CN116769527A - Coal combustion improver, preparation method and use method - Google Patents
Coal combustion improver, preparation method and use method Download PDFInfo
- Publication number
- CN116769527A CN116769527A CN202310996019.5A CN202310996019A CN116769527A CN 116769527 A CN116769527 A CN 116769527A CN 202310996019 A CN202310996019 A CN 202310996019A CN 116769527 A CN116769527 A CN 116769527A
- Authority
- CN
- China
- Prior art keywords
- fire coal
- parts
- combustion improver
- coal combustion
- activated carbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003245 coal Substances 0.000 title claims abstract description 70
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 65
- 238000004519 manufacturing process Methods 0.000 claims abstract description 35
- 239000002699 waste material Substances 0.000 claims abstract description 30
- 238000004821 distillation Methods 0.000 claims abstract description 28
- 239000010802 sludge Substances 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 229910052751 metal Chemical class 0.000 claims abstract description 13
- 239000002184 metal Chemical class 0.000 claims abstract description 13
- 150000003839 salts Chemical class 0.000 claims abstract description 13
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 239000007800 oxidant agent Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims description 12
- 239000012286 potassium permanganate Substances 0.000 claims description 8
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 7
- 239000000292 calcium oxide Substances 0.000 claims description 7
- 239000013064 chemical raw material Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 239000000575 pesticide Substances 0.000 claims description 7
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical group [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 2
- 239000010842 industrial wastewater Substances 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 claims description 2
- 239000002910 solid waste Substances 0.000 abstract description 12
- 230000007613 environmental effect Effects 0.000 abstract description 8
- 238000004064 recycling Methods 0.000 abstract description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 239000011593 sulfur Substances 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 239000003814 drug Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 235000010855 food raising agent Nutrition 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention provides a fire coal combustion improver, a preparation method and a use method thereof, belonging to the technical field of comprehensive utilization of solid wastes. The invention provides a fire coal combustion improver which comprises the following raw materials in parts by weight: 45-55 parts of distillation residues, 30-40 parts of waste activated carbon, 5-10 parts of industrial sludge, 2-5 parts of oxidizing agents and 3-6 parts of sulfur-fixing agents. The invention fully utilizes the combustible carbon and metal salt components in the distillation residues, the waste activated carbon and the industrial sludge, changes waste into valuable, reduces the using amount of coal, has no secondary pollution after combustion, reduces the production cost of enterprises, realizes the reduction and recycling of dangerous solid wastes, reduces the emission of harmful gases such as sulfur dioxide and the like, and has better social and environmental benefits.
Description
Technical Field
The invention relates to the technical field of comprehensive utilization of solid wastes, in particular to a fire coal combustion improver, a preparation method and a use mode.
Background
The distillation residues, the waste activated carbon and the industrial sludge are used as solid wastes which are inevitably generated in the production process of chemical enterprises such as chemical raw material manufacturing, pesticide manufacturing, medicine manufacturing and the like, are one of main pollution sources in the chemical industry, and are often various, large in production amount and high in environmental risk. The components of these waste residues are complex, most of them contain high concentrations of organic pollutants, some of which are extremely toxic, flammable and explosive substances, and most of which are hazardous wastes. Therefore, the waste residues in the chemical industry must be properly treated to avoid environmental pollution. At present, for solid wastes such as distillation residues, waste activated carbon, industrial sludge and the like, pharmaceutical enterprises generally perform disposal by entrusting third-party hazardous waste disposal operation units to burn or entrusting incineration power plants to burn, and the method has strict environmental management and high treatment cost, can not realize recycling of dangerous solid wastes in plants, and causes resource waste.
The coal resources are limited, the storage content is continuously reduced, the coal is used as non-renewable resources, under the constraint of energy conservation, emission reduction and low carbon development, the clean and efficient utilization of the coal resources can save energy, better economic benefits can be obtained, and the economic benefits for improving the utilization efficiency of the coal are very considerable especially for industrial coal households. Therefore, the coal combustion improver is used, coal resources are utilized more reasonably, and the method has important strategic significance for protecting the environment.
Based on the background of the dilemma of treatment of distillation residues, waste activated carbon and industrial sludge in the chemical industry, the industrial solid wastes such as the distillation residues, the waste activated carbon and the like are used for preparing the fire coal combustion improver, and the fire coal combustion improver which is high in efficiency, low in cost and stable and effective for a long time is developed, so that the recycling of solid waste and the combustion efficiency of the coal can be realized, and the fire coal combustion improver has very important practical significance from the aspects of energy conservation and environmental protection.
Disclosure of Invention
In view of the above, the invention aims to provide a fire coal combustion improver, a preparation method and a use method thereof, and the fire coal combustion improver provided by the invention fully utilizes combustible carbon and metal salt components in distillation residues, waste activated carbon and industrial sludge, changes waste into valuables, reduces the use amount of coal, has no secondary pollution after combustion, and reduces the production cost of enterprises.
In order to achieve the above object, the present invention provides the following technical solutions: the fire coal combustion improver comprises the following raw materials in parts by weight: 45-55 parts of distillation residues, 30-40 parts of waste activated carbon, 5-10 parts of industrial sludge, 2-5 parts of oxidizing agents and 3-6 parts of sulfur-fixing agents.
Preferably, the distillation residues are distillation residues and reaction residues generated in the chemical industry production process of chemical raw material manufacture, pesticide manufacture and medicine manufacture.
Further preferably, the distillation residue and the reaction residue contain combustible carbon and metal salts; the metal salt is organic metal salt and/or inorganic metal salt.
In the invention, as the distillation residues contain higher combustible carbon components and metal salts, the heat value of the distillation residues is equivalent to that of common solid biomass fuel, and the distillation residues can be used as fuel after being dried; the metal salt is a good coal-fired catalyst, can stir the air flow in the coal bed, promote the ash or the CO of the combustion products on the surfaces of carbon particles to be separated, and improve the combustion condition of coal.
Preferably, the waste activated carbon is waste activated carbon adsorbing organic impurities generated in the chemical industry production process of chemical raw material manufacture, pesticide manufacture and medicine manufacture.
Because the organic matters such as alcohols, ethers, alkyl esters, olefins, aromatic compounds and the like contained in the waste activated carbon produced by partial chemical enterprises are good smoke abatement agents, the organic matters are changed into hydrogen and oxygen at high temperature, and are mixed with coal gas combusted by coal to be combusted simultaneously, so that the combustion heat value is improved. In the present invention, the waste activated carbon may be powdered activated carbon, granular activated carbon, or activated carbon of other shapes.
Preferably, the industrial sludge is sludge containing organic matters in production wastewater generated by a chemical industry industrial wastewater treatment station in chemical raw material manufacturing, pesticide manufacturing and medicine manufacturing.
Further preferably, the industrial sludge has a water content of less than 65% and a calorific value of more than 1000cal/g.
Preferably, the oxidizing agent is potassium permanganate and the sulfur-fixing agent is calcium oxide.
In the invention, the potassium permanganate can decompose oxygen in the high-temperature combustion process, promote the combustion of fire coal and reduce the carbon residue rate: meanwhile, the potassium permanganate is decomposed and expanded in the combustion process, plays a role of a leavening agent, can increase the contact area of fire coal and oxygen, and promotes the combustion of the fire coal, thereby achieving the aim of saving the fire coal. Meanwhile, manganese dioxide generated by decomposing potassium permanganate can improve the combustion performance of coal dust.
Calcium oxide is selected as sulfur-fixing agent, and sulfur in the coal is burnt to generate SO 2 And SO 3 ，SO 2 With SO 3 Is a dynamic reversible reaction, SO 3 Can react with CaO in the combustion improver of the fire coal to generate CaSO 4 Is fixed and left in ash, SO 3 The concentration is reduced, thereby continuously reducing SO in the flue gas 2 SO generation 3 Thereby reacting to form CaSO 4 SO is reduced 2 The production quantity is reduced, thereby achieving the purpose of reducing the concentration of the smoke outlet.
The invention also provides a preparation method of the fire coal combustion improver, which comprises the steps of uniformly mixing the distillation residues, the waste activated carbon and the industrial sludge according to parts by weight, drying in a closed environment, mixing the dried distillation residues, the dried waste activated carbon and the dried industrial sludge, crushing, adding the sulfur-fixing agent and the oxidizing agent, and uniformly mixing to obtain the fire coal combustion improver.
Preferably, the drying temperature does not exceed 100 ℃.
In the invention, the distillation residues and the waste activated carbon are dried in a closed environment, so that the unorganized emission of organic pollutants contained in the solid waste can be avoided, and meanwhile, the drying temperature is controlled within 100 ℃, so that the stability of the materials can be ensured, no decomposition is generated, and the moisture of the materials can be controlled.
The invention also provides a using method of the fire coal combustion improver, the fire coal combustion improver is used for a fire coal boiler, and the adding amount of the fire coal combustion improver accounts for 5-10% of the adding amount of the fire coal by mass.
Preferably, the combustion condition of the coal-fired boiler is not lower than 900 ℃, and the humidity of the used raw coal is between 10 and 12 percent.
The beneficial technical effects are as follows:
(1) The preparation method provided by the invention is simple, only uses simple production procedures such as drying, crushing, stirring and the like, has simple equipment, has the advantages of rapidness, safety, environmental protection and the like, is easy to integrate, and meets the application requirements of large-scale engineering.
(2) The invention fully utilizes the catalysis of metal salt in the distillation residues, improves the combustion efficiency, changes waste into valuable by utilizing high-heat-value organic matters in the distillation residues, the waste activated carbon and the industrial sludge, reduces the using amount of coal, has no secondary pollution after combustion, and reduces the production cost of enterprises.
(3) The invention can save a great amount of dangerous solid waste outward transportation and disposal cost, realize the reduction and reclamation of the dangerous solid waste in the factory, reduce the environmental risk existing in the transportation process of backlog and outward transportation and disposal of the dangerous solid waste in the factory, and promote the matching of environmental protection treatment measures in the factory and the soundness of environmental management work.
(4) The prepared fire coal combustion improver can improve the precipitation rate of volatile matters of coal, reduce the ignition temperature of the coal, accelerate the burning speed of coke, shorten the ignition delay time, reduce ash residue carbon, relatively increase the burning calorific value, improve the burning efficiency of the coal and strengthen the burning utilization of low-quality coal resources. Sulfur oxide emissions are also reduced by adding small amounts of sulfur fixing agents to the coal.
Detailed Description
For a better understanding of the present invention, the following examples are further illustrated, but are not limited to the following examples.
Example 1
The raw materials are as follows by mass: 50 parts of distillation residues, 30 parts of waste activated carbon, 10 parts of industrial sludge, 5 parts of oxidant potassium permanganate and 5 parts of sulfur-fixing agent calcium oxide.
And (3) fully mixing the distillation residues, the waste activated carbon and the industrial sludge, putting the mixture into a dryer for drying, performing full-closed operation on the dryer, drying at 100 ℃ for 30 minutes, putting the dried materials into a pulverizer for pulverizing, and then adding an oxidant potassium permanganate and a sulfur-fixing agent calcium oxide for fully stirring and mixing to obtain a finished product of the fire coal combustion improver.
The coal combustion improver is mixed into raw coal according to a proportion for matching combustion, and the furnace temperature, the thermal efficiency of the boiler and the sulfur fixation efficiency are carried out, and the result shows that the average furnace temperature is improved by about 7% -10%, the thermal efficiency of the boiler is improved by about 8% -12%, and the sulfur fixation efficiency is improved by about 60% -66% by adding 5% -10% of the coal combustion improver. The residual carbon difference measurement shows that the performance of the 5% doping amount of the fire coal combustion improver can reach the grade II, and the performance of the 10% doping amount of the fire coal combustion improver can reach the grade I.
Example 2
The raw materials are as follows by mass: 50 parts of distillation residues, 38 parts of waste activated carbon, 5 parts of industrial sludge, 2 parts of oxidant potassium permanganate and 5 parts of sulfur-fixing agent calcium oxide.
The procedure for the manufacture of the fire coal combustion improver is the same as in example 1.
The coal combustion improver is mixed into raw coal according to a proportion for matching combustion, and the furnace temperature, the thermal efficiency of the boiler and the sulfur fixation efficiency are carried out, and the result shows that the average furnace temperature is improved by about 4% -6%, the thermal efficiency of the boiler is improved by about 7% -9% and the sulfur fixation efficiency is improved by about 60% -65% by adding 5% -10% of the coal combustion improver. The residual carbon difference measurement shows that the performance of the fire coal combustion improver can reach more than grade II.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. The fire coal combustion improver is characterized by comprising the following raw materials in parts by weight: 45-55 parts of distillation residues, 30-40 parts of waste activated carbon, 5-10 parts of industrial sludge, 2-5 parts of oxidizing agents and 3-6 parts of sulfur-fixing agents.
2. The fire coal combustion improver according to claim 1, wherein the distillation residues are distillation residues and reaction residues generated in the chemical industry production process of chemical raw material production, pesticide production and pharmaceutical production.
3. The fire coal combustion improver according to claim 2, wherein the distillation residues and reaction residues contain combustible carbon and metal salts; the metal salt is organic metal salt and/or inorganic metal salt.
4. The fire coal combustion improver according to claim 1, wherein the waste activated carbon is waste activated carbon adsorbing organic impurities generated in the chemical industry production process of chemical raw material production, pesticide production and pharmaceutical production.
5. The fire coal combustion improver according to claim 1, wherein the industrial sludge is sludge containing organic matters in production wastewater generated by a chemical industry industrial wastewater treatment station for chemical raw material production, pesticide production and pharmaceutical production.
6. The fire coal combustion improver according to claim 1, wherein the oxidant is potassium permanganate and the sulfur-fixing agent is calcium oxide.
7. The method for preparing the fire coal combustion improver according to any one of claims 1 to 6, characterized in that the distillation residues, the waste activated carbon and the industrial sludge are uniformly mixed according to parts by weight and then dried in a closed environment, then the dried distillation residues, the dried waste activated carbon and the dried industrial sludge are mixed and then crushed, and then the sulfur-fixing agent and the oxidizing agent are added and uniformly mixed, thus the fire coal combustion improver is produced.
8. The method of claim 7, wherein the drying temperature is no more than 100 ℃.
9. The method for using the fire coal combustion improver as claimed in any one of claims 1 to 6, wherein the fire coal combustion improver is used for a fire coal boiler, and the addition amount of the fire coal combustion improver accounts for 5 to 10 percent of the mass ratio of the addition amount of fire coal. .
10. The method of claim 9, wherein the combustion condition of the coal-fired boiler is not lower than 900 ℃ and the humidity of the raw coal is between 10 and 12%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310996019.5A CN116769527A (en) | 2023-08-09 | 2023-08-09 | Coal combustion improver, preparation method and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310996019.5A CN116769527A (en) | 2023-08-09 | 2023-08-09 | Coal combustion improver, preparation method and use method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116769527A true CN116769527A (en) | 2023-09-19 |
Family
ID=88013639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310996019.5A Pending CN116769527A (en) | 2023-08-09 | 2023-08-09 | Coal combustion improver, preparation method and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116769527A (en) |
-
2023
- 2023-08-09 CN CN202310996019.5A patent/CN116769527A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | Evaluation of combustion properties and pollutant emission characteristics of blends of sewage sludge and biomass | |
| Lasek et al. | Combustion properties of torrefied biomass obtained from flue gas-enhanced reactor | |
| Qian et al. | Emission reduction research and development of PCDD/Fs in the iron ore sintering | |
| CN101658757B (en) | High-efficiency environmental-friendly coal-saving sulphur-fixing antismoke agent and production technology thereof | |
| US20060218853A1 (en) | Composition for preventing scaling, excluding of soot, clinker and sludge, and controlling flame in combustion apparatus | |
| CN103934254B (en) | A kind of system and method for cement kiln associated treatment domestic waste | |
| CN107497467B (en) | Pyrolysis gasification catalyst and papermaking waste treatment process using same | |
| Sun et al. | Behaviour of mercury during Co-incineration of sewage sludge and municipal solid waste | |
| WO2023060946A1 (en) | System and method for incinerating oil sludge by using power station pulverized coal boiler | |
| CN1193042A (en) | High-energy sweetening coal-saving agent | |
| Xu et al. | NOx emission from the combustion of mixed fuel pellets of Fenton/CaO-conditioned municipal sludge and rice husk | |
| EP2860450B1 (en) | Method for thermal processing of organic waste | |
| CN103146453B (en) | Preparation process of sludge electrical coal | |
| CN104315519A (en) | Low-pollution self-cleaning combustion method and device for high-nitrogen content combustible waste | |
| CN102297433A (en) | Method for removing dioxin from fume of garbage incinerator | |
| CN116769527A (en) | Coal combustion improver, preparation method and use method | |
| KR100340087B1 (en) | A solid fuel used waste plastic and the manufacturing method of the above solid fuel | |
| CN101225343A (en) | Coal-saving combustion-supporting additive | |
| CN104059711A (en) | Combustible domestic garbage mixture and application thereof | |
| KR102216893B1 (en) | Method for manufacturing environment-friendly flammable substance combustion power improver | |
| CN104194861A (en) | Process for producing low-heating-value anthracite coal by sludge of sewage treatment plant and synthesis of catalyst of low-heating-value anthracite coal | |
| KR102601156B1 (en) | A Composition of Combustion promoter and a method for manufacturing the same | |
| CN101644438A (en) | Method for controlling dioxin pollution during treating waste | |
| Ningsih et al. | Emission and heavy metal content characteristic of densified refused derived fuels of oil sludge and biomass combination as an alternative fuel for cement plant | |
| CN219414778U (en) | System for solid waste vacuum pyrolysis handles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |