CN101735878B - High-efficiency coal catalyst and preparation method thereof - Google Patents
High-efficiency coal catalyst and preparation method thereof Download PDFInfo
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- CN101735878B CN101735878B CN2009101545368A CN200910154536A CN101735878B CN 101735878 B CN101735878 B CN 101735878B CN 2009101545368 A CN2009101545368 A CN 2009101545368A CN 200910154536 A CN200910154536 A CN 200910154536A CN 101735878 B CN101735878 B CN 101735878B
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- China
- Prior art keywords
- coal
- catalyst
- cadmia
- slag
- salt slurry
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- 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.)
- Expired - Fee Related
Links
- 239000003245 coal Substances 0.000 title claims abstract description 57
- 239000003054 catalyst Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000002893 slag Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 6
- 150000003839 salts Chemical class 0.000 claims description 23
- 239000002002 slurry Substances 0.000 claims description 23
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 9
- 239000011780 sodium chloride Substances 0.000 claims description 7
- 239000004480 active ingredient Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 13
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000001556 precipitation Methods 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000012267 brine Substances 0.000 abstract 2
- 239000010802 sludge Substances 0.000 abstract 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 abstract 2
- 239000002440 industrial waste Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 23
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 11
- 239000003830 anthracite Substances 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
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- Catalysts (AREA)
Abstract
The invention relates to a coal catalyst and preparation, aiming to provide a high-efficiency coal catalyst and a preparation method thereof. The catalyst is formed by mixing brine sludge, cadmia and steel slag with a dry method according to the following percentage by weight: 40-60% of brine sludge, 25-40% of cadmia and 10-30% of steel slag. The coal catalyst takes industrial waste as raw material, can greatly improve the volatile matter precipitation rate of coal, lowers the ignition temperature of coal and increases the burning velocity of coal. The invention can utilize waste resource in a recycling mode, has the characteristics of energy saving and environment protection and has low cost, high efficiency and favorable industrial application prospect. After being applied, the catalyst of the invention can effectively save coal usage amount, improves coal combustion value, increases coal burnout rate, especially lowers the ignition temperature of low volatile blind coal and improves the deficiency that the low volatile blind coal is hard to ignite so as to greatly improve the use of coal.
Description
Technical field
The present invention relates to a kind of coal combustion catalyst and preparation, particularly a kind of high-efficiency coal catalyst and preparation method thereof.
Background technology
Coal is important energy and industrial chemicals, and it is non-renewable resource.In recent years, because global oil crisis and resource exhaustion, energy-saving and emission-reduction had become the task of top priority that is becoming tight many national coping resources days.China is that big coal country consumes coal big country, and the coal overwhelming majority of producing is used for direct burning.But there are a series of problems such as the difficulty of catching fire, efficiency of combustion is low, environmental pollution is serious in coal in combustion process, therefore improves the efficient of coal combustion, reduces ignition temperature, reduces the most important thing that environmental pollution becomes China's energy-saving and emission-reduction work.
Except present more common improvement combustion apparatus and technology, people also study and draw the use coal combustion additive also is the effective measures that realize the coal high performance clean burning.Catalyst to the fugitive constituent precipitation rate that improves coal, reduce ignition temperature, increase burning velocity, improve burnout rate etc. influence is all arranged.Additive for fire coal can improve the burning of coal characteristic.Improve burning of coal efficient, the amount of being sparing in the use of coal.Can reduce the discharge capacity of pollutant again, have very realistic meanings.
Coal initial experience moisture content in receiving thermal process is separated out, and fugitive constituent is separated out, and simultaneously with inner chemical reaction process, when temperature reached ignition temperature, the thermal discharge of the inner chemical reaction of coal was greater than heat dissipation capacity, and coal takes fire.Igniting temperature of pulverized-coal is low more, and it is easy more to burn, and seems particularly important so how to reduce coal-fired ignition temperature.China is world's producing coal and uses coal big country that annual coal consumption reaches hundred million tons of hundreds ofs, in order to make catalyst better prospects for commercial application can be arranged, and must seek cheap coal combustion catalyst.
Mainly of the catalytic combustion effect of research pure chemistry material in the inventing type patent in the past to coal.Consider the practicality and the economy of catalyst, catalyst how to develop a kind of cheapness seems particularly important.
Summary of the invention
The technical problem that the present invention will solve is that high-efficiency coal catalyst a kind of cheapness, that have good prospects for commercial application and preparation method thereof is provided.Be the technical solution problem, technical scheme provided by the invention is:
A kind of high-efficiency coal catalyst is provided, and is that salt slurry, cadmia and the slag of 50um～200um forms through dry mixed by particle diameter, and each component weight percent content is: salt slurry 40%～60%, cadmia 25%～40%, slag 10%～30%;
Active ingredient that each component contains and the active ingredient weight percent content in this component is respectively:
In the salt slurry, NaCl is 15%～25%;
In the cadmia, Fe
2O
3Be 25%～35%, Fe
3O
4Be 25%～35%, ZnO is 10%～20%, and ZnS is 3%～9%;
In the slag, Fe
2O
3Be 15%～25%, Fe
3O
4Be 10%～20%, CaO is 40%～50%, Al
2O
3Be 5%～15%.
The present invention further provides the method for preparing aforementioned high-efficiency coal catalyst, comprises step:
(1) place ball mill to pulverize respectively in said salt slurry, cadmia and slag, being milled to particle diameter is 50um～200um;
(2) powder of salt slurry, cadmia and slag is even by said mixed.
The present invention also provides the method for the aforementioned high-efficiency coal catalyst of another kind of preparation, comprises step: said salt slurry, cadmia and slag are added in the ball mill in said ratio pulverize, being milled to particle diameter is 50um～200um.
Realization of the present invention is based on principle:
The coal combustion catalytic mechanism is divided into two kinds haply, and first kind for oxygen transmits theory, thinks that catalyst at first is reduced into metal under the heating condition, and metal adsorption oxygen obtains metal oxide, and metal is in the redox circulation, has accelerated the diffusion of oxygen.Second kind is electronics transfer theory, thinks that metal ion embeds the carbon intracell, and the carbon surface electronic structure changes, and as electronq donor, through electric charge migration accelerating part reactions step.The combustion-supporting effect of catalyst depends on its contained material.See that from chemical composition coal combustion catalyst can be divided into: the oxide of alkaline-earth metal, alkali metal, rare earth and transition metal, hydroxide and its esters, like K
2CO
3, FeCl
3, FeCl
2, Na
2CO
3, Ca (OH)
2, CaO, NaCl, K
2MnO
3And Fe
2O
3Deng.
Therefore, the invention has the beneficial effects as follows:
The present invention is the coal combustion catalyst of raw material with the trade waste, the fugitive constituent precipitation rate of raising coal that can be by a relatively large margin, reduce coal ignition temperature, increase coal combustion speed.The present invention can not only have the characteristics of energy-conserving and environment-protective with utilization of waste as resource, and Cheap highly effective, and favorable industrial application prospect is arranged.
Behind the catalyst in using the present invention; Not only can effectively practice thrift the coal use amount; And improve the coal combustion value, increased the burnout rate of coal, particularly reduced low-volatile anthracite ignition temperature; Improve the not fire-hazardous deficiency of low-volatile anthracite, thereby improved the use of coal greatly.
The specific embodiment
Below in conjunction with the specific embodiment the present invention is described in further detail:
Should use in the instance, salt slurry is taken from Shandong seaization limited company Sodium Carbonate Plant, Dan Xia smeltery, the golden south of the Five Ridges during cadmia is taken from, and slag is taken from Laigang, Shoudu Iron and Steel Co and is made steel remaining vessel slag, is trade waste, and its cost can be ignored.
High-efficiency coal catalyst among the present invention is that salt slurry, cadmia and the slag of 150um～200um forms through dry mixed by particle diameter, and each component weight percent content is: salt slurry 40%～60%, cadmia 25%～40%, slag 10%～30%;
Active ingredient that each component contains and the active ingredient weight percent content in this component is respectively: in the salt slurry, NaCl is 15%～25%; In the cadmia, Fe
2O
3Be 25%～35%, Fe
3O
4Be 25%～35%, ZnO is 10%～20%, and ZnS is 3%～9%; In the slag, Fe
2O
3Be 15%～25%, Fe
3O
4Be 10%～20%, CaO is 40%～50%, Al
2O
3Be 5%～15%.
Should use in the instance, the preparation of high-efficiency coal catalyst can realize through following manner: (1) places ball mill to pulverize respectively in said salt slurry, cadmia and slag, and being milled to particle diameter is 50um～200um; (2) powder of salt slurry, cadmia and slag is even by said mixed, obtain catalyst.
Certainly, also can adopt the preparation method of simplifying more: salt slurry, cadmia and slag are added in the ball mill in said ratio pulverize, being milled to particle diameter is 50um～200um, obtains catalyst.
It in the table 1 related data of each specific embodiment.
Table 1:
| The embodiment sequence number | The percentage by weight (%) of salt slurry in catalyst | The percentage by weight (%) of cadmia in catalyst | The percentage by weight (%) of slag in catalyst |
| Catalyst 1 | 40 (in salt slurry, NaCl is 25%) | 40 (in cadmia, Fe 2O 3Be 35%, Fe 3O 4Be 27%, ZnO is 18%, and ZnS is 9%) | 20 (in slag, Fe 2O 3Be 15%, Fe 3O 4Be 20%, CaO is 50%, Al 2O 3Be 15%) |
| Catalyst 2 | 45 (in salt slurry, NaCl is 21%) | 25 (in cadmia, Fe 2O 3Be 25%, Fe 3O 4Be 25%, ZnO is 10%, and ZnS is 7%) | 30 (in slag, Fe 2O 3Be 25%, Fe 3O 4Be 15%, CaO is 40%, Al 2O 3Be 5%) |
| Catalyst 3 | 60 (in salt slurry, NaCl 15%) | 30 (in cadmia, Fe 2O 3Be 31%, Fe 3O 4Be 35%, ZnO is 20%, and ZnS is 3%) | 10 (in slag, Fe 2O 3Be 18%, Fe 3O 4Be 10%, CaO is 43%, Al 2O 3Be 7%) |
The Application of Catalyst instance:
According to 0.2%, 0.5%, 1% and 2% mass ratio evenly mixes with Yunnan-Guizhou anthracite and Fujian anthracite with 3 kinds of catalyst, carries out the thermobalance test, adds catalyst to two kinds of anthracite ignition Influence of Temperature thereby draw.
Below each the table in be the related data of each specific embodiment.
| Catalyst 1 ratio | 0 (catalyst-free) | 0.2％ | 0.5％ | 1％ | 2％ |
| Yunnan-Guizhou anthracite ignition temperature | ?549 | 535 | 528 | 526 | 525 |
| Fujian anthracite ignition temperature | ?597 | 590 | 585 | 582 | 580 |
| Catalyst 2 ratios | 0 (catalyst-free) | 0.2％ | 0.5％ | 1％ | 2％ |
| Yunnan-Guizhou anthracite ignition temperature | ?549 | 531 | 524 | 522 | 520 |
| Fujian anthracite ignition temperature | ?597 | 587 | 585 | 580 | 577 |
| Catalyst 3 ratios | 0 (catalyst-free) | 0.2％ | 0.5％ | 1％ | 2％ |
| Yunnan-Guizhou anthracite ignition temperature | ?549 | 540 | 535 | 532 | 525 |
| Fujian anthracite ignition temperature | ?597 | 595 | 591 | 585 | 580 |
What more than announce at last, only is specific embodiment of the present invention.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (3)
1. high-efficiency coal catalyst is that salt slurry, cadmia and the slag of 50 μ m～200 μ m forms through dry mixed by particle diameter, and each component weight percent content is: salt slurry 40%～60%, cadmia 25%～40%, slag 10%～30%;
Active ingredient that each component contains and the active ingredient weight percent content in this component is respectively:
In the salt slurry, NaCl is 15%～25%;
In the cadmia, Fe
2O
3Be 25%～35%, Fe
3O
4Be 25%～35%, ZnO is 10%～20%, and ZnS is 3%～9%;
In the slag, Fe
2O
3Be 15%～25%, Fe
3O
4Be 10%～20%, CaO is 40%～50%, Al
2O
3Be 5%～15%.
2. method for preparing the said high-efficiency coal catalyst of claim 1 comprises step:
(1) place ball mill to pulverize respectively in said salt slurry, cadmia and slag, being milled to particle diameter is 50 μ m～200 μ m;
(2) powder of salt slurry, cadmia and slag is even by said mixed.
3. method for preparing the said high-efficiency coal catalyst of claim 1 comprises step: said salt slurry, cadmia and slag are added in the ball mill in said ratio pulverize, being milled to particle diameter is 50 μ m～200 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101545368A CN101735878B (en) | 2009-11-12 | 2009-11-12 | High-efficiency coal catalyst and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101545368A CN101735878B (en) | 2009-11-12 | 2009-11-12 | High-efficiency coal catalyst and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101735878A CN101735878A (en) | 2010-06-16 |
| CN101735878B true CN101735878B (en) | 2012-11-21 |
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ID=42459911
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|---|---|---|---|
| CN2009101545368A Expired - Fee Related CN101735878B (en) | 2009-11-12 | 2009-11-12 | High-efficiency coal catalyst and preparation method thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232231B (en) * | 2014-09-18 | 2016-08-24 | 济南宝华新能源技术有限公司 | A kind of biomass-based fuel and preparation method |
| CN104232241B (en) * | 2014-10-13 | 2016-06-29 | 武汉科技大学 | A kind of additive for fire coal and preparation method thereof |
| CN105176618B (en) * | 2015-10-20 | 2017-10-10 | 张保森 | A kind of Filter Tuber For Clean Coal and its production method |
| CN108339549A (en) * | 2017-01-24 | 2018-07-31 | 杨秋良 | A kind of vanadium base can abandon coal combustion catalyst and its preparation method and application |
| CN109097151B (en) * | 2018-08-29 | 2020-09-22 | 安徽绿邦环保能源科技有限公司 | Preparation method of biomass coal combustion improver |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5719099A (en) * | 1996-10-22 | 1998-02-17 | Bhat Industries, Inc. | Method and compositions for stabilization of heavy metals, acid gas removal and ph control in contaminated matrices |
| CN1660977A (en) * | 2004-06-18 | 2005-08-31 | 侯岛 | High performance desulfurization and eliminating pollution of fly ash inside coal burning boiler in electric power plant |
| CN101168128A (en) * | 2006-10-25 | 2008-04-30 | 刘芬 | Composite metal oxide catalyst and its preparing process and use |
| CN101565636A (en) * | 2009-04-14 | 2009-10-28 | 中国科学院山西煤炭化学研究所 | Method for increasing content of coal-gasification methane |
-
2009
- 2009-11-12 CN CN2009101545368A patent/CN101735878B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5719099A (en) * | 1996-10-22 | 1998-02-17 | Bhat Industries, Inc. | Method and compositions for stabilization of heavy metals, acid gas removal and ph control in contaminated matrices |
| CN1660977A (en) * | 2004-06-18 | 2005-08-31 | 侯岛 | High performance desulfurization and eliminating pollution of fly ash inside coal burning boiler in electric power plant |
| CN101168128A (en) * | 2006-10-25 | 2008-04-30 | 刘芬 | Composite metal oxide catalyst and its preparing process and use |
| CN101565636A (en) * | 2009-04-14 | 2009-10-28 | 中国科学院山西煤炭化学研究所 | Method for increasing content of coal-gasification methane |
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| Publication number | Publication date |
|---|---|
| CN101735878A (en) | 2010-06-16 |
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Application publication date: 20100616 Assignee: PYNEO CO.,LTD. Assignor: Zhejiang University Contract record no.: 2012330000597 Denomination of invention: High-efficiency coal catalyst and preparation method thereof Granted publication date: 20121121 License type: Exclusive License Record date: 20121231 |
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