CN1309166A - Process for preparing composite biomass briquettes - Google Patents
Process for preparing composite biomass briquettes Download PDFInfo
- Publication number
- CN1309166A CN1309166A CN 01107033 CN01107033A CN1309166A CN 1309166 A CN1309166 A CN 1309166A CN 01107033 CN01107033 CN 01107033 CN 01107033 A CN01107033 A CN 01107033A CN 1309166 A CN1309166 A CN 1309166A
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- Prior art keywords
- biomass
- preparing composite
- composite biomass
- coal
- raw material
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Solid Fuels And Fuel-Associated Substances (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A composite biomass briquette is made up of biomass including stalk or straw, wood leftover, city household garbage and raw coal through crushing, mixing with chlorine fixating agent, sulfur fixating agent and combustion promoter, and hot die pressing. Its advnatages are high compression strength, low combustion point, high combustion efficiency and less environmental pollution.
Description
Process for preparing composite biomass briquettes is with crop stalk, forestry processing waste, and domestic waste and coal are the novel process that raw material is combined into the biomass type matchmaker.
Biomass be exactly in organism except that mineral fuel, all derive from the renewable material of plant, animal and microorganism.Tellurian biomass resource is very abundant, nearly 1,730 hundred million tons of the annual dry-matter that produces through photosynthesis in the whole world, and China's biomass annual production is more than 50 hundred million tons of dry-matteies, is equivalent to 2.5 times of year power consumption total amount; In addition, the volume of cargo in storage over the years of China's rubbish reaches 6,000,000,000 tons, and the rubbish annual production surpasses 100,000,000 tons, wherein 37.5% be to make the biomass energy that fuel utilizes.The present trans-utilization rate less than 10% of China's biomass energy has over half burnt in vain or discarded in annual nearly 700,000,000 tons of agriculture and forestry organic waste materials, not only contaminate environment has also caused huge waste.How efficiently utilizing biomass energy is a problem that urgency is to be solved.Meanwhile, the present annual coal volume of production and marketing of China is more than 1,400,000,000 tons, wherein is unprocessed and direct incendiary has caused the atmosphere coal-smoke pollution more than 84%.According to estimates, the flue dust annual emissions in the present national waste gas reaches more than 1,414 ten thousand tons, SO
2Annual emissions is more than 1,825 ten thousand tons, and wherein 80% comes spontaneous combustion coal, and 40% of China's area is corroded by acid rain, has a strong impact on the environment and the eubiosis, has caused the concern of international community.Therefore, national requirements Industrial Boiler and stove use oligosaprobic moulded coal.Known shaped coal technology all is to be raw material with fine coal, and adding additives forms through mechanical presses, and not only intensity difference, and difficulty catches fire, difficult after-flame, over-emitting black exhaust, big, the SO of dust
2And NO
xQuantity discharged is big, more and more can not satisfy the environmental requirement of increasingly stringent.So development clean moulded coal technology is very urgent.
Fa Ming purpose is not the utilization ratio that crop stalk, forestry processing waste, domestic waste and coal is processed into a kind of composite briquette, raising biomass waste, reduce the pollution of the sulfurous gas that causes because of direct burning coal and nitrogen oxide to environment, solved known moulded coal intensity difference simultaneously, difficulty is caught fire, problems such as difficult after-flame and over-emitting black exhaust.
Invention is not what to realize by following technical scheme.
Fig. 1 is a process flow sheet of the present invention.Biomass (as crop stalk, forestry processing waste, domestic waste etc.) and raw coal are directly pulverized, are aided with chlorine-solidifying agent after the drying as raw material, because of sulphur agent and ignition dope, through mixing, through the hot-forming finished product moulded coal that promptly obtains, after selecting, the overbreak moulded coal that produces during hot pressing returns mixing again.
Processing condition:
1, the particle size after cracking of biomass and coal is less than 3mm;
2, after biomass and the coal drying water content less than 10% (weight percent);
3, sulphur-fixing agent is calcium oxide, lime carbonate, perhaps adopts compound sulphur-fixing agent, this compound sulphur-fixing agent by the waste that rock ballast, slag, cinder etc. mainly contain calcium oxide form, the add-on of sulphur-fixing agent control Ca/s is 1~2.5 (sulphur is content in the raw material)
4, chlorine-solidifying agent is a yellow soda ash, and add-on control Na/Cl is 1~2 (chlorine is the content in the raw material);
5, ignition dope is Fe
2O
3Or La0.8Sr0.9Fe0.1O
3(claiming LSCF8291), its add-on was 0.1%~0.6% of a material quantity;
6, forming pressure is greater than 20Mpa; Hot pressing temperature is less than 160 ℃;
7, in composite biomass briquettes, the proportioning of biomass is 40%~100%.
Compare advantage and positively effect that the present invention has with known technology:
1) ultimate compression strength height, suitable long-distance transport;
2) needn't use binding agent, cost is low;
3) effectively utilize agriculture and forestry organic waste material and domestic refuse, changing waste into resources;
4) easily catch fire, easy to burn out, high performance clean burning;
5) low dust discharge, over-emitting black exhaust, sulfur-fixing rate height, noxious gas emission are not few;
6) ash few, can " bridging " phenomenon not appear in burner hearth, coal ash can fully utilize;
Embodiment 1
Proportioning: 40% biomass+60% brown coal add CaO (Ca/S=1.0), Na
2CO
3(Na/Cl=1.0) and account for the Fe of fuel total mass 0.1%
2O
3
Forming pressure: 50Mpa; 140 ℃ of hot pressing temperatures
Moulded coal size: diameter 35mm, long 30mm;
Temperature of combustion: 850 ℃
2) result of implementation
Moulded coal ultimate compression strength>20Mpa
Point of ignition: 343 ℃, composite briquette calorific value 20198.10Kj/kg;
Burn-off rate=96%, during burning thermal expansion less, can be automatically in the combustion processes broken, flying dust be few, does not observe black smoke;
Admittedly dredge rate 76%, Gu chlorine rate 70%, discharged nitrous oxides concentration<100mg.m
-3
Embodiment 2
1) implementation condition
The characteristic of biomass fuel and brown coal is with example 1;
Proportioning: 40% biomass+60% brown coal, with sulphur-fixing agent CaO (Ca/S=2.0), 0.15% LSCF-8291, Na
2CO
3(Na/Cl=2.0);
Forming pressure: 50Mpa; 150 ℃ of hot pressing temperatures
Moulded coal size: diameter 35mm, long 30mm;
Temperature of combustion: 850 ℃;
2) result of implementation
Moulded coal ultimate compression strength>20Mpa;
Point of ignition: 332 ℃, composite briquette calorific value 20250.06kJ/kg;
Burn-off rate>95%, lime-ash are not broken, dust emission concentration<0.85mg.m
-3
Sulfur-fixing rate=87%, Gu chlorine rate 81%, discharged nitrous oxides<100mg.m
-3
Embodiment 3
1) implementation condition
Proportioning: 60% biomass+40% brown coal add compound sulphur-fixing agent (CaO), carbide slag, iron series compound etc., Ca/S 〉=1.5), Na
2CO
3(Na/C=2.0), 0.2% mixing ignition dope (Fe
2O
3): LSCF-8291=1: 1)
Forming pressure: 50Mpa; 150 ℃ of mold temperatures
Moulded coal size: diameter 35mm, long 30mm;
Temperature of combustion; 850 ℃;
2) result of implementation
Moulded coal ultimate compression strength 〉=22Mpa;
Point of ignition=320 ℃, calorific value 18811.87kJ/kg;
Burn-off rate-97%, dust emission concentration<0.65mg.m
-3, do not have tangible black smoke to produce; Sulfur-fixing rate=92%, Gu chlorine rate 90%, discharged nitrous oxides is no more than 90mg.m
-3
Claims (7)
1, a kind of process for preparing composite biomass briquettes is characterized in that: biomass and raw coal as raw material, are aided with sulphur-fixing agent, chlorine-solidifying agent and ignition dope and mix after broken, drying, again through the hot-forming moulded coal that gets product.
2, process for preparing composite biomass briquettes according to claim 1 is characterized in that: biomass are meant crop stalk, forestry processing waste, domestic waste.
3, process for preparing composite biomass briquettes according to claim 1 is characterized in that: sulphur-fixing agent is calcium oxide, lime carbonate, and the weight ratio of sulphur content is 1~2.5 in its add-on and the raw material.
4, process for preparing composite biomass briquettes according to claim 1 is characterized in that: chlorine-solidifying agent is a yellow soda ash, and the weight ratio of cl content is 1~2 in its add-on and the raw material.
5, process for preparing composite biomass briquettes according to claim 1 is characterized in that: ignition dope is ferric oxide (Fe
2O
3), its add-on is 0.1%~0.6% of a material quantity.
6, process for preparing composite biomass briquettes according to claim 1 is characterized in that: in the hot pressing, pressure is greater than 20Mpa, and temperature is less than 160 ℃.
7, according to claim 1,2,3,4,5,6 described process for preparing composite biomass briquettes, it is characterized in that: the proportioning of biomass in raw material is 40~100%.
Priority Applications (1)
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---|---|---|---|
CNB011070331A CN1236027C (en) | 2001-01-11 | 2001-01-11 | Process for preparing composite biomass briquettes |
Applications Claiming Priority (1)
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---|---|---|---|
CNB011070331A CN1236027C (en) | 2001-01-11 | 2001-01-11 | Process for preparing composite biomass briquettes |
Publications (2)
Publication Number | Publication Date |
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CN1309166A true CN1309166A (en) | 2001-08-22 |
CN1236027C CN1236027C (en) | 2006-01-11 |
Family
ID=4655987
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CNB011070331A Expired - Fee Related CN1236027C (en) | 2001-01-11 | 2001-01-11 | Process for preparing composite biomass briquettes |
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Cited By (28)
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CN101812346A (en) * | 2010-02-02 | 2010-08-25 | 邢淦琛 | Method for forming biomass fuel |
CN101824351A (en) * | 2010-05-14 | 2010-09-08 | 哈尔滨圣炎科技发展有限公司 | Biomass energy-saving clean solid fuel and processing method thereof |
CN101899345A (en) * | 2009-05-25 | 2010-12-01 | 广州迪森热能技术股份有限公司 | Biomass molding fuels |
CN101899349A (en) * | 2010-07-27 | 2010-12-01 | 昆明理工大学 | Method for preparing solid renewable clean fuel from agricultural and forestry waste/domestic garbage |
CN102618338A (en) * | 2011-01-26 | 2012-08-01 | 中山市新薪生物燃料有限公司 | Technology and apparatus for producing slurry and solid fuel from garbage and biomasses |
CN102703153A (en) * | 2012-07-02 | 2012-10-03 | 昆明理工大学 | Preparation method of biomass moulding fuel |
CN101838571B (en) * | 2010-01-25 | 2013-05-29 | 长沙北极熊节能环保技术有限公司 | Productive technology of tubular biomass fuel |
CN103380342A (en) * | 2010-12-15 | 2013-10-30 | Gtl能源控股有限公司 | Methods of drying biomass and carbonaceous materials |
CN104164269A (en) * | 2014-08-26 | 2014-11-26 | 山东大学 | Biomass solid formation fuel additive and doping method thereof |
CN104232231A (en) * | 2014-09-18 | 2014-12-24 | 济南宝华新能源技术有限公司 | Biomass-based fuel and preparation method |
CN104456530A (en) * | 2013-09-14 | 2015-03-25 | 综研技术株式会社 | Briquette and briquette combustion method |
CN104646391A (en) * | 2014-12-18 | 2015-05-27 | 无锡荣博能源环保科技有限公司 | Kitchen waste energy treatment process |
CN104745266A (en) * | 2015-03-02 | 2015-07-01 | 临安吉晨生物质能源科技有限公司 | Biomass briquette fuel |
CN104987905A (en) * | 2015-08-10 | 2015-10-21 | 南开大学 | Biogas residue made coal briquette binder and coal briquette manufacturing method |
CN106765060A (en) * | 2016-11-23 | 2017-05-31 | 广东东燃热能科技有限公司 | A kind of thermal efficiency combustion method for improving Industrial Boiler using biomass fuel |
CN106929068A (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 granulated garbage |
CN106929081A (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 for being coated with low-order coal and particulate matter |
CN106929053A (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 containing low-order coal and particulate matter |
CN107236555A (en) * | 2016-03-29 | 2017-10-10 | 北京三聚环保新材料股份有限公司 | A kind of technique that upgrading is carried out to the molding mass containing low-order coal, rubbish and biomass |
CN107236560A (en) * | 2016-03-29 | 2017-10-10 | 北京三聚环保新材料股份有限公司 | A kind of technique that coking is carried out to the molding mass containing low-order coal, rubbish and biomass |
CN107236564A (en) * | 2016-03-29 | 2017-10-10 | 北京三聚环保新材料股份有限公司 | A kind of technique that coking is carried out to the molding mass containing low-order coal and biomass |
CN107236562A (en) * | 2016-03-29 | 2017-10-10 | 北京三聚环保新材料股份有限公司 | A kind of technique that coking is carried out to the molding mass containing low-order coal and rubbish |
CN107236579A (en) * | 2016-03-29 | 2017-10-10 | 北京三聚环保新材料股份有限公司 | The moulding process and the molding mass as made from the technique of a kind of low-order coal and rubbish |
CN107236561A (en) * | 2016-03-29 | 2017-10-10 | 北京三聚环保新材料股份有限公司 | A kind of low-order coal, the moulding process of rubbish and biomass and the molding mass as made from the technique |
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