CN1309166A - Process for preparing composite biomass briquettes - Google Patents

Process for preparing composite biomass briquettes Download PDF

Info

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
Authority
CN
China
Prior art keywords
biomass
preparing composite
composite biomass
coal
raw material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN 01107033
Other languages
Chinese (zh)
Other versions
CN1236027C (en
Inventor
王�华
何方
马文会
姚刚
包桂荣
胡建杭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunming University of Science and Technology
Original Assignee
Kunming University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kunming University of Science and Technology filed Critical Kunming University of Science and Technology
Priority to CNB011070331A priority Critical patent/CN1236027C/en
Publication of CN1309166A publication Critical patent/CN1309166A/en
Application granted granted Critical
Publication of CN1236027C publication Critical patent/CN1236027C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Landscapes

  • 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
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%.
CNB011070331A 2001-01-11 2001-01-11 Process for preparing composite biomass briquettes Expired - Fee Related CN1236027C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB011070331A CN1236027C (en) 2001-01-11 2001-01-11 Process for preparing composite biomass briquettes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB011070331A CN1236027C (en) 2001-01-11 2001-01-11 Process for preparing composite biomass briquettes

Publications (2)

Publication Number Publication Date
CN1309166A true CN1309166A (en) 2001-08-22
CN1236027C CN1236027C (en) 2006-01-11

Family

ID=4655987

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB011070331A Expired - Fee Related CN1236027C (en) 2001-01-11 2001-01-11 Process for preparing composite biomass briquettes

Country Status (1)

Country Link
CN (1) CN1236027C (en)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN108329970A (en) * 2018-02-07 2018-07-27 合肥嘉仕诚能源科技有限公司 A kind of environment-friendly biomass fuel and preparation method
CN109022086A (en) * 2018-08-06 2018-12-18 安徽上元新型家居材料有限公司 A kind of straw fuel rod and its preparation process
CN111545552A (en) * 2020-05-14 2020-08-18 姜心刚 Energy-recycling production method for municipal domestic waste
CN115161090A (en) * 2022-07-06 2022-10-11 华电电力科学研究院有限公司 Method for preparing biomass fuel by using waste and biomass fuel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100434801C (en) * 2006-09-22 2008-11-19 广州广重企业集团有限公司 Stalks boiler fuel treating method and equipment
CN105586103A (en) * 2015-08-10 2016-05-18 南开大学 Application method of composite solid alkali additive in biomass coal preparation

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
CN101812346A (en) * 2010-02-02 2010-08-25 邢淦琛 Method for forming biomass fuel
CN101824351B (en) * 2010-05-14 2013-08-21 哈尔滨圣炎科技发展有限公司 Biomass energy-saving clean solid fuel and processing method thereof
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
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
CN101899349B (en) * 2010-07-27 2013-04-10 昆明理工大学 Method for preparing solid renewable clean fuel from agricultural and forestry waste/domestic garbage
CN103380342A (en) * 2010-12-15 2013-10-30 Gtl能源控股有限公司 Methods of drying biomass and carbonaceous materials
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
CN104456530A (en) * 2013-09-14 2015-03-25 综研技术株式会社 Briquette and briquette combustion method
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
CN104232231B (en) * 2014-09-18 2016-08-24 济南宝华新能源技术有限公司 A kind of biomass-based fuel and preparation 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
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
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
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
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
CN107236564B (en) * 2016-03-29 2020-02-28 北京三聚环保新材料股份有限公司 Process for coking molding material containing low-rank coal 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
CN107236561B (en) * 2016-03-29 2020-02-28 北京三聚环保新材料股份有限公司 Low-rank coal, garbage and biomass molding process and molding material prepared by process
CN107236560B (en) * 2016-03-29 2020-02-28 北京三聚环保新材料股份有限公司 Process for coking molding material containing low-rank coal, garbage and biomass
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
CN107236555B (en) * 2016-03-29 2020-02-28 北京三聚环保新材料股份有限公司 Process for improving quality of molding material containing low-rank coal, garbage and biomass
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
CN108329970A (en) * 2018-02-07 2018-07-27 合肥嘉仕诚能源科技有限公司 A kind of environment-friendly biomass fuel and preparation method
CN109022086A (en) * 2018-08-06 2018-12-18 安徽上元新型家居材料有限公司 A kind of straw fuel rod and its preparation process
CN111545552A (en) * 2020-05-14 2020-08-18 姜心刚 Energy-recycling production method for municipal domestic waste
CN111545552B (en) * 2020-05-14 2023-03-03 姜心刚 Energy-recycling production method for municipal domestic waste
CN115161090A (en) * 2022-07-06 2022-10-11 华电电力科学研究院有限公司 Method for preparing biomass fuel by using waste and biomass fuel

Also Published As

Publication number Publication date
CN1236027C (en) 2006-01-11

Similar Documents

Publication Publication Date Title
CN1236027C (en) Process for preparing composite biomass briquettes
CN103613362B (en) Light brick and preparation method thereof
CN1810940A (en) Sludge fuel stick and its prepn
CN101899345A (en) Biomass molding fuels
CN108410534A (en) A kind of biomass granule fuel
CN110982576B (en) Fly ash treatment method of compatible RDF and intermediate product thereof
CN102776050B (en) Chlorine fixing agent suitable for waste derived fuel, and preparation method and application thereof
CN1837335A (en) Hybrid fuel and method for preparing the same
CN104629848A (en) Granular biomass fuel and preparation method thereof
CN101469283A (en) Coal briquette and method for producing the same
CN111548835A (en) Environment-friendly clean coal and preparation method thereof
CN108239562A (en) A kind of biomass compound fuel
CN105950250A (en) Environment-friendly and inflammable fuel rod and manufacturing process thereof
CN108329970A (en) A kind of environment-friendly biomass fuel and preparation method
CN103710064B (en) Sludge-lignite molded fuel and preparation method thereof
CN100363475C (en) Preparation method of city refuse incineration furnace granular fuel
CN103215103A (en) Biological combustion improver
CN102041125A (en) Fuel bar and preparation method thereof
CN2525381Y (en) New high efficiency refuse pyrolytic incinerator
CN101649236A (en) Energy-saving desulfuration anthracite produced by bitumite and production method thereof
CN115368945A (en) Briquette prepared from gasified fine slag, semi-coke powder and biomass binder and preparation method thereof
CN1268552A (en) Formed coal (coke) fuel with inflammable, water-proof and sulfur-fixng functions
CN101659892A (en) Biofuel and preparing method thereof
CN1454975A (en) Sulfur-fixing briquette and its making process
CN112111311A (en) Biomass granular fuel and preparation method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee