CN111533128A - Preparation device and preparation method of activated carbon for supercapacitor - Google Patents
Preparation device and preparation method of activated carbon for supercapacitor Download PDFInfo
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- CN111533128A CN111533128A CN202010413055.0A CN202010413055A CN111533128A CN 111533128 A CN111533128 A CN 111533128A CN 202010413055 A CN202010413055 A CN 202010413055A CN 111533128 A CN111533128 A CN 111533128A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 150
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 230000004913 activation Effects 0.000 claims abstract description 78
- 239000007789 gas Substances 0.000 claims abstract description 70
- 239000002994 raw material Substances 0.000 claims abstract description 65
- 238000003763 carbonization Methods 0.000 claims abstract description 59
- 238000006243 chemical reaction Methods 0.000 claims abstract description 54
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000002243 precursor Substances 0.000 claims abstract description 45
- 238000002156 mixing Methods 0.000 claims abstract description 27
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 24
- 238000003860 storage Methods 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims description 59
- 239000000463 material Substances 0.000 claims description 21
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 16
- 239000003546 flue gas Substances 0.000 claims description 16
- 229910052799 carbon Inorganic materials 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 239000000523 sample Substances 0.000 claims description 12
- 238000000197 pyrolysis Methods 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 239000012495 reaction gas Substances 0.000 claims description 5
- 239000003575 carbonaceous material Substances 0.000 claims description 4
- 239000012153 distilled water Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000002918 waste heat Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 2
- 238000009776 industrial production Methods 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000003213 activating effect Effects 0.000 description 10
- 238000007599 discharging Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000010000 carbonizing Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/39—Apparatus for the preparation thereof
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/336—Preparation characterised by gaseous activating agents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/34—Carbon-based characterised by carbonisation or activation of carbon
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The preparation device of the activated carbon for the supercapacitor comprises a steam boiler, a nitrogen storage tank, a gas mixing buffer tank, a carbonization and activation reaction kettle and a tail gas incinerator which are sequentially arranged, wherein the carbonization and activation reaction kettle and the tail gas incinerator are used for generating carbonization and activation reactions, the gas mixing buffer tank is respectively communicated with the steam boiler and the nitrogen storage tank, the carbonization and activation reaction kettle is respectively communicated with the gas mixing buffer tank and the tail gas incinerator, the tail gas incinerator is also communicated with the steam boiler, and the charging coefficient of the carbonization and activation reaction kettle is 30-70%. The device can realize large-scale preparation of the activated carbon, the charging coefficient of the carbonization and activation reaction kettle is up to 70%, more precursor raw materials can be loaded at one time, the continuous preparation of the activated carbon is realized by utilizing the synergistic effect of the precursor raw material kettle, the carbonization and activation reaction kettle and the activated carbon receiving kettle, the device has simple structure and convenient operation, and is beneficial to large-scale industrial production.
Description
Technical Field
The invention belongs to the technical field of activated carbon materials, and particularly relates to a preparation device and a preparation method of activated carbon for a supercapacitor.
Background
In the last decade, supercapacitors have been developed into novel energy storage elements, which have the characteristics of high power density, fast charging and discharging speed, long cycle life, wide working temperature range and the like, and have great application prospects in the aspects of electric vehicles, aerospace, national defense science and technology and the like. The activated carbon is a porous carbonaceous adsorption material with abundant pore structures, huge specific surface area and strong adsorption capacity. The activated carbon is the preferred electrode material of the super capacitor due to rich raw material sources, low cost and simple preparation process.
At present, the electrode material of the super capacitor mainly comprises activated carbon, and the preparation methods of the activated carbon comprise a physical activation method, a chemical activation method and a physical and chemical combination method. The activated carbon produced by the chemical method needs to consume a large amount of KOH and ZnCl2Chemical activators such as phosphoric acid have high cost and large pollution, and chemical reagents have high corrosivity to equipment. The physical method mainly adopts CO2Or the water vapor is used as a pore-forming activating agent, the activating reaction temperature is generally higher, but the process flow is relatively simple, the environmental pollution is less, and meanwhile, a large amount of waste heat generated in the activating process can be used for heating a boiler, preparing high-temperature steam, drying raw materials and the like.
Most of Chinese physical activated carbon production enterprises belong to small and medium-sized enterprises, the production scale of the enterprises is not large, carbonization and activation equipment comprises a push plate type tunnel furnace and a rotary furnace, wherein the tunnel furnace is in static reaction, the loading amount of a sagger is low, the reaction is not uniform, compared with the tunnel furnace, an activated carbon precursor in the rotary furnace rolls in a furnace wall and can react with reaction gas sufficiently, the materials at all positions react uniformly, however, the loading coefficient of the rotary furnace is 10-20%, the yield of each batch is low, and the large-scale preparation of the activated carbon is not facilitated.
In view of this, how to develop an activated carbon preparation device and process which are simple in operation, high in efficiency and capable of realizing continuous production functions is a key point of research.
Disclosure of Invention
In view of the above, the present invention provides an apparatus and a method for preparing activated carbon, which are simple in operation, high in efficiency, high in charging coefficient, and capable of realizing continuous production.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a preparation device of activated carbon for a supercapacitor, which comprises a steam boiler, a nitrogen storage tank, a gas mixing buffer tank, a carbonization and activation reaction kettle and a tail gas incinerator which are sequentially arranged, wherein the carbonization and activation reaction kettle and the tail gas incinerator are used for generating carbonization and activation reactions, the gas mixing buffer tank is respectively communicated with the steam boiler and the nitrogen storage tank, the carbonization and activation reaction kettle is respectively communicated with the gas mixing buffer tank and the tail gas incinerator, the tail gas incinerator is also communicated with the steam boiler, and the charging coefficient of the carbonization and activation reaction kettle is 30-70%.
Specifically, still be formed with feed inlet and discharge gate on the carbonization activation reation kettle, the preparation facilities of active carbon for ultracapacitor system still including the precursor raw materials cauldron that is used for storing the precursor raw materials, the active carbon that is used for storing the active carbon that obtains after the reaction receives the material cauldron, precursor raw materials cauldron sets up carbonization activation reation kettle top and with the feed inlet is linked together, the setting of active carbon receives the material cauldron and is in carbonization activation reation kettle below and with the discharge gate is linked together.
Preferably, carbonization activation reation kettle includes activation cauldron barrel, first stirring subassembly and temperature control subassembly, first stirring subassembly sets up on the activation cauldron barrel, the temperature control subassembly sets up in the activation cauldron barrel.
Further preferably, the first stirring assembly comprises a first motor and a first stirring paddle, the first stirring paddle is electrically connected with the first motor, and one end of the first stirring paddle extends into the carbonization activation reaction kettle.
Still further preferably, the temperature control assembly includes an electrical heating controller and at least one first temperature probe.
Preferably, the precursor raw material kettle comprises a raw material kettle barrel, a second water-cooling jacket and a second stirring assembly, wherein the second water-cooling jacket is arranged on the raw material kettle barrel, the second stirring assembly comprises a second motor and a second stirring paddle, the second stirring paddle is electrically connected with the second motor, and one end of the second stirring paddle extends into the raw material kettle barrel.
Preferably, the activated carbon collecting kettle comprises a collecting kettle barrel, a third water-cooling jacket, a third stirring assembly and at least one third temperature measuring probe, wherein the third water-cooling jacket and the third temperature measuring probe are arranged in the collecting kettle barrel, the third stirring assembly comprises a third motor and a third stirring paddle, the third stirring paddle is electrically connected with the third motor, and one end of the third stirring paddle extends into the collecting kettle barrel.
Preferably, a heat-insulating layer is arranged in the gas mixing buffer tank, and the gas mixing buffer tank is communicated with the carbonization activation reaction kettle through a heat-insulating pipeline.
Preferably, the activated carbon receiving kettle keeps inert atmosphere, the preparation device further comprises a flue gas pipeline, the tail gas incinerator and the steam boiler are communicated through the flue gas pipeline, and the gas mixing buffer tank is used for mixing nitrogen and steam.
The second object of the present invention is to provide a method for preparing activated carbon for a supercapacitor, which comprises the following steps:
(1) adding the precursor raw material into the carbonization and activation reaction kettle from the precursor raw material kettle through the feed inlet, and performing the activation and carbonization processes of the precursor raw material to obtain activated carbon and tar-containing pyrolysis gas;
(2) the tar-containing pyrolysis gas enters the tail gas incinerator to be combusted to generate high-temperature flue gas, the high-temperature flue gas is introduced into the steam boiler, waste heat heats distilled water in the steam boiler to generate superheated steam, nitrogen in the nitrogen storage tank and the superheated steam enter the gas mixing buffer tank, and the nitrogen and the superheated steam are mixed to form mixed gas; the mixed gas enters the carbonization activation reaction kettle and is used as the activation reaction gas of the precursor raw material;
(3) and the activated carbon enters the activated carbon receiving kettle and is cooled to obtain an activated carbon product.
Compared with the prior art, the activated carbon preparation device for the supercapacitor can realize large-scale preparation of activated carbon, the charging coefficient of the device reaches up to 70 percent through the design of the carbonization and activation reaction kettle, more precursor raw materials can be loaded at one time, meanwhile, the continuous preparation of the activated carbon is realized by utilizing the synergistic effect of the precursor raw material kettle, the carbonization and activation reaction kettle and the activated carbon receiving kettle, the device is simple in structure and convenient to operate, and the device is beneficial to large-scale industrial production.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
Reference numerals and component parts description referred to in the drawings:
1. a steam boiler; 2. a nitrogen storage tank; 3. a gas mixture buffer tank; 4. carbonizing and activating the reaction kettle; 41. a feed inlet; 42. a discharge port; 43. activating the kettle barrel; 44. a first motor; 45. a first stirring paddle; 5. a tail gas incinerator; 51. emptying the air; 6. a precursor raw material kettle; 61. a raw material kettle barrel; 62. a second motor; 63. a second stirring paddle; 64. a feed inlet of the raw material kettle; 65. a discharge port of the raw material kettle; 7. an active carbon receiving kettle; 71. a material receiving kettle barrel; 72. a third motor; 73. a third stirring paddle; 74. a feeding hole of the material receiving kettle; 75. a discharge port of the material receiving kettle; 8. a heat-insulating pipeline; 9. a flue gas duct.
Detailed Description
The technical solution of the present invention will be clearly and completely described by the following detailed description. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in the attached figure 1, the invention provides a preparation device of activated carbon for a supercapacitor, which comprises a water vapor boiler 1, a nitrogen storage tank 2, a gas mixing buffer tank 3, a carbonization and activation reaction kettle 4 with a feeding hole 41 and a discharging hole 42, a tail gas incinerator 5, a precursor raw material kettle 6, an activated carbon receiving kettle 7, a heat preservation pipeline 8 and a flue gas pipeline 9 which are arranged in sequence.
The gas mixing buffer tank 3 is respectively communicated with the steam boiler 1 and the nitrogen storage tank 2, the carbonization and activation reaction kettle 4 is communicated with the gas mixing buffer tank 3 through a heat insulation pipeline 8, the tail gas incinerator 5 is respectively communicated with the carbonization and activation reaction kettle 4 and the steam boiler 1, the precursor raw material kettle 6 is arranged above the carbonization and activation reaction kettle 4 and is communicated with the feed inlet 41, and the active carbon material receiving kettle 7 is arranged below the carbonization and activation reaction kettle 4 and is communicated with the discharge outlet 42.
The carbonization-activation reaction kettle 4 is used for the precursor raw material to perform carbonization and activation reaction, and the carbonization-activation reaction kettle 4 comprises an activation kettle cylinder 43, a first stirring assembly arranged on the activation kettle cylinder 43, and a temperature control assembly arranged in the activation kettle cylinder 43. The first stirring assembly comprises a first motor 44 and a first stirring paddle 45 connected with the first motor 44, and the end of the first stirring paddle 45 extends into the carbonization activation reaction kettle 4. The temperature control assembly includes an electrical heating controller, at least one first temperature probe.
The activating kettle barrel 43 is conical, the activating kettle barrel 43 can be heated, the feeding hole 41 is arranged on the upper side wall of the activating kettle barrel 43, and the discharging hole 42 is arranged at the bottom of the activating kettle barrel 43. Activation kettle barrel 43 of toper design can adorn more precursor raw materials, and more is favorable to the precursor raw materials to roll under the effect of first stirring subassembly in activation kettle barrel 43 for the contact is more abundant, more is favorable to the abundant of reaction going on. The charging coefficient of the carbonization activation reaction kettle 4 in the invention is 30-70%. Preferably, the charging coefficient of the carbonization activation reaction kettle 4 is 50-60%.
First temperature probe actually has a plurality ofly, distributes in each position of carbonization activation reation kettle 4 to temperature measurement that can be more accurate. In carbonization activation reation kettle 4 is stretched into to first stirring rake 45 end, under the effect of first stirring rake 45, the material in carbonization activation reation kettle 4 can be the rolling motion from top to bottom, realizes the intensive dispersion, and electric heating controller and a plurality of even and intensive first temperature probe that distributes can guarantee that the precursor raw materials in the activation cauldron barrel 43 heats according to the procedure of setting for, guarantee that the abundant carbonization of precursor raw materials and activation. In order to further improve the stirring effect, the paddle of the first stirring paddle 45 is of a downward pressing type long blade structure and is provided with a plurality of long blade structures.
Precursor raw material cauldron 6 is used for storing the precursor raw materials, precursor raw material cauldron 6 includes raw material cauldron barrel 61, the second water-cooling that sets up on raw material cauldron barrel 61 presss from both sides the cover, the second stirring subassembly of setting on raw material cauldron barrel 61, the raw material cauldron feed inlet 64 of setting on raw material cauldron barrel 61 upper portion, the raw material cauldron discharge gate 65 of setting in raw material cauldron barrel 61 lower part, the second stirring subassembly includes second motor 62, the second stirring rake 63 that is connected with second motor 62, second stirring rake 63 end stretches into in the raw material cauldron barrel 61. The precursor raw material kettle 6 is also arranged in a conical shape, and the second stirring paddle 63 is vertically arranged in the raw material kettle cylinder body 61. Preferably, the paddle of the second stirring paddle 63 is a long blade structure of a downward pressing type, and is provided with a plurality of long blade structures for sufficiently dispersing the precursor raw material. Under the action of the stirring paddle, the precursor raw material rolls up and down to realize full dispersion, and the precursor raw material can enter the carbonization activation reaction kettle from the raw material kettle feeding port 64 to complete feeding. In addition, the precursor raw material kettle 6 is kept in inert atmosphere and water-cooled by a jacket, and a second stirring paddle 63 is also arranged for preventing the precursor raw material from being oxidized.
The activated carbon collecting kettle 7 is used for storing activated carbon obtained after reaction, the activated carbon collecting kettle 7 comprises a collecting kettle cylinder 71, a third water-cooling jacket arranged in the collecting kettle cylinder 71, a third stirring assembly, at least one third temperature measuring probe, a collecting kettle feed inlet 74 arranged on the upper part of the collecting kettle cylinder 71, and a collecting kettle discharge outlet 75 arranged on the lower part of the collecting kettle cylinder 71, wherein the third stirring assembly comprises a third motor 72, a third stirring paddle 73 connected with the third motor 72, and an outlet for discharging cooled activated carbon. The activated carbon material receiving kettle 7 is also arranged in a conical shape, and the third stirring paddle 73 is vertically arranged in the material receiving kettle cylinder 71. The active carbon material collecting kettle 7 is used for collecting high-temperature discharge materials of the carbonization and activation reaction kettle 4, the active carbon enters the active carbon material collecting kettle 7 from a discharge port 42 of the carbonization and activation reaction kettle 4 through a feed port 41 of the material collecting kettle, a third water-cooling jacket is used for cooling the high-temperature active carbon discharge materials, a third stirring component carries out up-and-down rolling motion on the high-temperature active carbon discharge materials, and cooling of the high-temperature active carbon discharge materials can be accelerated. In addition, it is preferable to maintain an inert atmosphere in the activated carbon receiver tank 7 in order to ensure that the activated carbon is not oxidized. In order to further improve the stirring effect, the blades of the third stirring paddle 73 are of a downward pressing type long blade structure and are provided with a plurality of long blade structures. And when the temperature of the activated carbon receiving kettle 7 monitored by the third temperature measuring probe is 60-80 ℃, the activated carbon product can be discharged from a discharging port 75 of the receiving kettle. In order to monitor the temperature more accurately, a plurality of third temperature measuring probes are uniformly distributed in the activated carbon material receiving kettle 7.
The tail gas incinerator 5 is communicated with the steam boiler 1 through a flue gas pipeline 9, the tail gas incinerator 5 is used for treating tar-containing pyrolysis gas generated in the carbonization activation reaction kettle 4, the tar-containing pyrolysis gas is preheated by the tail gas incinerator 5 and then is combusted with air to generate high-temperature flue gas, the high-temperature flue gas is guided into the steam boiler 1 through the flue gas pipeline 9, the rest of the heat heats distilled water in the steam boiler 1 to generate superheated steam, the superheated steam and nitrogen provided by the nitrogen storage tank 2 enter the mixed gas buffer tank 3 together, and the mixed gas buffer tank 3 is used for mixing the steam and the nitrogen to form mixed gas. In addition, the tail gas incinerator 5 is provided with a drain port 51 for communicating the tail gas incinerator 5 with the outside air.
The gas mixing buffer tank 3 is used for mixing nitrogen and water vapor to form mixed gas, a heat insulation layer is arranged in the gas mixing buffer tank 3, and the gas mixing buffer tank 3 is communicated with the carbonization activation reaction kettle 4 through a heat insulation pipeline 8. The arrangement of the heat-insulating layer and the heat-insulating pipeline 8 can ensure the high temperature of the mixed gas, so that the mixed gas is used as the activation reaction gas of the precursor raw material, and the full proceeding of the activation reaction is ensured.
The invention provides a preparation method of activated carbon for a super capacitor, which is prepared by using the preparation device of the activated carbon for the super capacitor and comprises the following steps:
(1) adding a precursor raw material into a carbonization and activation reaction kettle 4 from a precursor raw material kettle 6 through a feed inlet 41, and performing the steps of activating and carbonizing the precursor raw material to obtain activated carbon and tar-containing pyrolysis gas;
(2) the tar-containing pyrolysis gas enters a tail gas incinerator 5 to be combusted to generate high-temperature flue gas, the high-temperature flue gas is guided into a steam boiler 1, distilled water in the steam boiler 1 is heated by waste heat to generate superheated steam, nitrogen and the superheated steam in a nitrogen storage tank 2 enter a mixed gas buffer tank 3, and the nitrogen and the superheated steam are mixed to form mixed gas; the mixed gas enters a carbonization activation reaction kettle 4 and is used as the activation reaction gas of the precursor raw material;
(3) and (3) the activated carbon enters the activated carbon material receiving kettle 7, is stirred and cooled to 60-80 ℃, and is discharged from the activated carbon material receiving kettle 7 to obtain an activated carbon product.
The activated carbon preparation device for the supercapacitor can realize large-scale preparation of activated carbon, the charging coefficient of the carbonization and activation reaction kettle 4 is up to 70%, more precursor raw materials can be loaded at one time, and meanwhile, the precursor raw material kettle 6 is used for feeding, and the carbonization and activation reaction kettle 4 and the activated carbon receiving kettle 7 are used for discharging under the synergistic effect, so that continuous preparation of the activated carbon can be realized, the device is simple in structure and convenient to operate, and large-scale industrial production is facilitated.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a preparation facilities of active carbon for ultracapacitor system which characterized in that: the device comprises a steam boiler, a nitrogen storage tank, a gas mixing buffer tank, a carbonization and activation reaction kettle and a tail gas incinerator, wherein the carbonization and activation reaction kettle and the tail gas incinerator are sequentially arranged, the gas mixing buffer tank is respectively communicated with the steam boiler and the nitrogen storage tank, the carbonization and activation reaction kettle is respectively communicated with the gas mixing buffer tank and the tail gas incinerator, the tail gas incinerator is also communicated with the steam boiler, and the charging coefficient of the carbonization and activation reaction kettle is 30-70%.
2. The apparatus for preparing activated carbon for super capacitor as claimed in claim 1, wherein: still be formed with feed inlet and discharge gate on the carbonization activation reation kettle, the preparation facilities of active carbon for ultracapacitor system still including the precursor raw materials cauldron that is used for storing the precursor raw materials, the active carbon receipts material cauldron that is used for storing the active carbon that obtains after the reaction, precursor raw materials cauldron sets up carbonization activation reation kettle top and with the feed inlet is linked together, the setting of active carbon receipts material cauldron is in carbonization activation reation kettle below and with the discharge gate is linked together.
3. The apparatus for preparing activated carbon for a supercapacitor according to claim 2, wherein: carbonization activation reation kettle includes activation cauldron barrel, first stirring subassembly and temperature control subassembly, first stirring subassembly sets up on the activation cauldron barrel, the temperature control subassembly sets up in the activation cauldron barrel.
4. The apparatus for preparing activated carbon for super capacitor as claimed in claim 3, wherein: first stirring subassembly includes first motor and first stirring rake, first stirring rake with first motor electricity is connected mutually, first stirring rake one end stretches into in the carbonization activation reation kettle.
5. The apparatus for preparing activated carbon for super capacitor as claimed in claim 3, wherein: the temperature control assembly includes an electrical heating controller and at least one first temperature probe.
6. The apparatus for preparing activated carbon for a supercapacitor according to claim 2, wherein: precursor raw materials cauldron includes raw materials cauldron barrel, second water-cooling jacket and second stirring subassembly, the second water-cooling jacket sets up on the raw materials cauldron barrel, the second stirring subassembly includes second motor and second stirring rake, the second stirring rake with the second motor electricity is mutually connected, second stirring rake one end is stretched into in the raw materials cauldron barrel.
7. The apparatus for preparing activated carbon for a supercapacitor according to claim 2, wherein: the activated carbon collecting kettle comprises a collecting kettle barrel, a third water-cooling jacket, a third stirring assembly and at least one third temperature measuring probe, wherein the third water-cooling jacket and the third temperature measuring probe are arranged in the collecting kettle barrel, the third stirring assembly comprises a third motor and a third stirring paddle, the third stirring paddle is electrically connected with the third motor, and one end of the third stirring paddle stretches into the collecting kettle barrel.
8. The apparatus for preparing activated carbon for a supercapacitor according to claim 2, wherein: and a heat-insulating layer is arranged in the gas mixing buffer tank, and the gas mixing buffer tank is communicated with the carbonization activation reaction kettle through a heat-insulating pipeline.
9. The apparatus for preparing activated carbon for a supercapacitor according to claim 2, wherein: the active carbon material receiving kettle keeps inert atmosphere, the preparation device further comprises a flue gas pipeline, the tail gas incinerator and the steam boiler are communicated through the flue gas pipeline, and the gas mixing buffer tank is used for mixing nitrogen and steam.
10. A method for preparing activated carbon for a supercapacitor by using the apparatus for preparing activated carbon for a supercapacitor according to any one of claims 2 to 9, comprising the steps of:
(1) adding the precursor raw material into the carbonization and activation reaction kettle from the precursor raw material kettle through the feed inlet, and performing the activation and carbonization processes of the precursor raw material to obtain activated carbon and tar-containing pyrolysis gas;
(2) the tar-containing pyrolysis gas enters the tail gas incinerator to be combusted to generate high-temperature flue gas, the high-temperature flue gas is introduced into the steam boiler, waste heat heats distilled water in the steam boiler to generate superheated steam, nitrogen in the nitrogen storage tank and the superheated steam enter the gas mixing buffer tank, and the nitrogen and the superheated steam are mixed to form mixed gas; the mixed gas enters the carbonization activation reaction kettle and is used as the activation reaction gas of the precursor raw material;
(3) and the activated carbon enters the activated carbon receiving kettle and is cooled to obtain an activated carbon product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010413055.0A CN111533128A (en) | 2020-05-15 | 2020-05-15 | Preparation device and preparation method of activated carbon for supercapacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010413055.0A CN111533128A (en) | 2020-05-15 | 2020-05-15 | Preparation device and preparation method of activated carbon for supercapacitor |
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