CN103723727B - A kind of activated coke preparation system and method - Google Patents
A kind of activated coke preparation system and method Download PDFInfo
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Abstract
The invention discloses a kind of activated coke preparation system and method, this system comprises pyrolysis oven, the burnt outlet of pyrolysis of pyrolysis oven is connected with coke dry quenching furnace entrance, the burnt outlet of cooling pyrolysis of coke dry quenching furnace is connected with disintegrating machine, disintegrating machine outlet is connected with dry method cull eliminator, and the burnt outlet of pyrolysis of dry method cull eliminator is connected with screening machine, and the large granular materials outlet of screening machine is communicated with activation furnace charging aperture, the small particles material outlet of screening machine is connected with forming machine, and forming machine discharging opening is communicated with activation furnace charging aperture; After the burnt fragmentation of pyrolysis that the present invention produces pulverized coal pyrolysis, can make activated coke through moulding, activation, compare traditional handicraft saved energy consumption large, produce and pollute great carbonization process, treatment process is simplified, reduce production cost, solved existing activated coke preparation system and PROCESS FOR TREATMENT complex procedures, length consuming time, energy consumption is large, cost is high and the problem such as seriously polluted.
Description
Technical field
The invention belongs to and coal chemical technology, be specifically related to a kind of activated coke preparation system and method.
Background technology
Active carbon is a kind of good porous adsorbing material, has unique pore structure and absorption property, extensivelyBe applied to the processes such as purification of water quality, exhaust-gas treatment and Catalyst Production, but active carbon is expensive, machinery strongSpend low.
Compared with active carbon, activated coke has overcome that active carbon price is high, mechanical strength is low, the shortcoming of easy pulverizing,There is good absorption and catalytic performance, stable chemical performance, and can regenerate, can reuse,Environmental Water, gas pollution control field, replace active carbon by activated coke, has actual meaning. TraditionalThe preparation method of activated coke is taking raw coal as matrix, and raw coal is through the treatment process such as coal blending or alkali cleaning, with binding agent coalTar mixes, and forms through processes such as extrusion modling, charing, activation and modifications. Preparation process length consuming time, energyConsumption is large, cost is high, and charing simultaneously and activation process can cause larger pollution.
Summary of the invention
The object of the invention is to overcome prior art defect, and a kind of activated coke preparation system and method are provided, and separatesTraditional activated coke preparation method's process of determining length consuming time, energy consumption is large, cost is high and pollute large problem.
For achieving the above object, the present invention adopts following scheme:
A kind of activated coke preparation system, comprises pyrolysis oven, the burnt outlet of pyrolysis and the coke dry quenching furnace entrance of pyrolysis ovenConnect, the burnt outlet of cooling pyrolysis of coke dry quenching furnace is connected with disintegrating machine, and disintegrating machine outlet is connected with dry separationMachine, the burnt outlet of pyrolysis of dry method cull eliminator is connected with screening machine, large granular materials outlet and the activation of screening machineStove charging aperture is communicated with, and the small particles material outlet of screening machine is connected with forming machine, forming machine discharging opening and activationStove charging aperture is communicated with.
The gas vent of described coke dry quenching furnace is connected with deduster, and deduster gas vent is through heat exchanger and threewayConnect, threeway two exports respectively and is communicated with coke dry quenching furnace cooling gas inlet and activation furnace activated gas entrance,Heat exchanger steam (vapor) outlet is communicated with activation furnace steam inlet, and the outlet of deduster dust enters with dry method cull eliminator raw materialMouth is communicated with.
Described pyrolysis oven pyrolysis oil gas vent is connected with gas-liquid separator, and gas-liquid separator liquid outlet is connected withTar separator.
Described gas-liquid separator gas vent is communicated with desulfurization and denitrification reaction device, the outlet of the activated coke of activation furnace withThe catalyst inlet of desulfurization and denitrification reaction device is communicated with.
Described activation furnace gas vent is connected with condenser.
A kind of activated coke preparation method, comprises the following steps:
1) fine coal is sent into pyrolysis in pyrolysis oven, and high temperature pyrolysis Jiao that pyrolysis obtains sends in coke dry quenching furnace;
2) high temperature pyrolysis Jiao is broken in coke dry quenching furnace is sent into disintegrating machine after inert gas is cooling;
3) pyrolysis Jiao after fragmentation enters dry method cull eliminator and removes high-ash part through sorting, low ash content pyrolysisBurnt through screening machine screening, wherein the pyrolysis breeze of particle diameter < 2mm is 2-13mm with particle diameter after forming machine mouldingLarge particle diameter pyrolysis Jiao enter in activation furnace activation and obtain activated coke.
Described coke dry quenching furnace gas vent connects deduster, and the quenching gas that coke dry quenching furnace is discharged enters dedusterAfter dedusting, send into heat exchanger and carry out heat exchange with the recirculated water that enters heat exchanger, after gas cooled through a threeway partSend into activation furnace and return to coke dry quenching furnace and recycle as activated gas, another part, recirculated water is through heat exchange literAfter temperature, be converted into steam and enter activation furnace as activated gas.
In described step 3), wherein in the pyrolysis breeze of particle diameter < 2mm, adding mass ratio is the CaO of 1-10%And Fe2O3Large particle diameter pyrolysis Jiao who is 2-13mm with particle diameter after forming machine moulding enters in activation furnace and activatesObtain activated coke.
The pyrolysis oil pneumatic transmission that described pyrolysis oven pyrolysis produces enters gas-liquid separator separates and obtains pyrolysis gas and thick burntOil, pyrolysis gas is sent in desulfurization and denitrification reaction device, since self-activation stove activation obtain activated coke as catalyst,Remove the H in pyrolysis gas2S、NH3Be purified pyrolysis gas.
Described activation furnace gas vent is connected with condenser, and the admixture of gas that activation furnace activation produces is sent into coldIn condenser, obtain pure hydrogen-rich gas through condensation except anhydrating.
After the burnt fragmentation of pyrolysis that the present invention produces pulverized coal pyrolysis, can make activated coke, phase through moulding, activationThan traditional handicraft saved energy consumption large, produce and pollute great carbonization process, treatment process is simplified, and fallsLow production cost, solves existing activated coke preparation system and PROCESS FOR TREATMENT complex procedures, length consuming time, energy consumptionThe problem such as greatly, cost is high and seriously polluted.
The present invention has following beneficial effect compared to existing technology:
(1) taking pyrolysis Jiao after pyrolysis of coal as raw material, obtain qualified activated coke raw materials, make high-ashThe burnt resource of pyrolysis is fully used;
(2) be provided with screening machine, the processing of burnt pyrolysis of different-grain diameter branch processed, save processing cost,Can obtain the activated coke product of different size simultaneously;
Further, also have the following advantages:
(1) quenching process and the coupling of activated coke preparation process, the steam that quenching produces mixes work with inert gasFor activator prepared by activated coke, not only accomplish heat energy recycle, and greatly reduced activated cokePreparation cost;
(2) the burnt forming process of pyrolysis adds CaO and Fe2O3Deng additive, by-product in the time that activated coke activatesHydrogen, the activated coke making is as the catalyst of pyrolysis gas desulphurization denitration, and gained activated coke has the H of removing2S、NH3Activity, remove the H in pyrolysis gas2S、NH3Be purified pyrolysis gas.
Brief description of the drawings
Fig. 1 is activated coke preparation technology schematic flow sheet;
Fig. 2 is the activated coke preparation technology's schematic flow sheet after improving;
In figure: 1-pyrolysis oven 2-coke dry quenching furnace 3-deduster 4-disintegrating machine 5-dry method cull eliminator 6-screening machine7-forming machine 8-heat exchanger 9-activation furnace 10-threeway 11-gas-liquid separator 12-tar separator 13-desulfurizationThe burnt 23-of pyrolysis of Benitration reactor 14-condenser 20-fine coal 21-oil gas product 22-high temperature supplements indifferent gasThe burnt 27-dedusting of body 24-mixed inert gas 25-quenching gas 26-cooling pyrolysis quenching gas 28-pyrolysisThe cooling quenching gas of the broken pyrolysis of the coke powder dirt 29-burnt 31-recirculated water 32-of burnt 30-mixed pyrolysis 33-circulationThe large particle diameter of the inert gas 34-activation inert gas 35-steam 36-burnt 38-of the low ash content pyrolysis of lime-ash 37-The burnt particle 42-of the burnt 41-mixed pyrolysis of pyrolysis Jiao (2-13mm) 39-pyrolysis breeze (< 2mm) 40-moulding pyrolysisAdmixture of gas 43-activated coke 44-pyrolysis gas 45-crude tar oil 46-water 47-coal tar 48-sells activated coke49-part activated coke 50-purifies pyrolysis gas 51-gaseous product (being rich in H2, CO etc.) 52-condensed water A-Pyrolysis system B-quench system C-separation system D-activated coke preparation system E-gas purge system F-gasBody piece-rate system.
Detailed description of the invention
Describe the present invention below in conjunction with the drawings and specific embodiments:
As shown in Figure 1, activated coke preparation system of the present invention comprises 4 systems, and A is pyrolysis system, BFor quench system, C is separation system, and D is activated coke preparation system. Pyrolysis system A comprise pyrolysis oven 1,Gas-liquid separator 11, tar separator 12; Quench system B comprises coke dry quenching furnace 2, deduster 3, heat exchangeDevice 8 and threeway 10; Separation system C comprises disintegrating machine 4, dry method cull eliminator 5 and screening machine 6; Activated cokePreparation system D comprises forming machine 7 and activation furnace 9.
In pyrolysis system A, pyrolysis oven 1 has two outlets, and wherein oil gas product 21 exports and gas-liquid separator11 entrances are connected, burnt 22 outlets of pyrolysis that another outlet is high temperature; Gas-liquid separator 11 has two outlets,One of them exports for pyrolysis gas 44, and another crude tar oil 45 outlets are connected with tar separator 12 entrances,Tar separator 12 top exits are that pyrolysis waste water 46 exports, and outlet at bottom is that coal tar 47 exports. QuenchingIn system B, coke dry quenching furnace 2 has two outlets, wherein top quenching gas 25 outlets and deduster 3 entrancesBe connected, burnt 26 outlets of bottom coohng pyrolysis are connected with disintegrating machine 4 entrances; Deduster 3 has two outlets,27 outlets of top dedusting quenching gas are connected with heat exchanger 8 entrances, and bottom is that pyrolysis coke powder dirt 28 exportsBe connected with dry method cull eliminator 5 entrances; Heat exchanger 8 has two outlets, and wherein cooling quenching gas 32 exportsBe connected with threeway 10 entrances, another outlet is connected with activation furnace 9 steam inlets for steam 35 exports;After mixing with topping up 23, circulated inert gas 33 outlets of threeway 10 enter in coke dry quenching furnace 2,Another outlet exports for activating inert gas 34. In separation system C, disintegrating machine 4 exports and dry method cull eliminator5 entrances are connected; Dry method cull eliminator 5 has two outlets, wherein directly outer row of a part of lime-ash 36, anotherBurnt 37 outlets of low ash content pyrolysis are connected with screening machine 6 entrances. In activated coke preparation system D, forming machine 7Outlet is connected with activation furnace 9 entrances, and activation furnace 9 has two outlets, produces respectively admixture of gas 42 HesActivated coke 43.
Coke dry quenching furnace in pyrolysis system A in burnt 22 outlets of the pyrolysis of pyrolysis oven bottom high temperature and quench system BThe burnt entrance of 2 pyrolysis is connected; Burnt 26 outlets of cooling pyrolysis of quench system B and the disintegrating machine of separation system C4 entrances are connected, and pyrolysis coke powder dirt 28 outlets of the deduster 3 of quench system B are broken with separation system C'sBroken machine 4 exports after broken pyrolysis burnt 29 mixes and is connected with dry method cull eliminator 5 entrances; Separation system C sieveThe large particle diameter pyrolysis burnt 38 that extension set 6 exports and moulding pyrolysis Jiao 40 of activated coke preparation system D are mixed into mixedClose the burnt particle 41 of pyrolysis, in activated coke preparation system D, have three entrances, one of them entrance and quench systemActivation inert gas 34 outlet of B heat exchanger 8 is connected, another entrance respectively with screening machine 6 bulky grain heat7 outlets are connected with forming machine to separate burnt outlet.
Based on the activated coke preparation method of above system, its technological process is as follows:
Fine coal 20 is sent in pyrolysis oven 1 after the middle low temperature pyrogenation of 500-800 DEG C, and oil gas product 21 is the end of byGas-liquid separator 11 is sent in portion's outlet, obtains pyrolysis gas 44 and crude tar oil 45 through gas-liquid separation, and crude tar oil entersEnter the rear separation of tar separator 12 and obtain water 46 and product coal tar 47; Solid product high temperature after pyrolysisPyrolysis Jiao 22 sends into coke dry quenching furnace 2, after inert gas is cooling, and the quenching of discharging from coke dry quenching furnace 2 topsGas 25 enters deduster 3, and the quenching gas 2 after dedusting is sent into heat exchanger 8, carries out with recirculated water 31Fully, after heat exchange, after gas cooled, through threeway 10, a part is sent into the activation furnace of activated coke preparation system D,Another part returns to mix with topping up 23 and sends into coke dry quenching furnace 2 and recycle, and recirculated water is through heat exchangeAfter intensification, be converted into the activation furnace that steam 35 enters activated coke preparation system D; Coke dry quenching furnace 2 outlet at bottomsThe burnt pyrolysis coke powder dirt 28 with deduster 3 bottoms of the pyrolysis of cooling pyrolysis Jiao 26 after disintegrating machine 4 fragmentationsBe mixed into dry method cull eliminator 5, remove high-ash part through sorting, low ash content pyrolysis Jiao 37 is through screening machine6 screenings, the pyrolysis breeze 39 of wherein < 2mm after forming machine 7 moulding with the large particle diameter pyrolysis of 2-13mmBurnt 38 enter activation furnace 9, after the activation 30-90min by steam 35 and inert gas in activation furnace,Obtain qualified Product Activity burnt 43 and portion gas mixture 42.
Above activated coke preparation system and process can realize the preparation taking pulverized coal pyrolysis product pyrolysis Jiao as raw materialActivated coke, but still have material and the problem such as energy utilization is not high, for these problems in following system andCorrective measure is proposed: 1., in activated coke preparation process, add Fe in technique2O3After CaO, can make to liveProperty Jiao by-product hydrogen in activation, and gained activated coke has the H of removing2S and NH3Function; 2. profitWith portioned product pyrolysis Jiaozhuo be the adsorbent of pyrolysis system pyrolysis gas desulphurization denitration, reduce pyrolysis gas be cleaned intoThis; The gaseous product of 3. discharging from activation furnace obtains hydrogen-rich gaseous product through condensation separation water, can be used as downstream and producesProduct processing and utilization, the value of raising byproduct.
As shown in Figure 2, the system after improvement adds gas purge system E after pyrolysis system A, in activated cokeAfter preparation system, D adds gas separation system F. The heat of gas-liquid separator 11 top exits in pyrolysis system AVenting one's spleen 44 is connected with desulfurization and denitrification reaction device 13 entrances of gas purge system E, activated coke preparation systemThe desulfurization and denitrification reaction of burnt 43 outlets of the Product Activity of activation furnace 9 outlet at bottoms and gas purge system E in DDevice 13 is connected, and admixture of gas 42 outlets of activation furnace 9 top exits are connected with condenser 14 entrances,Be hydrogen-rich gaseous product 51 through cooler condenser 14 top exits, bottom is condensed water 52.
Technological process after improvement is as follows:
Fine coal 20 is sent in pyrolysis oven 1 after the middle low temperature pyrogenation of 500-800 DEG C, and oil gas product 21 is the end of byGas-liquid separator 11 is sent in portion's outlet, obtains pyrolysis gas 44 and crude tar oil 45 through gas-liquid separation, and crude tar oil entersEnter the rear separation of tar separator 12 and obtain water 46 and product coal tar 47; Solid product high temperature after pyrolysisPyrolysis Jiao 22 sends into coke dry quenching furnace 2, after inert gas is cooling, and the quenching of discharging from coke dry quenching furnace 2 topsGas 25 enters deduster 3, and the quenching gas 2 after dedusting is sent into heat exchanger 8, carries out with recirculated water 31Fully, after heat exchange, after gas cooled, through threeway 10, a part is sent into the activation furnace of activated coke preparation system D,Another part returns to mix with topping up 23 and sends into coke dry quenching furnace 2 and recycle, and recirculated water is through heat exchangeAfter intensification, be converted into the activation furnace that steam 35 enters activated coke preparation system D; Coke dry quenching furnace 2 outlet at bottomsThe burnt pyrolysis coke powder dirt 28 with deduster 3 bottoms of the pyrolysis of cooling pyrolysis Jiao 26 after disintegrating machine 4 fragmentationsBe mixed into dry method cull eliminator 5, remove high-ash part through sorting, low ash content pyrolysis Jiao 37 is through screening machine6 screenings, it is CaO and the Fe of 1-10% that the pyrolysis breeze 39 of wherein < 2mm adds mass ratio2O3Deng addingAdd after agent after forming machine 7 moulding, with large particle diameter pyrolysis Jiao 38 of 2-13mm in batches or together with enter activationStove 9 by after steam 35 and inert gas activation 30-90min, obtains qualified product in activation furnaceProduct activated coke 43 and portion gas mixture 42; Most of activated coke is as commodity selling, part activated cokeCan be used as the catalyst that in the pyrolysis system A in the present invention, pyrolysis gas purifies, at desulfurization and denitrification reaction device 13In remove H2S、NH3Be purified pyrolysis gas Deng gas, enrich body in the admixture of gas of activation furnace outletLong-pending than the hydrogen of 50-80%, be admitted in condenser 14 and obtain purer hydrogen-rich gas through condensation except anhydrating,Can be mixed for downstream product processing with purifying pyrolysis gas, or carry out separately downstream product processing.
By specific embodiment, the inventive method is described below:
Embodiment 1: particle diameter < 100mm fine coal in pyrolysis oven, after the temperature pyrolysis of 500-800 DEG C, oilGas product is sent into gas-liquid separator separates and is obtained pyrolysis gas and crude tar oil, and crude tar oil enters tar separator and separatesObtain water and product coal tar; After pyrolysis, pyrolysis Jiao sends into coke dry quenching furnace, is cooled to through inert gas150-350 DEG C, the quenching gas at coke dry quenching furnace top enters deduster, sends into heat exchanger after dedusting, and followsRing water carries out after abundant heat exchange, and after gas cooled, through threeway, a part is sent into activation furnace, and another part returnsMix with topping up and send into coke dry quenching furnace and recycle, recirculated water is converted into after heat exchange heats upThe steam of 300-450 DEG C enters activation furnace; Cooling pyrolysis Jiao of coke dry quenching furnace bottom outlet is through crusher in crushingAfter pyrolysis burnt with dedusting after the burnt mix dust of pyrolysis remove high-ash part through sorting, obtain ash content< 10%(mass ratio) pyrolysis Jiao through screening, after the pyrolysis breeze moulding of wherein < 2mm with 2-13mm'sLarge particle diameter pyrolysis Jiao enters activation furnace, in activation furnace, activates 30-90min by steam and inert gasAfter, obtaining average grain diameter and be respectively 9mm, 6mm, specific area is 400-600m-1Product Activity Jiao.
Embodiment 2: particle diameter < 100mm fine coal in pyrolysis oven, after the temperature pyrolysis of 500-800 DEG C, oilGas product is sent into gas-liquid separator separates and is obtained pyrolysis gas and crude tar oil, and crude tar oil enters tar separator and separatesObtain water and product coal tar; After pyrolysis, pyrolysis Jiao sends into coke dry quenching furnace, is cooled to through inert gas150-350 DEG C, the quenching gas at coke dry quenching furnace top enters deduster, sends into heat exchanger after dedusting, and followsRing water carries out after abundant heat exchange, and after gas cooled, through threeway, a part is sent into activation furnace, and another part returnsMix with topping up and send into coke dry quenching furnace and recycle, recirculated water is converted into after heat exchange heats upThe steam of 300-450 DEG C enters activation furnace; Cooling pyrolysis Jiao of coke dry quenching furnace bottom outlet is through crusher in crushingAfterwards with dedusting after the burnt mix dust of pyrolysis remove high-ash part through sorting, obtain ash content < 10%(qualityThan) pyrolysis Jiao through screening, wherein large particle diameter pyrolysis Jiao of 2-13mm enters activation furnace, in activation furnaceBy steam and inert gas activation, activation temperature 700-900 DEG C, soak time 30-90min, obtainAverage grain diameter is respectively 9mm, 6mm, and specific area is 400-600m-1Product Activity Jiao. < 2mmPyrolysis breeze to add mass ratio be CaO and the Fe of 1-10%2O3Aftershaping, sends into after activation furnace through above-mentionedAfter reaction, obtain average grain diameter 6mm, 3mm, specific area is 500-700m-1Product Activity Jiao,Select the cleaning catalyst of part activated coke as pyrolysis system pyrolysis gas, under 300-600 DEG C of condition, heatH in venting one's spleen2Removal efficiency >=80% of S, NH3Removal efficiency >=60%. In the time of the activated coke of preparation small particle diameter,In activation furnace, the gaseous product of simultaneously by-product enrichment hydrogen dewaters and can obtain hydrogen volume ratio and account for through condenserThe gaseous product of 50-80%, mixes as Downstream processing unstripped gas with purification pyrolysis gas.
Claims (10)
1. an activated coke preparation system, is characterized in that: comprise pyrolysis oven (1), pyrolysis oven (1)The burnt outlet of pyrolysis is connected with coke dry quenching furnace (2) entrance, and the burnt outlet of cooling pyrolysis of coke dry quenching furnace (2) connectsHave disintegrating machine (4), disintegrating machine (4) outlet is connected with dry method cull eliminator (5), dry method cull eliminator (5)The burnt outlet of pyrolysis is connected with screening machine (6), large granular materials outlet and the activation furnace (9) of screening machine (6)Charging aperture is communicated with, and the small particles material outlet of screening machine (6) is connected with forming machine (7), forming machine (7)Discharging opening is communicated with activation furnace (9) charging aperture.
2. activated coke preparation system according to claim 1, is characterized in that: described coke dry quenching furnace (2)Gas vent be connected with deduster (3), deduster (3) gas vent is through heat exchanger (8) and threeway (10)Connect, threeway (10) two outlets are lived with coke dry quenching furnace (2) cooling gas inlet and activation furnace (9) respectivelyOxidizing gases entrance is communicated with, and heat exchanger (8) steam (vapor) outlet is communicated with activation furnace (9) steam inlet, deduster(3) dust outlet is communicated with dry method cull eliminator (5) feed(raw material)inlet.
3. activated coke preparation system according to claim 1 and 2, is characterized in that: described pyrolysis oven(1) pyrolysis oil gas vent is connected with gas-liquid separator (11), and gas-liquid separator (11) liquid outlet connectsThere is tar separator (12).
4. activated coke preparation system according to claim 3, is characterized in that: described gas-liquid separator(11) gas vent is communicated with desulfurization and denitrification reaction device (13), and the activated coke outlet of activation furnace (9) is with de-The catalyst inlet of sulphur Benitration reactor (13) is communicated with.
5. activated coke preparation system according to claim 3, is characterized in that: described activation furnace (9)Gas vent is connected with condenser (14).
6. the activated coke preparation method based on claim 1 system, is characterized in that comprising the following steps:
1) fine coal is sent into pyrolysis in pyrolysis oven (1), and high temperature pyrolysis Jiao that pyrolysis obtains sends into coke dry quenching furnace (2)In;
2) high temperature pyrolysis Jiao sends in disintegrating machine (4) broken at coke dry quenching furnace (2) after inert gas is cooling;
3) pyrolysis Jiao after fragmentation enters dry method cull eliminator (5) and removes high-ash part through sorting, low ashDivide pyrolysis Jiao through screening machine (6) screening, wherein the pyrolysis breeze of particle diameter < 2mm is through forming machine (7) mouldingEnter activation in activation furnace (9) with particle diameter large particle diameter pyrolysis Jiao that is 2-13mm afterwards and obtain activated coke.
7. method according to claim 6, is characterized in that: described coke dry quenching furnace (2) gas goes outMouth connection deduster (3), send after the quenching gas that coke dry quenching furnace (2) is discharged enters deduster (3) dedustingEnter heat exchanger (8) and carry out heat exchange with the recirculated water that enters heat exchanger (8), after gas cooled through threeway (10)A part is sent into activation furnace (9) and is returned to coke dry quenching furnace (2) as activated gas, another part and recycle,Recirculated water is converted into steam and enters activation furnace (9) as activated gas after heat exchange heats up.
8. method according to claim 6, is characterized in that: in described step 3), and wherein particle diameterIn the pyrolysis breeze of < 2mm, adding mass ratio is CaO and the Fe of 1-10%2O3Through forming machine (7) mouldingEnter activation in activation furnace (9) with particle diameter large particle diameter pyrolysis Jiao that is 2-13mm afterwards and obtain activated coke.
9. method according to claim 8, is characterized in that: described pyrolysis oven (1) pyrolysis producesPyrolysis oil pneumatic transmission enter gas-liquid separator (11) separate obtain pyrolysis gas and crude tar oil, pyrolysis gas is sent into desulfurizationIn Benitration reactor (13), since self-activation stove (9) activation obtain activated coke as catalyst, remove heatH in venting one's spleen2S、NH3Be purified pyrolysis gas.
10. method according to claim 8, is characterized in that: described activation furnace (9) gas ventBe connected with condenser (14), the admixture of gas that activation furnace (9) activation produces is sent in condenser (14)Obtain pure hydrogen-rich gas through condensation except anhydrating.
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| CN103421521A (en) * | 2013-08-07 | 2013-12-04 | 陕西煤业化工技术研究院有限责任公司 | Device and method for preparing pulverized coal with low energy consumption |
| CN203653258U (en) * | 2013-12-13 | 2014-06-18 | 陕西煤业化工技术研究院有限责任公司 | System for preparing active cokes |
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