CN110923033A - Biomass briquette fuel and preparation method thereof - Google Patents

Biomass briquette fuel and preparation method thereof Download PDF

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Publication number
CN110923033A
CN110923033A CN201910743358.6A CN201910743358A CN110923033A CN 110923033 A CN110923033 A CN 110923033A CN 201910743358 A CN201910743358 A CN 201910743358A CN 110923033 A CN110923033 A CN 110923033A
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parts
biomass briquette
briquette fuel
particle size
average particle
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代现锋
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Henan Teng Teng Boxing Environmental Protection Technology Co Ltd
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Henan Teng Teng Boxing Environmental Protection Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS 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
    • C10L5/00Solid fuels
    • C10L5/40Solid fuels essentially based on materials of non-mineral origin
    • C10L5/44Solid fuels essentially based on materials of non-mineral origin on vegetable substances
    • C10L5/445Agricultural waste, e.g. corn crops, grass clippings, nut shells or oil pressing residues
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS 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
    • C10L2230/00Function and purpose of a components of a fuel or the composition as a whole
    • C10L2230/22Function and purpose of a components of a fuel or the composition as a whole for improving fuel economy or fuel efficiency
    • 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

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

Abstract

The invention provides a biomass briquette fuel and a preparation method thereof, belonging to the technical field of energy fuels. The biomass briquette fuel provided by the invention is prepared from the following raw materials in parts by mass: 100 parts of forest waste particles, 20-35 parts of rice hull powder, 20-30 parts of cotton stalk broken particles, 25-45 parts of coal powder, 10-15 parts of diatomite, 8-15 parts of coal tar, 2-4 parts of sodium carboxymethylcellulose and 1-3 parts of a sulfur fixing agent. The biomass briquette fuel obtained by the components and the proportion not only can be fully combusted, but also has a high combustion heat value of 5150-5236 Kcal/kg, and does not generate sulfur dioxide gas and fly ash.

Description

Biomass briquette fuel and preparation method thereof
Technical Field
The invention relates to the technical field of energy fuels, in particular to a biomass briquette fuel and a preparation method thereof.
Background
With the continuous development of global economy, the demand of human beings on energy is continuously increased, and resources such as petroleum, natural gas, coal and the like are continuously reduced. Therefore, the search for new renewable energy sources is a problem to be solved urgently.
China is a big agricultural country, and biomass resources such as straws, cottonseed hulls, rice hull powder, forest waste particles and the like are extremely rich, so that the development of biomass fuel taking the biomass resources as raw materials can fully utilize the wastes and relieve the energy crisis. The energy density of the agricultural wastes is low, the transportation cost is high, and the long-distance transportation of biomass resources is limited. And carry out solidification moulding with biomass resources and handle, form regular cubic or granular fuel, not only can reduce the fuel volume, promote energy density, can also be convenient for simultaneously save and transport, but the closely knit degree of shaping back raw materials increases, can bring the problem that the burning is insufficient, easily produces the flame at black edge in the combustion process again.
Disclosure of Invention
The biomass briquette fuel provided by the invention can be fully combusted, has small pollution generated by combustion and simultaneously has a higher combustion heat value.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a biomass briquette fuel which is prepared from the following raw materials in parts by mass:
Figure BDA0002164747760000011
Figure BDA0002164747760000021
preferably, the average particle size of the forest waste particles is 0.1-1 mm.
Preferably, the water content of the forest waste particles is less than or equal to 12 wt.%.
Preferably, the particle size of the rice hull powder is 0.5-2 mm; the water content of the rice hull powder is less than or equal to 10 wt.%.
Preferably, the average particle size of the cotton stalk crushed particles is 0.5-6 mm; the water content of the cotton stalk crushing particles is less than or equal to 15 wt.%.
Preferably, the average particle size of the pulverized coal is 0.1-1.5 mm.
Preferably, the average particle size of the diatomite is 0.1-2 mm.
Preferably, the sulfur fixing agent is at least one of calcium carbonate and quicklime.
Preferably, the average particle size of the sulfur fixing agent is 0.1-1 mm.
The invention also provides a preparation method of the biomass briquette fuel in the technical scheme, which comprises the following steps:
the biomass briquette fuel is prepared by mixing forest waste particles, rice hull powder, cotton stalk crushed particles, coal powder, diatomite, coal tar, sodium carboxymethylcellulose and a sulfur fixing agent, and then performing compression molding.
The invention provides a biomass briquette fuel which is prepared from the following raw materials in parts by mass: 100 parts of forest waste particles, 20-35 parts of rice hull powder, 20-30 parts of cotton stalk broken particles, 25-45 parts of coal powder, 10-15 parts of diatomite, 8-15 parts of coal tar, 2-4 parts of sodium carboxymethylcellulose and 1-3 parts of a sulfur fixing agent. The invention takes forest waste particles, rice hull powder, cotton stalk crushed particles and coal powder as main raw materials, the cotton stalk crushed particles are hard in texture and have a certain supporting effect in the biomass briquette fuel, so that certain gaps are reserved in the biomass briquette fuel to increase the contact area of air and the fuel and enable the biomass fuel to be combusted more fully; the rice hull powder can enable the biomass briquette fuel to have certain looseness in the biomass briquette fuel, and can be combined with cotton stalk crushing particles, so that the contact area of air and fuel in the combustion process can be further increased, and meanwhile, the combination of the rice hull powder and the cotton stalk crushing particles can also reduce the emission of submicron particles; the addition of the coal powder can effectively improve the combustion heat value of the biomass briquette; according to the invention, diatomite, coal tar, sodium carboxymethylcellulose and a sulfur fixing agent are used as additives, wherein the diatomite is combined with the sodium carboxymethylcellulose, so that the discharge of inhalable particles can be reduced, and fly ash can be reduced; the sulfur fixing agent can greatly reduce the emission of sulfur dioxide and reduce environmental pollution. In addition, the biomass briquette fuel prepared by the above proportion not only can be fully combusted, but also has a high combustion heat value of 5150-5236 Kcal/kg, and does not generate sulfur dioxide gas and fly ash.
Detailed Description
The invention provides a biomass briquette fuel which is prepared from the following raw materials in parts by mass:
Figure BDA0002164747760000031
the biomass briquette fuel provided by the invention comprises 100 parts of forest waste particles; the average particle size of the forest waste particles is preferably 0.1-1 mm, and more preferably 0.2-0.5 mm; the water content of the forest waste particles is preferably less than or equal to 12 wt.%. The source of the forest waste particles is not specially limited, and any waste generated in the wood processing process can be used, such as sawdust and wood chips; the invention has no special limitation on the types of the forest waste particles, and any types of waste generated by wood can be used, such as pine, camphor wood, elm and the like; when the particle size of the forest waste particles does not meet the requirement, the forest waste particles are preferably crushed and then used. In the invention, the forest waste particles with the particle size and the water content are beneficial to further fully burning the obtained biomass briquette fuel.
According to the biomass briquette fuel, the mass parts of forest waste particles are taken as the standard, and the biomass briquette fuel comprises 20-35 parts of rice hull powder, preferably 25-30 parts; the water content of the rice hull powder is preferably less than or equal to 10 wt.%; the grain size of the rice hull powder (i.e. the longest length passing through the center of the rice hull powder) is preferably 0.5-2 mm, and more preferably 1-1.5 mm. According to the invention, the rice hull powder has a certain bending radian, so that the biomass briquette fuel has a certain looseness in the biomass briquette fuel, and can be combined with cotton stalk crushed particles, the contact area between air and the fuel in a combustion process can be further increased, and meanwhile, the content of alkali metal in the cotton stalk crushed particles can be reduced due to the mixing of the rice hull powder and the cotton stalk crushed particles, so that the conversion rate of the alkali metal to particles is reduced, and the emission of submicron particles is reduced.
In the invention, the biomass briquette fuel provided by the invention comprises 20-30 parts, preferably 23-28 parts of broken cotton stalk particles by mass based on the mass parts of forest waste particles; the average particle size (i.e., the longest length passing through the center of the crushed cotton stalk particles) of the crushed cotton stalk particles is preferably 0.5-6 mm, and more preferably 2-4 mm; the water content of the cotton stalk crushed particles is preferably less than or equal to 15 wt.%. In the invention, the cotton stalk crushed particles have a certain supporting function, so that a certain gap is reserved in the biomass briquette fuel to improve the contact area between air and the fuel, and the biomass fuel is more fully combusted; the preferred average particle diameter described above is advantageous for further increasing the contact area between the air and the fuel.
According to the biomass briquette fuel, the mass parts of forest waste particles are taken as the standard, the biomass briquette fuel provided by the invention comprises 25-45 parts of coal powder, and preferably 30-35 parts of coal powder; the average particle size of the pulverized coal is preferably 0.1-1.5 mm, and more preferably 0.5-1 mm. In the invention, the pulverized coal is beneficial to improving the combustion heat value of the biomass briquette.
According to the biomass briquette fuel, by taking the mass parts of forest waste particles as a standard, the biomass briquette fuel provided by the invention comprises 10-15 parts of diatomite, preferably 12-13 parts; the average particle size of the diatomite is preferably 0.1-2 mm, and more preferably 0.5-1.5 mm. In the invention, the diatomite has stronger adsorption performance and can adsorb alkali metal in the biomass briquette fuel, thereby reducing the emission of particulate matters in the combustion process.
In the invention, the biomass briquette fuel provided by the invention comprises 8-15 parts of coal tar, preferably 10-13 parts by mass based on the mass parts of forest waste particles. In the invention, the coal tar and the sodium carboxymethyl cellulose are used as the binder together, and the coal tar can also improve the combustion heat value of the biomass briquette.
According to the biomass briquette fuel, the mass parts of forest waste particles are taken as the standard, and the biomass briquette fuel provided by the invention comprises 2-4 parts of sodium carboxymethyl cellulose. In the invention, the sodium carboxymethyl cellulose and the coal tar are jointly used as the binder, which is beneficial to the forming of the biomass briquette fuel, and the sodium carboxymethyl cellulose contains carbon, hydrogen and oxygen, which has combustion performance, and the combustion heat value of the biomass briquette fuel cannot be reduced by adding the sodium carboxymethyl cellulose.
According to the biomass briquette fuel, the mass parts of forest waste particles are taken as the standard, and the biomass briquette fuel comprises 1-3 parts of sulfur fixing agent; the sulfur fixing agent is preferably at least one of calcium carbonate and quicklime; the average particle size of the sulfur fixing agent is preferably 0.1-1 mm.
The invention also provides a preparation method of the biomass briquette fuel, which comprises the following steps:
the biomass briquette fuel is prepared by mixing forest waste particles, rice hull powder, cotton stalk crushed particles, coal powder, diatomite, coal tar, sodium carboxymethylcellulose and a sulfur fixing agent, and then performing compression molding.
The following will explain a biomass briquette and a method for preparing the same in detail with reference to the examples, but they should not be construed as limiting the scope of the invention.
Example 1
The biomass briquette fuel is prepared by mixing the following components in parts by weight and then performing compression molding:
100 parts of forest waste particles with the average particle size of 1mm and the water content of 12 wt.%, 20 parts of rice hull powder with the average particle size of 2mm and the water content of 10 wt.%, 30 parts of cotton stalk crushed particles with the average particle size of 6mm and the water content of 10 wt.%, 25 parts of coal powder with the average particle size of 1mm, 15 parts of diatomite with the average particle size of 2mm and 15 parts of coal tar; 2 parts of sodium carboxymethylcellulose and 3 parts of calcium carbonate with the average particle size of 1 mm.
Example 2
The biomass briquette fuel is prepared by mixing the following components in parts by weight and then performing compression molding:
100 parts of forest waste particles with the average particle size of 1mm and the water content of 12 wt.%, 25 parts of rice hull powder with the average particle size of 2mm and the water content of 10 wt.%, 25 parts of cotton stalk crushed particles with the average particle size of 4mm and the water content of 8 wt.%, 30 parts of coal powder with the average particle size of 1.5mm, 12 parts of diatomite with the average particle size of 1mm and 10 parts of coal tar; 4 parts of sodium carboxymethylcellulose and 1 part of calcium carbonate with the average particle size of 0.5 mm.
Example 3
The biomass briquette fuel is prepared by mixing the following components in parts by weight and then performing compression molding:
100 parts of forest waste particles with the average particle size of 0.2mm and the water content of 10 wt.%, 25 parts of rice hull powder with the average particle size of 1mm and the water content of 10 wt.%, 23 parts of cotton stalk crushed particles with the average particle size of 4mm and the water content of 10 wt.%, 30 parts of coal powder with the average particle size of 0.5mm, 12 parts of diatomite with the average particle size of 0.5mm and 10 parts of coal tar; 3 parts of sodium carboxymethylcellulose and 2 parts of calcium carbonate with the average particle size of 0.5 mm.
Example 4
The biomass briquette fuel is prepared by mixing the following components in parts by weight and then performing compression molding:
100 parts of forest waste particles with the average particle size of 0.5mm and the water content of 12 wt.%, 25 parts of rice hull powder with the average particle size of 1.5mm and the water content of 10 wt.%, 28 parts of cotton stalk crushed particles with the average particle size of 2mm and the water content of 8 wt.%, 35 parts of coal powder with the average particle size of 10mm, 13 parts of diatomite with the average particle size of 1.5mm and 13 parts of coal tar; 2 parts of sodium carboxymethylcellulose and 1 part of calcium carbonate with the average particle size of 1 mm.
Example 5
The biomass briquette fuel is prepared by mixing the following components in parts by weight and then performing compression molding:
100 parts of forest waste particles with the average particle size of 0.1mm and the water content of 12 wt.%, 35 parts of rice hull powder with the average particle size of 0.5mm and the water content of 10 wt.%, 20 parts of cotton stalk crushed particles with the average particle size of 1mm and the water content of 10 wt.%, 45 parts of coal powder with the average particle size of 0.5mm, 12 parts of diatomite with the average particle size of 1mm and 10 parts of coal tar; 4 parts of sodium carboxymethylcellulose and 1 part of calcium carbonate with the average particle size of 0.5 mm.
Comparative example 1
A biomass briquette fuel was prepared according to the method of example 1, except that no cotton stalk crumble was added.
Comparative example 2
A biomass briquette fuel was prepared according to the method of example 1, except that no rice hull powder was added.
Through a combustion test, the combustion heat values of the biomass briquette fuels obtained in examples 1 to 5 and comparative examples 1 to 2 were detected, and the results are shown in table 1.
TABLE 1 Heat value of Combustion of Biomass briquette fuels obtained in examples 1 to 5 and comparative examples 1 to 2
Figure BDA0002164747760000061
As shown in Table 1, the biomass briquette fuel provided by the invention has a combustion heat value of 5150-5236 Kcal/kg and a high combustion heat value, and meanwhile, as shown in Table 1, due to the addition of the cotton stalk crushed particles and the rice hull powder, the combustion heat value of the biomass briquette fuel is improved to a certain extent. In addition, the combustion process is observed, the biomass briquette fuel of the comparative examples 1-2 generates black edge flame in the combustion process, and fly ash appears, while the biomass briquette fuel obtained in the examples 1-5 does not generate black edge flame in the combustion process, no obvious fly ash appears, and sulfur dioxide emission is not detected at the same time.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The biomass briquette fuel is characterized by being prepared from the following raw materials in parts by mass:
Figure FDA0002164747750000011
2. the biomass briquette fuel according to claim 1, wherein the forest waste particles have an average particle size of 0.1-1 mm.
3. The biomass briquette fuel according to claim 1 or 2, characterized in that the water content of the wood waste particles is less than or equal to 12 wt.%.
4. The biomass briquette fuel according to claim 1, wherein the rice hull powder has a particle size of 0.5 to 2 mm; the water content of the rice hull powder is less than or equal to 10 wt.%.
5. The biomass briquette fuel according to claim 1, wherein the average particle size of the crushed cotton stalk particles is 0.5-6 mm; the water content of the cotton stalk crushing particles is less than or equal to 15 wt.%.
6. The biomass briquette fuel according to claim 1, wherein the pulverized coal has an average particle size of 0.1 to 1.5 mm.
7. The biomass briquette fuel according to claim 1, wherein the diatomaceous earth has an average particle size of 0.1 to 2 mm.
8. The biomass briquette fuel of claim 1, wherein the sulfur fixing agent is at least one of calcium carbonate and quicklime.
9. The biomass briquette fuel according to claim 1 or 8, wherein the sulfur fixing agent has an average particle size of 0.1 to 1 mm.
10. The preparation method of the biomass briquette fuel as set forth in any one of claims 1 to 9, characterized by comprising the steps of:
the biomass briquette fuel is prepared by mixing forest waste particles, rice hull powder, cotton stalk crushed particles, coal powder, diatomite, coal tar, sodium carboxymethylcellulose and a sulfur fixing agent, and then performing compression molding.
CN201910743358.6A 2019-08-13 2019-08-13 Biomass briquette fuel and preparation method thereof Pending CN110923033A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103937574A (en) * 2014-02-26 2014-07-23 泗洪新创源木业有限公司 Biomass granular fuel
CN104513684A (en) * 2013-10-07 2015-04-15 王凯 Combustion-supporting agent for coal
DE202015105001U1 (en) * 2015-09-21 2016-12-23 Entrade Energiesysteme Ag Fuel mixture of carbonaceous feedstocks for fixed bed gasifier to produce a product gas
CN106281556A (en) * 2016-08-30 2017-01-04 广西塔锡科技有限公司 A kind of biomass fuel of energy-conserving and environment-protective
CN107446651A (en) * 2017-09-19 2017-12-08 芜湖聚焰生物质能源科技有限公司 A kind of preparation method of peanut hull biologic matter fuel
CN108865314A (en) * 2018-06-27 2018-11-23 安徽省建辉生物质能发展有限公司 A kind of resistance to burning biomass particle of novel environment friendly and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104513684A (en) * 2013-10-07 2015-04-15 王凯 Combustion-supporting agent for coal
CN103937574A (en) * 2014-02-26 2014-07-23 泗洪新创源木业有限公司 Biomass granular fuel
DE202015105001U1 (en) * 2015-09-21 2016-12-23 Entrade Energiesysteme Ag Fuel mixture of carbonaceous feedstocks for fixed bed gasifier to produce a product gas
CN106281556A (en) * 2016-08-30 2017-01-04 广西塔锡科技有限公司 A kind of biomass fuel of energy-conserving and environment-protective
CN107446651A (en) * 2017-09-19 2017-12-08 芜湖聚焰生物质能源科技有限公司 A kind of preparation method of peanut hull biologic matter fuel
CN108865314A (en) * 2018-06-27 2018-11-23 安徽省建辉生物质能发展有限公司 A kind of resistance to burning biomass particle of novel environment friendly and preparation method thereof

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