CN101775301A - Biomass coke and preparation method thereof - Google Patents
Biomass coke and preparation method thereof Download PDFInfo
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- CN101775301A CN101775301A CN201010111261A CN201010111261A CN101775301A CN 101775301 A CN101775301 A CN 101775301A CN 201010111261 A CN201010111261 A CN 201010111261A CN 201010111261 A CN201010111261 A CN 201010111261A CN 101775301 A CN101775301 A CN 101775301A
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Abstract
The invention discloses a biomass coke and a preparation method thereof. The biomass coke comprises the following components in percentage by weight: 20%-65% of biomass carbon and 35%-80% of coal. The preparation method comprises the following steps: 1 the biomass carbon and the coking coal are respectively sent to respective grinder to be ground into fine powder; 2 the biomass carbon and the fine coal powder carbonized in step 1 are mixed according to a certain proportion, put into a carbonization furnace and compacted; 3 the temperature in the carbonization furnace is raised to about 900 to 1050 DEG C and kept for 14 to 18 hours; and 4 the refined mature coke is screened and stored after being quenched. 20% to 65% of biomass carbon is added into the biomass coke, the sulphur content and the carbon dioxide emission are greatly reduced in proportion, and the heating value also meets the requirements; and the anti-crush strength and the abrasive resistance of the coke and the drum strength which can reach M40 and is more than 72 conform to the national standards of metallurgical three-level coke.
Description
Technical field:
The invention belongs to metallurgical technology field, specifically relate to a kind of biomass coke of finger and preparation method thereof.
Technical background:
China is the big country that produces, uses coke, and China produced about 3.27 hundred million tons of coke in 2008, accounted for 60% of worldwide production, about 300,000,000 tons of year consumption.Existing coke generally is that coal is main production, and coal contains certain sulphur, and the quality influence of sulphur STRENGTH ON COKE is very big, and sulphur is one of detrimental impurity of pig iron smelting, and it reduces iron quality, and sulphur content is waste product greater than 0.07% in conversion pig.The sulphur of being brought in the stove by blast furnace burden has 82.5% from coke, so coke is the main source of sulphur in the furnace charge, the height of coke sulphur content directly has influence on blast furnace ironmaking production.When sulfur content in coke greater than 1.6%, the every increase by 0.1% of sulfur, the coke usage quantity increases by 1.8%, the Wingdale add-on increases by 3.7%, the ore add-on increases by 0.3% furnace processor and reduces by 1.5～2.0%.The sulphur content regulation of metallurgical coke is not more than 1%, and the metallurgical coke sulphur content that big-and-middle-sized blast furnace uses is less than 0.4～0.7%, and the high sulfur content coke uses and is restricted, and low sulphur coal is very limited in Chinese quantity; And the CO2 emissions of coal is also many.
Biomass charcoal (claiming charcoal again) is to put into the solid carbon that the pyrolysis oven thermal degradation stays by biomass bark, branch, shell, wood sawdust etc., and the charcoal ash content is 1～4%.Sulfur-bearing is low, and is about 0.1～0.2%, and the content of volatile matter is generally 12～20%, the thermal value height is more than 7000 kilocalories/kilogram, when pyrolysis temperature reaches 700～1000 ℃, carbon content reaches 92%, and about 8000 kilocalories/kilogram, the emission of carbon-dioxide of biomass charcoal is zero.In ancient times, ironmaking is to use charcoal, but the shatter strength of charcoal and abrasive wear resistance are lower than coke, causes being used for smelting iron and steel-making, and the charcoal consumption amount is big, cost is high.
Summary of the invention:
The object of the present invention is to provide the biomass coke that a kind of sulphur content is low, Carbon emission is few, another object of the present invention is to provide a kind of preparation method of biomass coke.
The object of the present invention is achieved like this, and the component and the weight percent of this biomass coke are as follows:
Biomass charcoal 20%～65%;
Coal 35%～80%;
The best proportioning of its component of this biomass coke and weight percent is as follows:
Biomass charcoal 25%～45%;
Coal 55%～75%.
The preparation method of above-mentioned biomass coke, the pulverizer that comprise the steps: 1, biomass charcoal, coking coal is sent to respectively separately is ground into fine powder; 2, biomass charcoal, the coal fine powder with step 1 charing is mixed in proportion, and puts into charring furnace, and compacting; 3, temperature in the charring furnace is elevated to 900 ℃～1050 ℃, kept 14～18 hours; 4, will refine sophisticated coke quenching after, sieve then, preserve.
After the quenching, the biomass coke of compacting falls, and becomes fragment.
When the sulphur content of coke surpassed 1%, this coke claimed high sulphur coke, has surpassed national standard, and the product commodity value is low.In the coking coal of certain sulphur content 1.1%, add 20% biomass charcoal refine coke, detected value such as table 1:
Table 1
Can find out from table 1, be 1.1% coking coal with sulphur content, and 80% coking coal is mixed with 20% biomass charcoal, high temperature sintering becomes biomass coke in the coke oven of 1000 degree, after testing, the coke sulphur content can drop to 0.93% by original 1.1%, meets metallurgical three grades of Jiao's national standard.
The coking coal that some sulphur content is high, coke shatter strength of producing and abrasive wear resistance are all very high, but the coke sulphur content height of producing, can not be used for blast furnace with burnt, as being to mix biomass charcoal in 1.6% the coking coal in sulphur content, just can reduce the sulphur content of coke greatly, the coke of producing reaches metallurgical three grades of Jiao's national standard.
Table 2
Can find out from table 2, be 1.6% coking coal with sulphur content, with the biomass charcoal of 55% coking coal and 45%, mixes, and high temperature sintering becomes biomass coke in the coke ovens of 1000 degree, and after testing, the coke sulphur content can drop to 0.98% by original 1.6%.
The metallurgical coke sulphur content that big-and-middle-sized blast furnace uses is less than 0.4～0.7%, this has limited many coke and has surpassed 0.7% because of sulfur-bearing, can not be used for big-and-middle-sized blast furnace, as mix biomass charcoal, just can obtain the low high grade coke of sulphur content, with sulphur content is that 0.95% coke is an example, in coal, mix 35% biomass charcoal after, detected value such as table 3:
Table 3
Can find out that from table 3 65% coking coal (sulphur content is 0.95%) mixes with 35% biomass charcoal, high temperature sintering becomes biomass coke in the coke ovens of 1000 degree, and after testing, the coke sulphur content can drop to 0.69% by original 0.95%.
Biomass charcoal is a kind of reproducible energy, the sulphur content of biomass charcoal is low, emission of carbon-dioxide is zero, added 20%～65% biomass charcoal in the biomass coke, biomass coke sulphur content, emission amount of carbon dioxide also greatly reduce in proportion, and calorific value is also closed the symbol requirement; In the production process, the accuracy that biomass charcoal, coking coal mixed, improved proportioning, guarantee the chemical ingredients of coke and stablizing of physical and mechanical properties, stablize coke quality, foreign material are wanted Ex-all in the coal, and moisture can not be too high.Though added biomass charcoal, but different biomass charcoals, coking coal are determined optimum grinding particle size according to the product particular case, biomass charcoal, coal fine powder are mixed in proportion, put into charring furnace, and compacting, temperature in the charring furnace is elevated to 900 ℃～1050 ℃, kept 14～18 hours, be mixed and made into product, can improve the shatter strength and the abrasive wear resistance of biomass coke effectively, barrate strength can reach M40 greater than 72, meets metallurgical three grades of Jiao's national standard, and the biomass charcoal consumption is little, cost is also low.
Embodiment:
Embodiment 1,
Batching: (weight percent) is 1.1% coking coal with sulphur content, and coking coal accounts for 80%, biomass charcoal accounts for 20%.1, the pulverizer that biomass charcoal, coking coal are sent to respectively separately is ground into fine powder; 2, biomass charcoal, the coal fine powder with step 1 charing is mixed in proportion, and puts into charring furnace, and compacting; 3, will be elevated to 1000 ℃ in the charring furnace, kept 14～18 hours; 4, will refine sophisticated coke with pushing machine and push quenching car through coke guide; After the quenching, coke is discharged into cool Jiao Tai; Sieve then, preserve.
Biomass char carbon products fixed carbon content 〉=85% of producing, ash content≤11.5%, sulphur content 0.93%, calorific value are at 31.48MJ/KG, and Carbon emission reduces 20% than traditional coke.
Embodiment 2,
Batching: (weight percent) is 0.8% coking coal with sulphur content, and coking coal accounts for 60%, biomass charcoal accounts for 40%.1, the pulverizer that biomass charcoal, coking coal are sent to respectively separately is ground into fine powder; 2, biomass charcoal, the coal fine powder with step 1 charing is mixed in proportion, and puts into charring furnace, and compacting; 3, will be elevated to about 950 ℃ in the charring furnace, kept 14～18 hours; 4, will refine sophisticated coke with pushing machine and push quenching car through coke guide; After the quenching, coke is discharged into cool Jiao Tai; Sieve then, preserve.
Biomass char carbon products fixed carbon content 〉=87% of producing, ash content≤10.8%, sulphur content 0.55%, calorific value are at 32.34MJ/KG, and Carbon emission reduces 40% than traditional coke.
Embodiment 3,
Batching: (weight percent) is 1.6% coking coal with sulphur content, and coking coal accounts for 55%, biomass charcoal accounts for 45%.1, the pulverizer that biomass charcoal, coking coal are sent to respectively separately is ground into fine powder; 2, biomass charcoal, the coal fine powder with step 1 charing is mixed in proportion, and puts into charring furnace, and compacting; 3, will be elevated to 920 ℃ in the charring furnace, kept 14～18 hours; 4, will refine sophisticated coke with pushing machine and push quenching car through coke guide; After the quenching, coke is discharged into cool Jiao Tai; Sieve then, preserve.
Biomass char carbon products fixed carbon content 〉=88% of producing, ash content≤10.5%, sulphur content 0.69% calorific value is at 32.18MJ/KG, and Carbon emission reduces 45% than traditional coke.
Claims (3)
1. a biomass coke is characterized in that, its component and weight percent are as follows:
Biomass charcoal 20%～65%;
Coal 35%～80%.
2. biomass coke as claimed in claim 1 is characterized in that, its component and weight percent proportioning are as follows:
Biomass charcoal 25%～45%;
Coal 55%～75%.
3. preparation method of biomass coke according to claim 1 is characterized in that: the pulverizer that comprise the steps: 1, biomass charcoal, coking coal is sent to respectively separately is ground into fine powder; 2, biomass charcoal, the coal fine powder with step 1 charing is mixed in proportion, and puts into charring furnace, and compacting; 3, temperature in the charring furnace is elevated to about 900～1050 ℃, kept 14～18 hours; 4, will refine sophisticated coke quenching after, sieve then, preserve.
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586529A (en) * | 2012-03-23 | 2012-07-18 | 北京科技大学 | Rotary hearth furnace iron-making method utilizing biomass carbon-containing pellet to serve as raw material |
| WO2012100310A1 (en) * | 2011-01-27 | 2012-08-02 | Medrado Agenor | Increase in hardness and impact and abrasion strength of coke by mixing biomass (sucrose; soy molasses; sugar cane molasses and other types of molasses) with quenching water for coke produced in vertical and horizontal furnaces |
| CN103450915A (en) * | 2013-09-07 | 2013-12-18 | 鞍钢股份有限公司 | Preparation method of metallurgical biomass semi-coke |
| CN105316013A (en) * | 2014-07-31 | 2016-02-10 | 宝山钢铁股份有限公司 | Method for producing coke by replacing part of coal by sawdust |
| CN106929049A (en) * | 2015-12-30 | 2017-07-07 | 北京三聚环保新材料股份有限公司 | It is a kind of that coking is carried out to the moulded coal containing low-order coal and biological particles and the technique of coal tar pitch is reclaimed |
| CN106929069A (en) * | 2015-12-30 | 2017-07-07 | 北京三聚环保新材料股份有限公司 | A kind of process for upgrading of the moulded coal raw material containing low-order coal and biological particles |
| CN106929050A (en) * | 2015-12-30 | 2017-07-07 | 北京三聚环保新材料股份有限公司 | A kind of process for upgrading of the molding mass containing low-order coal, biomass and rubbish |
| CN106929071A (en) * | 2015-12-30 | 2017-07-07 | 北京三聚环保新材料股份有限公司 | A kind of coking process of the moulded coal raw material for being coated with low-order coal and biological particles |
| CN106929052A (en) * | 2015-12-30 | 2017-07-07 | 北京三聚环保新材料股份有限公司 | A kind of moulded coal raw material containing low-order coal and biological particles |
| CN107418606A (en) * | 2017-08-29 | 2017-12-01 | 太原理工大学 | Reduce charcoal powder compound additive and preparation method and the application of domestic coke ignition temperature |
| CN108219807A (en) * | 2016-12-13 | 2018-06-29 | 鞍钢股份有限公司 | A kind of preparation method of blast furnace biomass iron coke |
| CN110479215A (en) * | 2019-08-08 | 2019-11-22 | 华北电力大学（保定） | A kind of coking waste water treatment method |
| CN111036173A (en) * | 2019-11-26 | 2020-04-21 | 安吉竹墨新材料科技有限公司 | Biomass charcoal-based activated coke and preparation method thereof |
| EP4219658A3 (en) * | 2011-04-15 | 2023-08-09 | Carbon Technology Holdings, LLC | Use of high-carbon biogenic reagents as reducing agent in metal production |
| US11932814B2 (en) | 2021-04-27 | 2024-03-19 | Carbon Technology Holdings, LLC | Biocarbon blends with optimized fixed carbon content, and methods for making and using the same |
| US11987763B2 (en) | 2021-07-09 | 2024-05-21 | Carbon Technology Holdings, LLC | Processes for producing biocarbon pellets with high fixed-carbon content and optimized reactivity, and biocarbon pellets obtained therefrom |
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| CN87206322U (en) * | 1987-04-15 | 1987-12-02 | 刘志星 | Solid fuel contg. charcoal |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012100310A1 (en) * | 2011-01-27 | 2012-08-02 | Medrado Agenor | Increase in hardness and impact and abrasion strength of coke by mixing biomass (sucrose; soy molasses; sugar cane molasses and other types of molasses) with quenching water for coke produced in vertical and horizontal furnaces |
| US11965139B2 (en) | 2011-04-15 | 2024-04-23 | Carbon Technology Holdings, LLC | Systems and apparatus for production of high-carbon biogenic reagents |
| US11959038B2 (en) | 2011-04-15 | 2024-04-16 | Carbon Technology Holdings, LLC | High-carbon biogenic reagents and uses thereof |
| EP4219657A3 (en) * | 2011-04-15 | 2023-08-23 | Carbon Technology Holdings, LLC | High-carbon biogenic reagents and uses thereof |
| EP4219658A3 (en) * | 2011-04-15 | 2023-08-09 | Carbon Technology Holdings, LLC | Use of high-carbon biogenic reagents as reducing agent in metal production |
| CN102586529B (en) * | 2012-03-23 | 2013-08-07 | 北京科技大学 | Rotary hearth furnace iron-making method utilizing biomass carbon-containing pellet to serve as raw material |
| CN102586529A (en) * | 2012-03-23 | 2012-07-18 | 北京科技大学 | Rotary hearth furnace iron-making method utilizing biomass carbon-containing pellet to serve as raw material |
| CN103450915A (en) * | 2013-09-07 | 2013-12-18 | 鞍钢股份有限公司 | Preparation method of metallurgical biomass semi-coke |
| CN103450915B (en) * | 2013-09-07 | 2015-07-08 | 鞍钢股份有限公司 | Preparation method of metallurgical biomass semi-coke |
| CN105316013B (en) * | 2014-07-31 | 2018-03-09 | 宝山钢铁股份有限公司 | A kind of method that coal production coke in part is substituted using wood chip |
| CN105316013A (en) * | 2014-07-31 | 2016-02-10 | 宝山钢铁股份有限公司 | Method for producing coke by replacing part of coal by sawdust |
| CN106929052A (en) * | 2015-12-30 | 2017-07-07 | 北京三聚环保新材料股份有限公司 | A kind of moulded coal raw material containing low-order coal and biological particles |
| CN106929071A (en) * | 2015-12-30 | 2017-07-07 | 北京三聚环保新材料股份有限公司 | A kind of coking process of the moulded coal raw material for being coated with low-order coal and biological particles |
| CN106929050A (en) * | 2015-12-30 | 2017-07-07 | 北京三聚环保新材料股份有限公司 | A kind of process for upgrading of the molding mass containing low-order coal, biomass and rubbish |
| CN106929069A (en) * | 2015-12-30 | 2017-07-07 | 北京三聚环保新材料股份有限公司 | A kind of process for upgrading of the moulded coal raw material containing low-order coal and biological particles |
| CN106929049A (en) * | 2015-12-30 | 2017-07-07 | 北京三聚环保新材料股份有限公司 | It is a kind of that coking is carried out to the moulded coal containing low-order coal and biological particles and the technique of coal tar pitch is reclaimed |
| CN108219807A (en) * | 2016-12-13 | 2018-06-29 | 鞍钢股份有限公司 | A kind of preparation method of blast furnace biomass iron coke |
| CN107418606A (en) * | 2017-08-29 | 2017-12-01 | 太原理工大学 | Reduce charcoal powder compound additive and preparation method and the application of domestic coke ignition temperature |
| CN110479215A (en) * | 2019-08-08 | 2019-11-22 | 华北电力大学（保定） | A kind of coking waste water treatment method |
| CN110479215B (en) * | 2019-08-08 | 2022-06-07 | 华北电力大学（保定） | Coking wastewater treatment method |
| CN111036173A (en) * | 2019-11-26 | 2020-04-21 | 安吉竹墨新材料科技有限公司 | Biomass charcoal-based activated coke and preparation method thereof |
| US11932814B2 (en) | 2021-04-27 | 2024-03-19 | Carbon Technology Holdings, LLC | Biocarbon blends with optimized fixed carbon content, and methods for making and using the same |
| US11987763B2 (en) | 2021-07-09 | 2024-05-21 | Carbon Technology Holdings, LLC | Processes for producing biocarbon pellets with high fixed-carbon content and optimized reactivity, and biocarbon pellets obtained therefrom |
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Application publication date: 20100714 |