CN205933748U - System for living beings preparation active carbon - Google Patents

System for living beings preparation active carbon Download PDF

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Publication number
CN205933748U
CN205933748U CN201620491677.4U CN201620491677U CN205933748U CN 205933748 U CN205933748 U CN 205933748U CN 201620491677 U CN201620491677 U CN 201620491677U CN 205933748 U CN205933748 U CN 205933748U
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heat exchanger
fluidized bed
activation furnace
activation
pyrolysis
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赵延兵
陈水渺
姜朝兴
薛逊
吴道洪
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Shenwu Technology Group Corp Co Ltd
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Beijing Shenwu Environmental and Energy Technology Co Ltd
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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

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Abstract

The utility model discloses a system for living beings preparation active carbon, include: the screw feeding ware (3 1 ), down bed rapid pyrolysis activation furnace (3), spiral discharger (3 8 ), wherein, down bed rapid pyrolysis activation furnace (3) is inside from last to dividing dry section, pyrolysis zone, transition district and active region in proper order into down, wherein has radiant tube (3 arranged respectively to dry section, pyrolysis zone and active region 4 ) is down bed rapid pyrolysis activation furnace (3) including oil gas export (3 6 )And steam inlet (3 7 ), wherein, the oil gas export (3 6 )Being located the juncture in pyrolysis zone and transition district, steam inlet (3 7 )Be located the lower part of active region. The biological charcoal of high temperature that the pyrolysis will be passed through by the system need not the cooling and directly is used for activation reaction, makes the active carbon, energy -conserving effect preferred, and it is higher to pass through the biological charcoal reactivity that rapid pyrolysis obtained simultaneously.

Description

A kind of biomass prepare the system of activated carbon
Technical field
This utility model is related to chemical field and in particular to a kind of biomass prepare the system of activated carbon.
Background technology
The exhaustive exploitation of the non-renewable fossil energy such as coal, oil and using so that tellurian environmental problem is got over Come severeer, find a kind of task of the alternative energy source of clean type also extremely urgent.Biomass resource is the 4th on the earth Large resource, its reserves is only second to coal, oil and natural gas, is also the clean type regenerative resource of reserves first simultaneously, is One of suitable fossil energy alternative energy source.But the utilization ratio of biomass resource is not high, most of agricultural wastes are straight Connect farmland to burn, not only cause environmental pollution, also result in energy waste.Therefore, efficient utilization biomass resource can not only delay Solution energy scarcity and problem of environmental pollution bring economic benefit moreover it is possible to turn waste into wealth.
It is that biomass are maximally effective by be pyrolyzed the method activating biomass being prepared into activated carbon, bio oil and pyrolysis gas One of utilization ways.Biomass are prepared activated carbon and are broadly divided into Physical and chemical method;Chemical method is prepared charcoal needs and is carried out Deacidification or desalination reaction, produce substantial amounts of waste water, pollute environment;And physically activated then have that time-consuming, the high disadvantage of power consumption End.
Utility model content
In order to solve the above problems, this utility model provides a kind of biomass to prepare the system and method for activated carbon, by heat Solution, priming reaction are designed as carrying out in same reacting furnace, the high-temperature biological charcoal through pyrolysis need not be cooled down and be directly used in work Change reaction, energy-saving effect is preferable;The charcoal reactivity simultaneously obtaining through fast pyrogenation is higher, directly carries out priming reaction Efficiency higher.
In order to solve above-mentioned technical problem, this utility model employs the following technical solutions and is achieved:
A kind of biomass prepare the system of activated carbon, including:Feeding screw 3-1, down-flow fluidized bed using ECT fast pyrogenation activation furnace 3, Spiral discharging device 3-8, wherein, feeding screw 3-1 is connected with the charging aperture of down-flow fluidized bed using ECT fast pyrogenation activation furnace 3, and spiral goes out Glassware 3-8 be connected with the discharging opening of down-flow fluidized bed using ECT fast pyrogenation activation furnace 3 it is characterised in that:Down-flow fluidized bed using ECT fast pyrogenation activation furnace 3 Inside is in turn divided into dry section, pyrolysis zone, transition region and region of activation, wherein dry section, pyrolysis zone and region of activation from top to bottom It is respectively disposed with radial canal;Down-flow fluidized bed using ECT fast pyrogenation activation furnace 3 includes oil gas vent 3-6 and steam inlet 3-7, wherein, oil gas Outlet 3-6 is located at the intersection of pyrolysis zone and transition region, and steam inlet 3-7 is located at the bottom of region of activation.
Further, biomass are prepared the system of activated carbon and are also included:Rotary kiln 1, feed bin 2, described rotary kiln Exsiccator 1 is connected with feed bin 2, and feed bin 2 is connected with feeding screw 3-1;First Heat Exchanger 4, cleaning system 5, bio oil oil tank 6th, gas holder 7, wherein, First Heat Exchanger 4 is connected with oil gas vent 3-6 and cleaning system 5 respectively, cleaning system 5 respectively with biology Oil tank 6 is connected with gas holder 7;Second heat exchanger 9, the 3rd heat exchanger 10, charcoal storehouse 11, wherein, the second heat exchanger 9, the 3rd heat exchange Device 10, charcoal storehouse 11 are sequentially connected, and the second heat exchanger 9 is connected with spiral discharging device 3-8;Steam generator 8, steam generator 8 with Steam inlet 3-7 is connected.
Further, also include tapered material distributor 3-2 in down-flow fluidized bed using ECT fast pyrogenation activation furnace 3, tapered material distributor 3-2 is located at The top of the dry section of down-flow fluidized bed using ECT fast pyrogenation activation furnace 3, and down-flow fluidized bed using ECT fast pyrogenation activation furnace 3 material inlet just under Side.
Further, down-flow fluidized bed using ECT fast pyrogenation activation furnace 3 also includes:Fuel gas inlet 3-3, exhanst gas outlet 3-5, wherein, combustion Gas import 3-3 is the fuel gas inlet of radial canal, and exhanst gas outlet 3-5 is the exhanst gas outlet of radial canal.
Further, gas holder 7 is connected with fuel gas inlet 3-3 and steam generator 8 respectively;Exhanst gas outlet 3-5, the 3rd heat exchange Device 10 and rotary kiln 1 are sequentially connected;Soft water supply pipe passes sequentially through the second heat exchanger 9, First Heat Exchanger 4 is sent out with steam Raw device 8 is connected.
Preferably, the height of transition region accounts for the 1/10-1/5 of down-flow fluidized bed using ECT fast pyrogenation activation furnace total height.
Using the system that above-described biomass prepare activated carbon prepare activated carbon method it is characterised in that:Including Following steps:
Step 1, biomass carry out preheating and drying process by rotary kiln 1;
Biomass after step 2, dried are delivered to feed bin 2;
Biomass in step 3, feed bin 2 deliver into down-flow fluidized bed using ECT fast pyrogenation activation furnace 3 by feeding screw 3-1 At material inlet;
Step 4, biomass rely on self gravitation through tapered material distributor 3-2, radial canal 3-4 uniform distribution;
Step 5, combustion gas is passed through to the radial canal 3-4 of down-flow fluidized bed using ECT fast pyrogenation activation furnace 3 by fuel gas inlet 3-3;
Step 6, biomass are dried process through dry section;
Biomass entrance pyrolysis zone after step 7, dry section are processed carries out the prepared charcoal of pyrolytic reaction and pyrolysis oil gas;
Step 8, steam generator 8 generate the steam inlet 3-7 through down-flow fluidized bed using ECT fast pyrogenation activation furnace 3 for the steam and enter activation Area;
Step 9, the charcoal entrance region of activation obtaining through step 7, via steam activation;
Charcoal after step 10, activation forms activated carbon, discharges via spiral discharging device 3-8;
Step 11, the activated carbon discharged are processed through the second heat exchanger 9 and the 3rd heat exchanger 10 heat exchange, are stored in charcoal storehouse 11;
The pyrolysis oil gas that step 12, step 7 are obtained is discharged through oil gas vent 3-6, after the heat exchange of a heat exchanger 4, enters Cleaning system 5;Bio oil is stored in bio oil oil tank 6, and pyrolysis gas are stored in gas holder 7.
Preferably, the pyrolysis gas part in gas holder 7 is used for radial canal 3-4 heat supply by fuel gas inlet 3-3, in gas holder 7 Pyrolysis gas a part be steam generator 8 provide energy production steam.
Preferably, the flue gas discharged from exhanst gas outlet 3-5 is processed through the 3rd heat exchanger 10 heat exchange, is delivered to rotary kiln drying Device 1 is used for carrying out preheating and drying to biomass.
Preferably, the soft water supplied by soft water supply pipe is processed through the second heat exchanger 9, First Heat Exchanger 4 respectively, conveying To steam generator 8.
Preferably, 400~600 DEG C of dry section temperature, 550~650 DEG C of pyrolysis zone temperature, region of activation temperature 700~900 ℃.
The beneficial effects of the utility model are that biomass prepare the pyrolysis of activated carbon, priming reaction in same reactor Carry out, charcoal after pyrolysis is directly used in activation, efficiency high;Raw material drying is flue gas heat exchange offer, activated carbon and high temperature Sensible heat contained by pyrolysis oil gas all gives heat exchange to reclaim, and energy utilization rate is high;Reaction pyrolysis oil, activated carbon yield are higher, simultaneously activity Charcoal iodine sorption value and methylene blue adsorption value are higher, and activated carbon property is preferable.
Brief description
Fig. 1 is system structure and the schematic flow sheet that a kind of biomass of the present utility model prepare activated carbon.
Fig. 2 is the knot of the down-flow fluidized bed using ECT fast pyrogenation activation furnace of the system that a kind of biomass of the present utility model prepare activated carbon Structure schematic diagram.
Wherein, 1, rotary kiln, 2, feed bin, 3, down-flow fluidized bed using ECT fast pyrogenation activation furnace, 3-1, feeding screw, 3-2, Tapered material distributor, 3-3, fuel gas inlet, 3-4, radial canal, 3-5, exhanst gas outlet, 3-6, oil gas vent, 3-7, steam inlet, 3- 8, spiral discharging device, 4, heat exchanger, 5, cleaning system, 6, bio oil oil tank, 7, gas holder, 8, steam generator, 9, No. two Heat exchanger, 10, No. three heat exchangers, 11, charcoal storehouse.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only in order to explain This utility model, is not used to limit this utility model.
See figures.1.and.2.This utility model provides the system that a kind of biomass prepare activated carbon, including:Spiral feeds Device 3-1, down-flow fluidized bed using ECT fast pyrogenation activation furnace 3, spiral discharging device 3-8, wherein, feeding screw 3-1 and down-flow fluidized bed using ECT fast pyrogenation The charging aperture of activation furnace 3 is connected, and spiral discharging device 3-8 is connected with the discharging opening of down-flow fluidized bed using ECT fast pyrogenation activation furnace 3.Descending It is in turn divided into dry section, pyrolysis zone, transition region and region of activation from top to bottom inside bed fast pyrogenation activation furnace 3, wherein, be dried Area, pyrolysis zone and region of activation are respectively disposed with radial canal;Down-flow fluidized bed using ECT fast pyrogenation activation furnace 3 includes oil gas vent 3-6 and steam Import 3-7, wherein, oil gas vent 3-6 is located at the intersection of pyrolysis zone and transition region, produces for discharging pyrolysis oil gas and activation Gas;Steam inlet 3-7 is located at the bottom of region of activation.
The system that described biomass prepare activated carbon also includes:Rotary kiln 1, feed bin 2, described rotary kiln 1 is connected with feed bin 2, and feed bin 2 is connected with feeding screw 3-1;First Heat Exchanger 4, cleaning system 5, bio oil oil tank 6, gas holder 7, wherein, First Heat Exchanger 4 is connected with oil gas vent 3-6 and cleaning system 5 respectively, cleaning system 5 respectively with bio oil oil tank 6th, gas holder 7 is connected;Second heat exchanger 9, the 3rd heat exchanger 10, charcoal storehouse 11, wherein, the second heat exchanger 9 and spiral discharging device 3-8 phase Even, the second heat exchanger 9, the 3rd heat exchanger 10, charcoal storehouse 11 are sequentially connected;Steam generator 8, steam generator 8 and steam inlet 3-7 is connected.
Further, also include tapered material distributor 3-2 in down-flow fluidized bed using ECT fast pyrogenation activation furnace 3, tapered material distributor 3-2 is located at The top of the dry section of down-flow fluidized bed using ECT fast pyrogenation activation furnace 3, and down-flow fluidized bed using ECT fast pyrogenation activation furnace 3 material inlet just under Side.
Further, down-flow fluidized bed using ECT fast pyrogenation activation furnace 3 also includes:Fuel gas inlet 3-3, exhanst gas outlet 3-5, wherein, combustion Gas import 3-3 is the fuel gas inlet of radial canal, and exhanst gas outlet 3-5 is the exhanst gas outlet of radial canal.
Further, gas holder 7 is connected with fuel gas inlet 3-3 and steam generator 8 respectively.Exhanst gas outlet 3-5, the 3rd heat exchange Device 10 and rotary kiln 1 are sequentially connected.Soft water supply pipe passes sequentially through the second heat exchanger 9, First Heat Exchanger 4 is sent out with steam Raw device 8 is connected.
The height of transition region accounts for the 1/10-1/5 of pyrolysis activation furnace total height.
The function of transition region is to separate pyrolysis zone and region of activation;Oil gas vent 3-6 is located at the friendship of pyrolysis zone and transition region At boundary, for discharging the gas of pyrolysis oil gas and activation generation.
Under in working order, after dry section and pyrolysis zone, appropriateness is deposited in region of activation to material, to allow material to enter Row priming reaction, the highly desirable position less than oil gas vent of accumulation.The gas that the pyrolysis oil gas that pyrolysis produces produces with activation Body all discharges pyrolysis activation furnace by oil gas vent, expellant gas is preferably sent to the fuel gas inlet of radial canal, as fuel For radial canal burning.
The Viability charcoal of activated material shape, as final products.
Prepare the system preparation active carbon method of activated carbon using above-described biomass, comprise the steps:
Step 1, biomass carry out preheating and drying process by rotary kiln 1;
Biomass after step 2, dried are delivered to feed bin 2;
Biomass in step 3, feed bin 2 deliver into down-flow fluidized bed using ECT fast pyrogenation activation furnace 3 by feeding screw 3-1 At material inlet;
Step 4, biomass rely on self gravitation through tapered material distributor 3-2, radial canal 3-4 uniform distribution;
Step 5, combustion gas is passed through to the radial canal 3-4 of down-flow fluidized bed using ECT fast pyrogenation activation furnace 3 by fuel gas inlet 3-3;
Step 6, biomass are dried process through dry section;
Biomass entrance pyrolysis zone after step 7, dry section are processed carries out the prepared charcoal of pyrolytic reaction and pyrolysis oil gas;
Step 8, steam generator 8 generate the steam inlet 3-7 through down-flow fluidized bed using ECT fast pyrogenation activation furnace 3 for the steam and enter activation Area;
Step 9, the charcoal entrance region of activation obtaining through step 7, via steam activation;
Charcoal after step 10, activation is discharged via spiral discharging device 3-8;
Step 11, the activated carbon discharged are processed through No. two heat exchangers 9 and No. three heat exchanger 10 heat exchange, are stored in charcoal storehouse 11;
The pyrolysis oil gas that step 12, step 7 are obtained is discharged through oil gas vent 3-6, after the heat exchange of a heat exchanger 4, enters Cleaning system 5;Bio oil is stored in bio oil oil tank 6, and pyrolysis gas are stored in gas holder 7.
A pyrolysis gas part in gas holder 7 is used for radial canal 3-4 heat supply, the pyrolysis gas in gas holder 7 by fuel gas inlet 3-3 A part provides energy production steam for steam generator 8.
The flue gas discharged from exhanst gas outlet 3-5 is processed through No. three heat exchanger 10 heat exchange, is delivered to rotary kiln 1 and is used for Preheating and drying is carried out to biomass.
The soft water supplied by soft water supply pipe is processed through the second heat exchanger 9, First Heat Exchanger 4 respectively, is delivered to steam Generator 8.
400~600 DEG C of dry section temperature, 550~650 DEG C of pyrolysis zone temperature, 700~900 DEG C of region of activation temperature.
Described biomass material particle size range 0.1~10mm.
Embodiment
The workflow of the present embodiment is:After pine sawdust (particle diameter < 6mm) is dried through rotary kiln 1, moisture content 8%, temperature 70 C;It is delivered to feed bin 2, enters in down-flow fluidized bed using ECT fast pyrogenation activation furnace 3 via feeding screw 3-1, rely on Self gravitation, through tapered material distributor 3-2, radial canal 3-4 cloth, sequentially passes through dry section (400 DEG C), pyrolysis zone (600 DEG C), with Shi Fasheng fast pyrogenation reacts, and reacted charcoal enters into region of activation (900 DEG C) through transition region, via steam activation (600 DEG C), the high temperature active charcoal (650 DEG C) after activation is discharged by spiral discharging device 3-8, through the second heat exchanger 9 and the 3rd heat exchanger 10 Heat exchange is processed, and is stored in charcoal storehouse 11;High temperature pyrolysis oil gas (550 DEG C) is discharged by oil gas vent 3-6, at First Heat Exchanger 4 heat exchange Cleaning system 5 is entered into, bio oil is sent into bio oil oil tank 6 and stored, a pyrolysis gas part is used for radial canal 3-4 heat supply after reason, Another part provides energy for steam generator 8, produces steam.
Product is measured with analysis, result see table:
Table 1 products distribution
Bio oil Activated carbon Pyrolysis gas Pyrolysis water
31% 26% 27% 16%
Table 2 activated carbon-iodine adsorptive value and methylene blue adsorption value
Iodine sorption value mg/g Methylene blue adsorption value ml/g
1102 182
Above by embodiment, this utility model is described in detail it should be appreciated that those skilled in the art Member can carry out change and the modification of various ways completely in the range of without departing from this utility model technological thought.This The technical scope of utility model is not limited to content described above it is necessary to determine its protection according to right Scope.

Claims (6)

1. a kind of biomass prepare the system of activated carbon, including:Feeding screw (3-1), down-flow fluidized bed using ECT fast pyrogenation activation furnace (3), spiral discharging device (3-8), wherein, feeding screw (3-1) is connected with the charging aperture of down-flow fluidized bed using ECT fast pyrogenation activation furnace (3) Logical, spiral discharging device (3-8) be connected with the discharging opening of down-flow fluidized bed using ECT fast pyrogenation activation furnace (3) it is characterised in that:Down-flow fluidized bed using ECT is fast Be in turn divided into dry section, pyrolysis zone, transition region and region of activation inside speed heat solution activation furnace (3) from top to bottom, wherein dry section, Pyrolysis zone and region of activation are respectively disposed with radial canal (3-4);Down-flow fluidized bed using ECT fast pyrogenation activation furnace (3) includes oil gas vent (3-6) With steam inlet (3-7), wherein, oil gas vent (3-6) is located at the intersection of pyrolysis zone and transition region, steam inlet (3-7) position Bottom in region of activation.
2. biomass according to claim 1 prepare activated carbon system it is characterised in that:Also include:Rotary kiln drying Device (1), feed bin (2), described rotary kiln (1) is connected with feed bin (2), and feed bin (2) is connected with feeding screw (3-1); First Heat Exchanger (4), cleaning system (5), bio oil oil tank (6), gas holder (7), wherein, First Heat Exchanger (4) respectively with oil gas Outlet (3-6) is connected with cleaning system (5), and cleaning system (5) is connected with bio oil oil tank (6), gas holder (7) respectively;Second changes Hot device (9), the 3rd heat exchanger (10), charcoal storehouse (11), wherein, the second heat exchanger (9), the 3rd heat exchanger (10), charcoal storehouse (11) according to Secondary connected, the second heat exchanger (9) is connected with spiral discharging device (3-8);Steam generator (8), steam generator (8) is entered with steam Mouth (3-7) is connected.
3. biomass according to claim 1 and 2 prepare activated carbon system it is characterised in that:Down-flow fluidized bed using ECT fast pyrogenation Tapered material distributor (3-2) is also included, tapered material distributor (3-2) is located at down-flow fluidized bed using ECT fast pyrogenation activation furnace (3) in activation furnace (3) The top of dry section, and the underface of the material inlet in down-flow fluidized bed using ECT fast pyrogenation activation furnace (3).
4. biomass according to claim 2 prepare activated carbon system it is characterised in that:Down-flow fluidized bed using ECT fast pyrogenation activates Stove (3) also includes:Fuel gas inlet (3-3), exhanst gas outlet (3-5), wherein, fuel gas inlet (3-3) is the combustion gas of radial canal (3-4) Import, exhanst gas outlet (3-5) is the exhanst gas outlet of radial canal (3-4).
5. biomass according to claim 4 prepare activated carbon system it is characterised in that:Gas holder (7) respectively with combustion gas Import (3-3) is connected with steam generator (8);Exhanst gas outlet (3-5), the 3rd heat exchanger (10) and rotary kiln (1) according to Secondary connected;Soft water supply pipe passes sequentially through the second heat exchanger (9), First Heat Exchanger (4) is connected with steam generator (8).
6. biomass according to claim 1 prepare activated carbon system it is characterised in that:The height of transition region accounts for pyrolysis The 1/10-1/5 of activation furnace total height.
CN201620491677.4U 2016-05-26 2016-05-26 System for living beings preparation active carbon Active CN205933748U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105838400A (en) * 2016-05-26 2016-08-10 北京神雾环境能源科技集团股份有限公司 System and method for preparing activated carbon from biomass
CN107416829A (en) * 2017-05-31 2017-12-01 大连理工大学 The technique that a kind of biomass pyrolytic activation prepares activated carbon
CN113461007A (en) * 2021-07-28 2021-10-01 东南大学 Movable biomass pyrolysis activation partition coupling method and device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105838400A (en) * 2016-05-26 2016-08-10 北京神雾环境能源科技集团股份有限公司 System and method for preparing activated carbon from biomass
CN107416829A (en) * 2017-05-31 2017-12-01 大连理工大学 The technique that a kind of biomass pyrolytic activation prepares activated carbon
CN113461007A (en) * 2021-07-28 2021-10-01 东南大学 Movable biomass pyrolysis activation partition coupling method and device
CN113461007B (en) * 2021-07-28 2023-12-29 东南大学 Mobile biomass pyrolysis activation partition coupling method and device

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Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155

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