CN106701246A - Method for producing clean biomass briquettes - Google Patents

Method for producing clean biomass briquettes Download PDF

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Publication number
CN106701246A
CN106701246A CN201710155285.XA CN201710155285A CN106701246A CN 106701246 A CN106701246 A CN 106701246A CN 201710155285 A CN201710155285 A CN 201710155285A CN 106701246 A CN106701246 A CN 106701246A
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China
Prior art keywords
coal
biomass
certain
raw
crushed
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Pending
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CN201710155285.XA
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Chinese (zh)
Inventor
李维尊
鞠美庭
刘乐
王雁南
木合塔尔·吐尔洪
王晶
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Kashi, University of
Nankai University
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Kashi, University of
Nankai University
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Priority to CN201710155285.XA priority Critical patent/CN106701246A/en
Publication of CN106701246A publication Critical patent/CN106701246A/en
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/04—Raw material of mineral origin to be used; Pretreatment thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
    • C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
    • C10L5/105—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with a mixture of organic and inorganic binders
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
    • C10L5/442—Wood or forestry waste
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
    • C10L5/445—Agricultural waste, e.g. corn crops, grass clippings, nut shells or oil pressing residues
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2200/00—Components of fuel compositions
    • C10L2200/02—Inorganic or organic compounds containing atoms other than C, H or O, e.g. organic compounds containing heteroatoms or metal organic complexes
    • C10L2200/029—Salts, such as carbonates, oxides, hydroxides, percompounds, e.g. peroxides, perborates, nitrates, nitrites, sulfates, and silicates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
    • C10L2230/22—Function and purpose of a components of a fuel or the composition as a whole for improving fuel economy or fuel efficiency
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/08—Drying or removing water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/24—Mixing, stirring of fuel components
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/32—Molding or moulds
    • 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

Abstract

The invention relates to a method for producing clean biomass briquettes. The method is characterized by comprising the following steps: crushing raw coal to obtain crushed raw coal with a certain grain size range, and crushing a biomass material to obtain a crushed biomass material with a certain grain size range; adding the crushed biomass material into an alkali solution with certain concentration, heating the temperature of the solution to a certain temperature, and maintaining the temperature for a certain time, so as to form a mixed solution, i.e., a mixed binder; uniformly mixing the mixed binder, the crushed raw coal and a desulfuration and denitration agent, subjecting the raw material mixture to pressure forming at a certain forming pressure by using molds, demolding the formed briquettes, and drying the briquettes, thereby obtaining the biomass briquette products. The method has the advantages and beneficial effects that the clean biomass briquettes are produced from the waste biomass material and coal, which serve as raw materials, under the condition of not adding a binder, the production process is feasible, is simple in operation and is free of waste generation, and the produced biomass briquettes are high in burning efficiency and low in pollutant emission, so that the popularization and application are facilitated.

Description

A kind of production method of clean biometric matter moulded coal
Technical field
The present invention relates to Filter Tuber For Clean Coal application field, particularly a kind of production method of clean biometric matter moulded coal.
Background technology
Since 2010, the energy consumption of China leapt to the first in the world.In the energy resource structure of China, coal The proportion that production and consumption account for primary energy is up to 75%, therefore China is coal production and country of consumption maximum in the world.Coal A large amount of consumption result in a series of serious environmental problems, numerous studies confirm that coal burning is to cause northern China, especially It is one of primary pollution source of the serious haze weather in Beijing-tianjin-hebei Region.However, the resources characteristic of China is determined following suitable In one period long, the sustainable development of China's economy is still to rely on a large amount of consumption of coal.Additionally, it is contemplated that, with High-quality coal is gradually produced totally, and the low bituminous coal and lignite for becoming degree largely will be exploited and used, and this will be to big Bring huge pressure in compression ring border.Therefore, improve coal utilization efficiency and reduce coal to greatest extent and use process discharge Pollution, as one in the urgent need to the technical barrier captured.The production development of clean coal and popularization and application, for supporting economic society The sustainable development and environmental protection of meeting have vital strategic importance.
China is also large agricultural country, and agricultural production produces a large amount of biomass class solid waste every year, form one it is general Time social concern.Before and after 2010, some direct crop straw burnings generate serious atmosphere polluting problem.In recent years, various regions The strict policy for forbidding burning straw is implemented, but how effectively to process disposal stalk solid waste is still one Individual pendent problem, the discarding of a large amount of stalks and landfill not only take substantial amounts of cultivated land resource, and may cause serious Underground water and surface water pollution.In fact, stalk is all most important fuel in very long human history.In the forest reserves Abundant Switzerland, substantial amounts of forestry waste is processed to biomass solid formed fuel, there is provided a considerable amount of energy are supplied Should.Therefore for China's stalk resource the characteristics of, value of the stalk as fuel is excavated again, with huge theoretical and reality Meaning.
In recent years, generated electricity around biomass and coal cofiring both at home and abroad and expand extensive research, it is proposed that some are valuable Utilization ways.However, densified straw is relatively low to determine that its energy density is relatively low, its collect and, transport and storage can bring Larger cost.The mixed combustion for directly carrying out stalk and coal using traditional coal-burning boiler easilys lead to equipment and blocks, and right The transformation and upgrade that burning boiler is carried out also result in extra cost to be increased.Biomass type is prepared by raw material of coal and biomass Coal, is the effective scheme for solving the above problems.First, stalk can play a part of binding agent, reduce making for other binding agents With and its deficiency brought, while burning-point can also be reduced, improve the ease for use of biomass coal.On the other hand, by compacting Shaping, drastically increases the energy density of fuel, is readily transported and stores.On this basis, if by appropriate desulfurization Agent and denitrfying agent, can also be greatly decreased its disposal of pollutants for using process, improve the spatter property of fuel.Patent CN103666617A discloses a kind of method that utilization bagasse powder and raw coal prepare low-sulfur industrial briquette, and the method passes through hydroxide Sodium solution immersion improves the caking property of biomass.However, this class method be required for washing biomass and being dried so as to Increase extra cost, and alkali waste can be produced.
The content of the invention
It is low it is an object of the invention to solve coal and biomass economy efficiency, the problems such as easy generation environment pollutes, and The shortcoming for overcome big biomass coal production technology process complexity, difficulty of processing, high cost, easily producing secondary pollution, there is provided One kind with biomass and coal as raw material, the method for producing clean biometric matter moulded coal, including following production stage：
Coal is crushed to certain particle size scope, and biological material is crushed to certain particle size scope.By the biology after crushing Matter raw material is added in certain density aqueous slkali, is heated to uniform temperature and is kept for the regular hour, and what is formed after treatment is mixed Close liquid and be directly used as hybrid adhesive.Hybrid adhesive is well mixed with the raw coal by crushing, out of stock dose of desulfurization, using mould Tool will be press-formed under the above-mentioned certain briquetting pressure of raw mixture, and the moulded coal demoulding after shaping obtains biology after drying Matter briquette prod.
Wherein biomass refer to wood fibre that is inedible, being mainly made up of cellulose, hemicellulose and lignin Plain biolobic material material.
Wherein, described biomass mainly include forestry waste, prepared by biomass straw and seed hull, biodiesel During the big biomass class solid waste of yield such as residue that produces.Preferably, biomass are mainly processed using forestry Discarded wood chip, the wheat bran of processing of farm products generation and husk for producing etc. are easy to the biological material collected.Raw coal includes passing through The coal feedstock of sorting, coal slime and gangue with certain calorific value, preferably.Aqueous slkali mainly include sodium hydroxide solution, The mixed solution of aqua calcis, calcium acetate solution and NaOH, calcium hydroxide and calcium acetate solution composition.
Wherein, described biomass material and raw coal grinding particle size are less than 10mm, it is further preferred that granularity is less than 5mm, Most preferably less than 1mm.
Wherein, the sodium hydroxide solution of the aqueous slkali mass fraction 0.5-30% used when binding agent is produced, heating-up temperature 50-150 DEG C, the heat time is 0.5-10h, and biomass are 1-20 with the mass ratio of aqueous slkali:100,70-130 DEG C of heating-up temperature, The sodium hydroxide solution of heat time 1-5h, more preferably 5-20%, biomass are 3-7 with the mass ratio of aqueous slkali:100, Most preferably 2% sodium hydroxide solution, biomass are 10 with the mass ratio of aqueous slkali:100,80-95 DEG C, heat time 1.5- 2.5h。
Wherein, described binding liquid and the mass ratio of raw coal are 5-80:100, the mass ratio of described binding liquid and raw coal It is 20-40:100.
Wherein, described briquetting pressure 8-35Mpa, more preferably 10-20Mpa.
The advantages of the present invention are：It is raw material with the biological material and coal discarded, without bonding Clean biometric matter moulded coal is produced under conditions of agent, production technology is feasible, simple to operate, produced without discarded object, and production birth Material Combustion of Mould Coal efficiency high, disposal of pollutants are few, easy to utilize.
Specific embodiment
The present invention is described in further detail by following examples, but the technology contents that are described of the present embodiment be it is illustrative, without It is limited, protection scope of the present invention should not be limited to according to this.
Embodiment 1：
A kind of production method of clean biometric matter moulded coal, comprises the following steps：
Biomass use husk, are crushed to granularity less than 1mm.Raw coal is crushed to granularity and is less than using the coal of Datong District's production 1mm.By the sodium hydroxide solution of husk and mass fraction 2% according to mass ratio 4:100 are well mixed, and are heated to 90 DEG C of reaction 2h, Obtain binding agent.It is 30 according to mass ratio by above-mentioned binding liquid and raw coal:100 mixing and stirrings, in the shaping pressure of 18Mpa It is compressing under power, it is made biomass type product of coal.The briquette prod prepared is tested by analysis, and caloric value is 22.1MJ/ Kg, compression strength 40N/cm2, sulfur-fixing rate 63%, flue dust clearance 75%.
Embodiment 2：
A kind of production method of clean biometric matter moulded coal, comprises the following steps：
Biomass use wheat bran, are crushed to granularity less than 1mm.Raw coal is crushed to granularity and is less than using the coal of Datong District's production 1mm.By the sodium hydroxide solution of husk and mass fraction 1.5% according to mass ratio 4:100 are well mixed, and are heated to 90 DEG C of reactions 1.5h, obtains binding agent.It is 30 according to mass ratio by above-mentioned binding liquid and raw coal:100 mixing and stirrings, 20Mpa's It is compressing under briquetting pressure, it is made biomass type product of coal.The briquette prod prepared is tested by analysis, and caloric value is 24MJ/kg, compression strength 37N/cm2, sulfur-fixing rate 59%, flue dust clearance 72%.
Embodiment 3：
A kind of production method of clean biometric matter moulded coal, comprises the following steps：
Biomass are crushed to granularity less than 1mm using discarded wood chip.Raw coal is crushed to granularity small using the coal of Datong District's production In 1mm.By the sodium hydroxide solution of husk and mass fraction 2.5% according to mass ratio 4:100 are well mixed, and are heated to 90 DEG C instead 2h is answered, binding agent is obtained.It is 30 according to mass ratio by above-mentioned binding liquid and raw coal:100 mixing and stirrings, 18Mpa's It is compressing under briquetting pressure, it is made biomass type product of coal.The briquette prod prepared is tested by analysis, and caloric value is 26MJ/kg, compression strength 40N/cm2, sulfur-fixing rate 65%, flue dust clearance 78%.

Claims (3)

1. a kind of production method of clean biometric matter moulded coal, it is characterised in that comprise the following steps：
Raw coal is crushed to certain particle size scope, and biological material is crushed to certain particle size scope.By the biology after crushing Matter raw material is added in certain density aqueous slkali, is heated to uniform temperature and is kept for the regular hour, and what is formed after treatment is mixed Close liquid and form hybrid adhesive.Hybrid adhesive is well mixed with the raw coal by crushing, out of stock dose of desulfurization, will using grinding tool It is press-formed under the certain briquetting pressure of above-mentioned raw mixture, the de- mill of the moulded coal after shaping obtains biomass type after drying Product of coal.
2. a kind of method of the production of clean biometric matter moulded coal according to claim 1, it is characterised in that：Biomass used Raw material and raw coal grinding particle size are less than 10mm, it is further preferred that granularity is less than 5mm, most preferably less than 1mm.
3. a kind of method of the production of clean biometric matter moulded coal according to claim 1, it is characterised in that：During production binding agent The sodium hydroxide solution of aqueous slkali mass fraction 0.5-30% used, 50-150 DEG C of heating-up temperature, the heat time is 0.5-10h, Biomass are 1-20 with the mass ratio of aqueous slkali:100,70-130 DEG C of heating-up temperature, more preferably heat time 1-5h, 5- 20% sodium hydroxide solution, biomass are 3-7 with the mass ratio of aqueous slkali:100, most preferably 2% sodium hydroxide solution is raw Material is 10 with the mass ratio of aqueous slkali:100,80-95 DEG C, heat time 1.5-2.5h.Described briquetting pressure 8-35Mpa.
CN201710155285.XA 2017-03-16 2017-03-16 Method for producing clean biomass briquettes Pending CN106701246A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108148645A (en) * 2017-12-19 2018-06-12 中国矿业大学 A kind of fresh straw makees the clean moulded coal preparation method of binding agent
CN115418257A (en) * 2022-07-07 2022-12-02 中国科学院大学 Carbon-based desulfurization and denitrification double-effect catalytic additive for decoupling combustion type coal, and preparation method and application method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102358860A (en) * 2011-09-26 2012-02-22 三明学院 Molded coal binder, biomass molded coal containing the molded coal binder and their preparation methods
CN103666617A (en) * 2013-12-20 2014-03-26 广西柳州浚业科技有限公司 Economical low-sulfur industrial briquette
CN104987909A (en) * 2015-08-10 2015-10-21 南开大学 Method for producing low-sulfur briquette by utilizing abandoned biomass of saline-alkali soil
AU2014227899A1 (en) * 2013-03-15 2015-10-22 Enginuity Worldwide, LLC Composite carbonaceous fuel compact

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102358860A (en) * 2011-09-26 2012-02-22 三明学院 Molded coal binder, biomass molded coal containing the molded coal binder and their preparation methods
AU2014227899A1 (en) * 2013-03-15 2015-10-22 Enginuity Worldwide, LLC Composite carbonaceous fuel compact
CN103666617A (en) * 2013-12-20 2014-03-26 广西柳州浚业科技有限公司 Economical low-sulfur industrial briquette
CN104987909A (en) * 2015-08-10 2015-10-21 南开大学 Method for producing low-sulfur briquette by utilizing abandoned biomass of saline-alkali soil

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108148645A (en) * 2017-12-19 2018-06-12 中国矿业大学 A kind of fresh straw makees the clean moulded coal preparation method of binding agent
CN115418257A (en) * 2022-07-07 2022-12-02 中国科学院大学 Carbon-based desulfurization and denitrification double-effect catalytic additive for decoupling combustion type coal, and preparation method and application method thereof

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