CN108426975B - Catalyst activity evaluation device - Google Patents
Catalyst activity evaluation device Download PDFInfo
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- CN108426975B CN108426975B CN201810459489.7A CN201810459489A CN108426975B CN 108426975 B CN108426975 B CN 108426975B CN 201810459489 A CN201810459489 A CN 201810459489A CN 108426975 B CN108426975 B CN 108426975B
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- 239000003054 catalyst Substances 0.000 title claims abstract description 52
- 230000000694 effects Effects 0.000 title claims abstract description 28
- 238000011156 evaluation Methods 0.000 title claims abstract description 26
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims description 31
- 238000000926 separation method Methods 0.000 claims description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 239000010453 quartz Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000010521 absorption reaction Methods 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 238000009834 vaporization Methods 0.000 claims description 12
- 230000008016 vaporization Effects 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000005057 refrigeration Methods 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000011045 prefiltration Methods 0.000 claims description 5
- 238000011049 filling Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 103
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 22
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 16
- 229910002091 carbon monoxide Inorganic materials 0.000 description 16
- 230000006872 improvement Effects 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 4
- 239000006004 Quartz sand Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- ODUCDPQEXGNKDN-UHFFFAOYSA-N Nitrogen oxide(NO) Natural products O=N ODUCDPQEXGNKDN-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/10—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using catalysis
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention belongs to the technical field of catalysts, in particular to a catalyst activity evaluation device, which comprises NH 3 Gas circuit control system, O 2 Gas circuit control system, N 2 Gas circuit control system, SO 2 Gas path control system, NO gas path control system, CO gas path control system and CO 2 Gas path control system, catalytic reaction system, online analysis and detection system and computer control system, NH 3 The gas path control system is directly connected with the catalytic reaction system, O 2 Gas circuit control system, N 2 Gas circuit control system, SO 2 Gas circuit control system, NO gas circuit control system, CO gas circuit control system and CO 2 The gas path control system is connected with the catalytic reaction system sequentially through the total pressure gauge and the mixer, the on-line analysis and detection system is connected with the catalytic reaction system, and the computer control system is used for controlling the cooperation operation of the systems. Compared with the prior art, the invention has safe and stable operation, accurate and reliable test data and high repeatability.
Description
Technical Field
The invention belongs to the technical field of catalysts, and particularly relates to a catalyst activity evaluation device.
Background
Pollutant carbon monoxide (CO), hydrocarbon (HC), nitrogen Oxide (NO) discharged by diesel vehicle X ) And particles and the like seriously harms the health and the ecological environment of human bodies, and the national regulations on the requirements of national emission standards must be met in the service life of diesel vehicles, and the basic principle of controlling the emission of pollutants of the diesel vehicles is to add a tail gas treatment device. For a set of tail gas treatment device, a catalyst is prepared first, and then the catalyst, an auxiliary agent and the like are coated in a honeycomb ceramic carrier. The performance of the catalyst coating in the device is directly related to whether the emission pollutant reaches the standard. A set of experimental evaluation device with perfect, rapid and effective performance in daily experiment research and development is used for screening catalysis with excellent performanceThe catalyst and the effective catalyst coating are also one of the key technologies.
At present, the activity of the catalyst is generally evaluated by adopting a fixed bed experimental reactor, but a plurality of experimental devices are limited to the evaluation experiment of the powder catalyst, and the catalyst coated honeycomb ceramic carrier is not used. Or can be used together, but is influenced by experimental devices, the actual working condition of the engine can not be fully simulated to evaluate the coating effect, so that the performance of the catalyst coating can not be truly reflected, misleading on technological parameters for forming a complete product can exist, and the transition from a laboratory to industrialization is not in front.
Disclosure of Invention
The invention aims at: aiming at the defects of the prior art, the catalyst activity evaluation device is safe and stable in operation, accurate and reliable in test data and high in repeatability.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a catalyst activity evaluation device comprises NH 3 Gas circuit control system, O 2 Gas circuit control system, N 2 Gas circuit control system, SO 2 Gas path control system, NO gas path control system, CO gas path control system and CO 2 Gas circuit control system, catalytic reaction system, online analysis detecting system and computer control system, NH 3 The gas path control system is directly connected with the catalytic reaction system, and the O is 2 Gas circuit control system, N 2 Gas circuit control system, SO 2 Gas path control system, NO gas path control system, CO gas path control system and CO 2 The gas path control system is connected with the catalytic reaction system sequentially through the total pressure gauge and the mixer, the online analysis and detection system is connected with the catalytic reaction system, and the computer control system is used for controlling the cooperation operation of the systems.
As an improvement of the catalyst activity evaluation device of the present invention, the NH 3 Gas circuit control system, O 2 Gas circuit control system, N 2 Gas circuit control systemSaid SO 2 Gas path control system, NO gas path control system, CO gas path control system and CO 2 The gas circuit control system is formed by sequentially connecting a first switch valve, a pre-filter, a first pressure gauge, a pressure reducing valve, a second pressure gauge, a mass flowmeter, a one-way valve and a second switch valve. The first switch valve is used for controlling whether gas enters the pipeline or not; the pre-filter is used for filtering gas impurities; the first pressure gauge is used for detecting whether the air pressure of the air coming out of the air bottle is normal or not; the pressure reducing valve is used for reducing the pressure of the gas; the second pressure gauge displays the air pressure after decompression; the mass flowmeter is used for giving the flow required by the experiment; the one-way valve is used for preventing the air flow from flowing back; the second switch valve is used for controlling whether the gas enters the reaction furnace.
As an improvement of the catalyst activity evaluation device, the catalytic reaction system comprises a water injection chamber, a vaporization chamber, an insulation box, a catalytic reaction furnace, a gas-liquid separation chamber and a refrigeration pump, wherein the water injection chamber, the vaporization chamber, the insulation box, the catalytic reaction furnace and the gas-liquid separation chamber are sequentially connected, and the refrigeration pump and the gas-liquid separation chamber form a loop.
As an improvement of the catalyst activity evaluation device, a water inlet valve is further arranged between the water injection chamber and the vaporization chamber, and a liquid outlet valve is further connected to the liquid output end of the gas-liquid separation chamber.
As an improvement of the catalyst activity evaluation device of the present invention, the NH 3 The air path control system and the mixer are connected with the heat insulation box.
As an improvement of the catalyst activity evaluation device, a quartz tube is arranged in the catalytic reaction furnace, the middle part of the quartz tube is provided with a reaction zone, and a thermocouple is inserted in the position above the reaction zone.
As an improvement of the catalyst activity evaluation device, the outer wall of the catalytic reaction furnace is provided with an upper-stage temperature detector, a middle-stage temperature detector and a lower-stage temperature detector. As the mixed gas enters the catalytic reaction furnace to react, the hot gas diffuses upwards, temperature detectors are respectively arranged at the upper, middle and lower sections of the catalytic reaction furnace, and different temperature raising programs are arranged, so that the upper, middle and lower sections display the same furnace temperature.
As an improvement of the catalyst activity evaluation device, the on-line analysis and detection system is connected with the gas output end of the gas-liquid separation chamber.
As an improvement of the catalyst activity evaluation device, the online analysis and detection system comprises a sampling valve, a flowmeter, a post-filter, a gas detector, a first tail gas absorption bottle and a second tail gas absorption bottle, wherein the sampling valve, the flowmeter and the post-filter are sequentially connected, the gas detector and the first tail gas absorption bottle are both connected with the output end of the post-filter, and the second tail gas absorption bottle is connected with the output end of the gas detector. Wherein, the gas detector selects a nitrogen-oxygen analyzer.
As an improvement of the catalyst activity evaluation device, the on-line analysis and detection system further comprises a vent valve connected between the gas-liquid separation chamber and the second tail gas absorption bottle.
Compared with the prior art, the invention has at least the following advantages:
1) The invention adopts a multi-path sample injection structure mode to simulate the smoke composition of the diesel engine and calculate the given flow required by each gas path control system. Because the activity of the catalyst is related to factors such as gas airspeed, gas flow, catalyst volume and the like, the multiple gas path control systems are all of multi-element design, and the flow can be changed through a mass flowmeter during experiments, and the pressure of the pressure reducing valve enables the experiments to maintain safe and stable experimental environments.
2) The catalytic reaction furnace can be provided with various quartz tubes which are suitable for the shape and the size of the catalyst and are suitable for testing the air pressure, the flow rate, the airspeed and the like according to the shape and the size of various catalyst samples.
3) The invention adopts the nitrogen-oxygen analyzer as the gas detector, the test concentration can reach 0.025ppm, the response time and the lag time are less than 1s, the reaction is rapid, the accuracy is high, and the test data is accurate and reliable. In addition, the nitrogen-oxygen analyzer has the function of heating the sample gas pipeline, can effectively avoid the generation of ammonium salt, prevent unfavorable measuring conditions from happening, and other gas detectors can generate ammonium salt to block the pipeline due to the existence of ammonia, so that the test data is unreliable, and the test device needs to be additionally maintained for long-time use.
4) The computer control system is connected with and used for controlling other systems, and experimental conditions can be given by directly designing programs on a computer, so that automation unmanned is realized, and time and labor are saved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic diagram of a quartz tube according to the present invention.
FIG. 3 is a second schematic view of the structure of the quartz tube according to the present invention.
Wherein: 1-NH 3 Gas circuit control system, 2-O 2 Gas circuit control system, 3-N 2 Gas circuit control system, 4-SO 2 Gas circuit control system, 5-NO gas circuit control system, 6-CO gas circuit control system, 7-CO 2 The system comprises a gas path control system, an 8-catalytic reaction system, a 9-on-line analysis and detection system, a 10-total pressure gauge, an 11-mixer, a 12-first switch valve, a 13-pre-filter, a 14-first pressure gauge, a 15-pressure reducing valve, a 16-second pressure gauge, a 17-mass flowmeter, an 18-one-way valve, a 19-second switch valve, an 81-water injection chamber, an 82-vaporization chamber, an 83-incubator, an 84-catalytic reaction furnace, an 85-gas-liquid separation chamber, an 86-refrigeration pump, an 87-water inlet valve, an 88-liquid outlet valve, a 91-sampling valve, a 92-flowmeter, a 93-post-filter, a 94-gas detector, a 95-first tail gas absorption bottle, a 96-second tail gas absorption bottle, a 97-vent valve, an 841-quartz tube, an 842-reaction zone, an 843-thermocouple, an 844-upper temperature detector, an 845-middle temperature detector and an 846-lower temperature detector.
Detailed Description
The invention will be described in further detail with reference to the following detailed description and the accompanying drawings, but the embodiments of the invention are not limited thereto.
As shown in FIG. 1, a catalyst activity evaluation apparatus includes NH 3 Gas circuit control system 1, O 2 Gas circuit control system 2, N 2 Gas circuit control system 3, SO 2 Gas circuit control system 4, NO gas circuit control system 5, CO gas circuit control system 6, CO 2 Gas path control system 7, catalytic reaction system 8, on-line analysis and detection system 9 and computer control system, NH 3 The gas path control system 1 is directly connected with the catalytic reaction system 8, O 2 Gas circuit control system 2, N 2 Gas circuit control system 3, SO 2 Gas circuit control system 4, NO gas circuit control system 5, CO gas circuit control system 6 and CO 2 The gas circuit control system 7 is connected with the catalytic reaction system 8 through the total pressure gauge 10 and the mixer 11 in sequence, the on-line analysis and detection system 9 is connected with the catalytic reaction system 8, and the computer control system is used for controlling the cooperation operation of all the systems.
Further, NH 3 Gas circuit control system 1, O 2 Gas circuit control system 2, N 2 Gas circuit control system 3, SO 2 Gas circuit control system 4, NO gas circuit control system 5, CO gas circuit control system 6 and CO 2 The gas circuit control system 7 is formed by sequentially connecting a first switch valve 12, a pre-filter 13, a first pressure gauge 14, a pressure reducing valve 15, a second pressure gauge 16, a mass flowmeter 17, a one-way valve 18 and a second switch valve 19.
Further, the catalytic reaction system 8 includes a water injection chamber 81, a vaporization chamber 82, an insulation box 83, a catalytic reaction furnace 84, a gas-liquid separation chamber 85, and a refrigeration pump 86, wherein the water injection chamber 81, the vaporization chamber 82, the insulation box 83, the catalytic reaction furnace 84, and the gas-liquid separation chamber 85 are sequentially connected, and the refrigeration pump 86 and the gas-liquid separation chamber 85 form a loop.
Further, a water inlet valve 87 is further arranged between the water injection chamber 81 and the vaporization chamber 82, and a liquid outlet valve 88 is further connected to the liquid output end of the gas-liquid separation chamber 85.
Further, NH 3 The air path control system 1 and the mixer 11 are both connected with an incubator 83.
Further, a quartz tube 841 is disposed in the catalytic reactor 84, a reaction area 842 is disposed in the middle of the quartz tube 841, and a thermocouple 843 is inserted above the reaction area 842. As shown in fig. 2, when the catalyst is in a powder state, a quartz sand for carrying the powder catalyst is provided in the middle of a quartz tube 841 inside the catalytic reactor 84. The quartz sand with catalyst is in the middle of quartz tube 841, and the quartz tube 841 wall will adsorb a large amount of powder when filling catalyst, this will bring error when evaluating quantitative catalyst activity, therefore in the position near quartz sand upper portion, quartz tube 841 side has a little branch pipe, catalyst powder is packed from the side port, the design of side branch pipe has avoided the measurement error that brings because quartz tube 841 adsorbs the catalyst, has packed the catalyst, this branch pipe port is sealed with the flange. As shown in fig. 3, when the catalyst is in the form of a small honeycomb ceramic carrier coated with a catalyst coating, the middle of the quartz tube 841 in the catalytic reactor 84 has 3 small pits as support points for the honeycomb ceramic cylinder. A blank cylinder is placed above the cylinder coated with the catalyst coating, so that gas uniformly enters the honeycomb ceramic cylinder coated with the catalyst coating, the reaction is uniform and sufficient, and the influence on the test result due to the large blowing-off of the coating by the gas flow of the gas inlet is avoided.
Further, the outer wall of the catalytic reactor 84 is provided with an upper stage temperature detector 844, a middle stage temperature detector 845, and a lower stage temperature detector 846.
Further, the on-line analysis and detection system 9 is connected to a gas output end of the gas-liquid separation chamber 85.
Further, the online analysis and detection system 9 includes a sampling valve 91, a flow meter 92, a post-filter 93, a gas detector 94, a first tail gas absorbing bottle 95 and a second tail gas absorbing bottle 96, the sampling valve 91, the flow meter 92 and the post-filter 93 are sequentially connected, the gas detector 94 and the first tail gas absorbing bottle 95 are both connected to the output end of the post-filter 93, and the second tail gas absorbing bottle 96 is connected to the output end of the gas detector 94.
Further, the on-line analysis and detection system 9 further includes a vent valve 97, and the vent valve 97 is connected between the gas-liquid separation chamber 85 and the second tail gas absorbing bottle 96.
The working process of the invention is as follows:
1) The experimental water is quantitatively injected into the vaporization chamber 82 through the water injection chamber 81 to be gasified, so as to generateWater vapor, CO 2 、O 2 、N 2 、NO、SO 2 And CO gas are mixed in a mixing chamber to generate mixed gas, water vapor, mixed gas and NH after passing through each element of each gas path control system 3 The three are converged in the heat preservation box 83 and enter the catalytic reaction furnace 84 together for catalytic reaction;
2) The gas after the catalytic reaction enters a gas-liquid separation chamber 85 for gas-liquid separation, the gas-liquid separation chamber 85 is circularly cooled by a refrigeration pump 86, the temperature is set to be normal temperature to minus 20 ℃, a liquid part is discharged downwards from a liquid output end, the gas part is separated into two parts after coming out from the gas output end, and one part enters a second tail gas absorption bottle 96 through a discharge valve 97 for purification and is discharged into the air; the other part sequentially passes through a sampling valve 91, a flowmeter 92 and a post-filter 93, the filtering is performed first, part of the gas filtered by the post-filter 93 is purified by a first tail gas absorption bottle 95 and then is discharged into the air, and the other part of the gas enters a gas detector 94 for analysis and detection, and after the detection is finished, the gas enters a second tail gas absorption bottle 96 and is purified and then is discharged into the air.
It should be noted that, in the above process, the computer control system mainly controls the temperature programming of the catalytic reaction furnace 84, and the operating conditions of the vaporization chamber 82, the incubator 83, the mass flowmeter 17, etc., that is, the conditions required to be given in the experiment are all controlled on the computer control system, and through the preprogramming, the full automation and unmanned operation of the test are realized, and finally the relevant data obtained through analysis and detection are automatically generated in excel through software.
Variations and modifications of the above embodiments will occur to those skilled in the art to which the invention pertains from the foregoing disclosure and teachings. Therefore, the present invention is not limited to the above-described embodiments, but is intended to be capable of modification, substitution or variation in light thereof, which will be apparent to those skilled in the art in light of the present teachings. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present invention in any way.
Claims (8)
1. A catalyst activity evaluation device, characterized in that: the system comprises an NH3 gas circuit control system, an O2 gas circuit control system, an N2 gas circuit control system, an SO2 gas circuit control system, an NO gas circuit control system, a CO2 gas circuit control system, a catalytic reaction system, an on-line analysis and detection system and a computer control system; the catalytic reaction system comprises a water injection chamber, a vaporization chamber, an insulation box, a catalytic reaction furnace, a gas-liquid separation chamber and a refrigeration pump, wherein the water injection chamber, the vaporization chamber, the insulation box, the catalytic reaction furnace and the gas-liquid separation chamber are sequentially connected, and the refrigeration pump and the gas-liquid separation chamber form a loop; the catalytic reaction furnace is internally provided with a quartz tube, the middle part of the quartz tube is provided with a reaction zone, a thermocouple is inserted in the position above the reaction zone, a branch pipe serving as a catalyst powder filling inlet is arranged on the side surface of the quartz tube, and a concave point serving as a honeycomb ceramic cylinder supporting point is arranged in the middle of the quartz tube; the on-line analysis and detection system is connected with the catalytic reaction system, and the computer control system is used for controlling the cooperation operation of the systems.
2. The catalyst activity evaluation device according to claim 1, wherein: the NH3 gas circuit control system, the O2 gas circuit control system, the N2 gas circuit control system, the SO2 gas circuit control system, the NO gas circuit control system, the CO gas circuit control system and the CO2 gas circuit control system are formed by sequentially connecting a first switch valve, a pre-filter, a first pressure gauge, a pressure reducing valve, a second pressure gauge, a mass flowmeter, a one-way valve and a second switch valve.
3. The catalyst activity evaluation device according to claim 1, wherein: a water inlet valve is further arranged between the water injection chamber and the vaporization chamber, and a liquid outlet valve is further connected to the liquid output end of the gas-liquid separation chamber.
4. The catalyst activity evaluation device according to claim 1, wherein: the NH3 gas circuit control system and the mixer are both connected with the incubator.
5. The catalyst activity evaluation device according to claim 1, wherein: the outer wall of the catalytic reaction furnace is provided with an upper section temperature detector, a middle section temperature detector and a lower section temperature detector.
6. The catalyst activity evaluation device according to claim 1, wherein: the on-line analysis and detection system is connected with the gas output end of the gas-liquid separation chamber.
7. The catalyst activity evaluation device according to claim 6, wherein: the on-line analysis and detection system comprises a sampling valve, a flowmeter, a post-filter, a gas detector, a first tail gas absorption bottle and a second tail gas absorption bottle, wherein the sampling valve, the flowmeter and the post-filter are sequentially connected, the gas detector and the first tail gas absorption bottle are connected to the output end of the post-filter, and the second tail gas absorption bottle is connected to the output end of the gas detector.
8. The catalyst activity evaluation device according to claim 7, wherein: the online analysis and detection system further comprises a vent valve, and the vent valve is connected between the gas-liquid separation chamber and the second tail gas absorption bottle.
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| CN202649187U (en) * | 2012-06-15 | 2013-01-02 | 北京恒德水沐土地修复环保科技有限公司 | Activity evaluation device of catalyst |
| CN103263845A (en) * | 2013-06-08 | 2013-08-28 | 厦门大学 | Simultaneous desulfation, denitration and mercury removal device |
| CN203672863U (en) * | 2014-01-20 | 2014-06-25 | 中国科学院宁波城市环境研究中心（筹） | Device for evaluating flue gas denitration catalyst activity |
| CN203870075U (en) * | 2014-06-05 | 2014-10-08 | 北京国电清新环保技术股份有限公司 | Active coke desulfurization and denitration performance characterization test device |
| CN204044136U (en) * | 2014-09-15 | 2014-12-24 | 青海省化工设计研究院有限公司 | A kind of experimental provision evaluated for SCR denitrating flue gas honeybee shape catalyst activity |
| CN204731216U (en) * | 2015-05-13 | 2015-10-28 | 湖北大清科技有限公司 | SCR catalyst active testing system |
| CN204903485U (en) * | 2015-08-14 | 2015-12-23 | 广东电网有限责任公司电力科学研究院 | Two reacting furnace activity detection devices of SCR denitration catalyst |
| CN105628858A (en) * | 2016-03-21 | 2016-06-01 | 浙江海亮环境材料有限公司 | Catalyst performance testing system |
| CN205861701U (en) * | 2016-06-29 | 2017-01-04 | 大唐南京环保科技有限责任公司 | Denitrating catalyst Activity determination evaluating apparatus |
| CN206235606U (en) * | 2016-11-14 | 2017-06-09 | 中瑞天净环保科技（天津）有限公司 | A kind of evaluating catalyst system |
| CN206756764U (en) * | 2017-05-22 | 2017-12-15 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | A kind of performance characterization device of catalyst for denitrating flue gas |
| CN107855002A (en) * | 2017-11-28 | 2018-03-30 | 石河子大学 | A kind of method and its device of honeycomb fashion low-temperature denitration |
| CN208255159U (en) * | 2018-05-15 | 2018-12-18 | 东莞诺维新材料科技有限公司 | A kind of catalyst activity evaluating apparatus |
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