CN101838573A - Coal combustion catalyst - Google Patents

Coal combustion catalyst Download PDF

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Publication number
CN101838573A
CN101838573A CN 201010101503 CN201010101503A CN101838573A CN 101838573 A CN101838573 A CN 101838573A CN 201010101503 CN201010101503 CN 201010101503 CN 201010101503 A CN201010101503 A CN 201010101503A CN 101838573 A CN101838573 A CN 101838573A
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coal
combustion catalyst
coal combustion
parts
combustion
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CN 201010101503
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CN101838573B (en
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胡大为
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胡大为
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Abstract

The invention discloses a coal combustion catalyst. The catalyst comprises the following raw materials in part by mass: 20 to 30 parts of chemical plating waste liquid, 20 to 35 parts of filtrate of waste residue of electrolytic aluminum, 25 to 30 parts of waste liquid of zinc mine, 5 to 10 parts of compound light rare earth and 3 to 5 parts of nonionic surfactant. When the product of the invention is added into coal, the change of the heat value of the coal can be measured by a bomb method. The product of the invention is suitable for various coal burning boilers, kilns and the like, and the effects of saving the coal by 5 to 20 percent and reducing emission of pollutants by 10 to 30 percent are achieved.

Description

A kind of coal combustion catalyst
Technical field
The present invention relates to the coal energy technology field, relate in particular to a kind of various coal firing boilers and kiln (energy-conserving product of) chemical tampering catalyticcombustion for example: coal-powder boiler, coal water slurry stove, chain furnace, fluidizing furnace, rotary kiln cement etc. that is applicable to.
Background technology
Coal is the topmost energy sources of China, according to statistics, 87% SO2 is arranged in atmospheric polluting material, and 79% flue dust and 76% benzene derive from coal combustion.Along with the raising of expanding economy, people's living standard and the consumption of fossil energy, energy-saving and emission-reduction have become the state basic policy of China and the emphasis of enterprise work.
At present, coal additive mainly is an oxygen supply combustion-supporting type additive on the market, at high temperature can decompose the material (as: saltpetre, SODIUMNITRATE, potassium permanganate, Potcrate, ammonium nitrate etc.) that discharges oxygen by utilizing, and improves efficiency of combustion.As a kind of efficient coal-saving combustion promoter and using method (number of patent application: 94105086) thereof; Safety, efficient, economical and environmental-protective combustion improver (number of patent application: 200510017167.X); A kind of economical and environmental-protective combustion improver (number of patent application: 200510045052.1) etc.Can play a role on the boiler that this kind method is insufficient in some oxygen supplys or efficiency of combustion is low, in recent years, along with the improvement of burner, boiler combustion efficiency improves greatly, and this kind method can't obtain satisfied effect.Therefore, improve coal efficiency of combustion, increase the sensible heat thermal value of coal in combustion processes, must adopt new, high-efficiency method---chemical tampering catalyticcombustion.
In coal, add a spot of chemical additive and can change the burning of coal performance, the chemical tampering coal catalytic combustion technology of Here it is coal.Coal is in combustion processes, katalysis by catalyzer, can improve molecular activity, reduce ignition activation energy, improve combustionvelocity, quicken the release of interior energy, shorten the tail-off time of coal in burner hearth, both can improve burning of coal intensity and fire box temperature, improve the burning of coal performance, can reduce coefficient of excess air by a relatively large margin again, reduce discharge amount of exhaust gas, reach the purpose of economizing on coal, reduce environmental pollution.
Summary of the invention
The objective of the invention is to deficiency at the prior art existence, a kind of chemical tampering coal combustion catalyst is provided, this catalyzer is by add the chemical additive that has catalyticing combustion process on a small quantity in coal, in the coal burning process, reduce the required activation energy of coal combustion, because the system capacity conservation will cause the sensible heat thermal value of coal to increase like this, can shorten burning the time of coal simultaneously, improve efficiency of combustion, reach from burning economizing on coal and reduce the purpose of environmental pollution in essence.
Above-mentioned purpose of the present invention solves by the following technical programs:
A kind of coal combustion catalyst, this catalyzer are by the raw material of following mass fraction: 3~8 composite compositions of plating wastewater 20~30, waste slag of electrolytic aluminium filtrate 20~35, zinc ore factory waste liquid 25~30, composite light-weight rare earth 5~20, nonionogenic tenside.
Above-mentioned nonionogenic tenside is nonionogenic tensides such as alkylsurfuric acid.
Plating wastewater, waste slag of electrolytic aluminium filtrate, zinc ore factory waste liquid exist in existing factory in a large number, and all the other raw materials are purchased on market and got final product.
Coal combustion catalyst product of the present invention, a need contact it evenly with coal and get final product in use, and addition is the 0.05-0.2% of Coal Quality, can reach the effect of the 5-20% that economizes on coal, minimizing pollutant emission 10-30%.
Embodiment
For making the present invention easier to understand,, further set forth the present invention below in conjunction with specific embodiment.
Embodiment 1
A kind of coal combustion catalyst makes by the raw material of following mass fraction is composite: plating wastewater 30, waste slag of electrolytic aluminium filtrate 30, zinc ore factory waste liquid 30, composite light-weight rare earth 5, nonionogenic tenside polyoxyethylene octylphenol ether 5.
Embodiment 2
A kind of coal combustion catalyst makes by the raw material of following mass fraction is composite: plating wastewater 25, waste slag of electrolytic aluminium filtrate 30, zinc ore factory waste liquid 30, composite light-weight rare earth 10, nonionogenic tenside polyoxyethylene nonylphenol ether 5.
Embodiment 3
A kind of coal combustion catalyst makes by the raw material of following mass fraction is composite: plating wastewater 25, waste slag of electrolytic aluminium filtrate 32, zinc ore factory waste liquid 30, composite light-weight rare earth 9, nonionogenic tenside polyoxyethylene nonylphenol ether 6.
Embodiment 4
A kind of coal combustion catalyst makes by the raw material of following mass fraction is composite: plating wastewater 20, waste slag of electrolytic aluminium filtrate 35, zinc ore factory waste liquid 25, composite light-weight rare earth 15, nonionogenic tenside polyoxyethylene octylphenol ether 5.
A kind of coal combustion catalyst bomb method test calorific value that embodiment 5 raw coal add embodiment 1 changes
After raw coal added a kind of coal combustion catalyst of 0.1% embodiment 1, bomb method test calorific value was changed to 8%.Test result such as following table:
Table 1 raw coal adds the preceding calorific value of chemical tampering coal burning protectional catalytic agent for coal saving
Calorific value behind the table 2 raw coal interpolation coal combustion catalyst
Embodiment 6 certain factory's chain furnace add the coal combustion catalyst of embodiment 2
On certain 20t/h of factory chain furnace boiler, carry out industrial performance test.With used coal in the experiment, identical down in the boiler operatiopn operating mode, according to burning operation in the best proportioning adding coal of chemical tampering coal burning protectional catalytic agent for coal saving.After the use, the actual observation combustion processes is found: after coal added protectional catalytic agent for coal saving, combustion time in advance, flame is bright before, and the coal ash color after the burning obviously bleaches, and the flue gas color is significantly shoaled, get rid of fume amount and reduce actual analysis coal conservation about 15%.
Embodiment 7 certain factory's coal water slurry stove add the coal combustion catalyst of embodiment 3
Prepare on factory's metabolic water coal slurry stoving oven at certain ceramic raw material and to carry out industrial experiment, burn in the best proportioning adding coal water slurry according to coal combustion catalyst, with do not add catalyzer incendiary situation and be analyzed, actual observation is found: after coal water slurry adds chemical tampering coal burning protectional catalytic agent for coal saving, flame is bright before, coal ash color after the burning bleaches, and the flue gas color shoals.It is 10-13.7% that actual analysis is saved the water slurry amount.
Embodiment 8 rotary kiln cement factories add the coal combustion catalyst of embodiment 4
Add coal combustion catalyst in certain rotary kiln cement factory, addition is the 0.1-0.125% of Coal Quality, long-time running, and actual effect shows that coal saving rate is 5-16.7%.
Last institute should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention but not limiting the scope of the invention; although the present invention has been done detailed description with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the essence and the scope of technical solution of the present invention.

Claims (4)

1. coal combustion catalyst is characterized in that the raw material by following mass fraction: 3~8 composite compositions of plating wastewater 20~30, waste slag of electrolytic aluminium filtrate 20~35, zinc ore factory waste liquid 25~30, composite light-weight rare earth 5~20, nonionogenic tenside.
2. coal combustion catalyst according to claim 1 is characterized in that, described nonionogenic tenside is nonionogenic tensides such as alkylphenol polyoxyethylene.
3. coal combustion catalyst according to claim 1 is characterized in that: described alkylphenol polyoxyethylene class ionic surfactant pack is drawn together any of polyoxyethylene octylphenol ether and polyoxyethylene nonylphenol ether or its combination.
4. coal combustion catalyst according to claim 1 is characterized in that: described catalyzer is 0.05~0.2% with the blending ratio of fire coal.
CN 201010101503 2010-01-25 2010-01-25 Coal combustion catalyst Active CN101838573B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010101503 CN101838573B (en) 2010-01-25 2010-01-25 Coal combustion catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010101503 CN101838573B (en) 2010-01-25 2010-01-25 Coal combustion catalyst

Publications (2)

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CN101838573A true CN101838573A (en) 2010-09-22
CN101838573B CN101838573B (en) 2013-04-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104327905A (en) * 2014-11-21 2015-02-04 于芳 High-efficiency coal combustion catalyst
CN105255539A (en) * 2015-09-22 2016-01-20 中国海洋石油总公司 Coal penetrating agent used for liquid coal saving agent
CN107057795A (en) * 2017-03-29 2017-08-18 合肥天沃能源科技有限公司 A kind of additive for improving coal combustion efficiency and preparation method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86104857A (en) * 1986-08-04 1988-03-30 张继桓 The combustion of coal additive
CN1111588C (en) * 2000-07-21 2003-06-18 罗松涛 Long-acting coal-saving comburant
CN100412166C (en) * 2006-11-22 2008-08-20 北京金源化学集团有限公司 Coal additive and method for raising coke output and performance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104327905A (en) * 2014-11-21 2015-02-04 于芳 High-efficiency coal combustion catalyst
CN105255539A (en) * 2015-09-22 2016-01-20 中国海洋石油总公司 Coal penetrating agent used for liquid coal saving agent
CN107057795A (en) * 2017-03-29 2017-08-18 合肥天沃能源科技有限公司 A kind of additive for improving coal combustion efficiency and preparation method thereof

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