CN109490180A - A kind of method of biomass energy and detection biomass energy to corrosion of superheater degree - Google Patents
A kind of method of biomass energy and detection biomass energy to corrosion of superheater degree Download PDFInfo
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- CN109490180A CN109490180A CN201811209112.2A CN201811209112A CN109490180A CN 109490180 A CN109490180 A CN 109490180A CN 201811209112 A CN201811209112 A CN 201811209112A CN 109490180 A CN109490180 A CN 109490180A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
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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
- C10L5/02—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
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
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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
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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
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The present invention proposes a kind of biomass energy and detection biomass energy to the method for corrosion of superheater degree, biological material and catalytic material are mixed and burned by the present invention, on the one hand achieve the purpose that dilute alkali metal and content of Cl element, mitigate dust stratification, slagging and rotten candle problem, on the other hand, combustion position can be improved by the interaction between biomass and coal, efficiency of combustion is improved, guarantees the safety economy stable operation of boiler.The present invention is that raw material carries out mixing burning using biomass and coal, the degree for reducing corrosion of superheater is probed by different Blend proportions, in addition the present invention detects biomass energy to corrosion of superheater degree by providing a kind of detection method, to guarantee the safety economy stable operation of boiler.
Description
Technical field
The present invention relates to bioenergy technical fields, especially design a kind of biomass energy and detection biomass energy to mistake
The method of hot device degree of corrosion.
Background technique
Biomass energy has vast potential for future development as a kind of clean reproducible energy.A kind of Land use systems of biomass
It is exactly direct burning, many countries development and production go out using biomass as the large-scale fluidized bed boiler of fuel, the burning side now
Formula is high-efficient, it can be achieved that extensive efficiently utilize biomass.But there is also some problems for biomass combustion, due to biomass
In higher alkali metal (K, Na) content, reduce the molten point of alkali metal salt, cause boiler heating surface
Dust stratification, knot Bian Wenti；In addition, higher chlorinity in biomass most serious of all, makes it together with alkali metal salt to boiler
Heating surface causes high temperature corrosion, to seriously affect the safe and economic operation of boiler.
Summary of the invention
It is an object of the invention to propose the lesser biomass energy of a kind of pair of corrosion of superheater degree and detection biomass energy
Method of the source to corrosion of superheater degree.
In order to achieve the above objectives, the present invention proposes a kind of biomass energy, including biological material and coal material；The life
Material is mixed with the coal material.
Preferably, the biological material and the coal material are mixed according to the ratio of 1-10:1-10.
Preferably, the biological material is any one or more in straw, corn stover and bark；The coal material
Material is any one or more in bituminous coal, anthracite and lignite.
The present invention also proposes a kind of detection biomass energy to the method for corrosion of superheater degree, comprising the following steps:
Step 1: biological material and coal material being subjected to pulverization process, to obtain powdered biomass and coal dust；
Step 2: the powdered biomass and the coal dust are dried；
Step 3: the powdered biomass and the coal dust being mixed according to a certain percentage, obtain mixed-powder；
Step 4: polishing cleaning treatment is carried out to tubing sheet metal surface；
Step 5: the mixed-powder is uniformly applied to tubing sheet metal surface；
Step 6: heating tube furnace, while being passed through mixed gas；
Step 7: the tubing sheet metal being placed in the tube furnace, heated at constant temperature is for a period of time；
Step 8: taking out the tubing sheet metal every one end time, measure its mass change.
In the present embodiment, in step 1, it carries out the biological material and coal material to be crushed to 60-100 mesh.
In the present embodiment, in step 2, the powdered biomass and the coal dust are dry in the environment of 75-105 DEG C
1-2h。
In the present embodiment, in step 3, powdered biomass and the coal dust are mixed according to the ratio of 1-10:1-10
It closes.
In the present embodiment, in step 6, the heating rate of tube furnace is 20-30 DEG C/min, and mixed gas is oxygen,
The mixed gas of carbon dioxide, nitrogen and hydrogen chloride；The flow rate of the mixed gas is 1-2L/min.
In the present embodiment, in step 7, heated at constant temperature 30-48h in the environment of 700-900 DEG C.
In the present embodiment, in step 8, the tubing sheet metal is taken out every 6h, measures its mass change.
Compared with prior art, of the invention to be advantageous in that: the present invention mixes biological material and catalytic material
On the one hand combination burning achievees the purpose that dilute alkali metal and content of Cl element, mitigation dust stratification, slagging and rotten candle problem, another party
Face can improve combustion position by the interaction between biomass and coal, improve efficiency of combustion, guarantee the safety of boiler
Economic stability operation.The present invention is that raw material carries out mixing burning using biomass and coal, and reduction overheat is probed by different Blend proportions
The degree of device corrosion, in addition the present invention detects biomass energy by providing a kind of detection method to corrosion of superheater degree, from
And guarantee the safety economy stable operation of boiler.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be made below into
Illustrate to one step.
The present invention proposes a kind of biomass energy, including biological material and coal material；Biological material and coal material are mixed
It closes.
In the present embodiment, biological material and coal material are mixed according to the ratio of 1-10:1-10.
In the present embodiment, biological material is any one or more in straw, corn stover and bark；Coal material
For any one or more in bituminous coal, anthracite and lignite.
The present invention also proposes a kind of detection biomass energy to the method for corrosion of superheater degree, comprising the following steps:
Step 1: biological material and coal material being subjected to pulverization process, 60-100 mesh is crushed to, to obtain biomass powder
End and coal dust；Be conducive to fuel by the response area that milled processed can increase fuel sufficiently to react；
Step 2: powdered biomass and coal dust dry 1-2h in the environment of 75-105 DEG C；Moisture therein is removed, is reduced
The humidity of fuel reduces influence of the subsequent pyrolytic process China and foreign countries water to experimental result
Step 3: powdered biomass and coal dust being mixed according to the ratio of 1-10:1-10, obtain mixed-powder；
Step 4: polishing cleaning treatment is carried out to tubing sheet metal surface；
Step 5: mixed-powder is uniformly applied to tubing sheet metal surface；
Step 6: the heating rate of heating tube furnace, tube furnace is 20-30 DEG C/min, while being passed through oxygen, carbon dioxide,
The mixed gas of nitrogen and hydrogen chloride；The flow rate of mixed gas is 1-2L/min.
Step 7: tubing sheet metal being placed in tube furnace, heated at constant temperature 30-48h in the environment of 700-900 DEG C；
Step 8: taking out tubing sheet metal every 6h, measure its mass change, extent of corrosion is measured using weightening finish method.
In the present embodiment, tubing sheet metal is T91, TP347H, 12CrMoVG.
To keep technical effect of the invention clearer, will be solved below by the way that specific embodiment is further to the present invention
Release explanation:
Embodiment 1:
Straw ash is mixed with quasi- eastern coal ash according to 1:0 ratio, suspension is made using dehydrated alcohol and is uniformly applied to T91
Reactor is warming up to 700 DEG C of holding constant temperature by sheet metal surface, and be passed through simulated flue gas (6% O2,12% CO2,
HCl, the balanced gas N2 of 500ppm), the T91 for applying ash is put into reactor after steady air current, is measured using weightening finish method rotten
Degree of corrosion weighs weight every 6h, and when corrosion experiment is 48 hours a length of.Set up Duplicate Samples.To the surrosion amount of test button
The data that change with time carry out quantitative analysis, parabolically formal definition its fitting equation Δ G=k τ1/2, Δ G is the moment
Surrosion amount；K is parabolical coefficient, characterizes corrosion rate.Obtaining pure straw corrosion rate is K0=0.8674.
Embodiment 2:
Straw ash is mixed with quasi- eastern coal ash according to 1:3 ratio, suspension is made using dehydrated alcohol and is uniformly applied to T91
Reactor is warming up to 700 DEG C of holding constant temperature by sheet metal surface, and be passed through simulated flue gas (6% O2,12% CO2,
HCl, the balanced gas N2 of 500ppm), the T91 for applying ash is put into reactor after steady air current, is measured using weightening finish method rotten
Degree of corrosion weighs weight every 6h, and when corrosion experiment is 48 hours a length of.It changes with time to the surrosion amount of test button
Data carry out quantitative analysis, parabolically formal definition its fitting equation Δ G=k τ1/2, Δ G is the surrosion amount at moment；
K is parabolical coefficient, characterizes corrosion rate.Compared with pure straw, corrosion rate is reduced to K1=by K0=0.8674
0.3569, it is the 41.15% of original corrosion rate.
Embodiment 3:
Straw ash is mixed with quasi- eastern coal ash according to 1:1 ratio, suspension is made using dehydrated alcohol and is uniformly applied to T91
Reactor is warming up to 700 DEG C of holding constant temperature by sheet metal surface, and be passed through simulated flue gas (6% O2,12% CO2,
HCl, the balanced gas N2 of 500ppm), the T91 for applying ash is put into reactor after steady air current, is measured using weightening finish method rotten
Degree of corrosion weighs weight every 6h, and when corrosion experiment is 48 hours a length of.Set up Duplicate Samples.To the surrosion amount of test button
The data that change with time carry out quantitative analysis, parabolically formal definition its fitting equation Δ G=k τ1/2, Δ G is the moment
Surrosion amount；K is parabolical coefficient, characterizes corrosion rate.Compared with pure straw, corrosion rate is by K0=0.8674
It is reduced to K2=0.5025, is the 57.93% of original corrosion rate.
Embodiment 4:
Straw ash is mixed with quasi- eastern coal ash according to 3:1 ratio, suspension is made using dehydrated alcohol and is uniformly applied to T91
Reactor is warming up to 700 DEG C of holding constant temperature by sheet metal surface, and be passed through simulated flue gas (6% O2,12% CO2,
HCl, the balanced gas N2 of 500ppm), the T91 for applying ash is put into reactor after steady air current, is measured using weightening finish method rotten
Degree of corrosion weighs weight every 6h, and when corrosion experiment is 48 hours a length of.Set up Duplicate Samples.To the surrosion amount of test button
The data that change with time carry out quantitative analysis, parabolically formal definition its fitting equation Δ G=k τ1/2, Δ G is the moment
Surrosion amount；K is parabolical coefficient, characterizes corrosion rate.Compared with pure straw, corrosion rate is by K0=0.8674
It is reduced to K3=0.4613, is the 53.18% of original corrosion rate.
Embodiment 5:
Straw ash is mixed with quasi- eastern coal ash according to 0:1 ratio, suspension night is made using dehydrated alcohol and is applied to T91
Reactor is warming up to 700 DEG C of holding constant temperature by sheet metal surface, and be passed through simulated flue gas (6% O2,12% CO2,
HCl, the balanced gas N2 of 500ppm), the T91 for applying ash is put into reactor after steady air current, is measured using weightening finish method rotten
Degree of corrosion weighs weight every 6h, and when corrosion experiment is 48 hours a length of.Set up Duplicate Samples.To the surrosion amount of test button
The data that change with time carry out quantitative analysis, parabolically formal definition its fitting equation Δ G=k τ1/2, Δ G is the moment
Surrosion amount；K is parabolical coefficient, characterizes corrosion rate.Obtain pure quasi- eastern coal, corrosion rate K4=
0.1847。
It is to sum up told, passes through being sufficiently mixed biological material and coal material, corrosion of the biomass energy to superheater
Degree is substantially reduced.
The above is only a preferred embodiment of the present invention, does not play the role of any restrictions to the present invention.Belonging to any
Those skilled in the art, in the range of not departing from technical solution of the present invention, to the invention discloses technical solution and
Technology contents make the variation such as any type of equivalent replacement or modification, belong to the content without departing from technical solution of the present invention, still
Within belonging to the scope of protection of the present invention.
Claims (10)
1. a kind of biomass energy, which is characterized in that including biological material and coal material；The biological material and the coal
Material mixing.
2. biomass energy according to claim 1, which is characterized in that the biological material and the coal material according to
The ratio of 1-10:1-10 mixes.
3. biomass energy according to claim 1, which is characterized in that the biological material is straw, corn stover
With any one or more in bark；The coal material is any one or more in bituminous coal, anthracite and lignite.
4. a kind of detection biomass energy is to the method for corrosion of superheater degree, using as described in any one of claim 1-4
Biomass energy, which comprises the following steps:
Step 1: biological material and coal material being subjected to pulverization process, to obtain powdered biomass and coal dust；
Step 2: the powdered biomass and the coal dust are dried；
Step 3: the powdered biomass and the coal dust being mixed according to a certain percentage, obtain mixed-powder；
Step 4: polishing cleaning treatment is carried out to tubing sheet metal surface；
Step 5: the mixed-powder is uniformly applied to tubing sheet metal surface；
Step 6: heating tube furnace, while being passed through mixed gas；
Step 7: the tubing sheet metal being placed in the tube furnace, heated at constant temperature is for a period of time；
Step 8: taking out the tubing sheet metal every one end time, measure its mass change.
5. detection biomass energy according to claim 4 is to the method for corrosion of superheater degree, which is characterized in that in step
In 1, carry out the biological material and coal material to be crushed to 60-100 mesh.
6. detection biomass energy according to claim 4 is to the method for corrosion of superheater degree, which is characterized in that in step
In 2, the powdered biomass and the coal dust dry 1-2h in the environment of 75-105 DEG C.
7. detection biomass energy according to claim 4 is to the detection method of corrosion of superheater degree, which is characterized in that
In step 3, powdered biomass and the coal dust are mixed according to the ratio of 1-10:1-10.
8. detection biomass energy according to claim 4 is to the method for corrosion of superheater degree, which is characterized in that in step
In 6, the heating rate of tube furnace is 20-30 DEG C/min, and mixed gas is oxygen, the mixing of carbon dioxide, nitrogen and hydrogen chloride
Gas；The flow rate of the mixed gas is 1-2L/min.
9. detection biomass energy according to claim 4 is to the method for corrosion of superheater degree, which is characterized in that in step
In 7, heated at constant temperature 30-48h in the environment of 700-900 DEG C.
10. detection biomass energy according to claim 4 is to the method for corrosion of superheater degree, which is characterized in that in step
In rapid 8, the tubing sheet metal is taken out every 6h, measures its mass change.
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| CN201811209112.2A CN109490180A (en) | 2018-10-17 | 2018-10-17 | A kind of method of biomass energy and detection biomass energy to corrosion of superheater degree |
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| CN201811209112.2A CN109490180A (en) | 2018-10-17 | 2018-10-17 | A kind of method of biomass energy and detection biomass energy to corrosion of superheater degree |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470588A (en) * | 2019-07-30 | 2019-11-19 | 东方电气集团东方锅炉股份有限公司 | A kind of prediction technique of biomass fuel to boiler plant likelihood of corrosion |
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Cited By (2)
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| CN110470588A (en) * | 2019-07-30 | 2019-11-19 | 东方电气集团东方锅炉股份有限公司 | A kind of prediction technique of biomass fuel to boiler plant likelihood of corrosion |
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