CN106190400A - A kind of method preparing efficient biomass shaped fuel - Google Patents

A kind of method preparing efficient biomass shaped fuel Download PDF

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Publication number
CN106190400A
CN106190400A CN201610631409.2A CN201610631409A CN106190400A CN 106190400 A CN106190400 A CN 106190400A CN 201610631409 A CN201610631409 A CN 201610631409A CN 106190400 A CN106190400 A CN 106190400A
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China
Prior art keywords
shaped fuel
fuel
arachidis hypogaeae
pericarppium arachidis
temperature
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Pending
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CN201610631409.2A
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Chinese (zh)
Inventor
杨佩华
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Guangxi Nanning Shengqian Technology Development Co Ltd
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Guangxi Nanning Shengqian Technology Development Co Ltd
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Priority to CN201610631409.2A priority Critical patent/CN106190400A/en
Publication of CN106190400A publication Critical patent/CN106190400A/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
    • 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
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C10L10/02—Use of additives to fuels or fires for particular purposes for reducing smoke development
    • 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
    • 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
    • C10L9/00—Treating solid fuels to improve their combustion
    • C10L9/10—Treating solid fuels to improve their combustion by using additives
    • 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
    • C10L2290/32—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

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

The invention discloses a kind of method preparing efficient biomass shaped fuel, be Pericarppium arachidis hypogaeae to add pulverizer be crushed to 40 60 mesh, obtain Pericarppium arachidis hypogaeae powder；Pericarppium arachidis hypogaeae powder, magnesium oxide, red mud and cobalt carbonate are added agitator, adds suitable quantity of water and stir into pastel；Taking above-mentioned pastel and put into muffle furnace, at temperature is 600 800 DEG C, roasting 3 4h, obtains carbide；After being mixed homogeneously with sodium carboxymethyl cellulose rubber cement and bituminous epoxy by carbide, the mixed material obtained is delivered to forming machine, is 110 130 DEG C in temperature, and pressure is extruded under 60 80Mpa, obtains shaped fuel；Shaped fuel is dried, is cooled to room temperature, packaging, obtain biomass molding fuel.The calorific value of biomass molding fuel product prepared by the present invention is 25 30MJ/kg, and content of ashes is 2.5 4.0%, and water absorption rate is 8 10%, and properties is better than current commercial product.

Description

A kind of method preparing efficient biomass shaped fuel
Technical field
The present invention relates to biomass fuel processing technique field, a kind of side preparing efficient biomass shaped fuel Method.
Background technology
For a long time, the Fossil fuel such as oil, natural gas, coal is always the main energy sources that the mankind consume, and is the mankind Economical prosperity, the progress of society and growth in the living standard are made that the biggest contribution.But due to coal, oil and natural gas etc. Mineral resources are non-renewable, and resource is limited, are faced with the danger petered out.In recent years, the energy, environmental problem Outstanding day by day, energy prices continuous rise, whole world research and development bioenergy becomes focus.China is a large agricultural country, biological Mass-energy resource is the abundantest.But the utilization rate of crops leftovers only reaches 20-30%, agricultural waste material there are about half abandon in Wilderness fails to utilize even burns, and not only can not be comprehensively utilized, and causes the serious waste of resource, and pollutes environment.Biological The compact formed technology of matter can fully comprehensively utilize plant resources and prepare biomass molding fuel, can effectively alleviate the current energy Crises problem.
Biomass molding fuel is to utilize compact formed technology that biomass processing becomes easily storage and the convenient life used Material grains or bar-shaped, patch fuel, have that volume is little, capacity is big, calorific value is high, combusting firepower is prosperous, raw material the most easily takes, can be again The characteristic such as raw, in combustion process, deslagging is few, flue dust and the advantage such as content of sulfur dioxide is low, environmental pollution is little, is coal and fuel wood Outstanding alternative fuel.China's introduction of foreign technology eighties in 20th century begins one's study and develops biomass moulding technology, the most Begin to take shape. through continuous research and development, having been achieved for bigger development, the enterprise of former is researched and produced in the whole nation Or existing tens of R&D institution.But China's biomass molding fuel there are still bigger problem now, processing technique is complicated, difficult Degree is big, energy consumption is big, cost is high；Shaped fuel excess-heat value, moisture content and ash are difficult to control to；Shaped fuel holds in combustion Easily slagging scorification, easy dust stratification, so that fuel combustion is insufficient, not only pollutes environment and has also corroded production equipment；Due to processing system Grain raw material be high microsteping material, raw material is loose, size and material variation, when grain forming, difficulty is pressed into compact grain Shape；The rough of molding, various shapes also have impact on sales volume, and what these problems were serious constrains biomass moulding combustion The large-scale production of material.
Summary of the invention
The problem existed for current biomass preparation of fuel of the present invention, it is provided that one prepares efficient biomass molding combustion The method of material, prepared biomass molding fuel has that density is little, calorific value is high, ash is few, the internal voids of product is little, the most loose Dissipate, humidity resistance is good, can the advantage such as preservation for a long time.
In order to realize object above, the technical solution used in the present invention is as follows:
A kind of method preparing efficient biomass shaped fuel, with weight ratio as 100:5-10:5-8:2-4:5-10:5-8 Pericarppium arachidis hypogaeae, magnesium oxide, red mud, cobalt carbonate, sodium carboxymethyl cellulose rubber cement and bituminous epoxy are raw material, by pulverizing, molding, do The operation such as dry prepares；Described method concrete operation step is as follows:
(1) Pericarppium arachidis hypogaeae is added pulverizer and be crushed to 40-60 mesh, obtain Pericarppium arachidis hypogaeae powder；
(2) Pericarppium arachidis hypogaeae powder, magnesium oxide, red mud and cobalt carbonate are added agitator, add suitable quantity of water and stir into pastel；
(3) taking above-mentioned pastel and put into muffle furnace, at temperature is 600-800 DEG C, roasting 3-4h, obtains carbide；
(4), after being mixed homogeneously with sodium carboxymethyl cellulose rubber cement and bituminous epoxy by carbide, the mixed material obtained is delivered to Forming machine, is 110-130 DEG C in temperature, and pressure is extruded under 60-80Mpa, obtains shaped fuel；
(5) shaped fuel is dried, be cooled to room temperature, packaging, obtain biomass molding fuel.
Preferably, above step (2) described stirring is stirring 20-30min under rotating speed is 300-500r/min.
Preferably, the heating rate of above step (3) described roasting is 5-10 DEG C/min.
Preferably, the mass concentration of the above sodium carboxymethyl cellulose rubber cement is 15%.
Preferably, above step (5) described drying is to dry shaped fuel at temperature is 60-80 DEG C to water content to be 6-8%。
Compared with prior art, advantages of the present invention and good effect are:
1, the present invention uses agricultural waste material Pericarppium arachidis hypogaeae as primary raw material, and raw material sources are extensive, cheap, the most comprehensively Make use of garbage, reduce environmental pollution, it is achieved the sustainable development of resource, moreover it is possible to effectively alleviate current energy crisis and ask Topic, the charcoal ash after biomass molding fuel burning simultaneously can be used as again fertilizer, expands the using value of Pericarppium arachidis hypogaeae.
2, the present invention is by magnesium oxide, red mud and the common effect of cobalt carbonate, it is possible to decrease the burning-point of shaped fuel, improves combustion The fusing point of material ash, solves easily slagging scorification, easy dust stratification, insufficient the asking of burning in combustion of current biomass shaped fuel Topic.
3, the present invention adds sodium carboxymethyl cellulose rubber cement and bituminous epoxy in biomass molding fuel, due to carboxymethyl Sodium cellulosate rubber cement and bituminous epoxy have stronger caking property and adsorptivity, so that the product arrived is fine and close, the loosest, no Easily deliquescence, can preserve for a long time, simultaneously can the harmful gas that produces in combustion of adsorbed fuel.
4, the present invention adds magnesium oxide in shaped fuel, can play combustion-supporting effect, make molding in fuel combustion process The reactivity of fuel is improved, it is possible to reach the effect fully burnt completely；Magnesium oxide plays solid sulfur in combustion Effect, make sulfur dioxide reaction generate magnesium sulfate, thus reduce the discharge of form waste gas of sulfur dioxide；The most also there is bonding, prevent Water and the effect of enhancing.
The calorific value of the biomass molding fuel product that 5, prepared by the present invention is 25-30MJ/kg, and content of ashes is 2.5- 4.0%, water absorption rate is 8-10%, and properties is better than current commercial product.
6, the inventive method has that preparation technology is simple, it is low to consume energy, production efficiency is high, ratio of briquetting is high, low cost and other advantages, Prepare biomass fuel density little, calorific value is high, ash is few, the internal voids of product is little, the loosest, humidity resistance is good, can Long-term preservation, it is adaptable to industrialized production.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further described, but is not limited to protection scope of the present invention.
Embodiment 1
A kind of method preparing efficient biomass shaped fuel, comprises the following steps:
(1) 100kg Pericarppium arachidis hypogaeae addition pulverizer is crushed to 40 mesh, obtains Pericarppium arachidis hypogaeae powder；
(2) Pericarppium arachidis hypogaeae powder, magnesium oxide 7kg, red mud 5kg and cobalt carbonate 2kg are added agitator, add 120kg water, turning Speed is stirring 20min under 500r/min, obtains pastel；
(3) taking above-mentioned pastel and put into muffle furnace, at temperature is 600 DEG C, roasting 4h, obtains carbide；
(4) after carbide being mixed homogeneously with sodium carboxymethyl cellulose rubber cement 6kg and bituminous epoxy 7kg, the mixed material obtained Being delivered to forming machine, be 110 DEG C in temperature, pressure is extruded under 80Mpa, obtains shaped fuel；
(5) being dried at temperature is 60 DEG C by shaped fuel to water content is 8%, is cooled to room temperature, packaging, obtains biomass Type fuel.
Embodiment 2
A kind of method preparing efficient biomass shaped fuel, comprises the following steps:
(1) 100kg Pericarppium arachidis hypogaeae addition pulverizer is crushed to 40 mesh, obtains Pericarppium arachidis hypogaeae powder；
(2) Pericarppium arachidis hypogaeae powder, magnesium oxide 5kg, red mud 7kg and cobalt carbonate 3kg are added agitator, add 120kg water, turning Speed is stirring 30min under 300r/min, obtains pastel；
(3) taking above-mentioned pastel and put into muffle furnace, at temperature is 700 DEG C, roasting 3.5h, obtains carbide；
(4) after carbide being mixed homogeneously with sodium carboxymethyl cellulose rubber cement 10kg and bituminous epoxy 5kg, the mixed material obtained Being delivered to forming machine, be 120 DEG C in temperature, pressure is extruded under 100Mpa, obtains shaped fuel；
(5) being dried at temperature is 60 DEG C by shaped fuel to water content is 8%, is cooled to room temperature, packaging, obtains biomass Type fuel.
Embodiment 3
A kind of method preparing efficient biomass shaped fuel, comprises the following steps:
(1) 100kg Pericarppium arachidis hypogaeae addition pulverizer is crushed to 60 mesh, obtains Pericarppium arachidis hypogaeae powder；
(2) Pericarppium arachidis hypogaeae powder, magnesium oxide 8kg, red mud 8kg and cobalt carbonate 3kg are added agitator, add 150kg water, turning Speed is stirring 30min under 500r/min, obtains pastel；
(3) taking above-mentioned pastel and put into muffle furnace, at temperature is 800 DEG C, roasting 3.5h, obtains carbide；
(4) after carbide being mixed homogeneously with sodium carboxymethyl cellulose rubber cement 8kg and bituminous epoxy 8kg, the mixed material obtained Being delivered to forming machine, be 130 DEG C in temperature, pressure is extruded under 80Mpa, obtains shaped fuel；
(5) being dried at temperature is 80 DEG C by shaped fuel to water content is 6%, is cooled to room temperature, packaging, obtains biomass Type fuel.
Embodiment 4
A kind of method preparing efficient biomass shaped fuel, comprises the following steps:
(1) 100kg Pericarppium arachidis hypogaeae addition pulverizer is crushed to 60 mesh, obtains Pericarppium arachidis hypogaeae powder；
(2) Pericarppium arachidis hypogaeae powder, magnesium oxide 10kg, red mud 5kg and cobalt carbonate 4kg are added agitator, add 150kg water, Rotating speed is stirring 30min under 300r/min, obtains pastel；
(3) taking above-mentioned pastel and put into muffle furnace, at temperature is 800 DEG C, roasting 3h, obtains carbide；
(4) after carbide being mixed homogeneously with sodium carboxymethyl cellulose rubber cement 9kg and bituminous epoxy 6kg, the mixed material obtained It is delivered to forming machine, is 120 DEG C in temperature, extruded under pressure 100Mpa, obtain shaped fuel；
(5) being dried at temperature is 80 DEG C by shaped fuel to water content is 6%, is cooled to room temperature, packaging, obtains biomass Type fuel.
Through biomass molding fuel prepared by detection above example 1-4, the calorific value of product, content of ashes and water absorption Can be as shown in the table:
Sample Calorific value (MJ/kg) Content of ashes (%) Water absorption rate (%)
Embodiment 1 25.7 3.16 8.8
Embodiment 2 26.3 3.78 9.2
Embodiment 3 29.4 2.59 9.7
Embodiment 4 28.9 3.08 8.4
Drawing from testing result, the calorific value of present invention biomass molding fuel product is 25-30MJ/kg, content of ashes is 2.5-4.0%, water absorption rate are 8-10%1, and properties is better than current commercial product.
Above content is it cannot be assumed that the present invention is embodied as being confined to these explanations, for the technical field of the invention Those of ordinary skill for, without departing under present inventive concept premise, it is also possible to make some simple deduction or replace, all answer When being considered as belonging to the scope of patent protection that the present invention is determined by the claims submitted to.

Claims (5)

1. the method preparing efficient biomass shaped fuel, it is characterised in that: it is with weight ratio as 100:5-10:5-8:2- The Pericarppium arachidis hypogaeae of 4:5-10:5-8, magnesium oxide, red mud, cobalt carbonate, sodium carboxymethyl cellulose rubber cement and bituminous epoxy are raw material, pass through Pulverizing, molding, be dried etc. operation prepare；Described method concrete operation step is as follows:
Pericarppium arachidis hypogaeae is added pulverizer and is crushed to 40-60 mesh, obtain Pericarppium arachidis hypogaeae powder；
Pericarppium arachidis hypogaeae powder, magnesium oxide, red mud and cobalt carbonate are added agitator, adds suitable quantity of water and stir into pastel；
Taking above-mentioned pastel and put into muffle furnace, at temperature is 600-800 DEG C, roasting 3-4h, obtains carbide；
After being mixed homogeneously with sodium carboxymethyl cellulose rubber cement and bituminous epoxy by carbide, the mixed material obtained is delivered to molding Machine, is 110-130 DEG C in temperature, and pressure is extruded under 60-80Mpa, obtains shaped fuel；
Shaped fuel is dried, is cooled to room temperature, packaging, obtain biomass molding fuel.
The method preparing efficient biomass shaped fuel the most according to claim 1, it is characterised in that: step is stirred described in (2) Mixing is stirring 20-30min under rotating speed is 300-500r/min.
The method preparing efficient biomass shaped fuel the most according to claim 1, it is characterised in that: step (3) described roasting The heating rate burnt is 5-10 DEG C/min.
The method preparing efficient biomass shaped fuel the most according to claim 1, it is characterised in that: described carboxymethyl cellulose The mass concentration of element sodium rubber cement is 15%.
The method preparing efficient biomass shaped fuel the most according to claim 1, it is characterised in that: step (5) described baking Dry be shaped fuel is dried at temperature is 60-80 DEG C to water content be 6-8%.
CN201610631409.2A 2016-08-04 2016-08-04 A kind of method preparing efficient biomass shaped fuel Pending CN106190400A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109385289A (en) * 2018-11-06 2019-02-26 中国科学院山西煤炭化学研究所 A method of using anthracite as main material production semicoke
CN109609231A (en) * 2018-10-24 2019-04-12 定远县碧蓝山新能源有限公司 A kind of moisture-proof biomass fuel of rush combustion

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102021059A (en) * 2010-12-10 2011-04-20 华北电力大学 Forming method for modifying biomass fuel by rapid thermal treatment process
CN102816621A (en) * 2012-09-19 2012-12-12 中国科学院广州能源研究所 Method for preparing briquette fuels by waste woods in furniture factory
CN104830397A (en) * 2015-05-21 2015-08-12 刘冬明 Compound high-temperature environment-friendly biomass fuel and preparation method thereof
CN105238480A (en) * 2015-10-17 2016-01-13 东至县兴农菌业有限责任公司 High efficiency biomass fuel and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102021059A (en) * 2010-12-10 2011-04-20 华北电力大学 Forming method for modifying biomass fuel by rapid thermal treatment process
CN102816621A (en) * 2012-09-19 2012-12-12 中国科学院广州能源研究所 Method for preparing briquette fuels by waste woods in furniture factory
CN104830397A (en) * 2015-05-21 2015-08-12 刘冬明 Compound high-temperature environment-friendly biomass fuel and preparation method thereof
CN105238480A (en) * 2015-10-17 2016-01-13 东至县兴农菌业有限责任公司 High efficiency biomass fuel and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109609231A (en) * 2018-10-24 2019-04-12 定远县碧蓝山新能源有限公司 A kind of moisture-proof biomass fuel of rush combustion
CN109385289A (en) * 2018-11-06 2019-02-26 中国科学院山西煤炭化学研究所 A method of using anthracite as main material production semicoke

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Application publication date: 20161207