CN205007855U - Denitration catalyst structure and air heater who has denitration catalyst structure - Google Patents
Denitration catalyst structure and air heater who has denitration catalyst structure Download PDFInfo
- Publication number
- CN205007855U CN205007855U CN201520437113.8U CN201520437113U CN205007855U CN 205007855 U CN205007855 U CN 205007855U CN 201520437113 U CN201520437113 U CN 201520437113U CN 205007855 U CN205007855 U CN 205007855U
- Authority
- CN
- China
- Prior art keywords
- catalyst
- catalyst structure
- skeleton
- air preheater
- low temperature
- 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.)
- Expired - Fee Related
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 96
- 230000001172 regenerating effect Effects 0.000 claims abstract description 16
- 238000007747 plating Methods 0.000 claims description 7
- 239000003517 fume Substances 0.000 claims description 5
- 239000002638 heterogeneous catalyst Substances 0.000 claims description 5
- 239000003546 flue gas Substances 0.000 abstract description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract 3
- 238000000576 coating method Methods 0.000 abstract 3
- 239000003245 coal Substances 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
The utility model belongs to environmental engineering field, specific theory relate to a denitration catalyst structure and air heater who has denitration catalyst structure, denitration catalyst structure, including skeleton and the catalyst coating on the skeleton of coating, the skeleton is air heater's the thermal element that receives, the utility model discloses a catalyst structure receives the thermal element fixed through regenerative air preheater, and the low temperature catalyst coats on receiving the thermal element, receives the thermal element to be the wave, and coating catalyst on it and flue gas have a great area of contact, and this kind coats in regenerative air preheater and be heated the catalyst structure on component surface owing to adopt regenerative air preheater to receive the thermal element as the catalyst bed frame, and it is too big to have solved present catalyst skeleton weight, problem that the bed frame can't the bearing. Simultaneously, the air heater of the low temperature catalyst that has coated both can exert its air heater's effect, can regard as the reactor again, save material and space, reduce cost.
Description
Technical field
The utility model belongs to field of environment engineering, relates to a kind of denitrating catalyst structure specifically and has the air preheater air preheater of denitrating catalyst structure.
Background technology
China is the country of " rich coal, oil-poor, weak breath ", and in the primary energy utilized and electric energy are formed, coal account for leading position.The coal resources of more than 80% are for when station boiler, Industrial Boiler and civil boiler being all the mode adopting directly burning, the NO that coal burning produces
xit is the main cause of China's atmosphere pollution.According to the display of Chinese environmental protection department statistics data, the total emission volumn of China's nitrogen oxide in 2010 is 2273.6 ten thousand tons, within 2011, is 2404.3 ten thousand tons, within 2013, is 2227.3 ten thousand tons.In order to reduce and control the harm that nitrogen oxide causes environment, China just promulgated " fossil-fuel power plant atmospheric pollutant emission standard " (GB13223-1996) in 1996, proposed coal-burning power plant NO
xemission request, has promulgated " fossil-fuel power plant atmospheric pollutant emission standard " (GB13223-2003) for 2003, to coal-burning power plant NO
xdischarge has had more strict requirement; national environmental protection portions in 2008 and National Development and Reform Commission combine and issued, and " national acid rain and sulfur dioxide pollution control Eleventh Five-Year Plan " is pointed out, by 2010, national discharged nitrous oxides total amount should control level in 2005.NO in 2015 is it is also proposed in " national environmental protection " 12 " planning " subsequently
xtotal emission volumn cut down the requirement of 10% than 2010.
SCR (SCR) denitration technology is the gas denitrifying technology that application is at present comparatively extensive, denitration efficiency is higher.Catalyst is the research emphasis of SCR denitration technology, and the catalyst structure form of current commercial Application mainly contains cellular, tabular and corrugated.Honeycomb body is all catalyst material, and the wear resistance such as anti-flue gas flying dust are poor, are applicable to the denitrating flue gas that smoke content is not high; Tabular and corrugated catalyst agent all belong to nonuniformity catalyst structure, have certain mechanical strength and abrasion resistance, but catalyst backbone weight is comparatively large, causes the load-bearing of reaction unit pedestal large.
Summary of the invention
The purpose of this utility model is to solve the deficiencies in the prior art, a kind of denitrating catalyst structure being coated on rotary regenerative air preheater heated element surface is provided, this out of stock catalyst structure catalyst and flue gas have larger contact area, adopt rotary regenerative air preheater heated element as catalyst backbone, overcome existing catalyst backbone weight too large, pedestal cannot the defect of load-bearing.
The utility model solves the technical scheme that its technical problem adopts:
A kind of denitrating catalyst structure, comprise skeleton and be coated on the catalyst coat on skeleton, described skeleton is the heated element of air preheater.
Preferably, described skeleton is the heated element of corrugated rotary regenerative air preheater, and described catalyst structure is corrugated plate dst heterogeneous catalyst structure.
Preferably, described catalyst is low temperature SCR denitration catalyst.
Preferred, described catalyst to be best denitration temperature the be low temperature SCR denitration catalyst of about 150 DEG C.
Preferably, described catalyst equivalent is evenly coated on fume side and the air side of the heated element of air preheater.
Have the air preheater of denitrating catalyst structure, comprise air preheater body and denitrating catalyst structure, described denitrating catalyst structure comprises skeleton and is coated on the catalyst coat on skeleton, and described skeleton is the heated element of air preheater.
Preferably, described air preheater is rotary regenerative air preheater, and skeleton is the heated element of corrugated rotary regenerative air preheater, and described catalyst structure is corrugated plate dst heterogeneous catalyst structure.
Preferably, described catalyst is low temperature SCR denitration catalyst.
Preferred, described catalyst to be best denitration temperature the be low temperature SCR denitration catalyst of 150 DEG C.
Preferably, described catalyst equivalent is evenly coated on fume side and the air side of the heated element of air preheater.
The beneficial effects of the utility model are: the catalyst that the SCR denitration structure being coated on rotary regenerative air preheater heated element surface adopts is low temperature catalyst, its optimum activity temperature is lower, compared with existing engineer applied catalyst, solve the problem of catalyst easy-sintering under the high temperature conditions; Low temperature SCR denitration catalyst structure of the present utility model is fixed by rotary regenerative air preheater heated element, low temperature catalyst is coated in heated element, heated element undulate, apply superincumbent catalyst and flue gas has larger contact area, this kind is coated on the low temperature SCR denitration catalyst structure on rotary regenerative air preheater heated element surface owing to adopting rotary regenerative air preheater heated element as catalyst pedestal, solve existing catalyst backbone weight too large, pedestal cannot the problem of load-bearing.Meanwhile, the air preheater being coated with low temperature SCR denitration catalyst both can play the effect of its air preheater, as SCR reactor, can save material and space, reduce costs again.
Accompanying drawing explanation
Figure 1 shows that structural representation of the present utility model;
Figure 2 shows that Figure 1A place partial enlarged drawing.
In figure: 1, corrugated plating, 2, location-plate, 3, catalyst coat, 4, heated element.
Detailed description of the invention
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
Denitrating catalyst structure as illustrated in fig. 1 and 2, comprise skeleton and be coated on the catalyst coat 3 on skeleton, described skeleton is the heated element 4 of corrugated rotary regenerative air preheater, this heated element 4 is made up of corrugated plating 1 and location-plate 2, catalyst coat 3 is positioned at the both sides of corrugated plating 1 and location-plate 2, the heating surface area of heated element 4 unit volume of this kind of structure is large, and material adopts ordinary carbon steel, and this catalyst structure is corrugated plate dst heterogeneous catalyst structure.
In the present embodiment, described catalyst is low temperature SCR denitration catalyst, and preferred best denitration temperature is the low temperature SCR denitration catalyst of 150 DEG C, and described catalyst equivalent is evenly coated on fume side and the air side of the heated element of air preheater.
The processing method of denitrating catalyst structure is as follows: first by low-temperature catalyzed agent carrier TiO
2be coated in heated element, and dry; Adopt infusion process to be carried in catalyst carrier by low temperature catalyst active component, make the nitrates decompose of active component be oxide by and roasting dry to it, preparation becomes low temperature SCR denitration catalyst; To the heated element assembling of catalyst be coated with, finally the heated element being coated with catalyst be placed in rotary regenerative air preheater rotor.
Above-described embodiment is one of the present utility model preferably scheme, not does any pro forma restriction to the utility model, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (8)
1. a denitrating catalyst structure, it is characterized in that: comprise skeleton and be coated on the catalyst coat on skeleton, the heated element of described skeleton to be skeleton be corrugated rotary regenerative air preheater, this heated element is made up of corrugated plating and location-plate, described catalyst structure is corrugated plate dst heterogeneous catalyst structure, and catalyst coat is positioned at the both sides of corrugated plating and location-plate.
2. a kind of denitrating catalyst structure according to claim 1, is characterized in that: described catalyst is low temperature SCR denitration catalyst.
3. a kind of denitrating catalyst structure according to claim 2, is characterized in that: described catalyst to be best denitration temperature the be low temperature SCR denitration catalyst of 150 DEG C.
4. a kind of denitrating catalyst structure according to claim 1, is characterized in that: described catalyst equivalent is evenly coated on fume side and the air side of the heated element of air preheater.
5. there is the air preheater of denitrating catalyst structure, it is characterized in that: comprise skeleton and be coated on the catalyst coat on skeleton, the heated element of described skeleton to be skeleton be corrugated rotary regenerative air preheater, this heated element is made up of corrugated plating and location-plate, described catalyst structure is corrugated plate dst heterogeneous catalyst structure, and catalyst coat is positioned at the both sides of corrugated plating and location-plate.
6. the air preheater with denitrating catalyst structure according to claim 5, is characterized in that: described catalyst is low temperature SCR denitration catalyst.
7. the air preheater with denitrating catalyst structure according to claim 6, is characterized in that: described catalyst to be best denitration temperature the be low temperature SCR denitration catalyst of 150 DEG C.
8. the air preheater with denitrating catalyst structure according to claim 5, is characterized in that: described catalyst equivalent is evenly coated on fume side and the air side of the heated element of air preheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520437113.8U CN205007855U (en) | 2015-06-24 | 2015-06-24 | Denitration catalyst structure and air heater who has denitration catalyst structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520437113.8U CN205007855U (en) | 2015-06-24 | 2015-06-24 | Denitration catalyst structure and air heater who has denitration catalyst structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205007855U true CN205007855U (en) | 2016-02-03 |
Family
ID=55206485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520437113.8U Expired - Fee Related CN205007855U (en) | 2015-06-24 | 2015-06-24 | Denitration catalyst structure and air heater who has denitration catalyst structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205007855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111151132A (en) * | 2020-02-28 | 2020-05-15 | 中国华能集团清洁能源技术研究院有限公司 | Low-temperature SCR device and process for improving denitration performance of coal-fired unit |
-
2015
- 2015-06-24 CN CN201520437113.8U patent/CN205007855U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111151132A (en) * | 2020-02-28 | 2020-05-15 | 中国华能集团清洁能源技术研究院有限公司 | Low-temperature SCR device and process for improving denitration performance of coal-fired unit |
| CN111151132B (en) * | 2020-02-28 | 2023-07-25 | 中国华能集团清洁能源技术研究院有限公司 | Low-temperature SCR device and process for improving denitration performance of coal-fired unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105327698B (en) | Using titanium-containing blast furnace slag as the preparation method of the Novel SCR catalyst for denitrating flue gas of carrier | |
| CN110508274B (en) | Modified biochar low-temperature denitration catalyst and application thereof | |
| CN104138761B (en) | Sulfur-resistant membrane type low-temperature denitration catalyst and preparation method thereof | |
| CN104296543A (en) | Denitration and waste heat recovery integrated furnace | |
| CN206064161U (en) | A kind of middle low-temperature denitration of flue gas device | |
| CN102151585B (en) | Melamine-supported denitration catalyst and preparation method thereof | |
| CN101468314B (en) | Catalyst for low-temperature denitration of flue gas and preparation method thereof | |
| CN101934227A (en) | Catalyst for selective reduction of NOx with NH3 and preparation method thereof | |
| CN105521781A (en) | Method for preparing flue gas desulfurizer | |
| CN102728346A (en) | MnO2-TiO2 carbon nanotube-porous inorganic ceramic membrane low-temperature catalytic denitrification self-cleaning material and its preparation method | |
| CN104128188A (en) | Denitration catalyst used in waste incineration power plant and preparation method thereof | |
| CN103706239A (en) | Low temperature rotary electric station flue gas denitrification system based on absorption technology | |
| CN103084166A (en) | Low-temperature SCR (Selective Catalytic Reduction) denitration catalyst with multilevel macroporous-mesoporous structure and preparation method thereof | |
| CN106111124A (en) | A kind of denitrating catalyst with modified activated carbon as matrix material and preparation method thereof | |
| CN205007855U (en) | Denitration catalyst structure and air heater who has denitration catalyst structure | |
| CN104906953A (en) | Denitration catalyst structure and air preheater with same | |
| CN103537289B (en) | A kind of low temperature SCR denitration catalyst preparation method | |
| CN104084199A (en) | Monolithic catalyst for methane catalytic combustion and preparation method thereof | |
| CN103537273B (en) | Denitrating catalyst of a kind of collaborative demercuration and preparation method thereof | |
| CN104474888B (en) | A kind of processing method of elemental mercury from coal-fired flue gas | |
| CN108993523B (en) | Preparation process of medium-low temperature denitration and demercuration catalyst | |
| CN104043449B (en) | Based on new type low temperature SCR catalyst and the preparation method of cubic phase zircite carrier | |
| CN203408631U (en) | Selective catalytic reduction denitration device for NOx containing waste gases | |
| CN103406127A (en) | Non-toxic low-temperature denitrating catalytic catalyst and preparation method thereof | |
| CN205288047U (en) | Device that flue gas was handled to non - catalytic selectivity reduction method (SNCR) is used to glass kiln |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 |