KR20170132640A - A Bio oil manufacturing system using oxy-fuel combustion energy recovery device and circulating fluidized bed fast pyrolysis device and method for manufacturing Bio oil using the same - Google Patents

Abstract

The present invention relates to a bio-oil production system, in which char which disturbs bio-oil production processes is combusted and removed through a biomass feeder, a rapid thermal cracking reactor, a centrifugal force dust collecting device, a bio-oil condenser, an electric precipitator, a pure oxygen combustion energy recovery device and a CO_2 concentration control device, so a secondary reaction in the reactor can be suppressed to increase the yield of the bio-oil.

Description

Technical Field The present invention relates to a bio-oil production system using a pure oxygen combustion energy recovery apparatus and a circulating fluidized bed rapid pyrolysis apparatus, and a bio-oil production system using the same. Bio oil using the same}

The present invention relates to a bio-oil production system using a pure oxygen combustion energy recovery device and a circulating fluidized-bed rapid thermal decomposition device, and a bio-oil production method using the same, wherein heat generated by combining a pure oxygen combustion energy recovery device with a recycle portion of a fluid- As a supplementary heat source for heating the fluidized medium, the high concentration CO ₂ is mixed with the non-condensing gas and recycled to the fluidized gas to be supplied to the rapid thermal decomposition reactor. Thus, compared to the conventional circulating fluidized bed system, To an oil production method.

As fossil energy depletion and global warming problems become more serious, the need for the development and dissemination of alternative energy is becoming increasingly recognized worldwide, and a variety of new and renewable energy and alternative energy research are actively being conducted. Among them, bioenergy that produces energy using pulmonary biomass as raw material is a field of attention because it is carbon neutral and has a small environmental impact.

The pulmonary biomass feedstock can be transformed into a more valuable form of energy through a thermochemical process, and the thermochemical process is divided into three processes: pyrolysis, gasification, and combustion. Pyrolysis technology is a method of recovering products in liquid, vapor, and solid form by thermally decomposing the raw materials under anoxic conditions.

The rapid pyrolysis technique among the pyrolysis methods is a technique that can maximize the yield of the liquid product by operating the gas retention time in the reactor as short as 2 seconds or less. Fluidized bed reactors with high heat transfer efficiency are often used in rapid pyrolysis processes. Among them, a circulating fluidized bed reactor is a fluidized bed reactor which can perform various physicochemical reactions through active contact between high velocity gas and particles by operating at a superficial velocity higher than that of a bubbling fluidized bed reactor.

The circulating fluidized bed reactor has very high gas-solid mixing and homogeneity with respect to the whole layer, so that it has high contact efficiency and high pyrolysis efficiency even at low excess air ratio. Also, because of the high superficial velocity, it is suitable for large scale equipment because it can treat fuel more than unit area. Bio-oil condenses and recovers gas from pyrolyzed vapor phase, mainly shell and tube heat exchanger and direct contact heat exchanger.

Unlike combustion and gasification processes that use atmospheric air, rapid pyrolysis processes must be carried out under anaerobic conditions and fluidized gas that does not contain oxygen is used. In the circulating fluidized bed process, a large amount of fluidized gas is required because all of the solid particles in the reactor must be scattered. Supplying fresh fluidizing gas during operating hours to maintain anaerobic conditions requires enormous operating costs.

In addition, char, which is a byproduct produced during rapid thermal decomposition, stays in the reactor and acts as a catalyst for decomposing the product in the vapor state, which affects the yield of bio oil and impedes contact between the fluid medium and biomass, It also affects efficiency and must be removed quickly.

However, development of rapid pyrolysis technology and manufacturing system satisfying all of the above conditions is insufficient.

Korean Patent No. 10-1309667

The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a pure oxygen combustion energy recovery device for a recycle section of a fluidized medium, which removes the ozone which has a negative influence on the rapid pyrolysis process and bio oil yield, And to provide a method of reducing operating costs by recirculating the generated high concentration CO ₂ to the rapid thermal cracking reactor together with the non-condensing gas.

In order to accomplish the above object, the present invention provides a bio-oil production system for producing bio-oil by condensing gas produced by rapid pyrolysis of biomass, comprising: a biomass supply device for supplying biomass inside through a supply pipe; A rapid thermal decomposition reactor in which the biomass supplied to the biomass feeder is mixed with the fluid medium and pyrolyzed rapidly, a centrifugal force dust collector which receives the pyrolysis gas of the biomass from the rapid pyrolysis reactor and recovers the pyrolysis gas contained in the pyrolysis gas, A bio-oil condenser for condensing the bio-oil from the pyrolysis gas removed from the centrifugal force collector by the centrifugal force collector, and a pump for collecting dust and oil mist from the pyrolysis gas not condensed with the bio-oil from the bio-oil condenser, An electrostatic precipitator, Group with oxy-fuel combustion energy recovery apparatus described above with oxy-fuel combustion of the recovered char from the centrifugal force dust collection device rapidly supplying the fluidized medium heated to a pyrolysis reactor, and supplying the generated high-concentration CO ₂ to the non-condensing gas and mixed with rapid pyrolysis reactor The present invention also provides a system for manufacturing a bio-oil using the pure oxygen combustion energy recovery device and the circulating fluidized bed rapid thermal decomposition device.

In accordance with another aspect of the present invention, there is provided a method for producing a bio-oil, comprising the steps of: (a) supplying biomass from a biomass feeder to a rapid thermal cracking reactor; Wherein the biomass is pyrolyzed rapidly due to the flow medium as the inside and the outside of the rapid pyrolysis reactor are heated, and (c) a centrifugal force collector is used to remove the pyrolysis gas from the pyrolysis gas generated during the rapid pyrolysis process, The method comprising the steps of: (a) combusting a gas recovered from the apparatus in a pure oxygen combustion energy recovery apparatus to supply a heated fluid medium and high concentration CO ₂ to the rapid thermal decomposition reactor; and (d) supplying the pyrolysis gas, (B) extracting the bio-oil from the bio-oil condenser through a condensation process; and And a step of collecting the dust and oil mist after the pyrolysis gas which is not condensed with the io oil is transferred to the electrostatic precipitator and further extracting the bio-oil, characterized in that the pure oxygen combustion energy recovery device and the circulating fluidized bed rapid thermal decomposition The present invention also provides a method for producing a bio-oil using the apparatus.

The present invention has the following effects.

Firstly, the present invention is a method for producing bio-oil by circulating fluidized-bed rapid pyrolysis, which is an obstacle to the process of producing bio-oil, by oxy-fuel combustion, thereby efficiently burning the long- The secondary reaction in the reactor can be inhibited and the yield of the bio-oil can be increased.

Second, the present invention can save heat energy used for heating the flow medium by using the heat generated from the pure oxygen combustion energy recovery device for the circulating flow medium heating.

Third, the present invention enables CCS (carbon capture & storage) by capturing CO ₂ generated through pure oxygen combustion.

Fourth, the present invention can reduce pollutants such as NOx that can be generated during combustion by injecting air through pure oxygen combustion.

Fifth, the present invention uses a high-concentration CO ₂ generated from a pure oxygen combustion energy recovery device with a non-condensing gas and supplies it to a rapid thermal decomposition reactor to use as a fluidizing gas, thereby reducing a supply amount of a new gas, The cost can be reduced.

Sixth, the average molecular weight in the fluidized gas can be controlled through the high concentration CO ₂ concentration control device, and the flow region can be changed. The change in the flow region affects gas-solid intermixing and heat transfer, so that the rapid pyrolysis reaction can be controlled as the result.

Seventh, the gas concentration distribution in the fluidized gas can be controlled through the high concentration CO ₂ concentration control device. In the rapid thermal decomposition reaction, the reaction efficiency may increase or decrease depending on the composition of the fluidizing gas, so that the thermal decomposition reaction can be finally controlled by adjusting the concentration distribution in the fluidizing gas.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a configuration diagram showing an embodiment of a bio-oil production system of the present invention. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings, in which a system for manufacturing a bio-oil using a pure oxygen combustion energy recovery apparatus, a circulating fluid bed rapid pyrolysis apparatus and a method for producing bio-

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a configuration diagram showing an embodiment of a bio-oil production system of the present invention. Fig.

The present invention relates to a bio-oil production system using a pure oxygen combustion energy recovery apparatus and a circulating fluid bed rapid pyrolysis apparatus, and more particularly, to a bio-oil production system for producing a bio-oil by condensing gas produced by rapid pyrolysis of biomass, A rapid thermal decomposition reactor 110 for rapidly pyrolyzing biomass supplied to the biomass supply device due to a fluid medium, a rapid thermal decomposition reactor 110 for supplying a biomass to the rapid thermal decomposition reactor 110, A centrifugal force collecting device 120 for receiving the pyrolysis gas of the biomass from the pyrolysis gas and recovering the pyrolysis gas contained in the pyrolysis gas from the pyrolysis gas, Oil condenser 130, condensing the bio-oil from the bio-oil condenser 130 with bio-oil An electrostatic precipitator 140 for collecting dust and oil mist from a pyrolysis gas which is not decomposed and recovered together with the bio oil, and an electrostatic precipitator 140 for burning oxygen recovered from the centrifugal force dust collector 120 by pure oxygen combustion to the rapid thermal decomposition reactor 110 a fluidized medium, and is characterized in that the configuration oxy-fuel combustion energy recovery device 150 and the CO ₂ concentration control device 160 for supplying the high-concentration CO ₂ as the fluidizing gas.

The present invention biomass supply 100, a fast pyrolysis reactor 110, the centrifugal force dust collection unit 120, a bio-oil condenser 130, the electric dust collector 140, and the oxy-fuel combustion energy recovery device (150), CO ₂ Which is an obstacle to the process of producing bio-oil through the circulating fluidized-bed rapid thermal decomposition, is combusted and removed to thereby suppress the secondary reaction in the reactor, thereby improving bio-oil yield. To an oil production system (10).

As fossil energy depletion and global warming problems become more serious, the need for the development and dissemination of alternative energy is becoming increasingly recognized worldwide, and a variety of new and renewable energy and alternative energy research are actively being conducted. Among them, bioenergy that produces energy using pulmonary biomass as raw material is a field of attention because it is carbon neutral and has a small environmental impact.

The pulmonary biomass feedstock can be transformed into a more valuable form of energy through a thermochemical process, and the thermochemical process is divided into three processes: pyrolysis, gasification, and combustion. Pyrolysis technology is a method of recovering products in liquid, vapor, and solid form by thermally decomposing the raw materials under anoxic conditions.

The rapid pyrolysis technique among the pyrolysis methods is a technique that can maximize the yield of the liquid product by operating the gas retention time in the reactor as short as 2 seconds or less. Fluidized bed reactors with high heat transfer efficiency are often used in rapid pyrolysis processes. Among them, a circulating fluidized bed reactor is a fluidized bed reactor which can perform various physicochemical reactions through active contact between high velocity gas and particles by operating at a superficial velocity higher than that of a bubbling fluidized bed reactor.

The circulating fluidized bed reactor has very high gas-solid mixing and homogeneity with respect to the whole layer, so that it has high contact efficiency and high pyrolysis efficiency even at low excess air ratio. Also, because of the high superficial velocity, it is suitable for large scale equipment because it can treat fuel more than unit area. Bio-oil condenses and recovers gas from pyrolyzed vapor phase, mainly shell and tube heat exchanger and direct contact heat exchanger.

Unlike combustion and gasification processes that use atmospheric air, rapid pyrolysis processes must be carried out under anaerobic conditions and fluidized gas that does not contain oxygen is used. In the circulating fluidized bed process, a large amount of fluidized gas is required because all of the solid particles in the reactor must be scattered. Supplying fresh fluidizing gas during operating hours to maintain anaerobic conditions requires enormous operating costs.

In addition, char, which is a byproduct produced during rapid thermal decomposition, stays in the reactor and acts as a catalyst for decomposing the product in the vapor state, which affects the yield of bio oil and impedes contact between the fluid medium and biomass, It also affects efficiency and must be removed quickly.

SUMMARY OF THE INVENTION The present invention has been made to overcome the above problems, and it is an object of the present invention to apply a pure oxygen combustion energy recovery device to a recycle section of a fluidized medium to remove a fume which has a negative effect on a rapid pyrolysis process and a bio oil yield, The present invention provides a method for heating a circulating fluidized medium using heat generated in a combustion process, and recycling the generated high concentration CO ₂ to a rapid thermal decomposition reactor to reduce operating costs.

That is, the present invention can increase the yield of bio-oil by suppressing the secondary reaction in the reactor by removing oxygen, which is an obstacle to the process of producing bio-oil through the circulating fluidized bed rapid thermal decomposition, by pure oxygen combustion. Further, the present invention can save heat energy used for heating the flow medium by using the heat generated from the pure oxygen combustion energy recovery device for circulating fluid medium heating. In addition, since the present invention uses high-concentration CO ₂ generated from the pure oxygen combustion energy recovery device as a fluidizing gas by supplying it to the rapid thermal decomposition reactor, it is possible to reduce the amount of new gas supplied and thereby reduce the operation cost of the bio oil production system . In addition, CCS can be captured by capturing generated CO ₂ , and pollutants such as NOx can be reduced through pure oxygen combustion. In addition, since the high concentration CO ₂ generated from the pure oxygen combustion energy recovering device is mixed with the non-condensing gas and supplied to the rapid thermal decomposition reactor and used as the fluidized gas, the amount of new gas can be reduced and the operation cost of the bio oil production system can be reduced . In addition, the average molecular weight of the fluidized gas can be controlled through a high concentration CO ₂ concentration control device, thereby changing the flow region. The change in the flow region affects gas-solid intermixing and heat transfer, so that the rapid pyrolysis reaction can be controlled as the result. In addition, the gas concentration distribution in the fluidized gas can be controlled through the high concentration CO ₂ concentration adjusting device. In the rapid thermal decomposition reaction, the reaction efficiency may increase or decrease depending on the composition of the fluidizing gas, so that the thermal decomposition reaction can be finally controlled by adjusting the concentration distribution in the fluidizing gas.

The biomass supply apparatus 100 is configured to supply biomass inside through a supply pipe. The biomass feeder 100 can be provided in one side of the rapid thermal cracking reactor 110 and can be used in various forms and materials as long as it can supply the biomass into the rapid thermal cracking reactor 110.

The rapid thermal decomposition reactor 110 is configured such that the biomass supplied to the biomass feeder is rapidly pyrolyzed by mixing with the fluid medium. The rapid thermal decomposition reactor 110 is a member where biomass is pyrolyzed and gasified, and is a member for rapid pyrolysis of biomass using a fluid medium. In the rapid thermal decomposition reactor 110, the inside and the outside of the reactor are heated by the heater, and rapid thermal decomposition reaction occurs in the rapid thermal decomposition reactor 110. When the biomass is rapidly pyrolyzed as described above, pyrolysis gas containing bio-oil can be generated from the biomass.

The centrifugal force collector 120 receives the pyrolysis gas of the biomass from the rapid thermal decomposition reactor 110 and collects the pyrolysis gas contained in the pyrolysis gas. The centrifugal force dust collector 120 is installed to recover the slag contained in the pyrolysis gas. Various types of centrifugal force dust collecting apparatuses can be used as long as the centrifugal force dust collecting apparatus 120 can collect the dust contained in the gas. In addition, a plurality of centrifugal force dust collecting apparatuses 120 may be continuously arranged, and pyrolysis gas discharged from the rapid thermal cracking reactor 110 may be processed stepwise by a plurality of centrifugal force dust collecting apparatuses.

The bio-oil condenser 130 is configured to condense the bio-oil from the pyrolysis gas that has been removed from the centrifugal force dust collector 120. The bio-oil condenser 130 may be configured to include various processes as long as the bio-oil can be condensed from the pyrolysis gas.

The electrostatic precipitator 140 collects dust and oil mist from the pyrolysis gas that is not condensed into bio-oil from the bio-oil condenser 130, and collects it together with the bio-oil. The electrostatic precipitator 140 can be manufactured in a configuration including various processes as long as bio-oil can be recovered by collecting dust and oil mist.

The pure oxygen combustion energy recovery device 150 is configured to burn pure oxygen recovered from the centrifugal force dust collector 120 to supply the fluidized medium heated by the rapid thermal decomposition reactor 110 and high-concentration CO ₂ as the fluidizing gas. The pure oxygen combustion energy recovery apparatus 150 can be manufactured in various configurations as long as it can supply the fluid medium heated by the rapid thermal decomposition reactor 110 and the high concentration CO ₂ by burning the recovered ozone from the centrifugal force dust collector 120 . The high concentration CO ₂ produced through the pure oxygen combustion energy recovery device is mixed with the fluidizing gas composed of the non-condensable gas as the pyrolysis product through the CO ₂ concentration regulator 160 and the amount of CO _{2 in} the recycle to the rapid pyrolysis reactor 110 To adjust the average molecular weight of the mixed fluidized gas to control the flow region of the rapid thermal decomposition reactor 110. This can affect gas-solid mixing and heat transfer and ultimately promote the reaction.

The CO ₂ concentration controller 160 mixes the high-concentration CO ₂ generated from the pure-oxygen combustion energy recovery device 150 with the non-condensing gas according to a target concentration and supplies the mixture to the rapid thermal decomposition reactor 110. A variety of apparatuses can be used as long as the CO ₂ concentration regulator 160 can supply the high-concentration CO ₂ to the rapid thermal decomposition reactor 110 according to a target concentration.

The present invention also relates to a method for producing a bio-oil using a pure oxygen combustion energy recovery apparatus and a circulating fluid bed rapid pyrolysis apparatus, and more particularly, to a bio-oil production method for producing a bio-oil by condensing gas produced by rapid pyrolysis of biomass (B) mixing the biomass with the fluidized medium while heating the inside and the outside of the rapid thermal decomposition reactor (110); (c) (C) a centrifugal force collector (120) is removed from the pyrolysis gas generated in the rapid pyrolysis process, and the recovered ozone from the centrifugal force collector (120) is subjected to pure oxygen combustion energy the combustion in the recovery device 150 is heated to the rapid pyrolysis reactor 110 via the CO ₂ concentration control apparatus 160 and the fluidized medium, and And also supplying a CO ₂ as the fluidizing gas, (d) the char is removed with the pyrolysis gas is fed to the bio-oil condenser 130, the bio-oil extracted through a condensation process step, and, (e) the bio-oil And a step of extracting the bio-oil by a method of collecting the dust and the oil mist after the pyrolysis gas not condensed with the bio-oil from the condenser 130 is transferred to the electrostatic precipitator 140.

The present invention relates to a method for producing a bio-oil using a pure oxygen combustion energy recovery apparatus and a circulating fluidized-bed rapid thermal decomposition apparatus, and comprises steps (a) to (e). A detailed configuration not described in the present invention is described in the bio-oil production system 10 described above.

In step (a), the biomass is supplied from the biomass feeder 100 to the rapid thermal decomposition reactor 110. In step (a), the biomass is supplied to the rapid thermal decomposition reactor 110 as a preparation step for producing gas by thermal decomposition of the biomass.

In step (b), the inside and the outside of the rapid thermal decomposition reactor 110 are heated, and the biomass is thermally decomposed rapidly due to the flowing medium. In step (b), the biomass is pyrolyzed to produce gas.

In the step (c), the centrifugal force collector 120 is removed from the pyrolysis gas generated in the rapid pyrolysis process, and the recovered ozone from the centrifugal force dust collector 120 is returned to the pure oxygen combustion energy recovery device 150. [ And circulates the heated fluidized medium to the rapid thermal decomposition reactor 110 and supplies the high concentration CO ₂ to the rapid thermal decomposition reactor 110 through the CO ₂ concentration regulator 160. The high molecular weight CO ₂ produced through the combustion device is mixed with a fluidizing gas composed of a non-condensable gas as a pyrolysis product to regulate the amount of CO _{2 in} the recycle to the rapid thermal decomposition reactor 110, The flow region of the pyrolysis reactor 110 can be changed. In addition, the gas concentration distribution in the fluidized gas can be controlled through the CO ₂ concentration controller 160. Since the efficiency of the reaction may increase or decrease depending on the composition of the fluidized gas, the concentration distribution in the fluidized gas may be adjusted Finally, the pyrolysis reaction can be controlled. In the step (c), a plurality of centrifugal force dust collectors 120 may be installed depending on the situation. In the step (c), the flow medium heated by the rapid thermal decomposition reactor 110 and the high-concentration CO ₂ are supplied to the fluidizing gas from the pure oxygen combustion energy recovery apparatus 150.

In the step (d), the pyrolysis gas from which the lime is removed is supplied to the bio-oil condenser 130, and the bio-oil is extracted through the condensation process. (d) is a step of condensing the pyrolysis gas to extract bio-oil, and various bio-oil condensers 130 may be manufactured and used.

In step (e), the pyrolysis gas, which is not condensed into bio-oil, is transferred from the bio-oil condenser 130 to the electrostatic precipitator 140, and then the bio-oil is further extracted by collecting dust and oil mist. The electrostatic precipitator 140 can be manufactured in a configuration including various processes as long as bio-oil can be recovered by collecting dust and oil mist.

As described above, the preferred embodiment of the bio-oil production system using the pure oxygen combustion energy recovery device and the circulating fluidized-bed rapid thermal decomposition device according to the present invention and the bio-oil production method using the same is explained as at least one embodiment, The scope of the present invention is not limited by the description of the drawings or the drawings. It will also be appreciated by those skilled in the art that the concepts and embodiments of the invention set forth herein may be used as a basis for modifying or designing other structures for carrying out the same purposes of the present invention It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. And various changes, substitutions, and alterations can be made without departing from the scope of the invention.

100: Biomass feeder
110: Rapid thermal cracking reactor
120: Centrifugal force collector
130: Bio-oil condenser
140: Electrostatic precipitator
150: Oxygen combustion energy recovery device
160: CO ₂ concentration control device
G1: Fluidized gas
G2: Non-condensing gas
G3: High concentration CO ₂
G4: O ₂

Claims (4)

A bio-oil production system for producing a bio-oil by condensing gas produced by rapid pyrolysis of biomass,
A biomass supply device 100 for supplying biomass inside through a supply pipe;
A rapid thermal cracking reactor 110 for rapidly pyrolyzing biomass supplied to the biomass feeder due to a fluid medium;
A centrifugal force collector 120 for receiving the pyrolysis gas of the biomass from the rapid pyrolysis reactor 110 and recovering the pyrolysis gas contained in the pyrolysis gas;
A bio-oil condenser 130 for condensing the bio-oil from the pyrolysis gas removed from the centrifugal force dust collector 120;
An electrostatic precipitator 140 for collecting dust and oil mist from the pyrolysis gas not condensed with the bio oil from the bio-oil condenser 130 and collecting the dust and oil mist together with the bio oil; And
A pure oxygen combustion energy recovery device 150 for supplying pure oxygen to the rapid thermal decomposition reactor 110 and supplying the heated medium to the rapid thermal decomposition reactor 110, a CO ₂ concentration regulator 160, Wherein the high-concentration CO ₂ is mixed with a non-condensing gas and supplied as a fluidizing gas. The system for manufacturing a bio-oil using a pure oxygen combustion energy recovery device and a circulating fluidized bed rapid thermal decomposition device. The method according to claim 1,
The pure oxygen combustion energy recovering apparatus 150 is a device for supplying a heated fluid to the rapid thermal decomposition reactor 110 by burning oxygen recovered from the centrifugal force collector 120, And a CO ₂ concentration adjusting device 160 for adjusting the concentration of CO ₂ produced from the apparatus 150 to mix the high concentration CO ₂ with the non-condensing gas into the rapid thermal decomposition reactor 110 to supply the mixed gas to the fluidizing gas And a bio - oil production system using a circulating fluidized - bed rapid pyrolysis unit. A method for producing a bio-oil in which biomass is rapidly pyrolyzed to condense the produced gas to produce a bio-oil,
(a) supplying biomass from a biomass feeder (100) to a rapid thermal cracking reactor (110);
(b) rapidly pyrolyzing the biomass due to the fluidized medium while heating the inside and the outside of the rapid thermal decomposition reactor 110;
(c) a centrifugal force collecting device 120 is used to remove the pyrolysis gas from the pyrolysis gas generated in the rapid pyrolysis process, and the ozone recovered from the centrifugal force collecting device 120 is burned in the pure oxygen combustion energy recovery device 150 Circulating the fluidized medium heated by the rapid thermal decomposition reactor 110 and mixing the high concentration CO ₂ with the non-condensed gas through the CO ₂ concentration controller 160 to supply the fluidized gas;
(d) supplying the pyrolysis gas to the bio-oil condenser 130 to extract the bio-oil through a condensation process; And
(e) a pyrolysis gas which is not condensed with bio-oil from the bio-oil condenser 130 is transferred to the electrostatic precipitator 140, and then the bio-oil is further extracted by a method of collecting dust and oil mist (EN) A method for producing bio - oil using a pure oxygen combustion energy recovery device and a circulating fluidized bed rapid pyrolysis device. The method of claim 3,
The step (c)
The centrifugal force collecting device 120 recovers the spent fuel in the oxy-fuel combustion energy recovery device 150 to circulate the fluidized medium heated by the rapid thermal decomposition reactor 110 and the CO ₂ concentration control device 160 CO ₂ is mixed with a non-condensing gas and supplied as a fluidizing gas. The method for producing bio-oil using a pure oxygen combustion energy recovery apparatus and a circulating fluidized bed rapid thermal decomposition apparatus.

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