CN104927884B - A kind of device and method thereof of waste material preparing combustible gas by catalytic cracking - Google Patents
A kind of device and method thereof of waste material preparing combustible gas by catalytic cracking Download PDFInfo
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- CN104927884B CN104927884B CN201510271967.8A CN201510271967A CN104927884B CN 104927884 B CN104927884 B CN 104927884B CN 201510271967 A CN201510271967 A CN 201510271967A CN 104927884 B CN104927884 B CN 104927884B
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Abstract
The invention discloses a kind of equipment of waste material preparing combustible gas by catalytic cracking, including pyrolysis furnace, it is characterised in that：The equipment of the waste material preparing combustible gas by catalytic cracking also includes accumulation of heat decoking device, condensation decoking device, deduster, moisture separator and gas holder, the gas outlet of the pyrolysis furnace is connected with the air inlet of accumulation of heat decoking device, the gas outlet of the accumulation of heat decoking device is connected with condensing the air inlet of decoking device, the gas outlet of the condensation decoking device is connected with the air inlet of deduster, the gas outlet of the deduster is connected with the air inlet of moisture separator, and the gas outlet of the moisture separator is connected with the gas holder for storing fuel gas.
Description
Technical field
The present invention relates to a kind of device and method thereof of waste material preparing combustible gas by catalytic cracking.
Background technology
The energy is one of three major issues of facing mankind, present human being's production.The energy is essentially from can not be again needed for life
Raw " fossil energy " --- coal, oil；But coal and petroleum resources are irreversibly reduced, there is one day of exhaustion eventually, and
Environmental problem more and more serious produced by coal, oil and potential energy crisis have obtained the concern of the whole society, therefore profit
Carries out renewable sources of energy exploitation with waste (including the organic matter in discarded plant and house refuse etc.) for material to replace now
The production of coal and oil, it is increasingly paid close attention to by people.
Existing Patent No. ZL201310434202.2 Chinese invention patent is disclosed《A kind of rubbish thermal cracking handles work
Skill》, comprise the following steps, (1) coarse crushing, rubbish sent into pulverization process in first disintegrator, stone, fragment of brick and silt is sorted out
Deng inorganic matter；(2) magnetic separation, magnetic metal is removed using tramp iron separator or magnetic separator；(3) sieve, using screening plant to through magnetic
The rubbish of choosing processing carries out screening and removes heavy sand, soil and stone grain；(4) it is in small, broken bits, the rubbish of screened processing is sent
Enter and crushed again in the second pulverizer；(5) dry, will be in small, broken bits after rubbish feeding drying machine processing, obtain organic waste material；
(6) in the pre-heat treatment, the pre-heat treatment device that organic waste material is sent to sealing, oxygen deprivation, gone out at a temperature of 250~450 DEG C
Bacterium and decomposed；(7) Pintsch process, the pyrolysis device of sealing, oxygen deprivation is sent to by the organic waste material of preheated processing
In, cracked completely at a temperature of 900~1100 DEG C, obtain mixed gas, tar and coke coal.
And for example Patent No. ZL00111886.2 Chinese invention patent is disclosed《Vegetable material catalytic pyrolysis is produced flammable
Gas device》, it is characterised in that：Provided with the chemical cracking furnace body for vegetable material particle and catalyst reaction, upper of furnace body
Material apparatus for feeding is connected, lower portion of furnace body is provided with residue tapping equipment, while upper of furnace body is additionally provided with fuel gas outlet and taken out
Vacuum port, vacuum orifice goes to connect vacuum extractor, and furnace interior is additionally provided with heater.
However, the combustible gas gas that the non-counterincision solution of above-mentioned patent is obtained is further processed, it can not directly be used
In production industry, automated production level is not implemented.
The content of the invention
The technical problem to be solved in the present invention is that the present situation for being directed to prior art can realize automated production there is provided one kind
Waste material preparing combustible gas by catalytic cracking device and method thereof.
The present invention solve the technical scheme that is used of above-mentioned technical problem for：A kind of waste material preparing combustible gas by catalytic cracking
Equipment, including pyrolysis furnace, it is characterised in that：The equipment of the waste material preparing combustible gas by catalytic cracking also includes accumulation of heat and devoked
Device, condensation decoking device, deduster, moisture separator and gas holder, the gas outlet of the pyrolysis furnace and the air inlet of accumulation of heat decoking device
Be connected, the gas outlet of the accumulation of heat decoking device is connected with the air inlet of condensation decoking device, the gas outlet for condensing decoking device and
The air inlet of deduster is connected, and the gas outlet of the deduster is connected with the air inlet of moisture separator, the moisture separator
Gas outlet be connected with the gas holder for storing fuel gas.
In order to stop from the dust in the gaseous mixture that pyrolysis furnace comes out and the gasification tar in gaseous mixture be cracked again,
The accumulation of heat decoking device is double-decker, and the outer layer of the accumulation of heat decoking device is the heat-insulation layer being made up of insulation material, and the accumulation of heat is removed
The internal layer of burnt device is sieved for the stove of cylinder shape structure, and mesh is formed with the cylinder wall of stove sieve, is provided with stove sieve multiple
The heat storage being made up of heat-storing material, the motor rotated in the end of accumulation of heat decoking device provided with driving stove sieve, is removed in accumulation of heat
The upside of the outer layer of burnt device is provided with air inlet, gas outlet is provided with the downside of the outer layer of accumulation of heat decoking device, in accumulation of heat decoking device
Bottom is provided with coke discharging mouthful.
In order to increase the flow path in gaseous mixture accumulation of heat decoking device, so as to increase gaseous mixture stopping in accumulation of heat decoking device
Longitudinal direction in time, the stove sieve is stayed to be provided with multiple parting beads, lateral separation, which is provided with, in the stove is sieved is used for fix the parting bead
Dead ring.
In order to reduce the temperature of high-temperature gas mixture, the condensation decoking device includes tank body, is provided with tank body outside connection
The circulating line of cooling water, water tar well is provided with the bottom of the tank body, is provided with and is calmed the anger on the water tar well top
Air inlet pipe, coke discharging tube is provided with the bottom of the water tar well.
Further, the present invention is using the method for classification cooling, i.e., described condensation decoking device is in series with multiple.
In order to ensure the optimum position of charging aperture, and it is easy to feeding, the charging aperture of the pyrolysis furnace is located at the upper of pyrolysis furnace
Portion, is longitudinally provided with the elevator for being used for that waste material to be delivered to charging aperture from bottom on the pyrolysis furnace.
For the ease of the ashes after discharge cracking, the gas outlet of the pyrolysis furnace is located at the top of pyrolysis furnace, is split at this
The bottom for solving stove is provided with ash hole, and the ash hole is connected with ash discharge auger, and the end of ash discharge auger is connected with storage ash bin.
In addition, producing combustible gas the invention provides a kind of equipment based on above-mentioned waste material preparing combustible gas by catalytic cracking
The method of body, it is characterised in that comprise the following steps：
(a) waste material, is put into the charging aperture of pyrolysis furnace, waste material is cracked in pyrolysis furnace, forms gaseous mixture；
(b), the gaseous mixture formed in step (a) enters the air inlet of accumulation of heat decoking device from the gas outlet of pyrolysis furnace, makes this
Gaseous mixture is cracked again in accumulation of heat decoking device, and carries out rough dusting；
(c), the condensed decoking device condensation of high-temperature gas mixture come out from accumulation of heat decoking device, obtains needing the combustible gas of temperature
Body；
(d) the fuel gas removing dust device, obtained in step (c), further dedusting；
(e) fuel gas, come out from deduster removes the aqueous vapor in fuel gas through moisture separator；
(f), transported from the fuel gas that moisture separator comes out to gas holder storage.
Wherein, fractional condensaion mode is used in the step (c), i.e., the high-temperature gas mixture come out from accumulation of heat decoking device is successively
Pass through multiple condensation decoking devices.
Further, in order to solve the problem of pipeline is blocked by water tar, in the step (c), removed in the condensation
The bottom of burnt device is formed with water tar, and when the water tar is collected into a certain amount of, independent process is carried out by the way of air pressure is extruded.
Compared with prior art, due to the advantage of the invention is that：The present invention utilizes accumulation of heat decoking device after waste material cracking
And condensation decoking device, to mixed gas further dedusting, decoking, while combustible gas be cooled to production need suitable temperature
Degree, then coordinate deduster and moisture separator to handle, most the combustible gas of finished product is directly stored to gas holder at last, in whole mistake
Journey, the waste material made be translates directly into production needs fuel gas, realize waste cracking, after-treatment, gas collection it is integrated,
Improve and split burnt automatization level.
Brief description of the drawings
Fig. 1 is the structural representation of present device；
Fig. 2 is the method schematic diagram of the present invention；
Fig. 3 is provided with the structural representation of the accumulation of heat decoking device of division board；
Fig. 4 is provided with the structural representation of the accumulation of heat decoking device of parting bead；
Fig. 5 is the diagrammatic cross-sectional view at A-A in Fig. 4；
Fig. 6 is the structural representation of condensation decoking device in the present invention (pipeline is circulating line)；
Fig. 7 is the structural representation of condensation decoking device in the present invention (pipeline is condenser pipe)；
Fig. 8 is the diagrammatic cross-sectional view at B-B in Fig. 7.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Fig. 1 to Fig. 8 the invention discloses a kind of equipment of waste material preparing combustible gas by catalytic cracking, including cracking
Stove 1, accumulation of heat decoking device 2, condensation decoking device 3, deduster 4, ash discharge auger 6, storage ash bin 7, moisture separator 5 and gas holder 8 etc..
Wherein, the gas outlet of pyrolysis furnace 1 is connected with the air inlet of accumulation of heat decoking device 2, the gas outlet of the accumulation of heat decoking device 2
It is connected with the air inlet for condensing decoking device 3, the gas outlet of the condensation decoking device 3 is connected with the air inlet of deduster 4, described to remove
The gas outlet of dirt device 4 is connected with the air inlet of moisture separator 5, and the gas outlet of the moisture separator 5 stores flammable with being used for
The gas holder 8 of gas is connected.
The accumulation of heat decoking device 2 is double-decker, and the outer layer of the accumulation of heat decoking device 2 is the heat-insulation layer being made up of insulation material
21, air inlet 23 is provided with the upside of the outer layer of accumulation of heat decoking device 2, gas outlet is provided with the downside of the outer layer of accumulation of heat decoking device 2
24, in the bottom of accumulation of heat decoking device 2 provided with coke discharging mouthful 26, the internal layer of the accumulation of heat decoking device 2 is the stove sieve 22 of cylinder shape structure, should
It is formed with the cylinder wall of stove sieve 22 in mesh (not marked in Fig. 3), stove sieve 22 and is longitudinally provided with multiple parting beads 211, in stove sieve
Lateral separation, which is provided with, in 22 is used for the dead ring 212 (as shown in Figure 4) of fixing the parting bead 211, by set parting bead 211 with
Increase residence time of the gaseous mixture in accumulation of heat decoking device 2, multiple storages being made up of heat-storing material are provided with stove sieve 22
Hot body 27, the heat storage 27 is heat-storing sphere or dolomite, and the heat storage can have various shapes, specific such as spherical junctions
Structure, triangular structure, diamond structure etc., the heat storage 27 have filled up stove and have sieved 22 inner chambers, and use is provided with the top of accumulation of heat decoking device 2
In the drain hole 210 that heat storage 27 is put into accumulation of heat decoking device 2, in use, heat storage 27 is gradually for accumulation of heat decoking device 2
It is worn, by setting the drain hole 210, so as to add heat storage 27 into accumulation of heat decoking device 2 in time；In addition, storing
The motor 25 that the end of hot decoking device 2 is rotated provided with driving stove sieve 22, the output shaft 28 of motor 25 is removed across accumulation of heat
Burnt device 2, on the output shaft 28 of the motor 25 provided with length differ and interlaced arrangement division board 29, the band of motor 25
Dynamic stove sieve 22 is rotated in heat-insulation layer 21, so as to drive heat storage 27 to be rolled in stove sieve 22.Due to being set inside accumulation of heat decoking device 2
There is heat storage 27, the interval of motor 25 is rotated so that heat storage 27 is stirred in accumulation of heat decoking device, and is come out from pyrolysis furnace 1
Gaseous mixture enter from the air inlet 23 of accumulation of heat decoking device 2, heat storage 27 is heated, so as to further increasing accumulation of heat
Temperature inside decoking device 2, the mixture temperature typically come out from pyrolysis furnace is 500 degree, can be improved to 700 degree with
On so that gaseous mixture in gasification tar be cleaved again；In addition, the division board 29 on output shaft 28 extends gaseous mixture
The parting bead 211 being provided with 22 is sieved by path and stove in accumulation of heat decoking device 2, gaseous mixture is at utmost increased in accumulation of heat
Residence time in decoking device 2, improve cracking degree；Meanwhile, heat storage 27 also has the effect for stopping dust；And in accumulation of heat
The tar of the bottom deposit of decoking device 2, is discharged by coke discharging mouthful 26, and this process, accumulation of heat decoking device 2 can stop more than 95% powder
Dirt and it can be intercepted more than 75% gasification tar to crack again.So greatly reduce tar and be directly entered pipeline 9
Possibility, mitigate to pipeline 9 block pressure, in addition, the temperature of the gaseous mixture into accumulation of heat decoking device 2 be pyrolysis furnace produce
, the heating of heat storage 27 is realized by the gaseous mixture itself, therefore, there is no need to give accumulation of heat decoking device 2 extra
Heat energy, relative to traditional cracking mode, takes full advantage of original energy, greatly reduces the waste of the energy, while will not produce
Raw secondary pollution and waste.
In addition, the condensation decoking device 3 includes tank body 31, air inlet pipe 34 is provided with the upper end of tank body 31, under tank body
End is provided with escape pipe 35, and access hole 33 is equipped with air inlet pipe 34 and escape pipe 35, and cooling water is provided with the lower end of tank body 31
Water inlet 311, be provided with cooling water outlet 310, this be arranged below cooling water intake 311 in the upper end of tank body 31 and
Cooling water outlet 310 is disposed over, and is conducive to slowing down flow velocity of the cooling water in circulating line 32 so that cooling water can
More heats are taken away, cooling effect is improved, water tar well 36 is provided with the bottom of the tank body 31, are received in the water tar
The top of storage 36 is provided with coke discharging tube 39 provided with air inlet pipe 37 of calming the anger in the bottom of the water tar well 36, meanwhile, in water tar
The upper end of collector 36 enters valve 381 provided with water tar, and water tar dump valve 382 is provided with the lower end of water tar well 36.
Gaseous mixture and cooling water are isolated by the present invention in order to realize, pipeline is provided with tank body 31, and the pipeline has two
Connected mode is planted, one of them is, the pipeline is condenser pipe 320, the condenser pipe 320 has many, the two of the condenser pipe 320
End is communicated with air inlet pipe 34 and escape pipe 35 respectively, and the top of water tar well 36 is communicated with escape pipe 35.In addition, in order to improve
Fin 321 is provided with heat diffusion, the condenser pipe 320, the fin 321 is connected to condenser pipe by the way of splicing
On 320, so that improving multiple fin 321 pacifies the convenience torn open, as shown in Figure 7,8.
Another way is that the pipeline is circulating line 32, and the two ends of the circulating line 32 intake with cooling water respectively
Mouth 311 is connected with cooling water outlet 310.This lower end that cooling water intake 311 is arranged on to tank body 31, cooling water water outlet
Mouth 310 is arranged on the mode of the upper end of tank body 31, is conducive to slowing down, flow velocity of the cooling water in circulating line 32 so that cooling
Water can take away more heats, improve cooling effect.
Wherein, circulating line 32 can have a variety of set-up modes, and one of which is that the two ends of the circulating line 32 are poly-
Hold together pipe, gather at two between pipe and be connected with along the axially arranged multiple return ducts of tank body, the return duct is covered with inside tank body 31
Space.
Another way is that the circulating line 32 is covered with along the circumferential annular spread of the inwall of tank body 31, circulating line 32
The inner space of tank body 31.
In an embodiment of the present invention, in order to improve cooling-down effect, using the method for classification cooling, i.e., described condensation decoking
Device 3 is in series with multiple, it is preferable that in an embodiment of the present invention, three condensation decoking devices 3 of connecting, and specifically, makes previous cold
The escape pipe 35 of solidifying decoking device 3 is connected with the air inlet pipe 34 of latter individual adjacent condensation decoking device 3 can be achieved.
The present invention is high using the specific heat of water, and gasification absorbs the characteristic of heat, is connected in the cooling water intake 311 of tank body 31
Cooling water, finally the cooling water outlet 310 from the upper end of tank body 31 flow out, meanwhile, from pyrolysis furnace produce high-temperature gas mixture then
Enter from the air inlet pipe 34 of tank body 31, and flowed out from escape pipe 35, in the process, the high-temperature gas mixture in tank body 31 is in cooling
In the presence of water so that from condensation decoking device 3 come out high-temperature gas mixture temperature reduction, can make one land vertically to 60 degrees Celsius with
Under, because the pipeline in tank body 31 isolates cooling water and gaseous mixture, cooling water is no and gaseous mixture is directly contacted, and cooling water
It can recycle, so that while mixture temperature is reduced, it is to avoid the generation of waste water, mitigate the pressure of wastewater treatment significantly
Power；In addition, tar and water cooling that opening water tar enters in valve 381, high-temperature gas mixture congeal into water tar, water tar is collected into
In water tar well 36, when being collected into a certain amount of, water tar dump valve 382 is opened, while to air inlet pipe 37 of calming the anger
Inside it is passed through pressure-air so that water tar is discharged condensation decoking device 3 by coke discharging tube 39, it is to avoid be used for a long time, condensation decoking
The water tar that device 3 is produced blocks pipeline.
In addition, the optimum position in order to ensure charging aperture 11, i.e., feed from the top of pyrolysis furnace 1, and it is easy to feeding, it is described
The charging aperture 11 of pyrolysis furnace 1 is located at the top of pyrolysis furnace 1, and being longitudinally provided with the pyrolysis furnace 1 is used to convey waste material from bottom
To the elevator 13 of charging aperture.Specifically, waste material is added in the waste material entrance of the elevator 13 on ground, is carried out using conveyer 14
Feeding, charging aperture 11 is delivered to by waste material, now, opens material inlet valve 12, and waste material enters in the furnace chamber of pyrolysis furnace 1, plays true
Empty pump igniting, pyrolysis furnace 1 is cracked to waste material.By setting elevator 13 and conveyer 14, realize eminence on ground
The process that charging aperture is fed, is easy to feeding operation.
Further, the gas outlet of the pyrolysis furnace 1 is located at the top of pyrolysis furnace 1, the gas outlet and accumulation of heat decoking device 2
Air inlet be connected, be provided with ash hole in the bottom of the pyrolysis furnace 1, the ash hole is connected with ash discharge auger 6, ash discharge auger 6
End is connected with storage ash bin 7, consequently facilitating the ashes after discharge cracking.
Finally, produced present invention also offers a kind of equipment based on above-mentioned waste material preparing combustible gas by catalytic cracking flammable
The method of gas, comprises the following steps：
(a) waste material, is put into the charging aperture 11 of pyrolysis furnace 1, waste material is cracked in pyrolysis furnace 1, forms gaseous mixture；
(b), the gaseous mixture formed in step (a) enters the air inlet of accumulation of heat decoking device 2 from the gas outlet of pyrolysis furnace 1, makes
The gaseous mixture is cracked again in accumulation of heat decoking device 2, and carries out rough dusting；
(c), the condensed decoking device 3 of high-temperature gas mixture come out from accumulation of heat decoking device 2 is condensed, and obtains needing the flammable of temperature
Gas；
(d) the fuel gas removing dust device 4, obtained in step (c), further dedusting；
(e) fuel gas, come out from deduster removes the aqueous vapor in fuel gas through moisture separator 5, wherein, should
Moisture separator 5 is circulating water type vavuum pump moisture separator, i.e., the fuel gas and moisture separator 5 come out from deduster
Vavuum pump 51 is connected, the vavuum pump 51 connection pump circulation water 52, and the pump circulation water 52 is connected with the main body of moisture separator 5；
(f), the fuel gas come out from moisture separator 5, which is transported to gas holder 8, stores.
Wherein, use fractional condensaion mode in the step (c), i.e., from the high-temperature gas mixture out of accumulation of heat decoking device 2 according to
It is secondary to pass through multiple condensation decoking devices 3.
Further, in order to solve the problem of pipeline 9 is blocked by water tar, in the step (c), removed in the condensation
The bottom of burnt device 3 is formed with water tar, and when the water tar is collected into a certain amount of, independent place is carried out by the way of air pressure is extruded
Reason.
To sum up, the present invention, using accumulation of heat decoking device 2 and condensation decoking device 3, one is entered to mixed gas after waste material cracking
Step ground dedusting, decoking, while combustible gas is cooled to the suitable temperature that production needs, then coordinate at deduster 4 and moisture separator 5
Reason, most the combustible gas of finished product is directly stored to gas holder 8 at last, in whole process, and the waste material made has been translates directly into production and needed
The fuel gas wanted, realize waste cracking, after-treatment, gas collection it is integrated, improve and split burnt automatization level.
Claims (9)
1. a kind of equipment of waste material preparing combustible gas by catalytic cracking, including pyrolysis furnace, it is characterised in that：The waste material catalysis is split
The equipment that solution produces fuel gas also includes accumulation of heat decoking device, condensation decoking device, deduster, moisture separator and gas holder, described
The gas outlet of pyrolysis furnace is connected with the air inlet of accumulation of heat decoking device, the gas outlet of the accumulation of heat decoking device and entering for condensation decoking device
Gas port is connected, and the gas outlet of the condensation decoking device is connected with the air inlet of deduster, the gas outlet of the deduster and aqueous vapor
The air inlet of separator is connected, and the gas outlet of the moisture separator is connected with the gas holder for storing fuel gas；
The accumulation of heat decoking device is double-decker, and the outer layer of the accumulation of heat decoking device is the heat-insulation layer being made up of insulation material, the storage
The internal layer of hot decoking device is sieved for the stove of cylinder shape structure, and mesh is formed with the cylinder wall of stove sieve, is provided with stove sieve
Multiple heat storages being made up of heat-storing material, the motor rotated in the end of accumulation of heat decoking device provided with driving stove sieve, are storing
The upside of the outer layer of hot decoking device is provided with air inlet, and gas outlet is provided with the downside of the outer layer of accumulation of heat decoking device, in accumulation of heat decoking
The bottom of device is provided with coke discharging mouthful.
2. equipment according to claim 1, it is characterised in that：Longitudinal direction is provided with multiple parting beads in the stove sieve, in stove sieve
Interior lateral separation is provided with the dead ring for being used for fixing the parting bead.
3. equipment according to claim 1, it is characterised in that：The condensation decoking device includes tank body, is set on tank body
There are air inlet pipe, escape pipe, cooling water intake and cooling water outlet, pipeline is provided with tank body, the two ends of the pipeline are distinguished
Communicate or be connected respectively with cooling water intake with cooling water outlet with escape pipe with air inlet pipe, set in the bottom of the tank body
There is water tar well, on the water tar well top provided with air inlet pipe of calming the anger, be provided with the bottom of the water tar well
Coke discharging tube.
4. equipment according to claim 3, it is characterised in that：The condensation decoking device is in series with multiple.
5. equipment according to claim 1, it is characterised in that：The charging aperture of the pyrolysis furnace is located at the top of pyrolysis furnace,
The elevator for being used for that waste material to be delivered to charging aperture from bottom is longitudinally provided with the pyrolysis furnace.
6. equipment according to claim 1, it is characterised in that：The gas outlet of the pyrolysis furnace is located at the upper of pyrolysis furnace
Portion, ash hole is provided with the bottom of the pyrolysis furnace, and the ash hole is connected with ash discharge auger, and the end of ash discharge auger is connected with storage ash
Case.
7. a kind of equipment of the waste material preparing combustible gas by catalytic cracking described in any one of utilization claim 1 to 6 is produced flammable
The method of gas, it is characterised in that comprise the following steps：
(a) waste material, is put into the charging aperture of pyrolysis furnace, waste material is cracked in pyrolysis furnace, forms gaseous mixture；
(b), the gaseous mixture formed in step (a) enters the air inlet of accumulation of heat decoking device from the gas outlet of pyrolysis furnace, makes the mixing
Gas is cracked again in accumulation of heat decoking device, and carries out rough dusting；
(c), the condensed decoking device condensation of high-temperature gas mixture come out from accumulation of heat decoking device, obtains needing the fuel gas of temperature；
(d) the fuel gas removing dust device, obtained in step (c), further dedusting；
(e) fuel gas, come out from deduster removes the aqueous vapor in fuel gas through moisture separator；
(f), transported from the fuel gas that moisture separator comes out to gas holder storage.
8. method according to claim 7, it is characterised in that：Fractional condensaion mode is used in the step (c), i.e., from storage
The high-temperature gas mixture that hot decoking device comes out passes sequentially through multiple condensation decoking devices.
9. method according to claim 8, it is characterised in that：In the step (c), at the bottom of the condensation decoking device
Portion is formed with water tar, and when the water tar is collected into a certain amount of, independent process is carried out by the way of air pressure is extruded.
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| JP2010229206A (en) * | 2009-03-26 | 2010-10-14 | Jfe Engineering Corp | Apparatus and process for removing tar from gas produced from biomass |
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| CN102580447B (en) * | 2012-03-23 | 2014-04-02 | 南京林业大学 | Dry purification system for agriculture and forest biomass gasified gas |
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