CN108728143B - Biomass ex-situ catalytic pyrolysis liquefaction system - Google Patents
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
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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
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
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Abstract
The invention relates to the technical field of biomass energy conversion and utilization, in particular to a biomass ex-situ catalytic pyrolysis liquefaction system which comprises a gasification furnace, a riser heater, a rotating cone reactor, a flow guide cyclone reactor, a catalyst regeneration system, a gas-solid separator and a condensation system. The bottom of the gasification furnace is connected with a first biomass feeder, the upper part of the gasification furnace is connected with the lower part of a riser heater, a quartz sand feeder is connected with the lower part of the riser heater, the upper part of the riser heater is connected with an inlet of a quartz sand separator, the lower part of the quartz sand separator is connected with a heated sand box, the heated sand box is connected with an inlet of a rotating cone reactor, an outlet of the rotating cone reactor is connected with an air inlet of a diversion cyclone reactor through a gas phase pipeline, and the diversion cyclone reactor is connected with an upper catalyst box through a catalyst inlet. The method is used for performing the biomass ex-situ catalytic pyrolysis process, is convenient to operate and easy to control, and can be used for adjusting and controlling working condition parameters of the pyrolysis process and the catalytic cracking process respectively.
Description
Technical Field
The invention relates to the technical field of biomass energy conversion and utilization, in particular to a biomass ex-situ catalytic pyrolysis liquefaction system.
Background
Fossil energy currently accounts for over 80% of world primary energy supply, but has restricted the sustainable development of human beings due to non-renewable property and a plurality of environmental problems generated in the process of development and utilization. Therefore, research on new energy becomes an important field of energy development at present, not only can relieve the dependence on fossil energy, but also has great significance on environmental protection and sustainable development of human society, and is an inevitable global trend.
The biomass energy is energy which takes plants with energy value, organic wastes and the like as raw materials, has the characteristics of rich resources, renewability and the like, and is the only renewable energy existing in a physical form at present. Biomass energy is the fourth most consumed energy in the world today, second only to petroleum, coal and natural gas. The biomass catalytic pyrolysis is a leading-edge technology of biomass energy research and development in the world at present, the catalytic action of the catalyst can be utilized to improve the quality of the bio-oil, improve the yield of a target product, reduce the energy consumption in the pyrolysis process, increase the competitiveness of biomass resources and fossil resources, and can directly meet three subjects of 'three agricultural crops' and energy and environment, thereby having important significance.
The currently used biomass catalytic pyrolysis process mainly uses devices including a fixed bed type and a fluidized bed type. The disadvantages of the fixed bed type mainly include the problems of uneven temperature distribution, poor heat transfer, weak raw material processing capacity, incapability of replacing the catalyst and the like; the fluidized bed type has not been widely applied and popularized in biomass catalytic pyrolysis liquefaction process systems due to the problems that the fluidized medium and the catalyst are difficult to separate, the transportation and operation cost of the reverse gravity field is high, and the like. Therefore, it is necessary to design a biomass catalytic pyrolysis liquefaction system which is efficient, energy-saving, high in product yield and easy to realize continuous operation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a biomass ex-situ catalytic pyrolysis liquefaction system.
In order to solve the technical problems, the invention provides the following technical scheme:
a biomass ex-situ catalytic pyrolysis liquefaction system comprises a gasification furnace, a riser heater, a rotating cone reactor, a flow guide cyclone reactor, a catalyst regeneration system, a gas-solid separator and a condensation system.
The bottom of the gasification furnace is connected with a first biomass feeder, the first biomass feeder is connected with a first biomass hopper, the upper part of the gasification furnace is connected with the lower part of the riser heater by a gas phase pipeline, and the quartz sand feeder is connected with the lower part of the riser heater. The upper part of the riser heater is connected with an inlet of the quartz sand separator, the lower part of the quartz sand separator is connected with the heated sand box, and the lower part of the heated sand box is connected with an inlet of the rotary cone reactor. The second biomass feeder is connected with the inlet of the rotating cone reactor, and the second biomass feeder is connected with a second biomass hopper. The outlet of the rotary cone reactor is connected with the air inlet of the diversion cyclone reactor by a gas phase pipeline, the gas phase pipeline supplies air from the side surface of the diversion cyclone reactor, and the gas entering the diversion cyclone reactor performs rotary centrifugal motion.
The upper end of the diversion cyclone reactor is provided with a plurality of catalyst inlets which are connected with the upper catalyst box. The lower part of the diversion cyclone reactor is respectively provided with an exhaust port and a discharge cone. The gas outlet is used for discharging gas products generated by cracking, the gas outlet is connected with the inlet of the gas-solid separator through a gas phase pipeline, and the gas-solid separator is connected with a condensing system. The agent discharging cone is used for discharging the catalyst, and the agent discharging cone is connected with a catalyst regeneration system.
The inside of the diversion cyclone reactor is divided into a mixing main reaction area and a separation side reaction area, the mixing main reaction area is arranged at the upper part of the separation side reaction area, and a guide vane is arranged between the mixing main reaction area and the separation side reaction area. Pyrolysis steam generated by pyrolysis of biomass in the rotating cone reactor is introduced into the diversion cyclone reactor, the relative speed and mutual contact between the pyrolysis steam and the catalyst are enhanced under the action of weak centrifugal force and Cogowski force in the mixed main reaction area, the mass and heat transfer efficiency is high, and the cracking conversion rate is high; under the guide effect of the guide vanes, the gas product can be rapidly separated from the catalyst and the solid product biochar in time due to the different centrifugal forces borne by the separation side reaction zone under the strong rotation effect and the different densities, thereby reducing the occurrence of over-cracking reaction and the coking inactivation of the catalyst and having good catalytic cracking reaction effect.
The catalyst regeneration system comprises a catalyst regenerator, an agent discharging cone is connected with the lower part of the catalyst regenerator, the lower part of the catalyst regenerator is connected with a catalyst cooler, the top of the catalyst regenerator is connected with the lower part of a riser heater through a gas phase pipeline, high-temperature flue gas generated by coking in the catalyst regenerator is introduced into the riser heater, and the device can fully utilize heat generated by coking during catalyst regeneration to heat quartz sand. The bottom of the catalyst regenerator is connected with the top of the catalyst cooler through a gas phase pipeline, and air and the catalyst in the catalyst cooler exchange heat, so that the waste heat of the catalyst can be fully utilized for preheating the air introduced into the catalyst regenerator. The lower part of the catalyst cooler is connected with a second blower and a regenerated catalyst box.
The condensing system condenses the biomass pyrolysis gas product into bio-oil. The condensing system comprises a spray tower, a biochar box is connected to the bottom of a gas-solid separator, the top of the gas-solid separator is connected with the lower portion of the spray tower through a gas-phase pipeline, the top of the spray tower is connected with a tubular cooler through a gas-phase pipeline, the tubular cooler adopts the gas-phase pipeline to sequentially connect a surge tank and a Roots blower, the Roots blower is connected with a gas-mixed surge tank, the gas-mixed surge tank is arranged on a gas inlet pipeline of the gasification furnace, a liquid-phase pipeline is connected with a first bio-oil tank to the bottom of the spray tower, and a liquid-phase pipeline is connected with a second.
For make full use of device waste heat, quartz sand separator upper portion export adopts gaseous phase tube coupling heat exchanger, draught fan in proper order, and the draught fan goes out the air pipe way evacuation, and the heat exchanger links to each other with first air-blower and gas mixing surge tank respectively, and above-mentioned structure make full use of biomass combustion flue gas waste heat preheats for the new trend that the gasifier introduced.
The lower part of the rotating cone reactor is connected with a sand box to be heated, the sand box to be heated is connected with a quartz sand feeder through an ash discharge valve, and quartz sand is recycled.
In order to control the feeding amount of the quartz sand, the lower part of the heated sand box is connected with the inlet of the rotary cone reactor through a quartz sand flow control valve.
In order to control the gas ratio of the catalytic cracking agent, the lower part of the catalyst box is connected with a catalyst inlet of the diversion cyclone reactor through a catalyst flow control valve.
The invention has the following beneficial effects:
1. the biomass ex-situ catalytic pyrolysis process is convenient to operate and easy to control, and working condition parameters can be adjusted and controlled in the pyrolysis process and the catalytic cracking process respectively;
2. the flow-guiding cyclone reactor strengthens the relative speed and mutual contact between pyrolysis gas and the catalyst under the centrifugal force field, has high mass and heat transfer efficiency and high conversion rate, can quickly separate a gas product generated by catalytic reaction from the catalyst and a solid product biochar, reduces the occurrence of over-cracking reaction and coking inactivation of the catalyst, and has good bio-oil quality;
3. the catalytic cracking reaction of the biomass pyrolysis steam and the catalyst and the separation process of the reaction gas-phase product and the catalyst are carried out in the same reactor, so that the process flow is simplified, and the economic cost is saved.
4. The invention can fully utilize the heat of the biomass high-temperature flue gas to heat the quartz sand, has high utilization rate of waste heat in the system, ensures the stable and continuous work of the system, and has high efficiency and low cost.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the top inlet of the cyclone reactor of FIG. 1.
In the figure: 1. a mixed gas pressure stabilizing tank; 2. a gasification furnace; 3-1, a first biomass feeder; 3-2, a second biomass feeder; 4-1, a first biomass hopper; 4-2, a second biomass hopper; 5. a riser tube heater; 6. an induced draft fan; 7. a heat exchanger; 8-1, a first blower; 8-2, a second blower; 9. a quartz sand separator; 10-1, heating a sand box; 10-2, a sand box to be heated; 11-1, quartz sand flow control valves; 11-2, a catalyst flow control valve; 12. a rotating cone reactor; 13. an ash discharge valve; 14. a quartz sand feeder; 15. an exhaust port; 16. a discharging cone; 17. separating the secondary reaction zone; 18. a guide blade; 19. a flow-directing cyclone reactor; 20. a mixed primary reaction zone; 21. an air inlet; 22-1, a catalyst box; 22-2, a regenerated catalyst box; 23. a catalyst regenerator; 24. a catalyst cooler; 25. a gas-solid separator; 26. a charcoal box; 27-1, a first bio-oil tank; 27-2, a second bio-oil tank; 28. a spray tower; 29. a tube nest cooler; 30. a surge tank; 31. a Roots blower; 32. a catalyst inlet.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b):
as shown in fig. 1 and 2, an ex-situ catalytic pyrolysis liquefaction system for biomass comprises a gasification furnace 2, a riser heater 5, a rotating cone reactor 12, a diversion cyclone reactor 19, a catalyst regeneration system, a gas-solid separator 25 and a condensation system.
The bottom of the gasification furnace 2 is connected with a first biomass feeder 3-1, the first biomass feeder 3-1 is connected with a first biomass hopper 4-1, the upper part of the gasification furnace 2 is connected with the lower part of a riser heater 5 by a gas phase pipeline, a quartz sand feeder 14 is connected with the lower part of the riser heater 5, and the quartz sand feeder 14 is a screw feeder. The upper part of the riser heater 5 is connected with an inlet of a quartz sand separator 9, the lower part of the quartz sand separator 9 is connected with a heated sand box 10-1, and the lower part of the heated sand box 10-1 is connected with an inlet of a rotating cone reactor 12. The second biomass feeder 3-2 is connected with the inlet of the rotating cone reactor 12, and the second biomass feeder 3-2 is connected with the second biomass hopper 4-2.
As shown in FIG. 2, the outlet of the rotating cone reactor 12 is connected with the gas inlet 21 of the flow guiding cyclone reactor by a gas phase pipeline, and the gas inlet 21 feeds gas from the side of the flow guiding cyclone reactor 19. The lower part of the rotating cone reactor 12 is connected with a sand box 10-2 to be heated, the sand box 10-2 to be heated is connected with a quartz sand feeder 14 through an ash discharge valve 13, and quartz sand is recycled.
The upper end of the diversion cyclone reactor 19 is provided with four catalyst inlets 32, and is connected with the upper catalyst tank 22-1 through the catalyst inlets 32. The lower part of the diversion cyclone type reactor 19 is respectively provided with an exhaust port 15 and an agent discharging cone 16. The exhaust port 15 is used for discharging cracked gas products, the exhaust port 15 is connected with the inlet of the gas-solid separator 25 through a gas phase pipeline, and the gas-solid separator 25 is connected with a condensing system. The agent discharging cone 16 is used for discharging the catalyst, and the agent discharging cone 16 is connected with a catalyst regeneration system.
The interior of the flow-guiding cyclone reactor 19 is divided into a mixing main reaction zone 20 and a separation secondary reaction zone 17, the mixing main reaction zone 20 is arranged at the upper part of the separation secondary reaction zone 17, and a guide vane 18 is arranged between the mixing main reaction zone 20 and the separation secondary reaction zone 17.
The catalyst regeneration system comprises a catalyst regenerator 23, an agent discharging cone 16 is connected with the lower part of the catalyst regenerator 23, the lower part of the catalyst regenerator 23 is connected with a catalyst cooler 24, the top of the catalyst regenerator 23 is connected with the lower part of a riser heater 5 through a gas phase pipeline, and high-temperature flue gas generated by coking in the catalyst regenerator 23 is introduced into the riser heater 5. The bottom of the catalyst regenerator 23 and the top of the catalyst cooler 24 are connected by a gas phase line, and air exchanges heat with the catalyst in the catalyst cooler 24. The lower portion of the catalyst cooler 24 is connected to the second blower 8-2 and the regenerated catalyst tank 22-2.
The condensing system condenses the cracked gas product into bio-oil. The condensation system comprises a spray tower 28, the bottom of a gas-solid separator 25 is connected with a charcoal box 26, the top of the gas-solid separator 25 is connected with the lower part of the spray tower 28 through a gas-phase pipeline, the top of the spray tower 28 is connected with a tubular cooler 29 through a gas-phase pipeline, the tubular cooler 29 is sequentially connected with a pressure stabilizing tank 30 and a Roots blower 31 through the gas-phase pipeline, the Roots blower 31 is connected with a gas-mixed pressure stabilizing tank 1, the gas-mixed pressure stabilizing tank 1 is arranged on a gas inlet pipeline of a gasification furnace 2, the bottom of the spray tower 28 is connected with a first bio-oil tank 27-1 through a liquid-phase pipeline, and the bottom of the tubular cooler 29 is connected with a.
In order to fully utilize the waste heat of the device, the outlet at the upper part of the quartz sand separator 9 is sequentially connected with a heat exchanger 7 and an induced draft fan 6 by adopting a gas phase pipeline, the air outlet pipeline of the induced draft fan 6 is emptied, and the heat exchanger 7 is respectively connected with a first air blower 8-1 and a gas mixing pressure stabilizing tank 1.
The lower part of the heated sand box 10-1 is connected with the inlet of the rotary cone reactor 12 through a quartz sand flow control valve 11-1.
The lower part of the catalyst box 22-1 is connected with a catalyst inlet 32 of the diversion cyclone type reactor through a catalyst flow control valve 11-2.
The reaction process of biomass catalytic pyrolysis by using the method comprises the following steps:
biomass raw materials are combusted in a gasification furnace 2 to generate high-temperature flue gas, the high-temperature flue gas is introduced into a riser heater 5 to heat lifted quartz sand, the quartz sand and the flue gas enter a quartz sand separator 9 from the top of the riser heater, the quartz sand enters a heated quartz sand box 10-1 from the bottom of the quartz sand separator 9, the quartz sand and the flue gas enter a rotating cone reactor 12 under the regulation of a quartz sand flow control valve 11-1 along the gravity, biomass enters the rotating cone reactor 12 through a second biomass feeder 3-2, the rotating cone reactor 12 moves the biomass by using centrifugal force, a mixture of biomass particles and excessive heat-carrying sand is spirally conveyed upwards along a hot cone wall, and the biomass is pyrolyzed. The quartz sand flows into a sand box 10-2 to be heated below the rotating cone reactor after reaction, and after ash is removed through an ash discharge valve 13, the quartz sand is re-fed into the bottom of a riser pipe heater 5 through a quartz sand feeder 14 to be recycled. And the purified high-temperature flue gas at the top of the quartz sand separator 9 exchanges heat with air and then is discharged, and the heated air is introduced into the gasification furnace 2.
Pyrolysis steam generated by biomass pyrolysis in the rotating cone reactor 12 is introduced into the diversion cyclone reactor 19, the relative speed and mutual contact between the pyrolysis steam and the catalyst are enhanced under the action of weak centrifugal force and Coriolis force of the mixed main reaction zone 20, under the diversion action of the guide vanes 18, centrifugal force is different due to different densities in the separation side reaction zone 17 under the action of strong rotation, and gas products can be rapidly separated from the catalyst and solid products biochar in time. The reacted catalyst is burnt and regenerated in the catalyst regenerator 23, and the air exchanges heat with the catalyst in the catalyst cooler 24, so that the waste heat of the catalyst is fully utilized to preheat the air introduced into the catalyst regenerator 23. The high temperature flue gas generated by the coke burning in the catalyst regenerator 23 is introduced into the riser heater 5. The reacted gas product is purified by a gas-solid separator 25 and then enters a spray tower 28 to be condensed into bio-oil, and the uncondensed gas is further cooled into liquid bio-oil, and then the gas substance is conveyed back to the gasification furnace 2 through the gas mixing pressure stabilizing tank 1.
Claims (7)
1. A biomass ex-situ catalytic pyrolysis liquefaction system comprises a gas-solid separator and a condensation system, and is characterized by further comprising a gasification furnace, a riser heater, a rotary cone reactor, a diversion cyclone reactor and a catalyst regeneration system, wherein the bottom of the gasification furnace is connected with a first biomass feeder, the first biomass feeder is connected with a first biomass hopper, the upper part of the gasification furnace is connected with the lower part of the riser heater through a gas phase pipeline, a quartz sand feeder is connected with the lower part of the riser heater, the upper part of the riser heater is connected with an inlet of a quartz sand separator, the lower part of the quartz sand separator is connected with a heated sand box, the lower part of the heated sand box is connected with an inlet of the rotary cone reactor, a second biomass feeder is connected with an inlet of the rotary cone reactor, the second biomass feeder is connected with a second biomass hopper, an outlet of the rotary cone reactor is connected with an air inlet of the diversion cyclone reactor through, the gas phase pipeline supplies gas from the side surface of the diversion cyclone reactor, a plurality of catalyst inlets are arranged at the upper end of the diversion cyclone reactor and are connected with an upper catalyst box through the catalyst inlets, an exhaust port and a reagent discharging cone are respectively arranged at the lower part of the diversion cyclone reactor, the exhaust port is connected with the inlet of a gas-solid separator through a gas phase pipeline, the gas-solid separator is connected with a condensing system, the reagent discharging cone is connected with a catalyst regeneration system, the inside of the diversion cyclone reactor is divided into a mixing main reaction zone and a separation auxiliary reaction zone, the mixing main reaction zone is arranged at the upper part of the separation auxiliary reaction zone, and a guide blade is arranged between the mixing main reaction zone and the separation auxiliary reaction.
2. The biomass ex-situ catalytic pyrolysis liquefaction system of claim 1, wherein the catalyst regeneration system comprises a catalyst regenerator, the agent discharging cone is connected with the lower part of the catalyst regenerator, the lower part of the catalyst regenerator is connected with a catalyst cooler, the top of the catalyst regenerator and the lower part of the riser heater are connected by a gas-phase pipeline, the bottom of the catalyst regenerator and the top of the catalyst cooler are connected by a gas-phase pipeline, and the lower part of the catalyst cooler is connected with a second blower and a regenerated catalyst box.
3. The system for the ex-situ catalytic pyrolysis and liquefaction of biomass as claimed in claim 1 or 2, wherein the condensing system comprises a spray tower, the bottom of the gas-solid separator is connected with the charcoal box, the top of the gas-solid separator is connected with the lower part of the spray tower through a gas-phase pipeline, the top of the spray tower is connected with a tubular cooler through a gas-phase pipeline, the tubular cooler is sequentially connected with a pressure stabilizing tank and a Roots blower through a gas-phase pipeline, the Roots blower is connected with a gas-mixed pressure stabilizing tank, the gas-mixed pressure stabilizing tank is arranged on an air inlet pipeline of the gasification furnace, the bottom of the spray tower is connected with the first bio-oil tank through a liquid-phase pipeline, and the bottom of the tubular.
4. The biomass ex-situ catalytic pyrolysis liquefaction system of claim 3, wherein an outlet at the upper part of the quartz sand separator is sequentially connected with a heat exchanger and an induced draft fan by adopting a gas phase pipeline, an air outlet pipeline of the induced draft fan is evacuated, and the heat exchanger is respectively connected with the first air blower and the gas-mixed pressure stabilizing tank.
5. The biomass ex-situ catalytic pyrolysis liquefaction system of claim 1, wherein the lower part of the rotating cone reactor is connected with a sand box to be heated, and the sand box to be heated is connected with a quartz sand feeder through an ash discharge valve.
6. The biomass ex situ catalytic pyrolysis liquefaction system of claim 1, wherein the lower portion of the heated sand box is connected to the inlet of the rotary cone reactor through a quartz sand flow control valve.
7. The system for the ex-situ catalytic pyrolysis liquefaction of biomass according to claim 1, wherein the lower part of the catalyst tank is connected with a catalyst inlet of the diversion cyclone reactor through a catalyst flow control valve.
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| CN203593729U (en) * | 2013-09-09 | 2014-05-14 | 山东理工大学 | Heat carrier self-circulating heating type pyrolysis liquefaction system for forestry and agricultural residues |
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