CN205803012U - A kind of gas black prepares the system of activated carbon - Google Patents
A kind of gas black prepares the system of activated carbon Download PDFInfo
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- CN205803012U CN205803012U CN201620348594.XU CN201620348594U CN205803012U CN 205803012 U CN205803012 U CN 205803012U CN 201620348594 U CN201620348594 U CN 201620348594U CN 205803012 U CN205803012 U CN 205803012U
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Abstract
This utility model relates to a kind of gas black and prepares the system of activated carbon, including reative cell, heat recovery unit, gas-solid separator, gas trap and activation unit；Described reative cell, heat recovery unit and gas-solid separator are sequentially connected；The solid outlet of described gas-solid separator is connected with described activation unit, and gas outlet is connected with described gas trap；Described heat recovery unit is provided with carbon dioxide preheating channel；The carbon dioxide outlet of described gas trap is connected with the gas access of described activation unit through described carbon dioxide preheating channel.System synthesis described in the utility model utilizes gas by partial oxidation of natural to prepare the white carbon black and carbon dioxide produced during acetylene and synthesis gas, improves the energy utilization rate of system, and activation process is controlled, can prepare the activated carbon of high-specific surface area.
Description
Technical field
This utility model relates to a kind of gas black, and particularly relate to that a kind of gas black prepares activated carbon is
System, belongs to chemical production field.
Background technology
Gas by partial oxidation of natural produces acetylene and synthesis gas is current main acetylene production process in addition to carbide, wherein
Acetylene is a kind of basic chemical industry raw material, and the final products of its series of products manufacture almost relate to all of application, including closing
Become the industry-by-industries such as material, coating, pesticide, fuel, medicine, auxiliary agent, solvent, spice；Synthesis gas main component includes an oxidation
Carbon, carbon dioxide, hydrogen etc., additionally possibly together with a small amount of methane, can be used for producing synthesis ammonia, methanol, carbamide etc. or being used as gas
The reducing gases (carbon monoxide and hydrogen) of based shaft kiln directly reduced iron etc..Gas by partial oxidation of natural produces acetylene and synthesis gas process
In, substantial amounts of white carbon black can be produced.
Activated carbon is a kind of microcellular structure with prosperity and the special porous Carbon Materials of superhigh specific surface area.As one
Kind traditional and novel Carbon Materials, has that specific surface area is big, conduct electricity very well, chemical stability is good, regenerability is preferable, suction
Attached capacity is big and insoluble in features such as most solvents, be therefore early widely used to chemical industry, the enrichment of gas and
Separation, food processing, the electrode material of ultracapacitor, medicine are refined, catalyst and catalyst carrier, military chemistry protection etc.
Field.The pore structure size difference of activated carbon is very big, and different pore structures has different functions, hole can be divided into three
Class: the diameter of hole is micropore less than 2nm；The diameter of hole between 2～50nm for mesopore；Pore diameter more than 50nm's is
Macropore.
Method for preparation of active carbon mainly includes physical activation method and chemical activation method, and physical activation method generally refers to necessarily
At a temperature of, carbonized material is reacted with activated gas such as steam, carbon dioxide, oxygen or their gaseous mixtures, makes carbonization
One class activation method of material activation.Chemical activation method refers to the class method utilizing chemical reagent to activate activation object.
Chemical activation method activation temperature is lower than physical activation method, easily forms thin pore structure, but chemical activation is to equipment corrosion
Greatly, polluting environment, remain chemical drugs activator in its activated carbon prepared, application aspect is restricted.With chemical activation
Comparing, the physically activated production technology preparing activated carbon is simple, cleaning, the problem that there is not equipment corrosion and environmental pollution, system
The activated carbon obtained need not clean, and can be used directly.
Utility model content
The purpose of this utility model is to provide a kind of system utilizing gas black to prepare activated carbon.
Specifically, described system includes reative cell, heat recovery unit, gas-solid separator, gas trap and activation
Unit；
Described reative cell, heat recovery unit and gas-solid separator are sequentially connected；
The solid outlet of described gas-solid separator is connected with described activation unit, gas outlet and described gas trap phase
Even；
Described heat recovery unit is provided with carbon dioxide preheating channel；The carbon dioxide outlet warp of described gas trap
Cross described carbon dioxide preheating channel to be connected with the gas access of described activation unit.
The system that this utility model provides includes activation unit.In described activation unit, separate through gas trap
The solid product white carbon black of gas-solid separator isolated, as activator, is lived at 800～950 DEG C by the carbon dioxide arrived
Change, obtain micropore prosperity, the activated carbon of high-specific surface area.Using and directly reclaim the white carbon black obtained as raw material, its particle diameter is very
Uniformly, it is suitable as activating raw material and prepares high grade activated carbon, and avoid white carbon black that gas separates as offal treatment, it is achieved
The purpose of solid waste resource utilization.
In this utility model, described reative cell includes that gasification furnace, natural gas and oxygen are preheated after 500～700 DEG C, logical
React in crossing the overhead nozzle entrance stove of described gasification furnace.Natural gas preheating can be provided with logical on the outer wall of described gasification furnace
Road, the gas outlet of described preheating channel is connected to the feed(raw material)inlet of described gasification furnace.
The outlet of described gasification furnace is connected directly to described heat recovery unit.The recyclable gasification of described heat recovery unit
The heat of stove synthesis gas, for regenerator section carbon dioxide, carbon dioxide enters activation after being preheated to higher temperature
The reaction of activated carbon is prepared in unit participation.
Specifically, described heat recovery unit preferably includes the one-level heat reclaim unit that is sequentially connected and two grades of heats
Retracting device, the outlet of described two grades of heat reclaim units is connected with described gas-solid separator.Described one-level, two grades of heat recovery
Oxygen preheating channel and carbon dioxide preheating channel it is respectively equipped with, to guarantee that oxygen and carbon dioxide are real with product on device
Now reverse heat exchange.
Described one-level heat reclaim unit is provided with oxygen preheating channel；The outlet of described oxygen preheating channel is connected to institute
State the feed(raw material)inlet of gasification furnace.Oxygen is preheated after carrying out reverse heat exchange with product, enters reative cell and participates in reaction.
As a kind of connected mode, the outlet of described one-level oxygen preheating channel and the feed(raw material)inlet phase of described gasification furnace
Even；The described entrance of two grade carbon-dioxide preheating channels is connected with the carbon dioxide outlet of described gas trap；Described one-level
The outlet of oxygen preheating channel is connected by the entrance of product with described two grade carbon-dioxide preheating channels.
Wherein, described one-level heat reclaim unit can use tubular heat exchange device, described two grades of heat reclaim units to adopt
With cellular regenerative apparatus or rotation commutation regenerative apparatus.
The product generated in reative cell, after heat recovery, enters described gas-solid separator and carries out gas solid separation, obtain respectively
To gaseous product and solid product；Wherein, described gaseous product mainly includes that acetylene and synthesis gas, described solid product mainly wrap
Include white carbon black.The solid outlet of described gas-solid separator is connected with the solid inlet of activating chamber, the titanium dioxide of described gas trap
Carbon outlet or/and described carbon dioxide preheating device, is connected to the air inlet of activating chamber through described carbon dioxide preheating channel.
In this utility model, described gas trap can use pressure-swing absorber, is separated by pressure-variable adsorption, can obtain respectively
To carbon dioxide and reducibility gas.
In this utility model, described activation unit can include activating chamber and the finished room being sequentially connected with.In connection procedure,
The solid outlet of described activating chamber is connected to the solid inlet of described finished room.Carbon dioxide preheating can be set on described finished room
Device, can carry out pre-heating temperature elevation to partial CO 2 while lowering the temperature activated carbon.Specifically, described gas trap
Carbon dioxide outlet is connected with the entrance of described carbon dioxide preheating device, and the outlet of described carbon dioxide preheating device is with described
The gas access of activating chamber is connected.
In this utility model, the carbon dioxide outlet of described gas trap is respectively through described carbon dioxide preheating device
It is connected with the gas access of described activating chamber with described carbon dioxide preheating pipe, can fully reclaim gas by partial oxidation of natural process
Middle generation and activating chamber's product high temperature active charcoal heat of high temperature heating carbon dioxide, improve carbon dioxide enter activating chamber
Temperature, it is not necessary to outward for the energy, i.e. may be implemented in activated carbon black at 800～950 DEG C and prepares activated carbon, improve activation efficiency and thermal effect
Rate.
System described in the utility model can also include vaporizer.The exhanst gas outlet of described activation unit and described vaporizer
Being connected, the exhanst gas outlet of the most described activating chamber is connected with described vaporizer.Flue gas after priming reaction and part are from gas-solid
The white carbon black of separator collection carries out gasification reaction at described vaporizer, prepares combustion gas further, makes full use of gas solid separation and obtains
Solid white carbon black and activation after discharge waste gas prepare combustion gas, it is achieved the purpose of recovery and reuse of waste.
In actual production process, there is partial oxidation reaction in natural gas and oxygen, reaction gained is high in sending into gasification furnace
Temperature product carries out heat exchange through two-stage heat exchanger, cooling syngas after reclaiming heat, is separated into gaseous product and solid product；Institute
Stating gaseous product and be separated into reducing gases and carbon dioxide through pressure-variable adsorption, this carbon dioxide divides two parts respectively through activating chamber
Product high temperature active charcoal and gasification furnace high-temperature synthesis gas heat exchange are also preheated；After described solid product enters activating chamber and preheats
Carbon dioxide reaction activation prepares activated carbon.Flue gas after priming reaction can enter vaporizer and collect from gas-solid separator with part
White carbon black send into vaporizer and carry out gasification reaction, prepare combustion gas further, reduce the discharge capacity of carbon dioxide.
The method utilizing device described in the utility model to prepare activated carbon, comprises the steps:
1), after natural gas and oxygen being preheated to 500～700 DEG C, towards reative cell, reaction obtains 1200～1500 DEG C
High-temperature product；
2) described high-temperature product is passed through gas-solid separator after heat reclaim unit is lowered the temperature, and obtains gaseous product and white carbon black,
Described gaseous product leads to gas trap, and described white carbon black enters activation unit；
3) carbon dioxide in described gaseous product through gas trap separate after, through carbon dioxide preheating channel or/and
Carbon dioxide preheating device is passed through activation unit after being preheated to 800～950 DEG C, reacts generation activated carbon with white carbon black therein.
Can also comprise the steps: what the entrance vaporizer of the flue gas after priming reaction and part were collected from gas-solid separator
White carbon black is sent into vaporizer and is carried out gasification reaction, prepares combustion gas further, reduces the discharge capacity of carbon dioxide.
Device described in the utility model has the advantages that
(1) white carbon black and carbon dioxide produced during gas by partial oxidation of natural prepares acetylene and synthesis gas is comprehensively utilized,
Improve the energy utilization rate of system；
(2) utilizing carbon dioxide as activator and prepare activated carbon, activation process is controlled, can prepare the work of high-specific surface area
Property charcoal；
(3) for compared to chemical activation method, utilizing carbon dioxide as activator, activation process is little to equipment corrosion,
Environmentally safe；
(4) hydrocarbon (carbon monoxide) produced in recycling activation process, and product high temperature active charcoal
Heat, improves the energy and the heat utilization ratio of system；
(5) the synthesis gas temperature that gasification furnace reaction generates is high, carbon dioxide can be brought up to high temperature after two-stage heat exchange so that
Before being mixed into activating chamber, carbon dioxide reaches activation temperature, meets activation requirement；Activity just can be directly prepared without outer heat supply
Charcoal, can fully reclaim the heat of whole system；
(6) after making full use of the solid white carbon black and activation that gas solid separation obtains, the waste gas of discharge prepares combustion gas, it is achieved discarded
The purpose that thing recycles；
(7) white carbon black produced during this utility model utilizes gas by partial oxidation of natural prepares activated carbon, does not contains in raw material
Various oxides (ash such as silicon, aluminum) exist, and are relatively beneficial to obtain the activated carbon that micropore is flourishing.
Accompanying drawing explanation
Fig. 1 is that gas black prepares activated carbon system；In figure: 1, gasification furnace；3, heat reclaim unit a；4, oxygen is pre-
The passage of heat；5, gas-solid separator；6, natural gas preheating channel；7, gas trap；8, activating chamber；9, finished room；10, gasification
Room；11, carbon dioxide preheating device；12, heat reclaim unit b；13, carbon dioxide preheating channel.
Detailed description of the invention
Following example are used for illustrating this utility model, but are not limited to scope of the present utility model.
Embodiment 1
The present embodiment relates to a kind of system utilizing gas black to prepare activated carbon, shown in its structure division reference Fig. 1,
Including gasification furnace 1, heat recovery unit, gas-solid separator 5, gas trap 7 and activation unit；
Described gasification furnace 1, heat recovery unit and gas-solid separator 5 are sequentially connected；Described heat recovery unit is provided with
Carbon dioxide preheating channel 13；
Described activation unit includes activating chamber 8 and the finished room 9 being sequentially connected with, and described finished room 9 is provided with carbon dioxide
Preheating device 11；
The solid outlet of described gas-solid separator 5 is connected with the solid inlet of described activating chamber 8, gas outlet and described gas
The entrance of body separator 7 is connected；
The carbon dioxide outlet of described gas trap 7 is respectively through described carbon dioxide preheating channel 13 and described dioxy
Mdi prepolymer thermal 11 is connected with the gas access of described activating chamber 8.
The present embodiment passes through carbon dioxide preheating channel 13 and described carbon dioxide preheating device 11, reclaims natural gas partial
That produce in oxidizing process and activating chamber's product high temperature active charcoal heat of high temperature heating carbon dioxide, improves carbon dioxide and enters
The temperature of activating chamber, it is not necessary to outward for the energy, i.e. may be implemented in activated carbon black at 800～950 DEG C and prepares activated carbon, improves activation effect
Rate and the thermal efficiency.
Embodiment 2
The present embodiment relates to a kind of system utilizing gas black to prepare activated carbon, shown in its structure division reference Fig. 1,
Compared with Example 1, its difference is: described heat recovery unit includes heat reclaim unit a 3 and the heat being sequentially connected
Retracting device b 12；
It is respectively equipped with oxygen preheating channel 4 and titanium dioxide on described heat reclaim unit a 3 and heat reclaim unit b 12
Carbon preheating channel 13；The entrance of described carbon dioxide preheating channel 13 is connected with the carbon dioxide outlet of described gas trap 7,
Outlet is connected with the gas access of described activating chamber 8；The outlet of described oxygen preheating channel 4 is connected to the former of described gasification furnace 1
Material entrance.
Wherein, described heat reclaim unit a 3 is tubular heat exchange device, and described heat reclaim unit b 12 is cellular storage
Thermal or rotation commutation regenerative apparatus.
The synthesis gas temperature generated due to gasification furnace reaction is high, and the present embodiment passes through two-stage heat reclaim unit, can be abundant
Realize the preheating of carbon dioxide so that before being mixed into activating chamber, carbon dioxide reaches activation temperature, meet activation requirement；Without
Outer heat supply just can directly prepare activated carbon, can fully reclaim the heat of whole system.
Embodiment 3
The present embodiment relates to a kind of system utilizing gas black to prepare activated carbon, its structure as it is shown in figure 1, with enforcement
Example 2 is compared, and its difference is: described system also includes vaporizer 10；
The solid outlet of described gas-solid separator 5 respectively with described activating chamber 8 and the solid inlet phase of described vaporizer 10
Even；
The exhanst gas outlet of described activating chamber 8 is connected with the smoke inlet of described vaporizer 10.
The present embodiment, by arranging vaporizer, can make full use of discharge after the solid white carbon black and activation that gas solid separation obtains
Waste gas prepares combustion gas, it is achieved the purpose of recovery and reuse of waste.
Embodiment 4
The present embodiment relates to the use of the method that the system described in embodiment 2 prepares activated carbon, comprises the steps:
1) after natural gas and oxygen being preheated to 500～700 DEG C in natural gas preheating channel and oxygen preheating channel, logical
Toward gasification furnace, reaction obtains the high-temperature product of 1200～1500 DEG C；
2) described high-temperature product is passed through gas-solid after heat reclaim unit a and heat reclaim unit b reclaim heat successively and divides
From device, obtaining gaseous product and white carbon black, described gaseous product leads to gas trap, and described white carbon black enters activating chamber；
3) reducing gases such as the acetylene in described gaseous product, carbon monoxide and hydrogen are collected, will separate at gas
In device, isolated carbon dioxide each leads into carbon dioxide preheating pipe and carbon dioxide preheating device, logical after being sufficiently heated
Entering activating chamber's mixing, the carbon dioxide of 880～930 DEG C obtained after above-mentioned preheating reacts with the white carbon black in activating chamber, generates
Specific surface area is about 3480m2The activated carbon of/g.
Embodiment 5
The present embodiment relates to the use of the method that the system described in embodiment 3 prepares activated carbon, compared with Example 4, also wraps
Include following steps:
4) flue gas produced after priming reaction being passed through vaporizer, the white carbon black collected from gas-solid separator with part is gasifying
Room carries out gasification reaction, prepares combustion gas, reclaims heat simultaneously.
Although, used general explanation, detailed description of the invention and test, this utility model made detailed
Describing, but on the basis of this utility model, can make some modifications or improvements it, this is aobvious to those skilled in the art
And be clear to.Therefore, these modifications or improvements on the basis of without departing from this utility model spirit, belong to this practicality
Novel claimed scope.
Claims (8)
1. a gas black prepares the system of activated carbon, it is characterised in that include reative cell, heat recovery unit, gas-solid
Separator, gas trap and activation unit；
Described reative cell, heat recovery unit and gas-solid separator are sequentially connected；
The solid outlet of described gas-solid separator is connected with described activation unit, and gas outlet is connected with described gas trap；
Described heat recovery unit is provided with carbon dioxide preheating channel；The carbon dioxide outlet of described gas trap is through institute
State carbon dioxide preheating channel to be connected with the gas access of described activation unit.
System the most according to claim 1, it is characterised in that described heat recovery unit includes the one-level heat being sequentially connected
Amount retracting device and two grades of heat reclaim units；Described activation unit includes activating chamber and the finished room being sequentially connected with；
Oxygen preheating channel and carbon dioxide preheating channel it is respectively equipped with on described firsts and seconds heat reclaim unit；Described two
The entrance of carbonoxide preheating channel is connected with the carbon dioxide outlet of described gas trap, described carbon dioxide preheating channel
Outlet is connected with the gas access of described activating chamber.
System the most according to claim 2, it is characterised in that described reative cell includes that gasification furnace, described one-level heat return
Receiving apparatus is provided with oxygen preheating channel, and the outlet of described oxygen preheating channel is connected to the feed(raw material)inlet of described gasification furnace.
System the most according to claim 2, it is characterised in that described one-level heat reclaim unit is tubular heat exchange device,
Described two grades of heat reclaim units are cellular regenerative apparatus or rotation commutation regenerative apparatus.
5. according to the system described in Claims 1 to 4 any one, it is characterised in that described activation unit includes being sequentially connected with
Activating chamber and finished room, described finished room is provided with carbon dioxide preheating device；
The solid outlet of described gas-solid separator is connected with described activating chamber solid inlet；
The carbon dioxide outlet of described gas trap is pre-respectively through described carbon dioxide preheating channel and described carbon dioxide
Thermal is connected with the gas access of described activating chamber.
6. according to the system described in Claims 1 to 4 any one, it is characterised in that described gas trap is pressure-variable adsorption
Tower.
7. according to the system described in Claims 1 to 4 any one, it is characterised in that described reative cell includes gasification furnace, described
The outer wall of gasification furnace is provided with natural gas preheating channel, and the gas outlet of described preheating channel is connected to the raw material of described gasification furnace and enters
Mouthful.
8. according to the system described in Claims 1 to 4 any one, it is characterised in that described system also includes vaporizer；Described
Activation unit includes activating chamber and the finished room being sequentially connected with；
The solid outlet of described gas-solid separator solid inlet with described activating chamber and described vaporizer respectively is connected；
The exhanst gas outlet of described activating chamber is connected with the smoke inlet of described vaporizer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620348594.XU CN205803012U (en) | 2016-04-22 | 2016-04-22 | A kind of gas black prepares the system of activated carbon |
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| CN201620348594.XU CN205803012U (en) | 2016-04-22 | 2016-04-22 | A kind of gas black prepares the system of activated carbon |
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| CN205803012U true CN205803012U (en) | 2016-12-14 |
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| CN201620348594.XU Expired - Fee Related CN205803012U (en) | 2016-04-22 | 2016-04-22 | A kind of gas black prepares the system of activated carbon |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112745700A (en) * | 2021-01-13 | 2021-05-04 | 无锡东恒新能源科技有限公司 | Method and apparatus for producing carbon black |
-
2016
- 2016-04-22 CN CN201620348594.XU patent/CN205803012U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112745700A (en) * | 2021-01-13 | 2021-05-04 | 无锡东恒新能源科技有限公司 | Method and apparatus for producing carbon black |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 Termination date: 20210422 |
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| CF01 | Termination of patent right due to non-payment of annual fee |