WO2023068454A1 - Système de gazéification de biomasse - Google Patents

Système de gazéification de biomasse Download PDF

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Publication number
WO2023068454A1
WO2023068454A1 PCT/KR2022/001970 KR2022001970W WO2023068454A1 WO 2023068454 A1 WO2023068454 A1 WO 2023068454A1 KR 2022001970 W KR2022001970 W KR 2022001970W WO 2023068454 A1 WO2023068454 A1 WO 2023068454A1
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WIPO (PCT)
Prior art keywords
biomass
gasifier
syngas
activated carbon
tar
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PCT/KR2022/001970
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English (en)
Korean (ko)
Inventor
유정호
강성일
김영운
송재현
Original Assignee
(주)에스지이에너지
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Publication of WO2023068454A1 publication Critical patent/WO2023068454A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/48—Apparatus; Plants
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/48—Apparatus; Plants
    • C10J3/50—Fuel charging devices
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/82—Gas withdrawal means
    • C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/02—Dust removal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/32—Purifying combustible gases containing carbon monoxide with selectively adsorptive solids, e.g. active carbon

Definitions

  • the present invention relates to a biomass gasification system, and more particularly, to a biomass gasification system that removes tar while maintaining the pressure of a gasification device and a purification and recycling device at a predetermined pressure through a bypass unit.
  • biomass energy is a type of renewable energy that is typical of plant photosynthesis of solar energy on a fixed Earth.
  • the fuel gas generated from the gasifier contains tar, a polymeric hydrocarbon.
  • Tar is in a gaseous state at a high temperature of 350 ° C. or higher, but when it is at a low temperature, it aggregates and adheres to various parts such as pipes, causing problems such as clogging.
  • the general biomass fluidized bed gasification system does not effectively remove tar, a by-product inevitably generated in the process of generating syngas, so research and development have been conducted in the direction of reducing the production of tar. Therefore, it is necessary to develop a technology that improves energy efficiency while removing tar more effectively.
  • Patent Document 1 Patent Registration No. 10-1156884 (2012.06.08.)
  • Patent Document 2 Patent Registration No. 10-0782381 (2007.11.29.)
  • An object of the present invention for solving the above problems is to maintain the pressure of the gasification device, the purification and recycling device at a preset pressure by adjusting the internal flow path of the activated carbon reactor through the bypass unit, and mixed with the syngas through the oil scrubber. It is to provide a biomass gasification system that additionally removes heavy metals and tar.
  • Configuration of the present invention for achieving the above object is a supply device in which the biomass is accommodated; a gasifier for generating syn gas using the biomass supplied from the supply device and fluidized sand for activating combustion of the biomass; an air injection device supplying air to the gasification device to activate combustion of the biomass; And a purification and recycling device for removing and purifying impurities contained in the syngas supplied from the gasification device; biomass, characterized in that the gasification device and the purification and recycling device are maintained at a predetermined pressure
  • a gasification system is provided.
  • the supply device a storage cabinet in which the biomass is stored; a transfer unit located inside the storage cabinet; A transfer conveyor, one side of which is located inside the storage cabinet, on which the biomass transported by the transfer unit is seated; and a raw material hopper located outside the storage cabinet and into which the biomass transferred from the transfer conveyor is input, wherein the transfer unit grips the biomass and is positioned on top of the transfer conveyor, wherein the transfer conveyor is It may be characterized in that the biomass is transferred to a raw material hopper.
  • the gasifier may include a gasifier for generating the syngas, biochar as a by-product, and dust by burning the biomass supplied from the raw material hopper using the fluidized sand; a fluidized sand discharge conveyor located at a lower portion of the gasifier and through which the fluidized sand, the biochar, and the dust are introduced from the lower portion of the gasifier; and a vibrating screen for discharging the biochar and the dust transported by the fluidized sand discharge conveyor to the outside, wherein the fluidized sand discharge conveyor transfers the fluidized yarn, the biochar, and the dust to the vibrating screen. It can be characterized by doing.
  • the gasification device has one side located at the bottom of the vibrating screen and the other side located at a predetermined distance from the side of the gasifier, extending in the vertical direction and having a shape bent twice.
  • circulation conveyor ; a fluidized yarn storage hopper located at the bottom of the other side of the fluidized yarn circulation conveyor; and a fluidized yarn input conveyor positioned below the fluidized yarn storage hopper, wherein the fluidized yarn circulation conveyor transfers the fluidized yarn introduced from the vibrating screen to the fluidized yarn storage hopper and inputs the fluidized yarn.
  • the conveyor may supply the fluidized sand introduced from the fluidized sand storage hopper to the side of the gasifier.
  • the refining and recycling device includes an activated carbon reactor for removing heavy metals and tar mixed in the syngas using activated carbon located therein; and a cyclone communicating with the activated carbon reactor to collect the syngas from which the heavy metal and tar are removed, wherein the activated carbon reactor has a first flow path communicating with the gasifier and the cyclone, and the first flow path an 'H'-shaped second flow path communicating with one side and the other side of the activated carbon reactor for removing the heavy metal and tar by reacting the activated carbon with the syngas containing the heavy metal and tar supplied from the gasifier; And activated carbon reaction holes may be formed in the activated carbon reactor communicating with the cyclone to pass the syngas from which the heavy metal and tar are removed through the cyclone.
  • the activated carbon reactor is inserted into the central portion of the first flow passage or separated from the central portion of the first flow passage and introduced from the gasifier, the flow of the synthesis gas mixed with the heavy metal and tar A bypass part for changing the bypass part, wherein the bypass part is formed wider than the cross section of the central part of the first flow passage and is inserted into or separated from the central part of the first flow passage; and a support bar extending upward from the upper end of the bypass.
  • the activated carbon reactor when the gasifier and the purification and recycling device are maintained at a predetermined pressure, the activated carbon reactor is introduced from the gasifier as the bypass is inserted into the central portion of the first flow path.
  • the syngas mixed with heavy metals and tar is circulated through a second flow path and reacted with the activated carbon to remove the heavy metal and tar, and then the heavy metal and tar-removed syngas is discharged to the activated carbon reaction hole.
  • the cyclone may be characterized in that it separates and collects fly ash and dust from the syngas.
  • the purification and recycling apparatus a heat exchanger communicating with the cyclone to exchange heat with the synthesis gas from which the fly ash and dust are removed from the cyclone; and an oil scrubber to additionally remove heavy metals and tar from the syngas heat-exchanged in the heat exchanger
  • the heat exchanger includes: an air-cooled heat exchanger communicating with the cyclone and standing in parallel with the cyclone; and a water-cooled heat exchanger communicating with the air-cooled heat exchanger and the oil scrubber, located below the air-cooled heat exchanger, and standing in parallel with the air-cooled heat exchanger.
  • the purification and recycling device includes a gas purification unit for purifying the syngas supplied from the oil scrubber; and a recycling unit generating electricity by recycling the synthesis gas supplied from the gas purification unit as a heat source.
  • the recycling unit a waste gas incineration facility for incinerating the waste gas supplied from the gas purification unit; An induced blower for supplying syngas to the waste gas incineration facility; a buffer tank for storing the syngas supplied from the gas purification unit; a gas engine blower supplying syngas to the buffer tank; And a gas engine for generating electricity by using the syngas supplied from the buffer tank as a heat source.
  • the air injection device may include a hot air furnace for supplying hot air to the gasifier; a hot air burner located inside the hot air furnace and generating the hot air by mixing and burning light oil with air; and a burner blower supplying air to the hot air burner.
  • the effect of the present invention according to the configuration as described above is to prevent safety accidents due to pressure by maintaining the pressure of the gasification device, the purification and recycling device at a preset pressure by adjusting the internal flow path of the activated carbon reactor through the bypass unit. It is possible to improve energy efficiency by removing heavy metals and tar mixed in syngas through an oil scrubber.
  • FIG. 1 is a conceptual diagram showing a biomass gasification system according to an embodiment of the present invention.
  • FIG. 2 is a conceptual diagram showing a supply device provided in a biomass gasification system according to an embodiment of the present invention.
  • FIG. 3 is a conceptual diagram showing a gasifier provided in a biomass gasification system according to an embodiment of the present invention.
  • FIG. 4 is a conceptual diagram showing an air injection device provided in a biomass gasification system according to an embodiment of the present invention.
  • FIG. 5 is a conceptual diagram showing a purification and recycling device provided in a biomass gasification system according to an embodiment of the present invention.
  • FIG. 6 (a) and (b) are cross-sectional and side views illustrating the activated carbon reactor of FIG. 5 .
  • FIG. 7 (a) and (b) are cross-sectional and side views showing the flow of syngas in FIG. 6 (a) and (b).
  • FIG. 8 is a conceptual diagram illustrating the heat exchanger of FIG. 5 .
  • FIG. 9 is a conceptual diagram illustrating the oil scrubber of FIG. 5 .
  • FIG. 10 is a conceptual diagram illustrating the recycling device of FIG. 1 .
  • the biomass is accommodated supply device; a gasifier for generating syn gas using the biomass supplied from the supply device and fluidized sand for activating combustion of the biomass; an air injection device supplying air to the gasification device to activate combustion of the biomass; And a purification and recycling device for removing and purifying impurities contained in the syngas supplied from the gasification device; characterized in that the gasification device and the purification and recycling device are maintained at a predetermined pressure.
  • FIG. 1 is a conceptual diagram showing a biomass gasification system according to an embodiment of the present invention.
  • a biomass gasification system 500 includes a supply device 100, a gasifier 200, an air injection device 300, and a purification and recycling device 400. And, the gasification device 200 and the purification and recycling device 400 are maintained at a preset pressure.
  • FIG. 2 is a conceptual diagram showing a supply device provided in a biomass gasification system according to an embodiment of the present invention.
  • the supply device 100 receives biomass and supplies the biomass to the gasification device 200 .
  • the supply device 100 for this includes a storage closet 110, a transfer unit 120, a transfer conveyor 130, and a raw material hopper 140, as shown in FIGS. 1 and 2.
  • the storage cabinet 110 is a place where an internal space in which biomass can be stored is formed.
  • the transfer unit 120 is a device located inside the storage closet 110, and can exemplarily hold the biomass like a crane and move it to the top of the transfer conveyor 130.
  • the transfer unit 120 is placed on top of the transfer conveyor 130 after gripping the biomass.
  • One side of the transfer conveyor 130 is located inside the storage closet 110 so that the biomass transported by the transfer unit 120 is seated, and the other side is located above the raw material hopper 140 .
  • the transfer conveyor 130 transfers biomass to the raw material hopper 140 while operating as it extends diagonally upward from one side.
  • the raw material hopper 140 is located outside the storage closet 110 and into which biomass transferred from the transfer conveyor 130 is put.
  • a plurality of conveyors are installed below the raw material hopper 140 as shown in FIG. 2 .
  • the plurality of conveyors supply the biomass to the gasifier 210 to be described later while operating.
  • FIG. 3 is a conceptual diagram showing a gasifier provided in a biomass gasification system according to an embodiment of the present invention.
  • the gasification device 200 generates syn gas by using biomass supplied from the supply device 100 and fluidized sand that activates combustion of the biomass.
  • the gasifier 200 for this purpose includes a gasifier 210, a fluidized sand discharge conveyor 220, a vibrating screen 230, a fluidized sand circulation conveyor 240, a fluidized sand storage hopper 250, and a fluidized sand input conveyor 260. ).
  • the gasifier 210 burns the biomass supplied from the raw material hopper 140 using fluidized sand to produce syngas, biochar as a by-product, and dust.
  • the fluidized sand forms a fluidized bed inside the gasifier 210 after being heated by heat. Accordingly, the fluidized yarn increases the contact area with the biomass introduced into the gasifier 210 so that a combustion reaction can occur actively.
  • the gasifier 210 is formed long in the vertical direction and the inside is empty. In addition, the lower portion of the gasifier 210 becomes narrower as it goes downward.
  • biomass passing through the raw material hopper 140 and supplied by a plurality of conveyors is supplied to one side of the gasifier 210, and fluidized sand is supplied to the other side of the gasifier 210.
  • the above gasifier 210 supplies syngas generated after burning biomass to the activated carbon reactor 410.
  • fluidized sand, biochar, and dust which are by-products generated in the process of burning biomass, are discharged from the lower part of the gasifier 210.
  • the fluidized sand discharge conveyor 220 is located below the gasifier 210, and fluidized sand, biochar, and dust are introduced from the lower part of the gasifier 210.
  • the fluidized sand discharge conveyor 220 operates to transfer the fluidized sand, biochar, and dust to the vibrating screen 230.
  • the vibrating screen 230 discharges biochar and dust transported by the fluidized sand discharge conveyor 220 to the outside.
  • the discharged biochar and dust may be stored in an incombustible ton bag.
  • the vibrating screen 230 transfers the fluidized yarn transferred from the fluidized yarn discharge conveyor 220 to the fluidized yarn circulation conveyor 240.
  • the vibrating screen 230 transfers biochar and dust to the incombustible ton bag, and transfers the fluidized yarn to the fluidized yarn circulation conveyor 240.
  • the fluidized yarn circulation conveyor 240 has one side positioned below the vibrating screen 230 and the other side spaced apart from the side of the gasifier 210 by a predetermined distance, extending in the vertical direction and bent twice.
  • the fluidized yarn circulation conveyor 240 transfers the fluidized yarn introduced from the vibrating screen 230 to the fluidized yarn storage hopper 250.
  • the fluidized yarn storage hopper 250 is located at the bottom of the other side of the fluidized yarn circulation conveyor 240 to store the fluidized yarn transferred from the fluidized yarn circulation conveyor 240 and then supplies the fluidized yarn to the fluidized yarn input conveyor 260.
  • the fluidized sand input conveyor 260 is located below the fluidized sand storage hopper 250 and is disposed parallel to the ground.
  • the fluidized sand feeding conveyor 260 supplies the fluidized sand introduced from the fluidized sand storage hopper 250 to the side of the gasifier 210 .
  • the fluidized sand discharge conveyor 220, the vibrating screen 230, the fluidized sand circulation conveyor 240, the fluidized sand storage hopper 250, and the fluidized sand input conveyor 260 are used to generate biomass inside the gasifier 210. It circulates the fluidized sand that activates the combustion reaction and discharges biochar and dust, which are by-products, to the outside.
  • FIG. 4 is a conceptual diagram showing an air injection device provided in a biomass gasification system according to an embodiment of the present invention.
  • the air injection device 300 activates the combustion of biomass by supplying air to the gasification device 200.
  • the air injection device 300 for this includes a hot air furnace 310, a hot air burner 320, and a burner blower 330, as shown in FIG.
  • the hot stove 310 supplies hot air to the gasifier 210 .
  • a hot air burner 320 is formed inside the hot air furnace 310 for this purpose.
  • the hot air burner 320 is located inside the hot air furnace 310 and generates hot air by mixing and burning light oil with air.
  • the burner blower 330 supplies hot air to the hot air burner 320 .
  • FIG. 5 is a conceptual diagram showing a purification and recycling device provided in a biomass gasification system according to an embodiment of the present invention.
  • the purification and recycling device 400 removes and purifies impurities contained in the syngas supplied from the gasification device 200, and recycles the purified syngas to produce electricity.
  • the purification and recycling device 400 includes an activated carbon reactor 410, a cyclone 420, a heat exchanger 430, an oil scrubber 440, a gas purification unit 450, and a recycling unit 460.
  • FIG. 6 (a) and (b) are cross-sectional and side views illustrating the activated carbon reactor of FIG. 5 .
  • 7 (a) and (b) are cross-sectional and side views showing the flow of syngas in FIG. 6 (a) and (b).
  • Activated carbon reactor 410 removes heavy metals and tar mixed in syngas using activated carbon located inside.
  • the activated carbon reactor 410 for this includes an activated carbon reactor 411, an activated carbon reaction hole 412, a first flow path 413, a second flow path 414, and a bypass unit 415.
  • the activated carbon reactor 411 reacts the syngas containing heavy metals and tar mixed with activated carbon supplied from the gasifier 210 to remove heavy metals and tar.
  • an activated carbon reaction hole 412 is formed in the activated carbon reactor 411 communicating with the cyclone 420 to pass synthesis gas from which heavy metals and tar are removed through the cyclone 420 .
  • a first flow path 413 communicating the gasifier 210 and the cyclone 420 is formed inside the activated carbon reactor 411.
  • An 'H' shaped second flow path 414 communicating with one side and the other side of the first flow path 413 is formed.
  • the first flow path 413 communicates with the activated carbon reaction hole 412 .
  • the first flow path 413 may have an 'L' shape bent once, and the second flow path 414 may have an 'H' shape. .
  • the first flow path 413 and the second flow path 414 communicate with each other.
  • a bypass part 415 may be inserted into the central portion of the first flow path 413 .
  • activated carbon is positioned at the bottom of the second flow path 414 inside the activated carbon reactor 411, as shown in (a) of FIG. 6 and (a) of FIG. 7.
  • the activated carbon reactor 411 is a gasifier as the bypass 415a is inserted into the central portion of the first flow path 413.
  • the synthetic gas mixed with heavy metals and tar introduced from 210 is circulated through the second flow path 414 and reacted with activated carbon to remove heavy metals and tar mixed in the syngas, and then the heavy metals and tar-free syngas are reacted with activated carbon Discharge to hole 412.
  • the bypass part 415 is inserted into the central part of the first flow path 413 or separated from the central part of the first flow path 413 and flows from the gasifier 210. It changes the flow of synthetic gas mixed with heavy metals and tar. .
  • the bypass unit 415 for this includes a bypass 415a and a support bar 415b.
  • the bypass 415a is wider than the cross section of the central portion of the first flow path 413 and is inserted into or separated from the central portion of the first flow path 413 .
  • the support bar 415b extends upward from the upper end of the bypass 415a.
  • the bypass 415a is the first flow path 413 as shown in (a) and (b) of FIG. ), and thus the first flow path 413 is closed by the bypass 415a.
  • the syngas supplied from the gasifier 210 is circulated along the second flow path 414 and reacts with the activated carbon to remove heavy metals and tar.
  • the bypass 415a is the first flow path as shown in (a) and (b) of FIG. 413), and accordingly, the first flow path 413 is opened.
  • the syngas supplied from the gasifier 210 is circulated along the first flow path 413 and the second flow path 414 and reacts with activated carbon to remove heavy metals and tar.
  • both the first flow path 413 and the second flow path 414 are opened to rapidly circulate the syngas, so that the pressure of the gasifier 200 and the purification and recycling device 400 no longer increases.
  • the gasification device 200 and the purification and recycling device 400 can be stably operated.
  • the cyclone 420 communicates with the activated carbon reactor 410 to collect syngas from which heavy metals and tar are removed.
  • the cyclone 420 separates fly ash and dust from the syngas, collects the dust, discharges the activated carbon/dust ton bag, and supplies the fly ash and dust-separated syngas to the heat exchanger 430.
  • FIG. 8 is a conceptual diagram illustrating the heat exchanger of FIG. 5 .
  • the heat exchanger 430 communicates with the cyclone 420 to heat-exchange the synthesis gas from which fly ash and dust are removed from the cyclone 420 .
  • the heat exchanger 430 for this includes an air-cooled heat exchanger 431 and a water-cooled heat exchanger 432 .
  • the air-cooled heat exchanger 431 communicates with the cyclone 420 and stands parallel to the cyclone 420 .
  • the air-cooled heat exchanger 431 heat-exchanges the syngas supplied from the cyclone 420, cools it with air, and supplies it to the water-cooled heat exchanger 432.
  • the water-cooled heat exchanger 432 communicates with the air-cooled heat exchanger 431 and the oil scrubber 440, is located below the air-cooled heat exchanger 431, and stands parallel to the air-cooled heat exchanger 431.
  • the water-cooled heat exchanger 432 heat-exchanges the syngas supplied from the air-cooled heat exchanger 431, cools it with water, and then supplies it to the oil scrubber 440.
  • FIG. 9 is a conceptual diagram illustrating the oil scrubber of FIG. 5 .
  • the oil scrubber 440 additionally removes heavy metals and tar from the syngas heat-exchanged in the heat exchanger 430, and then supplies the syngas from which the heavy metals and tar are removed to the gas purifier 450.
  • the oil scrubber 150 for this includes an oil chamber and an oil spraying member.
  • An oil chamber contains oil.
  • At least a part of the oil injection member is located inside the oil chamber to inject oil toward the syngas.
  • At least a portion of the oil injection member is located from the inner upper part to the inner central part of the oil chamber to inject the oil into the syngas, so that the tar mixed in the syngas is dissolved in the oil.
  • three oil injection members for this purpose are formed, and are arranged to be spaced apart from each other in the vertical direction.
  • the oil scrubber 150 includes at least a first pressure sensing member (the upper part of the oil chamber in FIG. 9) and at least a part of the first pressure sensing member (the upper part of the oil chamber in FIG. and a second pressure sensing member (lower part of the oil chamber in FIG. 9 ) located at the lower inside of the oil chamber and sensing the pressure at the lower inside of the oil chamber in real time.
  • the gas purification unit 450 purifies the syngas supplied from the oil scrubber 440 .
  • the gas purification unit 450 for this includes a STCCD 451 , a first CCDF 452 , a second CCDF 453 , and a third CCDF 454 .
  • FIG. 10 is a conceptual diagram illustrating the recycling device of FIG. 1 .
  • the recycling unit 460 generates electricity by recycling the syngas supplied from the gas purification unit 450 as a heat source.
  • the recycling unit 460 includes a manned blower 461, a gas engine blower 462, a buffer tank 463, a gas engine 464, and a waste gas incineration facility 465.
  • the manned blower 461 supplies syngas to the waste gas incineration facility 465 .
  • the gas engine blower 462 supplies syngas to the buffer tank 463.
  • the gas engine blower 462 for this includes a first gas engine blower 462a and a second gas engine blower 462b.
  • the first gas engine blower 462a supplies syngas to the first buffer tank 463a.
  • the second gas engine blower 462b supplies syngas to the second buffer tank 463b.
  • the buffer tank 463 stores syngas supplied from the gas purification unit 450 .
  • the buffer tank 463 for this includes a first buffer tank 463a and a second buffer tank 463b.
  • the first buffer tank 463a and the second buffer tank 463b store syngas supplied from the third CCDF 454 .
  • the gas engine 464 generates electricity using syngas supplied from the buffer tank 463 as a heat source.
  • the gas engine 464 for this includes a first gas engine 464a and a second gas engine 464b.
  • the first gas engine 464a generates electricity by burning syngas supplied from the first buffer tank 463a.
  • the second gas engine 464b generates electricity by burning syngas supplied from the second buffer tank 463b.
  • the above-described first and second gas engines 464a and 464b supply generated electricity to the supply device 100, the gasifier 200, the air injection device 300, and the gasifier 400 to be utilized as auxiliary power sources. In addition, it is possible to generate additional revenue by supplying electricity to places such as Korea Electric Power Corporation (KEPCO).
  • KEPCO Korea Electric Power Corporation
  • the waste gas incineration facility 465 incinerates the waste gas supplied from the gas purification unit 450 . Accordingly, the fluid generated in the process of incinerating the waste gas in the waste gas incineration facility 465 is discharged through the chimney 10.
  • the pressure of the gasification device, the purification and recycling device is maintained at a preset pressure, thereby preventing safety accidents due to pressure in advance, and the oil scrubber Through this, it is possible to improve energy efficiency by additionally removing heavy metals and tar mixed in syngas.

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Abstract

La présente invention concerne un système de gazéification de biomasse comprenant : un dispositif d'alimentation dans lequel est logée une biomasse ; un dispositif de gazéification qui génère un gaz de synthèse en utilisant la biomasse fournie par le dispositif d'alimentation et du sable fluide pour activer la combustion de la biomasse ; un dispositif d'injection d'air qui active la combustion de la biomasse en fournissant de l'air au dispositif de gazéification ; et un dispositif de purification et de recyclage qui élimine et purifie les impuretés contenues dans le gaz de synthèse fourni par le dispositif de gazéification, le dispositif de gazéification et le dispositif de recyclage étant maintenus à une pression prédéfinie.
PCT/KR2022/001970 2021-10-20 2022-02-09 Système de gazéification de biomasse WO2023068454A1 (fr)

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KR1020210140017A KR102427903B1 (ko) 2021-10-20 2021-10-20 바이오매스 가스화 시스템

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116515511A (zh) * 2023-05-06 2023-08-01 西安交通大学 一种生物质气化综合利用系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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