CN105776208A - Production method of active coke - Google Patents
Production method of active coke Download PDFInfo
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- CN105776208A CN105776208A CN201610210734.1A CN201610210734A CN105776208A CN 105776208 A CN105776208 A CN 105776208A CN 201610210734 A CN201610210734 A CN 201610210734A CN 105776208 A CN105776208 A CN 105776208A
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- 239000000571 coke Substances 0.000 title claims abstract description 80
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000003245 coal Substances 0.000 claims abstract description 47
- 239000003610 charcoal Substances 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- 238000001179 sorption measurement Methods 0.000 claims abstract description 10
- 230000004913 activation Effects 0.000 claims description 24
- 229920006395 saturated elastomer Polymers 0.000 claims description 19
- 239000003034 coal gas Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000009825 accumulation Methods 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 12
- 238000000746 purification Methods 0.000 claims description 11
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000002817 coal dust Substances 0.000 claims description 7
- 239000011280 coal tar Substances 0.000 claims description 7
- 238000006477 desulfuration reaction Methods 0.000 claims description 7
- 230000023556 desulfurization Effects 0.000 claims description 7
- 229910052740 iodine Inorganic materials 0.000 claims description 7
- 239000011630 iodine Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000000428 dust Substances 0.000 abstract 1
- 238000003763 carbonization Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000230452 Cyclothone braueri Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
Classifications
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a production method of active coke. The method comprises the following steps: firstly enclosing raw coal into a coal pocket in the top part of a semi-coke vertical furnace and then feeding the raw coal into a charcoal fire chamber; moving the raw coal added to the charcoal fire chamber from top to bottom to reversely contact high-temperature gas which is fed to the charcoal fire chamber from a combustion chamber at 850-1,000 DEG C for heat exchange, and heating the raw coal to 750-850 DEG C to form semi-coke; reacting the semi-coke with high-temperature steam which is conveyed to the charcoal fire chamber at 850-1,000 DEG C to obtain an activated product; and finally cooling the activated product to obtain the active coke. The method is simple in technology, high in heat efficiency, high in oil productivity, low in dust content in tar, high in gas yield, high in gas heat value and low in energy consumption; and the produced active coke has the characteristics of being low in cost, high in strength, large in specific surface area and high in adsorption capacity.
Description
Technical field
The invention belongs to technical field of coal chemical industry, be specifically related to the production method of a kind of activated coke.
Background technology
Coal process deeply industry development policies, encourages the coal deep processing project that development is raw material with the low-grade coal such as brown coal, long bituminous coal, the new model of the coal deep processings such as coal sub-prime comprehensive utilization.But it is that raw coal is carried out carbonization process in upright furnace or internal-heated rotary furnace that current domestic activated coke is generally adopted, carrying out activation processing at entrance Stepple furnace or this Garrick stove after product cooling, product process flow is long, and energy consumption is big, and production cost is high.
Summary of the invention
It is an object of the invention to provide the production method of a kind of activated coke, with the defect overcoming above-mentioned prior art to exist, present invention process is simple, the thermal efficiency is high, oil productivity high, dustiness is low, gas yield is big, calorific value of gas is high, energy consumption is low in tar, and its produced activated coke has that cost is low, intensity is high, specific surface area is big, the feature of high adsorption capacity.
For reaching above-mentioned purpose, the present invention adopts the following technical scheme that
The production method of a kind of activated coke, comprises the following steps:
Step one: raw coal is loaded semi-coke upright furnace top coal groove, is then fed into charcoal fire room；
Step 2: the raw coal adding charcoal fire room from up to down moves, the reverse contact heat-exchanging of high-temperature gas with 850～1000 DEG C of combustor feeding charcoal fire room, raw coal is heated to 750～850 DEG C and forms semi-coke；
Step 3: the semi-coke high-temperature steam with 850～1000 DEG C that are delivered to charcoal fire room reacts, and obtains activation products；
Step 4: activation products are cooled down, namely obtains activated coke.
Further, the jet coal coal dust of described raw coal to be granularity be 3～15mm.
Further, step 2 obtains coal tar and purification coal gas after forming the raw coke oven gas of generation in semi-coke process and the water gas mixing of step 3 formation activation products generation after gas cleaning system.
Further, purify coal gas Part I and enter the high-temperature gas of combustor and air mixed combustion formation 850～1000 DEG C；Part II is sent into steam boiler and is heated water into saturated vapor with air mixed combustion.
Further, saturated vapor forms the high-temperature steam of 850～1000 DEG C after high-temperature steam heating furnace heat exchange.
Further, high-temperature steam heating furnace is two, when wherein one pass into saturated vapor time, another carries out accumulation of heat, and high-temperature steam heating furnace utilizes Part III to purify gas-fired to carry out accumulation of heat.
Further, two every 2～3 h cycle of high-temperature steam heating furnace exchange once.
Further, the iodine sorption value of produced activated coke is 496～540mg/g, and desulfurization value is 16.7～18.05mg/g.
Compared with prior art, the present invention has following useful technique effect:
nullThe inventive method simplifies technological process，In producing at present, carbonization and activation carry out in the respective special type of furnace respectively，And carbonization of the present invention and activation all carry out in semi-coke upright furnace simultaneously，Simplify technological process，Avoid the process that raw material cooling reheats，Reduce energy consumption，More reduce activated coke production cost，And make semi-coke upright furnace multi-use，Expand the scope of application of semi-coke upright furnace，The activated coke specific surface area prepared by the inventive method is big、High adsorption capacity，Have more flourishing big、Central hole structure，It is suitable in sewage disposal and goes the big of absorption correspondence、Middle particulate pollutant，When gained activated coke fugitive constituent is by semi-coke about 10% is reduced to less than 3%，100mg/g when iodine sorption value is by semi-coke is raised to present more than 450mg/g more，Desulfurization value has reached 16.7～18.05mg/g，Market potential during mark is administered is put forward very big at sewer.
Further, the jet coal coal dust that the present invention adopts granularity to be 3～15mm, cheap relative to coal cinder, less costly.
Further, after gas cleaning system, obtain coal tar and purify coal gas after forming the raw coke oven gas produced in semi-coke process and forming the water gas mixing that activation products produce, not only reclaimed chemical products, and reuse purifies coal gas, has saved mass energy.
Further, two high-temperature steam heating furnaces are adopted, it is ensured that the lasting high-temperature steam constant to the offer of semi-coke upright furnace, thus ensure that the continuous production of activated coke.
Accompanying drawing explanation
Fig. 1 is the process chart of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Referring to Fig. 1, the production method of a kind of activated coke, comprise the following steps:
Step one: the jet coal coal dust that granularity is 3～15mm is loaded semi-coke upright furnace top coal groove, then through putting coal cock and auxiliary coal bin feeding charcoal fire room, according to manufacturing technique requirent, opens and puts coal cock to charcoal fire room coal once per half an hour；
Step 2: the raw coal adding charcoal fire room from up to down moves, with the reverse contact heat-exchanging of high-temperature gas of 850～1000 DEG C of combustor feeding charcoal fire room, the top of charcoal fire room is preheating section, and coal is heated to 80～250 DEG C in this section；Then proceeding to the retort section being moved downwardly in the middle part of carbonization chamber, coal is heated to 750～850 DEG C by this section and forms semi-coke；
Step 3: semi-coke continues to be moved downwardly into high-temperature steam activation section, the high-temperature steam with 850～1000 DEG C that are delivered to charcoal fire room reacts, and obtains activation products；Step 2 enters pneumatic trough through tedge, high temperature resistant coal gas umbrella and bridge tube after forming the raw coke oven gas of generation in semi-coke process and the water gas mixing of step 3 formation activation products generation, obtains coal tar and purification coal gas after delivering to gas cleaning system；
Step 4: activation products cooled down, namely obtain activated coke, the activated coke after cooling is discharged by discharging device for coke and is transported stove district product library through ribbon conveyer, and the iodine sorption value of produced activated coke is 496～540mg/g, and desulfurization value is 16.7～18.05mg/g.
Purify coal gas Part I and enter the high-temperature gas of combustor and air mixed combustion formation 850～1000 DEG C；Part II is sent into steam boiler and is heated water into saturated vapor with air mixed combustion, and saturated vapor forms the high-temperature steam of 850～1000 DEG C after high-temperature steam heating furnace heat exchange；High-temperature steam heating furnace is two, when wherein one pass into saturated vapor time, another carries out accumulation of heat, and high-temperature steam heating furnace utilizes Part III purification gas-fired to carry out accumulation of heat, two every 2～3 h cycle of high-temperature steam heating furnace exchange once, purpose is the high-temperature steam of the saturated vapor heat exchange to 850～1000 DEG C that steam boiler is produced, and is sent in the high-temperature steam activation device of semi-coke upright furnace bottom by high-temperature pipe, it is ensured that semi-coke upright furnace uses 850～1000 DEG C of high-temperature steams continuously.
Below in conjunction with embodiment, the present invention is described in further detail:
Embodiment 1
Step one: the jet coal coal dust that granularity is 3mm is loaded semi-coke upright furnace top coal groove, is then fed into charcoal fire room；
Step 2: the raw coal adding charcoal fire room from up to down moves, the reverse contact heat-exchanging of high-temperature gas with 850 DEG C of combustor feeding charcoal fire room, raw coal is heated to 750 DEG C and forms semi-coke；
Step 3: the semi-coke high-temperature steam with 850 DEG C that are delivered to charcoal fire room reacts, and obtains activation products；Wherein, step 2 obtains coal tar and purification coal gas after forming the raw coke oven gas of generation in semi-coke process and the water gas mixing of step 3 formation activation products generation after gas cleaning system, purify coal gas Part I and enter combustor and air mixed combustion formation high-temperature gas, Part II is sent into steam boiler and is heated water into saturated vapor with air mixed combustion, saturated vapor forms high-temperature steam after high-temperature steam heating furnace heat exchange, and high-temperature steam heating furnace is two, when wherein one pass into saturated vapor time, another carries out accumulation of heat, and high-temperature steam heating furnace utilizes Part III purification gas-fired to carry out accumulation of heat, two every 2 h cycle of high-temperature steam heating furnace exchange once；
Step 4: activation products being cooled down, namely obtain activated coke, the iodine sorption value of produced activated coke is 496mg/g, and desulfurization value is 16.7mg/g.
Embodiment 2
Step one: the jet coal coal dust that granularity is 15mm is loaded semi-coke upright furnace top coal groove, is then fed into charcoal fire room；
Step 2: the raw coal adding charcoal fire room from up to down moves, the reverse contact heat-exchanging of high-temperature gas with 1000 DEG C of combustor feeding charcoal fire room, raw coal is heated to 850 DEG C and forms semi-coke；
Step 3: the semi-coke high-temperature steam with 1000 DEG C that are delivered to charcoal fire room reacts, and obtains activation products；Wherein, step 2 obtains coal tar and purification coal gas after forming the raw coke oven gas of generation in semi-coke process and the water gas mixing of step 3 formation activation products generation after gas cleaning system, purify coal gas Part I and enter combustor and air mixed combustion formation high-temperature gas, Part II is sent into steam boiler and is heated water into saturated vapor with air mixed combustion, saturated vapor forms high-temperature steam after high-temperature steam heating furnace heat exchange, and high-temperature steam heating furnace is two, when wherein one pass into saturated vapor time, another carries out accumulation of heat, and high-temperature steam heating furnace utilizes Part III purification gas-fired to carry out accumulation of heat, two every 3 h cycle of high-temperature steam heating furnace exchange once；
Step 4: activation products being cooled down, namely obtain activated coke, the iodine sorption value of produced activated coke is 540mg/g, and desulfurization value is 18.05mg/g.
Embodiment 3
Step one: the jet coal coal dust that granularity is 8mm is loaded semi-coke upright furnace top coal groove, is then fed into charcoal fire room；
Step 2: the raw coal adding charcoal fire room from up to down moves, the reverse contact heat-exchanging of high-temperature gas with 900 DEG C of combustor feeding charcoal fire room, raw coal is heated to 800 DEG C and forms semi-coke；
Step 3: the semi-coke high-temperature steam with 900 DEG C that are delivered to charcoal fire room reacts, and obtains activation products；Wherein, step 2 obtains coal tar and purification coal gas after forming the raw coke oven gas of generation in semi-coke process and the water gas mixing of step 3 formation activation products generation after gas cleaning system, purify coal gas Part I and enter combustor and air mixed combustion formation high-temperature gas, Part II is sent into steam boiler and is heated water into saturated vapor with air mixed combustion, saturated vapor forms high-temperature steam after high-temperature steam heating furnace heat exchange, and high-temperature steam heating furnace is two, when wherein one pass into saturated vapor time, another carries out accumulation of heat, and high-temperature steam heating furnace utilizes Part III purification gas-fired to carry out accumulation of heat, two every 2.5 h cycle of high-temperature steam heating furnace exchange once；
Step 4: activation products being cooled down, namely obtain activated coke, the iodine sorption value of produced activated coke is 518mg/g, and desulfurization value is 17.3mg/g.
Claims (8)
1. the production method of an activated coke, it is characterised in that comprise the following steps:
Step one: raw coal is loaded semi-coke upright furnace top coal groove, is then fed into charcoal fire room；
Step 2: the raw coal adding charcoal fire room from up to down moves, the reverse contact heat-exchanging of high-temperature gas with 850～1000 DEG C of combustor feeding charcoal fire room, raw coal is heated to 750～850 DEG C and forms semi-coke；
Step 3: the semi-coke high-temperature steam with 850～1000 DEG C that are delivered to charcoal fire room reacts, and obtains activation products；
Step 4: activation products are cooled down, namely obtains activated coke.
2. the production method of a kind of activated coke according to claim 1, it is characterised in that described raw coal is granularity is the jet coal coal dust of 3～15mm.
3. the production method of a kind of activated coke according to claim 1, it is characterised in that step 2 obtains coal tar and purification coal gas after forming the raw coke oven gas of generation in semi-coke process and the water gas mixing of step 3 formation activation products generation after gas cleaning system.
4. the production method of a kind of activated coke according to claim 3, it is characterised in that purify coal gas Part I and enter the high-temperature gas of combustor and air mixed combustion formation 850～1000 DEG C；Part II is sent into steam boiler and is heated water into saturated vapor with air mixed combustion.
5. the production method of a kind of activated coke according to claim 4, it is characterised in that saturated vapor forms the high-temperature steam of 850～1000 DEG C after high-temperature steam heating furnace heat exchange.
6. the production method of a kind of activated coke according to claim 5, it is characterized in that, high-temperature steam heating furnace is two, when wherein one pass into saturated vapor time, another carries out accumulation of heat, and high-temperature steam heating furnace utilizes Part III purification gas-fired to carry out accumulation of heat.
7. the production method of a kind of activated coke according to claim 6, it is characterised in that two every 2～3 h cycle of high-temperature steam heating furnace exchange once.
8. the production method of a kind of activated coke according to claim 1, it is characterised in that the iodine sorption value of produced activated coke is 496～540mg/g, desulfurization value is 16.7～18.05mg/g.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610210734.1A CN105776208B (en) | 2016-04-06 | 2016-04-06 | Production method of active coke |
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| CN105776208B CN105776208B (en) | 2017-04-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698423A (en) * | 2017-02-08 | 2017-05-24 | 北京科技大学 | Method of preparing active coke for desulfurization and denitrification of sintering flue gas by using semi-coke |
| CN110330984A (en) * | 2019-07-25 | 2019-10-15 | 内蒙古万众炜业科技环保股份公司 | The cracking sub-prime that a kind of small particle coal prepares moulded coal utilizes production technology |
| CN111302338A (en) * | 2020-04-08 | 2020-06-19 | 西安热工研究院有限公司 | Equipment and method for preparing amorphous desulfurization and denitrification active coke by one-step method |
| CN111704136A (en) * | 2020-04-27 | 2020-09-25 | 马春元 | Desulfurization and denitrification coal-based active coke one-step preparation equipment and method |
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2016
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| CN101423211A (en) * | 2008-11-14 | 2009-05-06 | 兖矿集团有限公司 | Technique for producing active carbon by extraction of coal fines |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698423A (en) * | 2017-02-08 | 2017-05-24 | 北京科技大学 | Method of preparing active coke for desulfurization and denitrification of sintering flue gas by using semi-coke |
| CN110330984A (en) * | 2019-07-25 | 2019-10-15 | 内蒙古万众炜业科技环保股份公司 | The cracking sub-prime that a kind of small particle coal prepares moulded coal utilizes production technology |
| CN111302338A (en) * | 2020-04-08 | 2020-06-19 | 西安热工研究院有限公司 | Equipment and method for preparing amorphous desulfurization and denitrification active coke by one-step method |
| CN111302338B (en) * | 2020-04-08 | 2023-08-01 | 西安热工研究院有限公司 | Equipment and method for preparing amorphous desulfurization and denitrification active coke by one-step method |
| CN111704136A (en) * | 2020-04-27 | 2020-09-25 | 马春元 | Desulfurization and denitrification coal-based active coke one-step preparation equipment and method |
| CN111704136B (en) * | 2020-04-27 | 2022-09-23 | 马春元 | Desulfurization and denitrification coal-based active coke one-step preparation equipment and method |
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Inventor after: Li Chao Inventor after: Yang Zhanming Inventor after: Liu Hongchun Inventor after: Liu Chengzhi Inventor after: Continued Lianjiang River Inventor before: Yang Zhanming Inventor before: Continued Lianjiang River |
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Effective date of registration: 20170327 Address after: The new temple village 719400 Yulin city of Shaanxi province Fugu County three Dao Gou Xiang Applicant after: Fugu County Sanlian Coal AND Electricity Chemical Co.,Ltd. Applicant after: ACRE COKING & REFRACTORY ENGINEERING CONSULTING CORPORATION (DALIAN), MCC Address before: The new temple village 719400 Yulin city of Shaanxi province Fugu County three Dao Gou Xiang Applicant before: Fugu County Sanlian Coal AND Electricity Chemical Co.,Ltd. |
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Address after: San Dao Gou Xiang Xin Miao Cun, Fugu County, Yulin City, Shaanxi Province 719400 Patentee after: Fugu Dashi New Material Technology Co.,Ltd. Patentee after: ACRE COKING & REFRACTORY ENGINEERING CONSULTING CORPORATION (DALIAN), MCC Address before: San Dao Gou Xiang Xin Miao Cun, Fugu County, Yulin City, Shaanxi Province 719400 Patentee before: Fugu sancailian coal electricity Chemical Co.,Ltd. Patentee before: ACRE COKING & REFRACTORY ENGINEERING CONSULTING CORPORATION (DALIAN), MCC Address after: San Dao Gou Xiang Xin Miao Cun, Fugu County, Yulin City, Shaanxi Province 719400 Patentee after: Fugu sancailian coal electricity Chemical Co.,Ltd. Patentee after: ACRE COKING & REFRACTORY ENGINEERING CONSULTING CORPORATION (DALIAN), MCC Address before: San Dao Gou Xiang Xin Miao Cun, Fugu County, Yulin City, Shaanxi Province 719400 Patentee before: Fugu County Sanlian Coal AND Electricity Chemical Co.,Ltd. Patentee before: ACRE COKING & REFRACTORY ENGINEERING CONSULTING CORPORATION (DALIAN), MCC |
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