hot gas is discharged through the gas outlet 104 of the first reactor 110, and the by-product outlet By-products, that is, bio-tea may be discharged through 105 (S130).

As described above, in this embodiment, by heating the first reactor 110 and the screw 102 within the optimal pyrolysis reaction temperature range of the biomass 141 horizontally transferred inside the first reactor 110, the biomass The first high-temperature gas and bio-tea may be generated and discharged by the rapid pyrolysis reaction of the mass 141.

Meanwhile, in the mixed pyrolysis apparatus 100 of the present invention, the configurations of the first reactor 110 and the second reactor 120 are substantially the same. Therefore, the rapid pyrolysis process of the biomass 141 according to FIG. 4 can be applied equally to the rapid pyrolysis process of the polymer waste 151 supplied to the second reactor 120. However, since the polymer waste 151 has an optimal pyrolysis reaction temperature in the range of 400 to 450°C, it will be natural that the heater and motor of the second reactor 120 must be applied differently from the first reactor 110 for this purpose. .

Referring again to FIG. 3, the first high-temperature gas discharged from the first reactor 110 is first filtered using the first filter 131, thereby removing solid particles and metal particles in the first high-temperature gas. I can. Likewise, the second high temperature gas discharged from the second reactor 120 may be first filtered using the second filter 132 to remove solid particles and metal particles therein (S40).

In addition, by-product heater 108 is used to burn by-products, that is, bio-car and polymer-car, discharged from each of the first reactor 110 and second reactor 120, and the high-temperature combustion exhaust gas generated accordingly is burned. It can be provided as a heater heat source of the reactor (S30).

Subsequently, the first high-temperature gas that has passed through the first filter 131 is reformed by catalytic reaction using the first catalyst 134, and the second filter 132 is passed through the second catalyst 135. The second high temperature gas may be subjected to a catalytic reaction to reform (S50). The moisture content contained in each high-temperature gas may be reduced through such a catalytic reaction.

Subsequently, the catalytically reacted first high temperature gas and the second high temperature gas are collected, and the collected gas is secondarily filtered using the third filter 133 to remove internal fine particles (S60).

And, it is possible to produce pyrolysis oil by condensing the secondary filtered gas through the condensation module 136 (S70).

Referring to FIG. 5, the gas that has passed through the third filter 133 is supplied to the first condenser 136a of the condensation module 136 and may be condensed at a low temperature (S210). Accordingly, the first condenser 136a may recover the liquid pyrolysis oil from the hot gas (S240).

Subsequently, the gas that is not condensed in the first condenser 136a may be provided to the second condenser 136b to be condensed once again (S220). Accordingly, the second condenser 136b may recover the liquid pyrolysis oil from the hot gas (S240).

Subsequently, the pyrolysis oil droplets not condensed in the second condenser 136b are provided to the electrostatic precipitator 136c, and pyrolysis oil may be recovered from the gas using the corona discharge phenomenon of the electrostatic precipitator 136c (S230). ).

On the other hand, the non-condensed gas that has not been recovered as oil from the electrostatic precipitator (136c) is provided back to the inside of the first reactor 110 and the second reactor 120 through the blower 138 so that it can be recycled in the subsequent pyrolysis process. Yes (S250).

As described above, in the method for producing pyrolysis oil according to the present embodiment, the biomass 141 and the polymer waste 151 are rapidly pyrolyzed at the optimum pyrolysis reaction temperature through respective reactors, so that the biomass 141 And it is possible to increase the pyrolysis reaction efficiency for each of the polymer waste 151.

In addition, the pyrolysis oil production method of this embodiment is generated through a pyrolysis reaction by individually or integrally filtering high-temperature gas resulting from pyrolysis of biomass 141 and high-temperature gas due to pyrolysis of polymer waste 151 at least twice. High-quality pyrolysis oil can be manufactured by increasing the removal efficiency of solid particles, metal particles, and fine particles from the resulting gas. In addition, the pyrolysis oil production method of the present embodiment can increase the production yield of high-quality pyrolysis oil by recovering the pyrolysis oil through at least two condensation and one electrical dust collection for the filtered and reformed hot gas.

100: mixed pyrolysis device 110: first reactor
101: body 102: screw
106a, 106b: heating member 107: motor
108: heater 109: control unit
120: second reactor 131: first filter
132: second filter 133: third filter
134: first catalyst 135: second catalyst
136a: first condenser 136b: second condenser
136c: Electric dust collector

Claims (15)

A first reactor for rapid pyrolysis reaction of the biomass while transferring the supplied biomass to the other side;
A second reactor for rapid pyrolysis reaction of the polymer waste while transferring the supplied polymer waste to the other side;
A filtration module for filtering the hot gas discharged from the other gas outlets of the first and second reactors; And
Condensation module for producing pyrolysis oil by condensing the high-temperature gas passing through the filtration module,
A screw is provided inside each of the first and second reactors to transfer the biomass and polymer waste to the other side by rotating in one direction,
The filtration module,
A first filter for filtering the hot gas discharged from the first reactor;
A second filter for filtering the hot gas discharged from the second reactor; And
A mixed pyrolysis apparatus comprising a third filter for collecting and filtering the gas that has passed through each of the first filter and the second filter. The method of claim 1,
Each of the first and second reactors,
A hollow body into which the screw for transferring the biomass and polymer waste is inserted and coupled thereto;
At least one heating member surrounding the outer peripheral surface of the body;
A heater for providing heat to each of the heating member and the screw based on the optimum pyrolysis reaction temperature range of the biomass and polymer waste;
A motor rotating the screw in one direction; And
A mixed pyrolysis apparatus comprising a motor controller for controlling the rotational speed of the motor and a controller including a temperature controller for controlling the generated heat temperature of the heater. delete The method of claim 1,
Each of the first filter and the second filter,
A mixed pyrolysis apparatus, characterized in that at least two are cyclone dust collectors arranged in series. The method of claim 1,
A first catalyst disposed between the first filter and the third filter to perform a catalytic reaction of the gas that has passed through the first filter to be reformed; And
A mixed pyrolysis apparatus further comprising a second catalyst disposed between the second filter and the third filter to catalytically react and reform the gas that has passed through the second filter. The method of claim 1,
The condensation module,
A first condenser for producing the pyrolysis oil by condensing the hot gas passing through the filtration module;
A second condenser for producing the pyrolysis oil by condensing the gas that has passed through the first condenser; And
A mixed pyrolysis apparatus comprising an electric precipitator for producing the pyrolysis oil by collecting the gas passing through the second condenser through corona discharge. The method of claim 6,
Mixing pyrolysis apparatus further comprising an electric heater for reducing the viscosity of the pyrolysis oil by heating the outer wall of the electrostatic precipitator. The method of claim 6,
The mixed pyrolysis apparatus, characterized in that the first condenser and the second condenser are arranged in series connection. The method of claim 1,
A first feeder for supplying the biomass to the inlet of the first reactor;
A second feeder for supplying the polymer waste to the inlet of the second reactor;
A gas supplier for supplying a carrier gas into each of the first supplier and the second supplier;
A by-product combustor for combusting by-products discharged from the other by-product outlets of each of the first and second reactors; And
Mixing pyrolysis apparatus further comprising a blower for supplying the non-condensed gas discharged from the condensation module into the first and second reactors. Discharging the first hot gas by rapid pyrolysis reaction while rotating the internal screw of the biomass supplied through the inlet of the first reactor and transferring it to the other side;
Discharging the second high temperature gas by rapid pyrolysis reaction while rotating the screw inside the polymer waste supplied through the inlet of the second reactor to the other side;
Filtering each of the first high-temperature gas and the second high-temperature gas, and reforming the filtered gas by catalytic reaction; And
Condensing the filtered and reformed gas to produce pyrolysis oil,
The step of discharging the first high-temperature gas and the step of discharging the second high-temperature gas are performed together in parallel. The method of claim 10,
The step of discharging the first high temperature gas,
A method for producing pyrolysis oil using a mixed pyrolysis apparatus further comprising the step of pyrolyzing the biomass by heating the outer surface of the first reactor and the screw within a range of 450 to 550°C. The method of claim 10,
The step of discharging the second high temperature gas,
A method for producing pyrolysis oil using a mixed pyrolysis apparatus further comprising the step of pyrolyzing the polymer waste by heating the outer surface and the screw of the second reactor within a range of 400 to 450°C. The method of claim 10,
Filtering each of the first high-temperature gas and the second high-temperature gas, and reforming the filtered gas by catalytic reaction,
First filtering each of the first hot gas and the second hot gas;
Reforming by reacting each of the first filtered first high temperature gas and second high temperature gas into a catalytic reaction; And
A method of producing pyrolysis oil using a mixed pyrolysis device comprising the step of collecting the reformed first high temperature gas and the second high temperature gas and performing secondary filtering. The method of claim 10,
The step of producing the pyrolysis oil,
Recovering the pyrolysis oil from the filtered and reformed gas using a first condenser;
Recovering the pyrolysis oil from the gas that has passed through the first condenser using a second condenser; And
A method of producing pyrolysis oil using a mixed pyrolysis device comprising the step of recovering the pyrolysis oil from the gas passing through the second condenser using an electrostatic precipitator. The method of claim 10,
Supplying the biomass and polymer waste to each of the first and second reactors together with a carrier gas; And
The method of manufacturing pyrolysis oil using a mixed pyrolysis device further comprising supplying non-condensed non-condensed gas among the filtered and reformed gases to each of the first and second reactors.

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