CN102776007B - Continuous biomass pyrolytic carbon gas-oil poly-generation system - Google Patents

Continuous biomass pyrolytic carbon gas-oil poly-generation system Download PDF

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CN102776007B
CN102776007B CN2012102419557A CN201210241955A CN102776007B CN 102776007 B CN102776007 B CN 102776007B CN 2012102419557 A CN2012102419557 A CN 2012102419557A CN 201210241955 A CN201210241955 A CN 201210241955A CN 102776007 B CN102776007 B CN 102776007B
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pyrolysis
gas
unit
coke
moving
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CN2012102419557A
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CN102776007A (en
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陈汉平
陈应泉
杨海平
王贤华
张世红
李斌
刘标
李开志
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华中科技大学
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/129Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Abstract

The invention discloses a continuous biomass pyrolytic carbon gas-oil poly-generation system. The continuous biomass pyrolytic carbon gas-oil poly-generation system comprises a pyrolysis unit, a condensation unit, a purifying unit, a gas storage unit and a heating unit, wherein the pyrolysis unit is connected with the condensation unit and the heating unit; the gas storage unit is connected with the purifying unit and the heating unit respectively; the condensation unit is connected with a gas storage unit pipeline by the purifying unit; high-temperature smoke gas is generated by the heating unit; the pyrolysis unit performs thermal conversion from biomass into a carbon gas oil product by heat energy generated by high-speed scouring of high-temperature smoke gas and coke is separately stored; bio-oil and gas are separated from carbon gas oil by the condensation unit; impurities in the fuel gas are removed by the purifying unit; and the gas subjected to the impurity removal is stored by the gas storage unit. With the adoption of the continuous biomass pyrolytic carbon gas-oil poly-generation system, targets of continuously producing biogas, a biological coke and bio-oil are realized, so that the product quality is stable, and the application prospect is wide.

Description

A kind of continuous biomass pyrolytic carbon gas and oil polygenerations systeme
Technical field
The present invention relates to the biomass pyrolytic polygenerations systeme, being applicable to continuous is the high-valued products such as charcoal, G&O by Wood Adhesives from Biomass.
Background technology
The vital task of new countryside construction is the construction of new rural energy system, and adopting modern technologies comprehensively, efficiently to utilize the abundant biomass resource in Rural areas has been one of important means of this task.Modern biomass are utilized technology, such as combustion power generation, gasifying electricity generation or gas processed etc. have all been utilized in Rural areas, but the distinctive defect of biomass resource---resource distribution is wide, energy resource density is low, collection is difficult, cause take at present single product as main, move biomass in large scale and utilize technology to be difficult to meet the requirement of new rural energy construction.The biomass multi-production technology can be produced high-valued biological flue gas, biological coke, wood tar oil and wood vinegar simultaneously, and economic benefit significantly improves; Utilize scale moderate, be in suitable raw material capture range.Based on above advantage, the biomass multi-production technology receives people's concern day by day.
At present the domestic biomass multi-production technology that is applicable to Rural areas is to take fixed bed retort technology that patent " discarded plant is produced the method for combustible gas, charcoal and tar " that application number is 93110113.1 develops for source as main.This technology is that the biomass material of compressed moulding is put into to the retort that can completely cut off air, provide external heat source by process furnace for retort, thereby the biomass in still absorb heat is converted into the carbon in raw material, protium the mixed combustible gas bodies such as hydrogen, methane, carbon monoxide, produces biological coke, wood tar oil and wood vinegar simultaneously.Because this technology can be brought high heating value, clean combustion gas for the peasant, can bring biological coke, wood vinegar and the wood tar oil that added value is very high to operator simultaneously, the economic benefit significantly increased allows this technology obtain effective popularization in vast Rural areas in China, the development of the bio-energy industry of having made greater efforts to promote.
But fixed bed retort technology comes with some shortcomings: batch production, and material is placed on heat absorption in retort, decomposition, the process such as cooling all completes in fixed bed, from heating up, the combustion gas preparation needs to the cooling of coke the working time that experience is longer again; The inequality of being heated, guarantee that the feed rate of combustion gas in working time causes retort to have larger diameter, and heat passes to the stove center and need to experience for a long time from furnace wall, and biomass material is heated inhomogeneous, and degree of pyrolysis differs, and causes the coke product quality to differ; The combustion gas quality is not high, in biomass pyrolysis process, can produce a large amount of carbon monoxide, and general content can reach 15%, and the combustion gas user is brought to potential security risk; There is the risk of secondary pollution, batch production causes the output of wood vinegar and wood tar oil can not meet the requirement of deep-processing factory, effectively do not process, will certainly form the pollution of product liquid to Rural areas, this external system initial operating stage, produce a large amount of carbonic acid gas and carbon monoxide directly emptying, have the possibility to topsoil.Such as above deficiency, fixed bed retort technology is difficult to further promote the development of bio-energy industry, and what at first biomass multi-production technology of future generation will realize is exactly continous way production.
Summary of the invention
The object of the invention is to overcome the weak point of fixed bed retort technology, propose a kind of continuous biomass moving bed pyrolysis polygenerations systeme, can be continuous prepare coke and liquid product.
A kind of continuous biomass moving bed pyrolysis polygenerations systeme, comprise pyrolysis unit, condensing unit, clean unit, gas storage unit and heating unit, pyrolysis unit connects respectively condensing unit and heating unit, the gas storage unit connects respectively clean unit and heating unit, and condensing unit is connected with the gas storage unit pipe by clean unit; Heating unit produces high-temperature flue gas, pyrolysis unit the heat provided is provided at a high speed by high-temperature flue gas biomass thermal is converted into to charcoal gas and oil product Separate Storage coke, condensing unit is isolated bio oil and combustion gas and is stored bio oil from charcoal gas and oil product, clean unit is removed the impurity in combustion gas, and the combustion gas after impurity is removed in the storage of gas storage unit.
Further, described pyrolysis unit comprises for hotflue, and the residual heat drying stove, feeding machine, material distributing machine, feeding warehouse, pyrolysis moving-bed, activation furnace, coke air cooling chamber, coke water cold house and the coke discharging bin that directly are communicated with successively, the pyrolysis moving-bed is positioned at for hotflue.
Further, described pyrolysis moving-bed comprises axially many row moving bed pyrolysis pipe and the pyrolysis gas collector vertical with the sweep of gases direction, and the adjacent moving bed pyrolysis pipe on the sweep of gases direction is arranged in the dislocation mode; The pyrolysis gas spillway is offered on the top of moving bed pyrolysis pipe, and the pyrolysis gas spillway is arranged in the pyrolysis gas collector, and the pyrolysis gas collector does not contact with the pyrolysis gas spillway.
Further, describedly for hotflue, comprise by a plurality of flue gases and be folded to the flue cavity that case joins up and down and forms; Part beyond the top of moving bed pyrolysis pipe is placed in the flue cavity, in the bottom of flue cavity, is provided with hot gas approach, and at the internal layout smoke deflector of inlet mouth, the top layout exhanst gas outlet of flue cavity; Adjacent flue gas is folded between case and is provided with buffler, and a plurality of bufflers form the reciprocating and turning-back structure with to the flue gas guiding, offer the hole of guaranteeing that the moving bed pyrolysis pipe passes on buffler, and moving bed pyrolysis pipe outer wall does not directly contact with buffler.
Further, described activation furnace comprises activator dispersing chamber and a plurality of coke activating chamber, each activating chamber directly is connected with the bottom of row's moving bed pyrolysis pipe of pyrolysis moving-bed, offer the activator spout in the both sides of coke activating chamber, each side activator spout directly is connected with the activator dispersing chamber, also is provided with the activator entrance on the activator dispersing chamber.Biomass multi-production system of the present invention allows biomass material experience successively depth drying, pre-charing, degree of depth pyrolysis, activation, the process such as cooling in the pyrolysis moving-bed, continuous is coke product by Wood Adhesives from Biomass, simultaneously by condensation cleaning mode that can continuous operation, isolate the bio oil products such as heavy tar, tar light oil, vinegar liquid, and combustible gas.Outside heat-supplying mode by special, can make the biomass material thermally equivalent, guarantees the good and stability of product quality.By appropriate activation method, can obtain the coke product of different application purpose.
Specifically, the present invention's advantage compared to existing technology is:
1. native system has adopted the very large moving-bed of length-to-diameter ratio, and biomass can absorb faster heat pyrolysis in moving-bed, have significantly shortened the production required time, have reached the requirement of consecutive production;
2. in pyrolytic process, mainly rely on the gravity of biomass material self to move the continuous of realization production, there is no complicated mechanical movement device in the high temperature pyrolysis district, the continuous serviceability of system is high;
3. adopt the mode of fractional condensation, allow the condensation at can smooth and easy mobile temperature of heavy tar and tar light oil, in condensation process, avoided tar to stop up condensation pipe, further lifting system continuity reliability of operation;
4. the mode that adopts high-temperature flue gas to wash away is at a high speed carried out outside heat supply, and heating efficiency is high;
5. industrial scale gets final product by the number of increase and decrease moving bed pyrolysis pipe, and the adaptability of technology is wide, and scale is easy to control;
6. by the strict temperature range of controlling condensing unit, classification obtains different product liquids, further promotes the utility value of product liquid, has reduced the possibility that secondary pollution causes;
7. further, be provided with the residual heat drying stove in the native system pyrolysis unit, the waste heat that many places are produced, for the oven dry of material, effectively utilizes the heat of the cooling release of coke, and energy utilization rate is high; And activation furnace, by filling into activator, can provide the system pyrolysis required heat, can obtain the activated charcoal that absorption property is higher simultaneously, can also produce the charcoal product for other purposes except producing the fuel charcoal, promoted the economy of system.
The accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of continuous biomass moving bed pyrolysis polygenerations systeme of the present invention;
Fig. 2 supplies the structural representation of hotflue and a kind of embodiment of pyrolysis moving-bed in Fig. 1;
Fig. 3 is A-A sectional view in Fig. 2;
Fig. 4 is B-B sectional view in Fig. 2;
Fig. 5 is C-C sectional view in Fig. 4;
Fig. 6 is the structural representation of coke activation furnace;
Fig. 7 is D-D sectional view in Fig. 6.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done further and describes in detail.
Continuous biomass moving bed pyrolysis polygenerations systeme of the present invention, comprise pyrolysis unit, condensing unit, clean unit, gas storage unit and heating unit, pyrolysis unit connects respectively condensing unit and heating unit, the gas storage unit connects respectively clean unit and heating unit, and condensing unit is connected with the gas storage unit pipe by clean unit; Heating unit produces heat, pyrolysis unit absorbs heat biomass thermal is converted into to charcoal gas and oil product Separate Storage coke, condensing unit is isolated bio oil and combustion gas and is stored bio oil from charcoal gas and oil product, clean unit is removed the impurity in combustion gas, and the combustion gas after impurity is removed in the storage of gas storage unit.
Fig. 1 provides system concrete structure schematic diagram of the present invention, and continuous biomass moving bed pyrolysis polygenerations systeme structure is:
Pyrolysis unit comprises successively directly connected residual heat drying stove 1, feeding machine 2, material distributing machine 3, feeding warehouse 4, pyrolysis moving-bed 6, activation furnace 21, coke air cooling chamber 22, coke water cold house 23 and coke discharging bin 24, and, for hotflue 5, pyrolysis moving-bed 6 is positioned at for hotflue 5.In order to give coke air cooling chamber 22 supply cooling airs, can set up air-blaster 20 and with coke air cooling chamber 22 pipelines.In order to give coke water cold house supply cold water, can set up tank 26 and water circulating pump 25, tank 26 pipelines connect coke water cold house 23.
Pyrolysis moving-bed 6 is used to the reaction compartment that biomass pyrolysis process provides starvation, moving-bed cross section at present used is larger, inner heat exchange is inhomogeneous, the present invention has provided a kind of optimizing structure, as shown in Figures 4 and 5, pyrolysis moving-bed 6 comprises the axially many row moving bed pyrolysis pipe 31 vertical with sweep of gases direction (horizontal direction), and the adjacent moving bed pyrolysis pipe on the sweep of gases direction is arranged in the dislocation mode.Pyrolysis gas spillway 36 is offered on the top of every moving bed pyrolysis pipe 31.Pyrolysis gas spillway 36 is arranged in pyrolysis gas collector 35, and pyrolysis gas collector 35 does not contact with pyrolysis gas spillway 36, and keeps enough spaces.In each moving bed pyrolysis pipe 31 that enters pyrolysis moving-bed 6 that biomass material is regular, the heat that absorbs the sweep of gases transmission decomposes gradually, and bottom shifting to from the top of pyrolysis moving-bed 6 slowly, the pyrolysis gas produced flows from bottom to top in moving bed pyrolysis pipe 31, after reaching moving bed pyrolysis pipe 31 tops, enter into the pyrolysis gas collector 35 of pyrolysis moving-bed 6 from pyrolysis gas spillway 36, finally from pyrolysis gas outlet 33, enter into follow-up equipment.
For hotflue 5, be used to biomass pyrolysis process that heat is provided, can adopt the indirect heat exchange modes such as high-temperature flue gas radiation, natural convection, heat conduction, the present invention has provided a kind of optimizing structure, as shown in Figures 2 and 3, comprise by a plurality of flue gases and be folded to the flue cavity that case 29 vertically is connected to form for hotflue 5, part beyond the top of moving bed pyrolysis pipe 31 is placed in the flue cavity, is provided with hot gas approach 28 in the bottom of flue cavity, and arranges smoke deflector 34 in the passage of inlet mouth 28.Adjacent flue gas is folded between case 29 and is provided with buffler 30, and a plurality of bufflers 30 form the reciprocating and turning-back structure so that flue gas is led.More particularly, one end of buffler 30 and flue cavity one straight wall connect in succession and seal, the other end and another sidewall of flue cavity form enough gaps, offer hole on buffler 30 and guarantee that moving bed pyrolysis pipe 31 can pass through, flue cavity top layout exhanst gas outlet 32.Part beyond the top of moving bed pyrolysis pipe 31 with form for hotflue 5 together with buffler 30, flue gas are folded to case 29, moving bed pyrolysis pipe 31 outer walls directly contacts with buffler 30, and the enough little gap of maintenance.The guide effect of hot flue gas smoke deflector 34 in smoke air inlet 28, be washed into uniformly on moving bed pyrolysis pipe 31, process flue gas dividing plate 30 and flue gas are folded to the guide functions of case 29 again, repeatedly turn back and wash away moving bed pyrolysis pipe 31, guarantee that heat fully passes to the biomass material of moving bed pyrolysis pipe 31, and form the differing temps interval of biomass reactions from bottom to top, the complete flue gas that dispels the heat is pooled to exhanst gas outlet 32 again, and the waste heat flue gas finally is sent in residual heat drying stove 1 for material drying.
Coke activation furnace 21 is for further activating biomass coke after pyrolysis, to obtain the gac of better pore characteristic, activation furnace mostly is fixed bed at present, in order to be mated with pyrolysis moving-bed 6, the present invention has provided a kind of structure, as shown in Figures 6 and 7, the structure of coke activation furnace 21 is: the groundwork unit is coke activating chamber 37, each activating chamber directly is connected and seals with the bottom of row's moving bed pyrolysis pipe 31 of pyrolysis moving-bed 6, offer number row activator spout 40 in the both sides of coke activating chamber 37, the all activator spouts 40 of each side directly are connected and seal with activator dispersing chamber 39, also be provided with activator entrance 38 sealing on activator dispersing chamber 39, activator entrance 38 passes through.Activator through preheating enters in coke activation furnace 21 from activator entrance 38, and the guide functions of process activator dispersing chamber 39 enters coke activating chamber 37 uniformly from each activator spout 40.The biological coke temperature that enters into coke activation furnace 21 from pyrolysis moving-bed 6, up to 600 ℃, after activator contacts, in the effect of coke surface generating unit divided combustion, has promoted the temperature of coke itself, realizes the deep activation of coke.
Residual heat drying stove 1 is countercurrent flow formula cylinder interchanger, and feeding machine 2 can be the tipping bucket type crane, and air preheater 18 is tubular heat exchanger.Coke air cooling chamber 22 is indirect heat exchanger, and coke is in pipe, and air, at shell, lays heat exchange fin outside pipe.Coke water cold house 23 is indirect heat exchanger, and coke is in pipe, and water coolant, at shell, lays heat exchange fin outside pipe.
Condensing unit comprises heavy tar condensing tower 7, heavy tar collecting tank 8, tar light oil condensing tower 9, tar light oil collecting tank 10, vinegar liquid spray condensing tower 11, vinegar liquid collecting tank 12 and water pump 13.Heavy tar condensing tower 7, tar light oil condensing tower 9, vinegar liquid spray condensing tower 11 pipeline successively connect; Heavy tar condensing tower 7 pipelines connect heavy tar collecting tank 8, and tar light oil condensing tower 9 pipelines connect tar light oil collecting tank 10, and vinegar liquid spray condensing tower 11 is connected to form circulation loop with vinegar liquid collecting tank 12, water pump 13 pipeline successively.
Heavy tar condensing tower 7, tar light oil condensing tower 9 can adopt the shell-and-tube indirect heat exchanger.Heavy tar condensing tower 7 tube side inlet pipelines connect the pyrolysis gas outlet 33 of pyrolysis moving-bed 6, and the tube side outlet conduit connects the tube side import of tar light oil condensing tower 9; Heavy tar condensing tower 7 shell side inlet pipelines connect the exhanst gas outlet 32 for hotflue 5, and the shell side outlet conduit connects residual heat drying stove 1; Adopt low-temperature flue gas and pyrolysis gas to carry out indirect heat exchange, be in order to allow heavy tar condensing tower 7 operate in 150-180 degree centigrade, at this temperature, the heavy component in pyrolysis gas becomes sustainable mobile drop at in-tube condensation, and do not cause the obstruction of prolong, guarantee the continuity of producing.Tar light oil condensing tower 9 tube side outlet conduits connect vinegar liquid spray condensing tower 11 entrances; Tar light oil condensing tower 9 shell side inlet pipelines connect the 23 shell side outlets of coke water cold house, and the hot water flowed out from the 9 shell side outlets of lightweight tar condensing tower can be for the resident; Adopting the warm water and the pyrolysis gas that have absorbed heat to carry out indirect heat exchange, is in order to allow tar light oil condensing tower 9 operate in 80-100 degree centigrade, and at this temperature, the light component in pyrolysis gas can continue to be condensed into drop in pipe.
Vinegar liquid spray condensing tower 11 is a kind of direct condensing mode commonly used, mainly comprise shower nozzle, condensed fluid inlet and outlet piping, treat the inlet and outlet piping that heat of condensation is vented one's spleen; Pyrolysis gas upwards flows from the condensing tower bottom, with the atomizing droplet from the shower nozzle ejection, contact, thereby realization is cooling rapidly, in order to moisture and the acetic acid in a large amount of phlegma gas.
Clean unit adopts combustion gas upgrading and filtration tank 14, and the inlet pipeline of combustion gas upgrading and filtration tank 14 connects the outlet of vinegar liquid spray condensing tower 11, and outlet connects the entrance of gas storage unit.Combustion gas upgrading and filtration tank 14 can adopt chemical industry packing tower commonly used, and impure pyrolysis gas is by the packing area of packing tower, the separation of impurity in the process implementation combustion gas such as the filtration by the packing area filler, absorption.
The gas storage unit comprises induced draft fan 15 and the gas storage holder 16 that pipeline connects, and the inlet duct of induced draft fan 15 connects combustion gas upgrading and filtration tank 14, and outlet connects heating unit.
Heating unit comprises air preheater 18 and the settling chamber 19 that pipeline connects, and air preheater 18 is connected with coke air cooling chamber 22 pipelines by coupling cock 27.Air preheater 18 adopts shell-and-tube heat exchanger, and the tube side inlet pipeline connects the outlet of gas blower 17, and the tube side outlet conduit connects the gas inlet of settling chamber 19, and the shell side inlet pipeline connects the 22 shell side outlets of coke air cooling chamber, and the shell side outlet conduit connects residual heat drying stove 1.The combustion cavity that settling chamber 19 adopts refractory brick to be built into, can adopt commercial gas burner to realize the mixed firing of air and geseous fuel.
Between the air outlet of pyrolysis moving-bed 6 and heavy tar condensing tower 7 inlet mouths, between heavy tar condensing tower 7 air outlets and tar light oil condensing tower 9, between tar light oil condensing tower 9 air outlets and vinegar liquid spray condensing tower 11 inlet mouths, all adopt the pipeline that lays thermal insulation layer to connect.Thermal insulation layer makes the product liquid condensation rest in pipeline and causes line clogging for preventing heat dissipation of pipeline, can adopt the materials such as quartzy insulating cotton.In whole system, all pipeline junctions all keep sealing.
System work process of the present invention is: by feeding machine 2, dried shaping raw material or particulate material are delivered to material distributing machine 3, dispensing through material distributing machine 3, biomass material is assigned in each moving bed pyrolysis pipe uniformly, the gravity of the interior dependence of pyrolysis moving-bed 6 self that biomass material is very large in length-to-diameter ratio is continuous moving from top to bottom, the material that the mode of washing away at a high speed while for hotflue 5, by high-temperature flue gas, flowing through the Zigzag type flue is pyrolysis moving-bed 6 interior continuous movings provides pyrolysis institute heat requirement, makes material can carry out continuously the processes such as depth drying, pre-charing, pyrolysis.In this simultaneously, the pyrolysis gas that pyrolysis produces, against the biomass material travel direction, flows from bottom to top, the heat discharged in pyrolytic process is passed to the material of upper end simultaneously.Strengthening and the taking full advantage of of internal heat of outside heat supply can make biomass absorb faster heat in moving-bed, and then significantly shorten and produce required time.The pyrolysis gas that each moving bed pyrolysis pipe produces collects in pyrolysis gas collector 35, enters into heavy tar condensing tower 7 through air outlet.The pyrolysis gas outlet temperature is 200 degrees centigrade, and heavy tar condensing tower 7 operating temperatures are 150-180 degree centigrade, and the high condensation point tar in pyrolysis gas is condensed into liquid that can continuous flow and is pooled to the interior storage of heavy tar collecting tank 8 at this.Remaining pyrolysis gas enters into the tar light oil condensing tower 9 that operating temperature is 80-100 degree centigrade, and tar light oil is in this condensation, and by tar light oil collecting tank 10 storages.Pyrolysis gas enters into the vinegar liquid spray column 11 that operating temperature is envrionment temperature again, the direct condensing mode that spraying by circulation vinegar liquid produces, make remaining moisture and the condensation of small molecules acid in pyrolysis gas, vinegar liquid enters into vinegar liquid collecting tank 12, and can be recycled to be pumped in vinegar liquid spray column after cooling becomes heat-eliminating medium.Not condensation inflammable gas enters combustion gas upgrading and filtration tank 14, through the most of impurity of the adsorbing and removing of coke layer.Combustible gas is sent in gas storage holder 16 and is stored by induced draft fan 15 again.Part combustion gas is fed in settling chamber 19 through coupling cock 27, with burning, provides biomass pyrolytic institute heat requirement.Most of combustion gas is fed in resident family and becomes geseous fuel.From pyrolysis moving-bed 6, the complete coke of pyrolysis enters into coke activation furnace 21, by filling into activator (as air, water vapour, carbonic acid gas etc.), can obtain gac of high-quality more etc.Coke is finally by the cooling room temperature that drops to of crossing coke air cooling chamber 22, coke water cold house 23, finally by the output of coke discharging bin 24 continous ways.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.

Claims (2)

1. a continuous biomass moving bed pyrolysis polygenerations systeme, comprise pyrolysis unit, condensing unit, clean unit, gas storage unit and heating unit, pyrolysis unit connects respectively condensing unit and heating unit, the gas storage unit connects respectively clean unit and heating unit, and condensing unit is connected with the gas storage unit pipe by clean unit; Heating unit produces high-temperature flue gas, pyrolysis unit the heat provided is provided at a high speed by high-temperature flue gas biomass thermal is converted into to charcoal gas and oil product Separate Storage coke, condensing unit adopts the mode of fractional condensation isolate bio oil and combustion gas and store bio oil from charcoal gas and oil product, clean unit is removed the impurity in combustion gas, and the combustion gas after impurity is removed in the storage of gas storage unit;
Described pyrolysis unit comprises for hotflue (5), and the residual heat drying stove (1), feeding machine (2), material distributing machine (3), feeding warehouse (4), pyrolysis moving-bed (6), activation furnace (21), coke air cooling chamber (22), coke water cold house (23) and the coke discharging bin (24) that directly are communicated with successively, pyrolysis moving-bed (6) is positioned at for hotflue (5);
Described pyrolysis moving-bed (6) comprises axially many row moving bed pyrolysis pipe (31) and the pyrolysis gas collector (35) vertical with the sweep of gases direction, and the adjacent moving bed pyrolysis pipe on the sweep of gases direction is arranged in the dislocation mode; Pyrolysis gas spillway (36) is offered on the top of moving bed pyrolysis pipe (31), and pyrolysis gas spillway (36) is arranged in pyrolysis gas collector (35), and pyrolysis gas collector (35) does not contact with pyrolysis gas spillway (36);
Describedly for hotflue (5), comprise by a plurality of flue gases and be folded to the flue cavity that case (29) joins up and down and forms; Part beyond the top of moving bed pyrolysis pipe (31) is placed in the flue cavity, be provided with hot gas approach (28) in the bottom of flue cavity, and at the internal layout smoke deflector (34) of inlet mouth (28), the top layout exhanst gas outlet (32) of flue cavity; Adjacent flue gas is folded between case (29) and is provided with buffler, a plurality of bufflers form the reciprocating and turning-back structure so that flue gas is led, offer the hole of guaranteeing that moving bed pyrolysis pipe (31) passes on buffler (30), moving bed pyrolysis pipe (31) outer wall does not directly contact with buffler (30).
2. continuous biomass moving bed pyrolysis polygenerations systeme according to claim 1, it is characterized in that, described activation furnace (21) comprises activator dispersing chamber (39) and a plurality of coke activating chamber (37), each activating chamber directly is connected with the bottom of row's moving bed pyrolysis pipe (31) of pyrolysis moving-bed (6), offer activator spout (40) in the both sides of coke activating chamber (37), each side activator spout (40) directly is connected with activator dispersing chamber (39), also is provided with activator entrance (38) on activator dispersing chamber (39).
CN2012102419557A 2012-07-12 2012-07-12 Continuous biomass pyrolytic carbon gas-oil poly-generation system CN102776007B (en)

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