KR20220019891A - A biomass fluidized bed gasification system - Google Patents

Abstract

The present invention provides a biomass fluidized bed gasification system including: a syngas generating device that synthesizes syngas using biomass; a fire extinguishing device that blocks the inflow of the syngas based on the results of sensing the pressure, temperature and oxygen concentration of the syngas generating device in real time, and supplies nitrogen to prevent a fire; and a recycling device that generates electricity by recycling the syngas from which heavy metals, tar and dust mixed in the syngas generated by the syngas generating device are removed as a heat source, and the syngas generating device removes tar mixed in the syngas.

Description

A biomass fluidized bed gasification system

The present invention relates to a biomass fluidized bed gasification system, and more particularly, biomass that produces electricity with syngas generated using biomass, prevents fire in advance, and removes tar while extinguishing fire. It relates to a fluidized bed gasification system.

The main way humans obtain thermal energy and kinetic energy is a large amount of energy released through combustion of fuel and oxygen. However, today's energy problem, where resources are scarce, has already emerged as the most important strategic problem in countries around the world. There are three fuel types of energy: gas fuel, liquid fuel, and solid fuel, and the corresponding fossil energy obtained is natural gas, oil and coal. As we all know, fossil energy includes coal, and petroleum and natural gas are non-renewable energy sources.

However, biomass energy is a typical kind of renewable energy through plant photosynthesis of fixed Earth's solar energy.

The fuel gas produced in the gasifier contains tar, which is a high molecular weight hydrocarbon. Tar is in a gaseous state at a high temperature of 350°C or higher, but when it becomes low temperature, it aggregates and attaches to each part such as a pipe, causing problems such as blockage.

Accordingly, the general biomass fluidized bed gasification system according to the prior art cannot effectively remove tar, which is a by-product inevitably generated in the process of generating synthesis gas. Therefore, it is necessary to develop a technology that improves energy efficiency while removing tar more effectively.

In addition, the pressure balance in the gasification system is very important because the general biomass fluidized bed gasification system operates under pressure. countermeasures are needed

(Patent Document 1) Registered Patent Publication No. 10-1156884 (2012.06.08.)

(Patent Document 2) Registered Patent Publication No. 10-0782381 (2007.11.29.)

An object of the present invention for solving the above problems is the internal pressure of the gasifier, the internal pressure of the temperature rising chamber, the internal temperature and oxygen concentration of the activated carbon reactor, the internal temperature of the heat exchanger and the internal temperature of the oil scrubber based on the valve part It is to provide a biomass fluidized bed gasification system that controls opening and closing and supplies nitrogen from a nitrogen supply unit to an activated carbon reactor to prevent and extinguish a fire.

In addition, an object of the present invention to solve the above problems is to dissolve the tar mixed in the synthesis gas flowing into the oil scrubber into oil, supply the oil containing the tar to the atmospheric pressure chamber, and To provide a biomass fluidized bed gasification system that reuses oil containing

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. There will be.

The configuration of the present invention for achieving the above object is a syngas generating device for synthesizing syngas using biomass; a fire extinguishing device for preventing a fire by blocking the inflow of the syngas and supplying nitrogen based on the result of sensing the pressure, temperature and oxygen concentration of the syngas generating device in real time; and a recycling device that generates electricity by recycling, as a heat source, the syngas from which heavy metals, tars and dust are removed from the syngas generated by the syngas generating device. To provide a biomass fluidized bed gasification system, characterized in that the mixed tar is removed.

In an embodiment of the present invention, the synthesis gas generating device includes: a gasifier for generating the synthesis gas by introducing the biomass and air for temperature control; and removing dust mixed with the synthesis gas supplied from the gasifier in communication with the upper part and the side of the gasifier and discharging to the outside, and supplying the flowing sand supplied from the gasifier to the side of the gasifier It may be characterized as comprising a cyclone.

In an embodiment of the present invention, the syngas generator includes an activated carbon reactor for removing heavy metals and tar mixed in the syngas from which the dust is removed from the cyclone; a filtering unit for filtering impurities mixed in the synthesis gas from which the heavy metal and tar are removed from the activated carbon reactor; and an oil scrubber for removing tar mixed in the synthetic gas in which the impurities supplied from the filter unit are filtered.

In an embodiment of the present invention, the oil scrubber includes: an oil chamber for receiving oil and communicating with the filter unit; and an oil injection member, at least a part of which is located inside the oil chamber and sprays the oil, wherein the filtered synthesis gas is introduced into the side of the oil chamber, and at least a portion of the oil injection member is the oil. It may be characterized in that the tar mixed in the filtered syngas is dissolved in the oil as it is located inside the upper side of the chamber and injects the oil into the filtered syngas.

In an embodiment of the present invention, the oil scrubber may include: a first pressure sensing member, at least a part of which is located at an inner upper side of the oil chamber to sense the inner upper side of the oil chamber in real time; and a second pressure sensing member, at least a portion of which is located at the lower inner side of the oil chamber and senses the inner lower side of the oil chamber in real time; It may further include a controller that receives and compares the first pressure information and the second pressure information on the second pressure sensed by the second pressure sensing member.

In an embodiment of the present invention, in the controller, the first pressure sensed by the first pressure sensing member is greater than the second pressure sensed by the second pressure sensing member, and the pressure difference between the first pressure and the second pressure When the pressure difference is greater than the preset pressure difference, it is determined that the tar in the oil scrubber does not dissolve in the oil and the internal pressure of the oil scrubber increases, so that the oil containing the tar is supplied to the atmospheric chamber. It can be characterized by controlling.

In an embodiment of the present invention, the syngas generator includes a heat exchanger for exchanging the heavy metal and tar-removed syngas supplied from the activated carbon reactor; and a gas purifying unit for purifying the tar-removed syngas supplied from the oil scrubber, wherein the heat exchanger heat-exchanges the purified syngas.

In an embodiment of the present invention, the gasifier comprises: a biomass injection unit into which the biomass and the air are input; a temperature increase chamber for heating gas fuel and air for temperature increase input from the outside, and supplying the heated air to the biomass injection unit; and a pressure gauge, at least a portion of which is located inside the biomass injection unit and transmits third pressure information sensing the pressure of the biomass injection unit in real time to the control unit; the fire extinguishing device includes, the biomass injection unit A first valve formed at the rear end, a second valve formed on a first flow path connecting the cyclone and the activated carbon reactor, a third valve formed on a second flow path connected to the first flow path and extending to the outside; a valve unit including a fourth valve formed on a third flow path connecting the activated carbon reactor and the filter unit; and a first sensing member connected to the third flow path to sense the internal temperature and oxygen concentration of the activated carbon reactor, at least a portion of which is located inside the heat exchanger to sense the internal temperature of the heat exchanger in real time A member and at least a part of the sensor is located inside the oil scrubber and includes a third sensing member configured to sense an internal temperature of the oil scrubber, wherein the synthesis gas generating device is connected to the gas purifier and It may further include a; pressure adjusting unit for controlling the synthesis gas generating device and the fire extinguishing device to maintain a preset pressure under the control of the controller.

In an embodiment of the present invention, when the internal pressure of the temperature rising chamber sensed by the pressure gauge is lower than the internal pressure of the biomass injection unit, the first valve operates so that air and the synthesis gas are supplied to the biomass injection unit It may be characterized in that it blocks the inflow into the temperature rising chamber from the.

In an embodiment of the present invention, the fire extinguishing device includes a nitrogen supply unit connected to the activated carbon reactor, and the first sensing member detects the oxygen concentration of the activated carbon reactor at a preset temperature at which the internal temperature of the activated carbon reactor is set. In one case, the second valve, the third valve, and the fourth valve operate to block the air and the synthesis gas in the activated carbon reactor from flowing into the cyclone and the filtering unit, and the nitrogen supply unit is the It may be characterized in that the activated carbon reactor is extinguished by supplying nitrogen to the activated carbon reactor.

In an embodiment of the present invention, when the oxygen concentration of the activated carbon reactor is sensed by the first sensing member, the internal temperature of the heat exchanger is measured by the second sensing member and the oil scrubber by the third sensing member Measure the internal temperature, and when the internal temperature of the heat exchanger and the internal temperature of the oil scrubber rise above a preset temperature, by operating the fourth valve to block the inflow of air and the synthesis gas into the filter unit can be characterized.

In an embodiment of the present invention, the synthesis gas generating device is located between the temperature rising chamber and the oil scrubber and pressurizes the tar-containing oil supplied from the oil scrubber to an atmospheric chamber for supplying it to the temperature rising chamber; It may be characterized in that it further comprises.

In an embodiment of the present invention, the recycling device includes: a tank for accommodating the purified syngas that has passed through the pressure control unit; an engine for generating electricity by operating the purified syngas supplied from the tank as a fuel; a combustor for generating steam by operating the purified syngas supplied from the tank as a fuel; and a steam turbine generating electricity by operating based on the steam supplied from the combustor.

The effect of the present invention according to the above configuration is based on the internal pressure of the gasifier, the internal pressure of the temperature rising chamber, the internal temperature and oxygen concentration of the activated carbon reactor, the internal temperature of the heat exchanger and the internal temperature of the oil scrubber. control, and supply nitrogen from the nitrogen supply part to the activated carbon reactor to prevent fires and to extinguish fires to quickly respond to safety accidents.

In addition, an object of the present invention to solve the above problems is to dissolve the tar mixed in the synthesis gas flowing into the oil scrubber into oil, supply the oil containing the tar to the atmospheric pressure chamber, and It is possible to solve problems such as clogging due to coagulation and adhesion to each part, such as piping, by reusing oil containing

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a conceptual diagram illustrating a biomass fluidized bed gasification system according to an embodiment of the present invention.
FIG. 2 is an enlarged view showing the oil scrubber of FIG. 1 in detail.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in several different forms, and thus is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is said to be “connected (connected, contacted, coupled)” with another part, it is not only “directly connected” but also “indirectly connected” with another member interposed therebetween. "Including cases where In addition, when a part "includes" a certain component, this means that other components may be further provided without excluding other components unless otherwise stated.

The terminology used herein is used only to describe specific embodiments, and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram illustrating a biomass fluidized bed gasification system according to an embodiment of the present invention.

The biomass fluidized bed gasification system 400 according to an embodiment of the present invention includes a synthesis gas generating device 100 , a fire extinguishing device 200 , and a recycling device 300 .

The syngas generator 100 synthesizes syngas using biomass and removes tar mixed in the syngas. For this, the synthesis gas generating plant 100 includes a gasifier 110 , a cyclone 120 , an activated carbon reactor 130 , a filtration unit 140 , an oil scrubber 150 , a heat exchanger 160 , and a gas purification unit 170 . ), a pressure control unit 180 and an atmospheric pressure chamber 190 .

The gasifier 110 generates syngas by introducing biomass and air for temperature control. For this purpose, the gasifier 110 includes a biomass injection unit 111 , a temperature increase chamber 112 , and a pressure gauge.

The biomass injection unit 111 is injected with biomass and air. Here, the air is air for temperature control different from the air introduced into the temperature rising chamber 112 .

Accordingly, the biomass injection unit 111 generates synthesis gas using biomass and air for temperature control.

In addition, the biomass injection unit 111 supplies the generated syngas to the cyclone 120 .

The temperature increase chamber 112 heats gas fuel input from the outside and air for temperature increase, and supplies the heated air to the biomass injection unit 111 . The air at this time is air for temperature increase, which is different from the air for temperature control used in the biomass injection unit 111 .

In addition, the temperature increase chamber 112 receives the oil pressurized from the atmospheric pressure chamber 190 and reuses it to heat the air for temperature increase, thereby improving energy efficiency.

At least a part of the pressure gauge is located inside the biomass injection unit 111 and transmits third pressure information that senses the pressure of the biomass injection unit 111 in real time to the control unit.

The cyclone 120 communicates with the upper and side portions of the gasifier 110 to remove dust mixed in the syngas supplied from the gasifier 110 and discharge it to the outside, and the flow sand supplied from the gasifier 110 . It is supplied to the side of the gasifier 110 .

The activated carbon reactor 130 removes heavy metals and tar mixed in the syngas from which the dust supplied from the cyclone 120 is removed. At this time, the activated carbon reactor 130 adsorbs and decomposes tar (C6 or higher benzene, toluene, naphthalene component, etc.) generated most in the gasification process. At this time, the tar that has not been completely removed is dissolved in oil in an oil scrubber 150 to be described later and removed secondarily.

The filtering unit 140 filters impurities mixed in the synthesis gas from which heavy metals and tars are removed from the activated carbon reactor 130 . The filtering unit 140 for this purpose includes a filter for filtering impurities mixed in the synthesis gas from which heavy metals and tars are removed, and an air tower and a cooling tower formed at the front and rear ends of the filter to exchange heat with the synthesis gas.

The filtering unit 140 supplies the filtered synthesis gas to the oil scrubber 150 .

FIG. 2 is an enlarged view showing the oil scrubber of FIG. 1 in detail.

The oil scrubber 150 removes tar mixed with the synthetic gas in which impurities supplied from the filter unit 140 are filtered. The oil scrubber 150 for this purpose includes an oil chamber 151 and an oil spray member 152 .

The oil chamber 151 receives oil and communicates with the filter unit 140 . The filtered synthesis gas is introduced into the side of the oil chamber 151 .

At least a portion of the oil injection member 152 is positioned inside the oil chamber 151 to inject oil toward the filtered synthesis gas.

Specifically, at least a portion of the oil spraying member 152 is located on the inner upper side of the oil chamber 151 and as the oil is sprayed into the filtered synthetic gas, tar mixed in the filtered synthetic gas is dissolved in the oil.

In addition, the oil scrubber 150 includes a first pressure sensing member (part B in FIG. 2 ), at least a part of which is located on the inner upper side of the oil chamber 151, and senses the pressure of the inner upper side of the oil chamber 151 in real time; and At least a portion of the second pressure sensing member (part A of FIG. 2 ) is included at the lower inner side of the oil chamber 151 to sense the pressure at the lower inner side of the oil chamber 151 in real time.

The heat exchanger 160 heat-exchanges the synthesis gas from which heavy metals and tars supplied from the activated carbon reactor 130 are removed.

In addition, the heat exchanger 160 also performs heat exchange with the purified syngas.

The heat exchanger 160 for this purpose includes two cooling units and a cooling tower, and water flows between the cooling unit and the cooling tower to exchange heat with the synthesis gas.

The gas purification unit 170 purifies the tar-removed synthesis gas supplied from the oil scrubber 150 . For this purpose, the gas purification unit 170 may be configured by connecting one STCCD and four CCDFs.

The pressure control unit 180 is connected to the gas purification unit 170 and adjusts the synthesis gas generating device 100 and the fire extinguishing device 200 to maintain a preset pressure under the control of the control unit.

Specifically, the pressure adjusting unit 180 is a synthetic gas generating device 100 by a control unit that controls based on the first to third pressure information sensed and transmitted in real time by the pressure gauge, the first pressure sensing member, and the second pressure sensing member. ) and the total pressure of the fire extinguishing device 200 can be adjusted.

Additionally, by receiving pressure information on all components other than the first to third pressure information, the total pressure of the present invention may be adjusted to maintain a preset pressure.

Here, the preset pressure may be a pressure for normally operating the biomass fluidized bed gasification system 400 of the present invention.

The atmospheric pressure chamber 190 is located between the temperature increasing chamber 112 and the oil scrubber 150 to pressurize the oil containing tar supplied from the oil scrubber 150 and supply it to the temperature increasing chamber 112 .

The fire extinguishing device 200 blocks the inflow of the syngas based on the real-time sensing result of the pressure, temperature and oxygen concentration of the syngas generating device 100 and supplies nitrogen to prevent a fire. The fire extinguishing device 200 for this purpose includes a valve unit 210 , a detection unit 220 , and a nitrogen supply unit 230 .

The valve unit 210 includes a first valve 211 , a second valve 212 , a third valve 213 , and a fourth valve 214 .

The first valve 211 is a shut-off valve formed at the rear end of the biomass injection unit 111 and can be opened and closed under the control of the controller.

The second valve 212 is a shut-off valve formed on the first flow path connecting the cyclone 120 and the activated carbon reactor 130, and can be opened and closed under the control of the controller.

The third valve 213 is a shut-off valve formed on a second flow path that is connected to the first flow path and extends to the outside, and can be opened and closed under the control of the controller.

The fourth valve 214 is a shut-off valve formed on the third flow path connecting the activated carbon reactor 130 and the filtration unit 140, and can be opened and closed under the control of the controller.

The sensing unit 220 includes a first sensing member 221 , a second sensing member 222 , and a third sensing member 223 .

The first sensing member 221 is connected to the third flow path to sense the internal temperature and oxygen concentration of the activated carbon reactor 130 .

At least a portion of the second sensing member 222 is located inside the heat exchanger 160 to sense the internal temperature of the heat exchanger 160 in real time.

At least a part of the third sensing member 223 is located inside the oil scrubber 150 to sense the internal temperature of the oil scrubber 150 .

In addition, the present invention relates to the first pressure information about the first pressure sensed by the first pressure sensing member, the second pressure information about the second pressure sensed by the second pressure sensing member, and the third pressure sensed by the pressure gauge. It further includes a control unit (not shown) for receiving and comparing the third pressure information.

When the first pressure sensed by the first pressure sensing member is greater than the second pressure sensed by the second pressure sensing member, and the pressure difference between the first pressure and the second pressure is greater than a preset pressure difference, the oil scrubber 150 ), the oil scrubber 150 is controlled so that the oil containing the tar is supplied to the atmospheric chamber 190 by determining that the internal pressure of the oil scrubber 150 is not dissolved and the internal pressure of the oil scrubber 150 is increased.

In addition, when the internal pressure of the temperature rising chamber 112 sensed by the pressure gauge is lower than the internal pressure of the biomass injection unit 111, the control unit operates a first valve 211 to be described later so that air and syngas are converted into biomass. By blocking the inflow from the injection unit 111 into the temperature rising chamber 112, a fire is prevented in advance.

In addition, when the oxygen concentration of the activated carbon reactor 130 is sensed by the first sensing member, the internal temperature of the filtration unit 140 is measured by the second sensing member, and the internal temperature of the oil scrubber 150 is measured by the third sensing member. measure At this time, when the internal temperature of the heat exchanger 160 and the internal temperature of the oil scrubber 150 rise above the preset temperature, the fourth valve 214 is operated to allow air and synthesis gas to flow into the filtration unit 140 . It prevents fire in advance by shutting it off.

The nitrogen supply unit 230 is connected to the activated carbon reactor 130 to supply nitrogen to the activated carbon reactor 130 in an emergency.

Specifically, when the first sensing member detects the oxygen concentration of the activated carbon reactor 130 at a preset temperature of the internal temperature of the activated carbon reactor 130, the second valve 212, the third valve 213, and the fourth valve 214 operates to block the inflow of air and synthesis gas in the activated carbon reactor 130 into the cyclone 120 and the filter unit 140 . At this time, the nitrogen supply unit 230 digests the activated carbon reactor 130 by supplying nitrogen to the activated carbon reactor 130 .

The recycling device 300 generates electricity by recycling the syngas from which heavy metals, tars and dust mixed in the syngas generated by the syngas generating device 100 are removed as a heat source. The recycling device 300 for this purpose includes a tank 310 , an engine 320 and a combustor 330 .

The tank 310 receives and stores the purified syngas that has passed through the pressure control unit. The tank 310 supplies the purified syngas to the engine 320 and the combustor 330 as necessary.

The engine 320 generates electricity by operating the purified syngas supplied from the tank 310 as a fuel.

The combustor 330 produces steam by operating the purified syngas supplied from the tank as a fuel.

In addition, the recycling unit 300 may further include a steam turbine that generates electricity by operating based on the steam supplied from the combustor 330 .

According to the present invention as described above, the internal pressure of the temperature increasing chamber and the internal pressure of the gasifier, the internal temperature and oxygen concentration of the activated carbon reactor, the internal temperature of the heat exchanger, and the internal temperature of the oil scrubber are detected and compared in real time, and then the air introduced And by blocking the syngas, it is possible to prevent a fire and minimize damage to equipment and people by extinguishing a fire.

In addition, the present invention dissolves the tar mixed in the synthesis gas flowing into the oil scrubber into oil, supplies the oil containing tar to the atmospheric chamber, and reuses the oil containing the tar in the temperature rising burner to generate compressed air. By supplying it to the gasifier after heating, it is possible to reduce tar and improve energy efficiency.

The above description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

100: syngas generator
110: gasifier
111: biomass injection unit
112: temperature rise chamber
120: cyclone
130: activated carbon reactor
140: filter unit
150: oil scrubber
151: oil chamber
152: oil injection member
160: heat exchanger
170: gas purification unit
180: pressure control unit
190: atmospheric pressure chamber
200: fire extinguishing system
210: valve unit
211: first valve
212: second valve
213: third valve
214: fourth valve
220: sensing unit
221: first sensing member
222: second sensing member
223: third sensing member
230: nitrogen supply unit
300: recycling device
310: tank
320: engine
330: combustor
400: biomass fluidized bed gasification system

Claims (13)

a syngas generator for synthesizing syngas using biomass;
a fire extinguishing device for preventing a fire by blocking the inflow of the syngas and supplying nitrogen based on the result of sensing the pressure, temperature and oxygen concentration of the syngas generating device in real time; and
A recycling device for generating electricity by recycling as a heat source the syngas from which heavy metals, tar and dust are removed from the syngas generated by the syngas generating device; and
The synthesis gas generating device, biomass fluidized bed gasification system, characterized in that to remove the tar mixed in the synthesis gas.
According to claim 1,
The syngas generator,
a gasifier for generating the synthesis gas by introducing the biomass and air for temperature control; and
A cyclone that communicates with the upper part and the side of the gasifier to remove dust mixed in the synthesis gas supplied from the gasifier, discharges it to the outside, and supplies the flowing sand supplied from the gasifier to the side of the gasifier ; Biomass fluidized bed gasification system comprising a.
3. The method of claim 2,
The syngas generator,
an activated carbon reactor for removing heavy metals and tars mixed in the syngas from which the dust is removed from the cyclone;
a filtering unit for filtering impurities mixed in the synthesis gas from which the heavy metal and tar are removed from the activated carbon reactor; and
Biomass fluidized bed gasification system, characterized in that it further comprises; an oil scrubber for removing the tar mixed in the syngas filtered with the impurities supplied from the filtration unit.
4. The method of claim 3,
The oil scrubber,
an oil chamber receiving oil and communicating with the filter unit; and
At least a part of the oil injection member located inside the oil chamber to spray the oil;
The filtered synthesis gas is introduced into the side of the oil chamber,
At least a portion of the oil injection member is located at the upper inner side of the oil chamber, and as the oil is injected into the filtered synthesis gas, tar mixed in the filtered synthesis gas is dissolved in the oil. Fluid bed gasification system.
5. The method of claim 4,
The oil scrubber,
a first pressure sensing member, at least a portion of which is located at the upper inner side of the oil chamber to sense the inner upper side of the oil chamber in real time; and
a second pressure sensing member, at least a portion of which is located at the lower inner side of the oil chamber and senses the inner lower side of the oil chamber in real time;
A control unit for receiving and comparing the first pressure information regarding the first pressure sensed by the first pressure sensing member and the second pressure information regarding the second pressure sensed by the second pressure sensing member; Biomass fluidized bed gasification system.
6. The method of claim 5,
When the first pressure sensed by the first pressure sensing member is greater than the second pressure sensed by the second pressure sensing member, and the pressure difference between the first pressure and the second pressure is greater than a preset pressure difference, It is determined that the tar in the oil scrubber is not dissolved in the oil and the internal pressure of the oil scrubber is increased, and the oil scrubber is controlled so that the oil containing the tar is supplied to the atmospheric chamber Biomass, characterized in that Fluid bed gasification system.
4. The method of claim 3,
The syngas generator,
a heat exchanger for exchanging the heavy metal and tar-removed synthesis gas supplied from the activated carbon reactor; and
Includes; a gas purification unit for purifying the tar-removed synthesis gas supplied from the oil scrubber;
The heat exchanger is a biomass fluidized bed gasification system, characterized in that for exchanging the purified syngas.
6. The method of claim 5,
The gasifier is
a biomass injection unit into which the biomass and the air are input;
a temperature increase chamber for heating gas fuel and air for temperature increase input from the outside, and supplying the heated air to the biomass injection unit; and
At least a part of the pressure gauge is located inside the biomass injection unit and transmits third pressure information sensing the pressure of the biomass injection unit in real time to the control unit;
The fire extinguishing system is
A first valve formed at the rear end of the biomass injection unit, a second valve formed on a first flow path connecting the cyclone and the activated carbon reactor, and a second flow path connected to the first flow path and extending to the outside a valve unit including a third valve and a fourth valve formed on a third flow path connecting the activated carbon reactor and the filtering unit; and
A first sensing member connected to the third flow path to sense the internal temperature and oxygen concentration of the activated carbon reactor, at least a part of the second sensing member located inside the heat exchanger to sense the internal temperature of the heat exchanger in real time and a sensing unit, at least a portion of which is located inside the oil scrubber and includes a third sensing member configured to sense an internal temperature of the oil scrubber.
The syngas generator,
The biomass fluidized bed gasification system further comprising a; a pressure adjusting unit connected to the gas purification unit and controlling the synthesis gas generating device and the fire extinguishing device to maintain a preset pressure under the control of the control unit.
9. The method of claim 8,
When the internal pressure of the temperature rising chamber sensed by the pressure gauge is lower than the internal pressure of the biomass injection unit, the first valve operates so that air and the synthesis gas are introduced into the temperature rising chamber from the biomass injection unit A biomass fluidized bed gasification system, characterized in that it is blocked.
9. The method of claim 8,
The fire extinguishing device includes a nitrogen supply unit connected to the activated carbon reactor;
When the first sensing member detects the oxygen concentration of the activated carbon reactor at a preset temperature of the internal temperature of the activated carbon reactor, the second valve, the third valve, and the fourth valve operate to operate the inside of the activated carbon reactor Blocks the air and the synthesis gas from flowing into the cyclone and the filter unit,
Biomass fluidized bed gasification system, characterized in that the nitrogen supply unit digests the activated carbon reactor as nitrogen is supplied to the activated carbon reactor.
9. The method of claim 8,
When the first sensing member detects the oxygen concentration of the activated carbon reactor, the second sensing member measures the internal temperature of the heat exchanger and the third sensing member measures the internal temperature of the oil scrubber,
When the internal temperature of the heat exchanger and the internal temperature of the oil scrubber rise above a preset temperature, the fourth valve is operated to block air and the synthesis gas from flowing into the filter unit. gasification system.
9. The method of claim 8,
The synthesis gas generator is located between the temperature rising chamber and the oil scrubber, and pressurizes the tar-containing oil supplied from the oil scrubber to an atmospheric pressure chamber for supplying it to the temperature rising chamber; Bio characterized in that it further comprises Mass fluidized bed gasification system.
9. The method of claim 8,
The recycling device is
a tank for accommodating the purified syngas that has passed through the pressure control unit;
an engine for generating electricity by operating the purified syngas supplied from the tank as a fuel;
a combustor for generating steam by operating the purified syngas supplied from the tank as a fuel; and
A biomass fluidized bed gasification system comprising a; a steam turbine generating electricity by operating based on the steam supplied from the combustor.

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