CN108624375A - A kind of environmentally protective biomass granule fuel and preparation method thereof - Google Patents
A kind of environmentally protective biomass granule fuel and preparation method thereof Download PDFInfo
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- CN108624375A CN108624375A CN201810361672.3A CN201810361672A CN108624375A CN 108624375 A CN108624375 A CN 108624375A CN 201810361672 A CN201810361672 A CN 201810361672A CN 108624375 A CN108624375 A CN 108624375A
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- biomass granule
- granule fuel
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Classifications
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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
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- 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)
- 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 discloses a kind of environmentally protective biomass granule fuels, are made of the raw material of following parts by weight：5 10 parts of 60 65 parts of maize straw, 55 60 parts of rice straw, 15 20 parts of secondary stock, 57 parts of magnesia, 46 parts of sodium hydroxide, 35 parts of aluminium oxide, 46 parts of kaolin, 57 parts of ammonium sulfate, milk of lime or carbide slag；The invention also discloses the preparation methods of biomass granule fuel；The biomass granule fuel reduces the gas phase volatilization of alkali metal salt and chlorine, reaches raising ash fusion point, improves grey fusibleness, reduces dust stratification, slagging, while preventing combustion apparatus from corroding, and extends the effect of combustion apparatus service life, environmentally protective.
Description
Technical field
The present invention relates to biomass granule fuel preparation field more particularly to a kind of environmentally protective biological particles combustions
Material.
Background technology
Biomass solid formed fuel has many advantages, such as to be easy to transport and storage, easy to use, clean environment firendly, renewable,
The fossil energies such as alternative coal and oil reduce the dependence to non-renewable resources, ensure national energy security.China is agricultural
Big country has abundant straw resource, converts straw to biomass solid formed fuel to environmental protection, the utilization of resources and agriculture
People's extra earning is all of great advantage.
But the ash fusion point of the biomass solid formed fuel produced at present using stalk as raw material is low, leads to biomass solid
Easy slagging, easy dust stratification, burning are insufficient in combustion for shaped fuel, reduce fuel availability and efficiency of combustion；And
And flue gas heavy corrosion combustion apparatus caused by burning.By investigating biology in last decade foreign countries SCI and country's EI class documents
Matter boiler heating surface deposits and the research of corrosion, finds the excessively high alkali metal especially K of biomass itself and inorganic non-metallic member
The KCl that plain Cl is formed is the main reason for causing biomass boiler dust deposition to corrode.
Invention content
It is an object of the invention to overcome the defect of the prior art, a kind of environmentally protective biological particles combustion is provided
Material, aluminium oxide, kaolin and ammonium sulfate reduce the gas phase volatilization of alkali metal salt and chlorine, reach raising ash fusion point, improve grey fusibleness,
Dust stratification, slagging are reduced, while preventing combustion apparatus from corroding, extends the effect of combustion apparatus service life.
The invention is realized in this way：
It is an object of the present invention to provide a kind of environmentally protective biomass granule fuels, by the original of following parts by weight
Material composition：60-65 parts of maize straw, 55-60 parts of rice straw, 15-20 parts of secondary stock, 5-7 parts of magnesia, sodium hydroxide 4-6
5-10 parts of part, 3-5 parts of aluminium oxide, 4-6 parts of kaolin, 5-7 parts of ammonium sulfate, milk of lime or carbide slag.
The second object of the present invention is to provide a kind of preparation method of environmentally protective biomass granule fuel, including such as
Lower step：
Step 1, respectively by the maize straw of the number, rice straw after drying, crushing, mixing, compression moulding, after
It is continuous to carry out pyrolytic gasification reaction, it is ground into again after cooling powdered spare；
Step 2 grinds secondary stock, magnesia, aluminium oxide, kaolin, ammonium sulfate, milk of lime or carbide slag, and spraying is dry
It is dry to obtain additive powder；
Step 3, the biomass material mixing sprills of step 1 are added the solution containing 4-6 parts of sodium hydroxide pre-process after,
It is uniformly mixed with the additive powder of step 2, is sent into single lead screw ex truding briquetting machine, extrusion forming is cylindrical particle, dry, discharging.
Compared with prior art, the invention has the advantages that and effect：
1, stalk pretreatment efficiency can effectively be improved using NaOH pretreatment at normal temperatures in the present invention, reduced
Cost：Due to the natural anti-degrading texture characteristic of lignocellulosic, cell wall complex cross-linked state institute is broken by oxygenation pretreatment
Caused by obstacle；
2, the compound adhesive formed using secondary stock and magnesia in the present invention, improves the machinery of biomass granule fuel
Intensity：In biomass room temperature (cold pressing) forming process, adding the characteristics of ideal adhesive should have has：It can homogeneous immersion life
Material grains surface, and there is good cohesiveness；Lower inorganic constituents content；High-wearing feature and thermal stability；With one
Fixed moisture-proof, damp proof effect；Raw material sources are extensive, environmental-friendly, and cheap and easy to get.The above feature produces performance in order to balance
More excellent biomass solidified fuel, the present invention gropes to obtain by many experiments to be answered using what secondary stock and magnesia formed
Adhesive is closed, the mechanical strength of biomass granule fuel is improved, the raising of mechanical strength is being produced, transported to biomass granule fuel
Have in terms of defeated, storage and its important role, not only reduces abrasion of the material particles to former, and for fuel
Processing performance and plant capacity loss make moderate progress；
3, in the present invention aluminium oxide, kaolin and ammonium sulfate in combustion with the alkali metal salts such as potassium, sodium in straw
Chemical reaction occurs with chloride and generates dystectic substance, reduces the gas phase volatilization of alkali metal salt and chlorine, it is molten to reach raising ash
Point improves grey fusibleness, reduces dust stratification, slagging, while preventing combustion apparatus from corroding, extends the effect of combustion apparatus service life；
Meanwhile aluminium oxide can inhibit CaSO under the high temperature conditions as catalyst4Decomposition, while high heat stability can be formed
CaSO4, CaO and Al2O3Double salt, and this product covering or package CaSO4Plane of crystal inhibits CaSO4Decomposition；
4, the present invention is nearly free from sulfur dioxide and flying dust, is produced using milk of lime or carbide slag as sulphur-fixing agent
The biomass granule fuel caking ability gone out is good, and fuel value is high, and Air-pollution From Combustion is small, is conducive to the construction of ecological environment.
Specific implementation mode
The preparation of 1 biomass granule fuel of embodiment
A kind of environmentally protective biomass granule fuel, is made of the raw material of following parts by weight：60 parts of maize straw, water
55 parts of rice straw, 15 parts of secondary stock, 5 parts of magnesia, 4 parts of sodium hydroxide, 3 parts of aluminium oxide, 4 parts of kaolin, 5 parts of ammonium sulfate, stone
5 parts of grey breast or carbide slag.
The preparation method of the biomass fuel pellet, includes the following steps：
Step 1, respectively by the maize straw of the number, rice straw after drying, crushing, mixing, compression moulding, after
It is continuous to carry out pyrolytic gasification reaction, it is ground into again powdered spare after cooling, drying temperature is 90~120 DEG C；
Secondary stock, magnesia, aluminium oxide, kaolin, ammonium sulfate, milk of lime or carbide slag are ground 30- by step 2
40min, spray drying obtain additive powder；
Step 3, the biomass material mixing sprills of step 1 are added the solution containing 4-6 parts of sodium hydroxide pre-process after,
It is uniformly mixed with the additive powder of step 2, is sent into single lead screw ex truding briquetting machine, a diameter of 6- is squeezed into the briquetting pressure of 12MPa
8mm, length is the cylindrical particle of 10-18cm, dry, discharging.
Embodiment 2：The preparation of biomass granule fuel
A kind of environmentally protective biomass granule fuel, is made of the raw material of following parts by weight：65 parts of maize straw, water
60 parts of rice straw, 20 parts of secondary stock, 7 parts of magnesia, 6 parts of sodium hydroxide, 5 parts of aluminium oxide, 6 parts of kaolin, 7 parts of ammonium sulfate, stone
10 parts of grey breast or carbide slag.
The preparation method of the biomass fuel pellet, includes the following steps：
Step 1, respectively by the maize straw of the number, rice straw after drying, crushing, mixing, compression moulding, after
It is continuous to carry out pyrolytic gasification reaction, it is ground into again powdered spare after cooling, drying temperature is 90~120 DEG C；
Secondary stock, magnesia, aluminium oxide, kaolin, ammonium sulfate, milk of lime or carbide slag are ground 30- by step 2
40min, spray drying obtain additive powder；
Step 3, the biomass material mixing sprills of step 1 are added the solution containing 4-6 parts of sodium hydroxide pre-process after,
It is uniformly mixed with the additive powder of step 2, is sent into single lead screw ex truding briquetting machine, a diameter of 6- is squeezed into the briquetting pressure of 12MPa
8mm, length is the cylindrical particle of 10-18cm, dry, discharging.
Embodiment 3：The preparation of biomass granule fuel
A kind of environmentally protective biomass granule fuel, is made of the raw material of following parts by weight：62 parts of maize straw, water
58 parts of rice straw, 18 parts of secondary stock, 6 parts of magnesia, 5 parts of sodium hydroxide, 4 parts of aluminium oxide, 5 parts of kaolin, 6 parts of ammonium sulfate, stone
8 parts of grey breast or carbide slag.
The preparation method of the biomass fuel pellet, includes the following steps：
Step 1, respectively by the maize straw of the number, rice straw after drying, crushing, mixing, compression moulding, after
It is continuous to carry out pyrolytic gasification reaction, it is ground into again powdered spare after cooling, drying temperature is 90~120 DEG C；
Secondary stock, magnesia, aluminium oxide, kaolin, ammonium sulfate, milk of lime or carbide slag are ground 30- by step 2
40min, spray drying obtain additive powder；
Step 3, the biomass material mixing sprills of step 1 are added the solution containing 4-6 parts of sodium hydroxide pre-process after,
It is uniformly mixed with the additive powder of step 2, is sent into single lead screw ex truding briquetting machine, a diameter of 6- is squeezed into the briquetting pressure of 12MPa
8mm, length is the cylindrical particle of 10-18cm, dry, discharging.
Experimental example
By the biomass fuel pellet obtained by the embodiment 1-3, fuel ash is detected after burning, the ash measured
Divide such as following table, and discharge capacity, the discharge capacity of methane gas, the discharge capacity of nitrogen oxide and the sulfur-containing oxide of HPLC detection carbon monoxide
Discharge capacity, as a result as shown in table 1 below.
Table 1
Experiment shows that biomass fuel pellet caking ability produced by the invention is good, and fuel value is high, and Air-pollution From Combustion is small, is conducive to
The construction of ecological environment.
It is described be only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all include within protection scope of the present invention.
Claims (6)
1. a kind of environmentally protective biomass granule fuel, which is characterized in that be made of the raw material of following parts by weight：Corn stalk
60-65 parts of stalk, 55-60 parts of rice straw, 15-20 parts of secondary stock, 5-7 parts of magnesia, 4-6 parts of sodium hydroxide, aluminium oxide 3-5
Part, 4-6 parts of kaolin, 5-7 parts of ammonium sulfate, milk of lime or 5-10 parts of carbide slag.
2. a kind of preparation method for the biomass granule fuel that caking ability described in claim 1 is high, which is characterized in that including with
Lower step：
Step 1, respectively by the maize straw of number described in claim 1, rice straw through drying, crushing, mixing, compression moulding
Afterwards, continue pyrolytic gasification reaction, be ground into again after cooling powdered spare；
Step 2 grinds secondary stock, magnesia, aluminium oxide, kaolin, ammonium sulfate, milk of lime or carbide slag, is spray-dried
To additive powder；
Step 3, the biomass material mixing sprills of step 1 are added the solution containing 4-6 parts of sodium hydroxide pre-process after, with step
Rapid 2 additive powder is uniformly mixed, and is sent into single lead screw ex truding briquetting machine, and extrusion forming is cylindrical particle, dry, discharging.
3. the preparation method of the high biomass granule fuel of caking ability according to claim 2, which is characterized in that the step
Drying temperature in rapid 1 is 90~120 DEG C.
4. the preparation method of the high biomass granule fuel of caking ability according to claim 2, which is characterized in that the step
The grain size of the additive powder obtained after being sufficiently mixed in rapid 2 is 50-100 mesh.
5. the preparation method of the high biomass granule fuel of caking ability according to claim 2, which is characterized in that the step
Contoured squeeze power in rapid 3 is 10MPa-14MPa.
6. the preparation method of the high biomass granule fuel of caking ability according to claim 2, which is characterized in that the step
A diameter of 6-8mm of the cylindrical particle obtained in rapid 3, length 10-18cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810361672.3A CN108624375A (en) | 2018-04-20 | 2018-04-20 | A kind of environmentally protective biomass granule fuel and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810361672.3A CN108624375A (en) | 2018-04-20 | 2018-04-20 | A kind of environmentally protective biomass granule fuel and preparation method thereof |
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| CN108624375A true CN108624375A (en) | 2018-10-09 |
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Citations (7)
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|---|---|---|---|---|
| CN104479790A (en) * | 2014-11-27 | 2015-04-01 | 广东电网有限责任公司电力科学研究院 | Compound additive for inhibiting alkali metals from being transferred to gaseous phase in biomass combustion process and preparation method and application |
| CN105400569A (en) * | 2015-12-22 | 2016-03-16 | 华中科技大学 | Modified additive for inhibiting releasing of alkali metals during process of coal burning and preparation method thereof |
| CN106118789A (en) * | 2016-08-04 | 2016-11-16 | 广西南宁胜祺安科技开发有限公司 | A kind of method utilizing sisal dregs to prepare biomass molding fuel |
| CN106118785A (en) * | 2016-06-23 | 2016-11-16 | 张庆春 | A kind of combustion-supporting type biomass molding fuel of high security |
| CN106675657A (en) * | 2016-12-07 | 2017-05-17 | 西北大学 | Method for regulating and controlling flowing temperature of high-melting-point coal ash |
| CN106753663A (en) * | 2016-11-23 | 2017-05-31 | 怀宁县鑫茂源生物质颗粒燃料有限公司 | A kind of caking ability biomass fuel pellet high |
| CN107099356A (en) * | 2017-06-09 | 2017-08-29 | 太原理工大学 | Improve alumina composite additive and preparation method and the application of domestic coke ash fusion point |
-
2018
- 2018-04-20 CN CN201810361672.3A patent/CN108624375A/en active Pending
Patent Citations (7)
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|---|---|---|---|---|
| CN104479790A (en) * | 2014-11-27 | 2015-04-01 | 广东电网有限责任公司电力科学研究院 | Compound additive for inhibiting alkali metals from being transferred to gaseous phase in biomass combustion process and preparation method and application |
| CN105400569A (en) * | 2015-12-22 | 2016-03-16 | 华中科技大学 | Modified additive for inhibiting releasing of alkali metals during process of coal burning and preparation method thereof |
| CN106118785A (en) * | 2016-06-23 | 2016-11-16 | 张庆春 | A kind of combustion-supporting type biomass molding fuel of high security |
| CN106118789A (en) * | 2016-08-04 | 2016-11-16 | 广西南宁胜祺安科技开发有限公司 | A kind of method utilizing sisal dregs to prepare biomass molding fuel |
| CN106753663A (en) * | 2016-11-23 | 2017-05-31 | 怀宁县鑫茂源生物质颗粒燃料有限公司 | A kind of caking ability biomass fuel pellet high |
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Non-Patent Citations (1)
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Application publication date: 20181009 |