CN104069738A - Low-temperature plasma denitrification catalyst module for industrial furnaces - Google Patents
Low-temperature plasma denitrification catalyst module for industrial furnaces Download PDFInfo
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- CN104069738A CN104069738A CN201310106301.8A CN201310106301A CN104069738A CN 104069738 A CN104069738 A CN 104069738A CN 201310106301 A CN201310106301 A CN 201310106301A CN 104069738 A CN104069738 A CN 104069738A
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Abstract
The invention provides a low-temperature plasma denitrification catalyst module for industrial furnaces. The catalyst module is a 200mm long, 300mm wide and 15mm thick solid module formed by adopting aluminate refractory concrete as a base material, adding a catalyst, a stabilizer and a pore forming agent, stirring the materials and then pouring the materials. The catalyst module is installed at the upper part of a hearth. A front folding smoke wall and a front arch upper wall at a smoke outlet face to the fire side. Starting from seeking a low-cost denitrification technology, the low-temperature plasma matter state generated during combustion is fully utilized and the catalysis technology is simultaneously applied to a plasma matter state system to form synergism of plasmas and the catalyst to reduce most nitric oxides in the smoke to N2, thus becoming the brand-new denitrification technology with the characteristics of low-cost transformation and low-cost operation. The nitric oxide discharge is reduced by 60%, and when the content of basic nitrogen is lower than 1%, the smoke NOX discharge is lower than 200mg/Nm<3> and is up to the national discharge standard.
Description
Technical field
The module that the present invention relates to a kind of solid catalyst, is applicable to Industrial Stoves.
Background technology
In burning, all can produce a large amount of NO taking fossil fuels such as coal, oil, natural gases as the Industrial Stoves kiln of fuel
xas administration way, the technology such as existing SNCR, SCR are all because its equipment is huge, investment is strange high, complex structure, is particularly even greater than kiln investment itself for middle-size and small-size Industrial Stoves denitration expense, adds operating cost, floor space is large, and prior art becomes the bottleneck of middle-size and small-size kiln denitration emission reduction work.
For this reason, be badly in need of finding a kind of practical, denitration technology with low cost.
My company is from denitration technology cheaply, and the low-temperature plasma states of matter producing while making full use of burning is applied to catalysis technique in plasma states of matter system simultaneously, forms plasma and acts synergistically with catalyst, and nitrogen oxides in effluent major part is reduced into N
2, become the brand-new denitration technology of rebuilding at low cost, low cost movement.
summary of the invention
For the deficiency of traditional denitration technology, the present invention is from finding denitration technology cheaply, the low-temperature plasma states of matter producing while making full use of burning, catalysis technique is applied in plasma states of matter system simultaneously, form plasma and catalyst synergy, nitrogen oxides in effluent major part is reduced into N
2, become the brand-new denitration technology of rebuilding at low cost, low cost movement.
1, reaction mechanism
The enrichment of low-temperature plasma body space a large amount of active high activity species, as ion, high energy electron, atom, molecule and the free radical of excitation state.These high activity species and contaminant molecule are as NO
xelectron collision occurs, and free radical collision or ion collision, produce ionization, because the equilibrium energy of active specy particle is higher than contaminant molecule bond energy, opens the chemical bond of gas pollutant molecule in collision, makes NO
xbe reduced to N
2.
In the time that catalyst is placed in plasma field, active particle bombardment catalyst surface, catalyst granules is polarized, and forms secondary, will form on surface field intensity and strengthen district.Because catalyst has certain adsorption capacity to contaminant molecule, form enriching pollutants district on its surface in addition.Will, under low temperature plasma and catalyst synergy, there are rapidly various reactions like this, pollutant is removed.
On the other hand, the active specy in low temperature plasma contains huge energy, can cause and be positioned near the catalyst of plasma, and can reduce the activation energy of reaction.Catalyst can also optionally react with the byproduct producing in different types of pollutant or low-temperature plasma system simultaneously, obtains free of contamination carbon dioxide, water and nitrogen etc.
In the time of low-temperature plasma and catalyst synergy, more direct catalyst method or simple low temperature plasma method have higher removal efficiency, and have improved the selective of reaction.
2, making of the present invention and installation
The present invention adopts aluminous refractory cement concrete as base material, adds catalyst, stabilizing agent, pore creating material, after stirring, pours into the solid modules of the long 200mm of size, wide 300mm, thick 15mm.Catalyst module is installed on to upper furnace, exhanst gas outlet flue inwall surrounding.
Beneficial effect of the present invention:
1. nitrogen oxide emission reduces by 60%.
2. when base nitrogen content is lower than 1% time, flue gas NO
xdischarge capacity is lower than 200mg/Nm
3reach discharging standards.
Brief description of the drawings: Fig. 1 is installation site figure of the present invention.
detailed description of the invention
1, the present invention adopts aluminous refractory cement concrete as base material, adds catalyst, stabilizing agent, pore creating material, after stirring, pours into the solid modules of the long 200mm of size, wide 300mm, thick 15mm;
2, while installation, just catalyst module is installed on upper furnace, exhanst gas outlet flue inwall surrounding (seeing Fig. 1).
Claims (3)
1. an Industrial Stoves low-temperature plasma denitrification catalyst module, is characterized in that: base material is made up of refractory concrete, accounts for 88～90%, and catalyst accounts for 6-8%, and stabilizing agent accounts for 2%, and pore creating material accounts for 2%.
2. according to claim 1, it is characterized in that: in catalyst, major catalyst is made up of molecular sieve.
3. according to claim 1, it is characterized in that: catalyst module is installed on the flue inwall surrounding of burner hearth exhanst gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310106301.8A CN104069738A (en) | 2013-03-29 | 2013-03-29 | Low-temperature plasma denitrification catalyst module for industrial furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310106301.8A CN104069738A (en) | 2013-03-29 | 2013-03-29 | Low-temperature plasma denitrification catalyst module for industrial furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104069738A true CN104069738A (en) | 2014-10-01 |
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ID=51591582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310106301.8A Pending CN104069738A (en) | 2013-03-29 | 2013-03-29 | Low-temperature plasma denitrification catalyst module for industrial furnaces |
Country Status (1)
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|---|---|
| CN (1) | CN104069738A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111151220A (en) * | 2020-01-09 | 2020-05-15 | 中山大学惠州研究院 | Preparation method of cement-based polyconnected honeycomb catalyst/adsorbent |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104056545A (en) * | 2013-03-21 | 2014-09-24 | 陈颖通 | Chain boiler low temperature plasma denitration catalyst module |
-
2013
- 2013-03-29 CN CN201310106301.8A patent/CN104069738A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104056545A (en) * | 2013-03-21 | 2014-09-24 | 陈颖通 | Chain boiler low temperature plasma denitration catalyst module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111151220A (en) * | 2020-01-09 | 2020-05-15 | 中山大学惠州研究院 | Preparation method of cement-based polyconnected honeycomb catalyst/adsorbent |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141001 |