CN103203251A - Catalyst for pyrolyzing coking wastewater by using converter high-temperature flue gas - Google Patents
Catalyst for pyrolyzing coking wastewater by using converter high-temperature flue gas Download PDFInfo
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- CN103203251A CN103203251A CN2013101129000A CN201310112900A CN103203251A CN 103203251 A CN103203251 A CN 103203251A CN 2013101129000 A CN2013101129000 A CN 2013101129000A CN 201310112900 A CN201310112900 A CN 201310112900A CN 103203251 A CN103203251 A CN 103203251A
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Abstract
The invention relates to a catalyst for pyrolyzing coking wastewater by using converter high-temperature flue gas and an application method thereof, belonging to the technical field of ferrous metallurgy and chemistry. The chemical formula of the catalyst comprises the following materials in percentage by weight: 6.50-12.50% of titanium potassium oxalate, 4.80-10.00% of 18-niobium tungsten manganese phosphate, and the balance of water. After the materials are weighted according to determined formula contents, the titanium potassium oxalate is added into the water to uniformly stir firstly, then the 18-niobium tungsten manganese phosphate is weighted and added into the water, and the obtained product is uniformly stirred. The application method is implemented through the steps of when the catalyst is used, adding the catalyst into coking wastewater in a ratio that the catalyst accounts for 0.1% mass percent of the coking wastewater, and then uniformly stirring the obtained product. The invention provides a catalyst and preparation and application methods thereof, and the catalyst is simple in formula, remarkable in effect, lower in cost, simple in application method, and suitable for pyrolyzing coking wastewater by using converter high-temperature flue gas; and by using the catalyst, the pyrolyzing efficiency of coking wastewater in converter high-temperature flue gas can be effectively improved.
Description
Technical field:
The present invention relates to a kind of catalyst that utilizes converter high-temperature flue gas pyrolysis coking chemical waste water, belong to the Ferrous Metallurgy chemical technology field.
Background technology:
In the converter dedusting line, flue gas passes through residual heat boiler for exchanging heat in flue system after, flue-gas temperature is 850 ℃～1000 ℃, by spraying into a large amount of water, flue gas is carried out evaporative cooling in this position, flue gas is cooled to about 200 ℃, this process is not only carried out the charged modifier treatment of dust to flue gas, has also carried out thick dedusting simultaneously, but cooling procedure makes a large amount of obvious heat of smoke losses, and having consumed great amount of water resources, water consumption is about 0.1m3/ ton steel.
Coking chemical waste water is difficult to reach discharge index by biochemical treatment, especially the following index of the new COD30ppm that carries out in Shandong Province, by studies show that, contained organic matter just can decompose when 400 ℃ of left and right sides fully in the coking chemical waste water, if utilize the converter dedusting line high-temperature flue gas, substitute now used new water with coking chemical waste water flue gas is carried out the atomization and vaporization cooling, not only can save a large amount of new water, can also utilize the heat energy of 850 ℃～1000 ℃ of flue gases, organic matter in the coking chemical waste water is carried out thermal decomposition, make two cover systems utilize separately advantage mutually, dust pelletizing system utilizes the Water Energy in the coking chemical waste water to cool off, coking chemical waste water utilizes the heat energy of converter dust-removing flue gas to decompose, and the purpose that reaches complete Treatment of Wastewater in Coking does not influence the efficient of dedusting again.
By domestic and international retrieval, find no the report that utilizes converter high-temperature flue gas pyrolysis coking chemical waste water catalyst.
Summary of the invention:
At the incomplete deficiency of pyrolysis in the converter high-temperature flue gas of the organic matter in the coking chemical waste water in the prior art, the invention provides a kind of catalyst that utilizes converter high-temperature flue gas pyrolysis coking chemical waste water.
Summary of the invention:
The present invention is primarily aimed at and utilizes the inefficient deficiency of pyrolysis in the converter high-temperature flue gas pyrolysis coking chemical waste water, for promote coking chemical waste water in high-temperature flue gas fast, pyrolysis completely is to be the reaction of the material of gaseous state under the normal temperature, the temperature that catalyst adapts to is 200～1200 ℃, the object of catalysis is organic matter contained in the coking chemical waste water, and a kind of catalyst of liquid state is provided.
The technical solution adopted in the present invention is: this catalyst that utilizes converter high-temperature flue gas pyrolysis coking chemical waste water, and the consisting of of catalyst (percentage by weight):
Titanium potassium oxalate: 6.50～12.25%
18-tungsten niobium manganese phosphate: 4.80～10.00%
Water: residue
The catalyst solution for preparing is transparency liquid solution.Can adapt to higher temperature, in 700～1000 ℃ environment temperature, all can use.
Titanium potassium oxalate: molecular formula K2TiO (C2O4) 2, molecular weight: 354.15
18-tungsten niobium manganese phosphate: molecular formula Mn2PNb3W18O4018H2O, molecular weight: 4690, available from: sincere Chemical Industry Science Co., Ltd is set in Xi'an
Preferably, the described catalysis that utilizes converter high-temperature flue gas pyrolysis coking chemical waste water, chemical composition and weight percent content are:
Titanium potassium oxalate: 12.00%
18-tungsten niobium manganese phosphate: 4.95%
Water: 83.05%
The mechanism of catalytic cleanerr waste water pyrolysis is: utilize the fracture of lopps material contained in the polyoxometallate catalytic cleanerr waste water contained in titanium oxide contained in the titanium potassium oxalate, the 18-tungsten niobium manganese phosphate, thereby improve organic matter pyrolysis rate and pyrolysis efficient at high temperature, reach that contained organic matter is the material of gaseous state in the complete pyrolysis coking chemical waste water under normal temperature.
The described converter high-temperature flue gas pyrolysis coking chemical waste water Preparation of catalysts method of utilizing: titanium potassium oxalate according to according to joining in a certain amount of water after the formulation content weighing, is stirred and evenly mixed, 18-tungsten niobium manganese phosphate is added to the water according to formulation content, stir and evenly mix.
The described converter high-temperature flue gas pyrolysis coking chemical waste water Application of Catalyst of utilizing is for the high-temperature flue gas of converter dry method dust, converter wet dedusting, process through converter semi-dry dust pelletizing system.
The described using method of utilizing converter high-temperature flue gas pyrolysis coking chemical waste water catalyst: the mass percent 0.05～0.2% by coking chemical waste water joins in the coking chemical waste water in use, stirs and evenly mixs to get final product.
Preferably, join in the coking chemical waste water by the mass percent 0.1% of coking chemical waste water in use.
The characteristics of technical solution of the present invention:
1, catalytic efficiency height, catalytic effect is more than 90%.
2, the catalysis object is wide, can detected 66 kinds of organic matters in the existing Coking Plant Wastewater of energy catalysis.
3, use simply, easy to operate.
4, can adapt to higher temperature, in the environment temperature of 1000 ℃ of 700 ∽, all can use.
The specific embodiment:
Following examples are to further specify of the present invention, but the present invention is not limited thereto.
Embodiment 1:
A kind of catalyst that utilizes converter high-temperature flue gas pyrolysis coking chemical waste water, chemical composition and weight percent content are: titanium potassium oxalate 6%; 18-tungsten niobium manganese phosphate 10%, water 84%.
Embodiment 2:
A kind of catalyst that utilizes converter high-temperature flue gas pyrolysis coking chemical waste water, chemical composition and weight percent content are: titanium potassium oxalate 8%; 18-tungsten niobium manganese phosphate 8%, water 84%.
Embodiment 3:
A kind of catalyst that utilizes converter high-temperature flue gas pyrolysis coking chemical waste water, chemical composition and weight percent content are: titanium potassium oxalate 10%; 18-tungsten niobium manganese phosphate 6%, water 84%.
Embodiment 4:
A kind of catalyst that utilizes converter high-temperature flue gas pyrolysis coking chemical waste water, chemical composition and weight percent content are: titanium potassium oxalate 12%; 18-tungsten niobium manganese phosphate 4.95%, water 83.05%.
With the auxiliary agent of the embodiment of the invention 1～4, carry out weighing by the formulation content of determining after, earlier titanium potassium oxalate is added to the water stir after, the 18-tungsten niobium manganese phosphate of weighing content is added to the water again, stirring gets final product; Mass percent 0.1% by coking chemical waste water joins in the coking chemical waste water in use, stirs and evenly mixs to get final product.
When converter gas is 900 ℃, spray into the coking chemical waste water that has added 0.1% catalyst, the straying quatity of coking chemical waste water is 20m3/h, and at the condensed water of chilled-water system recovery coal gas of converter, the COD that measures condensed water illustrates the effect of catalyst, and experimental result sees the following form:
| ? | New water | Coking chemical waste water | Example 1 | Example 2 | Example 3 | Example 4 |
| COD content ppm | 6 | 6000 | 1500 | 667 | 258 | 15 |
Described new water is fresh tap water.
Claims (6)
1. catalyst that utilizes converter high-temperature flue gas pyrolysis coking chemical waste water, chemical composition and weight percent content are:
Titanium potassium oxalate: 6.50 ∽ 12.50%
18-tungsten niobium manganese phosphate: 4.80 ∽ 10.00%
Water: surplus.
2. the catalyst that utilizes converter high-temperature flue gas pyrolysis coking chemical waste water as claimed in claim 1 is characterized in that the chemical composition of described catalyst and weight percent content are:
Titanium potassium oxalate: 12.00%
18-tungsten niobium manganese phosphate: 4.95%
Water: 83.05%.
3. the converter high-temperature flue gas pyrolysis coking chemical waste water Preparation of catalysts method of utilizing as claimed in claim 1 is: after carrying out weighing by the formulation content of determining, earlier titanium potassium oxalate is added to the water stir after, the 18-tungsten niobium manganese phosphate of weighing formulation content again is added to the water, and stirs.
4. the converter high-temperature flue gas pyrolysis coking chemical waste water Application of Catalyst of utilizing as claimed in claim 1 or 2 is used for the high-temperature flue gas of converter dry method dust, converter wet dedusting, process through converter semi-dry dust pelletizing system.
5. utilize the using method of converter high-temperature flue gas pyrolysis coking chemical waste water catalyst as claimed in claim 1 or 2: the mass percent 0.05～0.2% by coking chemical waste water joins in the coking chemical waste water in use, stirs and evenly mixs.
6. as utilizing the using method of converter high-temperature flue gas pyrolysis coking chemical waste water catalyst as described in the claim 5, it is characterized in that the mass percent 0.1% by coking chemical waste water joins in the coking chemical waste water in use.
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| CN201310112900.0A CN103203251B (en) | 2013-04-02 | 2013-04-02 | Catalyst for pyrolyzing coking wastewater by using converter high-temperature flue gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104162449A (en) * | 2014-08-22 | 2014-11-26 | 陕西驭腾实业有限公司 | Pyrolysis catalyst for coking wastewater and preparation method of pyrolysis catalyst |
| CN104016429B (en) * | 2014-05-15 | 2016-04-27 | 莱芜钢铁集团有限公司 | A kind of Processes and apparatus utilizing converter dust-removing high-temperature flue gas pyrolysis coking chemical waste water |
| CN106376970A (en) * | 2016-10-21 | 2017-02-08 | 广西中烟工业有限责任公司 | Additive for reducing harmful substances in mainstream smoke of cigarette as well as preparation method and application thereof |
Citations (1)
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|---|---|---|---|---|
| CN101585620A (en) * | 2009-06-26 | 2009-11-25 | 河北建新化工股份有限公司 | Method for comprehensively treating high salt content organic industrial wastewater |
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2013
- 2013-04-02 CN CN201310112900.0A patent/CN103203251B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585620A (en) * | 2009-06-26 | 2009-11-25 | 河北建新化工股份有限公司 | Method for comprehensively treating high salt content organic industrial wastewater |
Non-Patent Citations (4)
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| DUANE A. FRIESEN等: "The Photoixidative Degradation of N-Methylpyrrolidinone in the Oresence of Cs3PW12¬O40 and TiO2Colloid Photocatalysts", 《ENVIRON.SCI.TECHNOL.》 * |
| DUANE A. FRIESEN等: "The Photoixidative Degradation of N-Methylpyrrolidinone in the Oresence of Cs3PW12¬O40 and TiO2Colloid Photocatalysts", 《ENVIRON.SCI.TECHNOL.》, no. 33, 31 December 1999 (1999-12-31), pages 3 * |
| YU YANG等: "Synergistic effect of Keggin-type [Xn+W11O39](12-n)- and TiO2 in macroporous hybrid materials [Xn+W11O39](12-n)-- TiO2 for the photocatalyst degradation of textile dye", 《JOURNAL OF MATERIALS CHEMISTRY》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104016429B (en) * | 2014-05-15 | 2016-04-27 | 莱芜钢铁集团有限公司 | A kind of Processes and apparatus utilizing converter dust-removing high-temperature flue gas pyrolysis coking chemical waste water |
| CN104162449A (en) * | 2014-08-22 | 2014-11-26 | 陕西驭腾实业有限公司 | Pyrolysis catalyst for coking wastewater and preparation method of pyrolysis catalyst |
| CN106376970A (en) * | 2016-10-21 | 2017-02-08 | 广西中烟工业有限责任公司 | Additive for reducing harmful substances in mainstream smoke of cigarette as well as preparation method and application thereof |
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| CN103203251B (en) | 2014-10-29 |
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Owner name: BEIJING ROOT GREEN ENVIRONMENTAL TECHNOLOGY CO., L Free format text: FORMER OWNER: LAIWU IRON + STEEL GROUP CORP., LTD. Effective date: 20150303 |
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Effective date of registration: 20150303 Address after: 100176, No. 2, building No. 7, Ronghua Road, Beijing economic and Technological Development Zone, 18, 1813 Patentee after: Beijing Taihe environmental protection science and Technology Development Co Ltd Address before: Friendship Street 271104 Shandong province Laiwu City Gangcheng District No. 38 Patentee before: Laiwu Iron & Steel Group Corp., Ltd. |