CN203672863U - Device for evaluating flue gas denitration catalyst activity - Google Patents
Device for evaluating flue gas denitration catalyst activity Download PDFInfo
- Publication number
- CN203672863U CN203672863U CN201420032178.XU CN201420032178U CN203672863U CN 203672863 U CN203672863 U CN 203672863U CN 201420032178 U CN201420032178 U CN 201420032178U CN 203672863 U CN203672863 U CN 203672863U
- Authority
- CN
- China
- Prior art keywords
- catalyst activity
- gas
- denitration catalyst
- evaluating
- flue gas
- 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 - Lifetime
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 24
- 230000000694 effects Effects 0.000 title claims abstract description 23
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title abstract description 10
- 239000003546 flue gas Substances 0.000 title abstract description 10
- 239000007789 gas Substances 0.000 claims abstract description 42
- 238000010521 absorption reaction Methods 0.000 claims abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 4
- 239000010935 stainless steel Substances 0.000 claims abstract description 4
- 239000003517 fume Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 2
- 238000004088 simulation Methods 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
A device for evaluating flue gas denitration catalyst activity comprises mass flow meter controllers (1), a gas mixing tank (2), a mixed gas heater (3), an NH3 preheater (4), an H2O preheater (5), a reactor (6), a flue gas component analyzer (8) and a tail gas absorption bottle group (9). The mass flow meter controllers (1) are parallelly connected and respectively control the flow of various simulation gases, a flow guide plate is arranged inside the gas mixing tank (2), so that the simulation gases can be uniformly mixed, all valves and pipelines are made of 316L stainless steel, corrosion of acidic gases is decreased as far as possible, and denitration catalyst activity indexes can be effectively tested by setting simulation experiment parameters (temperature, flow, flow speed and flue gas component concentration).
Description
Technical field
The utility model belongs to air pollution control technique field, is a kind of test experience device of evaluating for fume denitration catalyst activity, can be catalyst for denitrating flue gas life-span management technical data is accurately provided.
Background technology
In flue-gas denitration process, the activity of catalyzer refers to the catalytic action ability that catalyzer plays in ammonia reductive agent and reaction of nitrogen oxides process, represents with m/h.In operational process, denitrating catalyst is owing to being subject to the impact of the factors such as gas ingredients, flue dust and temperature in flue gas, activity will reduce gradually, particularly uses and exceedes after 24000 hours, and the activity of catalyzer will be down to and cannot be met intrinsic denitration performance requirement.In addition, for the catalyzer of fresh (not using), activity is also an important indicator of reflection catalyst performance, is the important evidence that Benitration reactor design, catalyzer buying are checked and accepted.
Therefore, catalyst activity has important impact to flue gas denitrification system, is directly connected to whether qualified discharge of flue gas NOx; Be directly connected to NH
3escape amount whether exceed standard, whether can on the equipment such as downstream air preheater, produce salification problem; On the other hand, regeneration and the replacing plan of catalyst activity index to catalyzer has stronger directive significance, is also that operation is optimized and the foundation of adjusting.The utility model can be realized the Validity Test to denitrating catalyst activity index, thereby instructs the operation maintenance management of flue gas denitrification system.
Summary of the invention
The purpose of this utility model is to provide a kind of experimental provision of evaluating that denitrating catalyst activity index is detected, and it comprises mass flowmeter controller (1), gas mixing tank (2), mixed gas well heater (3), NH
3primary heater (4), H
2o primary heater (5), reactor (6), fume component analysis instrument (8) and tail gas absorption bottle group (9).The mass flowmeter controller (1) of this device is arranged in parallel, control respectively various analog gas flows, gas mixing tank (2) inside is provided with fair water fin, to guarantee that analog gas mixes, the material of all valves and pipeline is 316L stainless steel, to reduce as far as possible the corrosion of sour gas.
The purpose of this utility model is achieved in that
Catalyst samples (7) is installed in reactor (6), set the parameter (temperature, flow, flow velocity and smoke composition concentration) of simulated experiment, analog gas successively enters gas mixing tank (2) and mixed gas well heater (3), and with the NH preheating
3and H
2after O converges, enter reactor (6), realize catalytic denitration reaction, discharge after experiment waste gas absorbs by tail gas absorption bottle group (9).Variation by nitrous oxides concentration before and after reactor (6) obtains denitration efficiency, in conjunction with the parameter of experiment setting, can calculate the activity index of catalyzer.
Accompanying drawing explanation
Fig. 1 is a kind of device schematic diagram of evaluating for fume denitration catalyst activity.In figure, mark represents respectively: 1 mass flowmeter controller; 2 gas mixing tanks; 3 mixed gas well heaters; 4 NH
3primary heater; 5 H
2o primary heater; 6 reactors; 7 catalyst samples; 8 fume component analysis instrument; 9 tail gas absorption bottle groups.
Fig. 2 is gas mixing tank cut-away view.In figure, mark represents respectively: 1 gas mixing tank housing; 2 gas mixing tank induction pipes; 3 gas mixing tank outlets; 4 fair water fins.
Embodiment
Take accompanying drawing 1, accompanying drawing 2 as the present embodiment, the utility model is further illustrated below:
1,, according to shown in accompanying drawing 1, connect a kind of each parts of device of evaluating for fume denitration catalyst activity.
2, connect a kind of device general supply of evaluating for fume denitration catalyst activity.
3, connect N
2, CO
2, O
2, NO, SO
2, NH
3each simulation source of the gas, connects H
2the resource of water supply of O.
4, set each mass flowmeter controller (1), mixed gas well heater (3), NH
3primary heater (4), H
2the parameter of O primary heater (5), reactor (6) heating.
5, catalyst samples (7) is installed in reactor (6).
6, in tail gas absorption bottle group (9), pack absorption liquid to 1/2 height into.
7, open N
2isolation valve and variable valve, adjust desired flow, checks without gas toward external leakage.
8, open CO
2, O
2, NO, SO
2, NH
3each source of the gas isolation valve and H
2the O isolation valve of intaking.
9, drop into each mass flowmeter controller (1), mixed gas well heater (3), NH
3primary heater (4), H
2o primary heater (5), reactor (6) heating power supply.
10, the device of fume denitration catalyst activity evaluation is started working.
11, N
2, CO
2, O
2, NO, SO
2enter gas mixing tank (2), in gas mixing tank (2), under the effect of fair water fin, flow process extends, and each gas uniform mixes.
12, the gas after mixing is heated through mixed gas well heater (3), then with the NH preheating
3, H
2o converges and enters reactor (6), and all gas is flowed through after catalyst samples (7), enters absorption bottle and is cleaned, finally discharged to atmosphere.
13, treat that each parameter indication is stabilized in setting value, start timing, fume component analysis instrument (8) puts into operation.
14, the data that collect according to fume component analysis instrument (8) and experiment parameter calculate catalyst activity index.
Claims (3)
1. a device of evaluating for fume denitration catalyst activity, it comprises mass flowmeter controller (1), gas mixing tank (2), mixed gas well heater (3), NH
3primary heater (4), H
2o primary heater (5), reactor (6), fume component analysis instrument (8) and tail gas absorption bottle group (9), it is characterized in that mass flowmeter controller (1) is arranged in parallel, mixed gas well heater (3), NH
3primary heater (4), H
2o primary heater (5) is arranged in parallel, and fume component analysis instrument (8) is arranged in the smoke outlet of reactor (6).
2. a kind of device of evaluating for fume denitration catalyst activity according to claim 1, is characterized in that gas mixing tank (2) inside is provided with 4 fair water fins, and material is 316L stainless steel.
3. a kind of device of evaluating for fume denitration catalyst activity according to claim 1, is characterized in that reactor (6) adopts three sections of type of heating, and inner bag material is 316L stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420032178.XU CN203672863U (en) | 2014-01-20 | 2014-01-20 | Device for evaluating flue gas denitration catalyst activity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420032178.XU CN203672863U (en) | 2014-01-20 | 2014-01-20 | Device for evaluating flue gas denitration catalyst activity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203672863U true CN203672863U (en) | 2014-06-25 |
Family
ID=50969143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420032178.XU Expired - Lifetime CN203672863U (en) | 2014-01-20 | 2014-01-20 | Device for evaluating flue gas denitration catalyst activity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203672863U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107149875A (en) * | 2017-05-15 | 2017-09-12 | 大唐环境产业集团股份有限公司 | Heterogeneity injection apparatus and method for SCR cold simulation tests |
| CN108426975A (en) * | 2018-05-15 | 2018-08-21 | 东莞诺维新材料科技有限公司 | A kind of catalyst activity evaluating apparatus |
-
2014
- 2014-01-20 CN CN201420032178.XU patent/CN203672863U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107149875A (en) * | 2017-05-15 | 2017-09-12 | 大唐环境产业集团股份有限公司 | Heterogeneity injection apparatus and method for SCR cold simulation tests |
| CN107149875B (en) * | 2017-05-15 | 2023-04-11 | 大唐环境产业集团股份有限公司 | Non-uniform injection device and method for SCR cold-state modeling test |
| CN108426975A (en) * | 2018-05-15 | 2018-08-21 | 东莞诺维新材料科技有限公司 | A kind of catalyst activity evaluating apparatus |
| CN108426975B (en) * | 2018-05-15 | 2023-12-26 | 东莞诺维新材料科技有限公司 | Catalyst activity evaluation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NINGBO URBAN ENVIRONMENT OBSERVATION AND RESEARCH Free format text: FORMER OWNER: NINGBO URBAN ENVIRONMENT RESEARCH INSTITUTE (FUNDING), CHINESE ACADEMY OF SCIENCES Effective date: 20150324 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150324 Address after: 315800 Zhejiang province Ningbo city Beilun District Chunxiao Branch Road No. 88 Patentee after: NINGBO URBAN ENVIRONMENT OBSERVATION AND RESEARCH STATION-NUEORS, CHINESE ACADEMY OF SCIENCES Address before: 203 room 315800, East mould Engineering Center, Ningbo Polytechnic, 1069-2 new road, Beilun District, Zhejiang, Ningbo Patentee before: NINGBO URBAN ENVIRONMENTAL RESEARCH CENTER, CHINESE ACADEMY OF SCIENCES |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |
|
| CX01 | Expiry of patent term |