CN208255159U - A kind of catalyst activity evaluating apparatus - Google Patents
A kind of catalyst activity evaluating apparatus Download PDFInfo
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- CN208255159U CN208255159U CN201820716010.9U CN201820716010U CN208255159U CN 208255159 U CN208255159 U CN 208255159U CN 201820716010 U CN201820716010 U CN 201820716010U CN 208255159 U CN208255159 U CN 208255159U
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Abstract
The utility model belongs to catalyst technical field, especially a kind of catalyst activity evaluating apparatus, including NH3Air-path control system, O2Air-path control system, N2Air-path control system, SO2Air-path control system, NO air-path control system, CO air-path control system, CO2Air-path control system, catalytic reaction system, on-line analysis detection system and computer control system, NH3Air-path control system is directly connect with catalytic reaction system, O2Air-path control system, N2Air-path control system, SO2Air-path control system, NO air-path control system, CO air-path control system and CO2Air-path control system passes sequentially through gross pressure table and mixer is connect with catalytic reaction system, and on-line analysis detection system is connect with catalytic reaction system, and computer control system is used to control the cooperation operation of each system.Compared with the prior art, the utility model operational safety and stablize, test data is accurate and reliable, and repeatability is high.
Description
Technical field
The utility model belongs to catalyst technical field more particularly to a kind of catalyst activity evaluating apparatus.
Background technique
Pollutant carbon monoxide (CO), the hydrocarbon (HC), nitrogen oxides (NO of emission of diesel engineX) and particle etc. it is tight
It is detrimental to health again and ecological environment, national regulation diesel vehicle is in service life, it is necessary to meet national emission standard requirement,
The basic principle of control diesel vehicle pollutant emission at present is to install exhaust gas processing device additional.For a set of exhaust gas processing device, need
Catalyst is first prepared, then catalyst and auxiliary agent etc. are coated in honeycomb ceramic carrier.Catalyst coat performance is straight in device
Connect be related to discharge pollutants it is whether up to standard.A set of perfect performance, quickly and effectively experimental evaluation device in routine experimentation research and development,
Carry out the excellent catalyst of screenability and effective catalyst coat is also one of key technology.
It is directed to catalyst at present, active size generally uses fixture bed experiment reactor to be evaluated, but many real
Experiment device is limited only to the evaluation experimental of fine catalyst, and the honeycomb ceramic carrier for coating catalyst coat is not benefited from.
Or can be used together, but influenced by experimental provision, cannot adequately simulated engine actual condition carry out coating result assessment,
Therefore it can not really reflect catalyst coat performance, to forming the technological parameter of a complete product there may be misleading,
Laboratory is caused to be transitioned into industrialization stagnation.
Utility model content
The purpose of this utility model is that: in view of the deficiencies of the prior art, and a kind of catalyst activity evaluating apparatus is provided,
Operational safety and stablize, test data is accurate and reliable, and repeatability is high.
To achieve the goals above, the utility model uses following technical scheme:
A kind of catalyst activity evaluating apparatus, including NH3Air-path control system, O2Air-path control system, N2Gas circuit control system
System, SO2Air-path control system, NO air-path control system, CO air-path control system, CO2Air-path control system, catalytic reaction system,
On-line analysis detection system and computer control system, the NH3Air-path control system directly connects with the catalytic reaction system
It connects, the O2Air-path control system, the N2Air-path control system, the SO2Air-path control system, NO gas circuit control system
System, the CO air-path control system and the CO2Air-path control system passes sequentially through gross pressure table and mixer and urges with described
Change reaction system connection, the on-line analysis detection system is connect with the catalytic reaction system, the computer control system
Cooperation for controlling each system is run.
As a kind of improvement of catalyst activity evaluating apparatus described in the utility model, the NH3Air-path control system,
The O2Air-path control system, the N2Air-path control system, the SO2Air-path control system, the NO air-path control system,
The CO air-path control system and the CO2Air-path control system by first switch valve, front filter, first pressure gauge, subtract
Pressure valve, second pressure gauge, mass flowmenter, check valve and second switch valve are in turn connected to form.Wherein, first switch valve is to use
Whether enter pipeline in control gas;Front filter is for filtering gaseous impurity;First pressure gauge comes out for detecting from gas cylinder
Whether the air pressure of gas is normal;Pressure reducing valve is to gas decompression;Air pressure after second pressure gauge display decompression;Mass flowmenter is used
In the flow for giving experiment needs;Check valve is for preventing gas flow counterflow;Second switch valve is for controlling whether gas enters instead
Answer furnace.
As a kind of improvement of catalyst activity evaluating apparatus described in the utility model, the catalytic reaction system includes
Water injection room, vaporizing chamber, incubator, catalysis reacting furnace, gas-liquid separation chamber and refrigeration pump, the water injection room, the vaporizing chamber,
The incubator, the catalysis reacting furnace and the gas-liquid separation chamber are sequentially connected, the refrigeration pump and the gas-liquid separation chamber
Forming circuit.
As a kind of improvement of catalyst activity evaluating apparatus described in the utility model, the water injection room and the vapour
Change and be additionally provided with inlet valve between room, the fluid output port of the gas-liquid separation chamber is also connected with liquid valve door.
As a kind of improvement of catalyst activity evaluating apparatus described in the utility model, the NH3Air-path control system
It is connect with the incubator with the mixer.
As a kind of improvement of catalyst activity evaluating apparatus described in the utility model, set inside the catalysis reacting furnace
It is equipped with quartz ampoule, reaction zone is set as in the middle part of the quartz ampoule, the reaction zone is inserted with thermocouple with upper bit.
As a kind of improvement of catalyst activity evaluating apparatus described in the utility model, the outer wall of the catalysis reacting furnace
It is provided with upper section temperature detector, middle section temperature detector and lower section temperature detector.Since mixed gas enters catalysis
When reacting furnace reacts, hot gas is diffused up, and therefore, in catalysis reacting furnace upper, middle and lower, temperature detector is respectively set in section,
And different temperature programs are set, so that upper, middle and lower segment is shown that furnace temperature is the same.
As a kind of improvement of catalyst activity evaluating apparatus described in the utility model, the on-line analysis detection system
It is connect with the gas output end of the gas-liquid separation chamber.
As a kind of improvement of catalyst activity evaluating apparatus described in the utility model, the on-line analysis detection system
Including sampling valve, flowmeter, after-filter, gas detecting instrument, the first tail gas absorption bottle and the second tail gas absorption bottle, the sampling
Valve, the flowmeter and the after-filter are sequentially connected, and the gas detecting instrument and the first tail gas absorption bottle are all connected with
In the after-filter output end, the second tail gas absorption bottle is connected to the output end of the gas detecting instrument.Wherein, gas
Detector selects nitrogen oxygen analyzer.
As a kind of improvement of catalyst activity evaluating apparatus described in the utility model, the on-line analysis detection system
It further include blow valve, the blow valve is connected between the gas-liquid separation chamber and the second tail gas absorption bottle.
Compared with the prior art, the utility model at least has the following advantages:
1) the utility model uses the frame mode of multichannel sample introduction, and simulation diesel engine flue gas composition calculates each gas circuit control
System processed needs given flow.Active and gas space velocity, gas flow, catalyst volume due to catalyst etc. are because being known as
It closes, multiple air-path control systems of the utility model are multicomponent designs, and when experiment can change flow by mass flowmenter
Size, pressure reducing valve decompression make experiment maintain safety and stablize experimental situation;
2) the catalysis reacting furnace in the utility model can for all kinds of catalyst samples form and size and load onto suitable
Close all kinds of quartz ampoules of form, size and suitable measuring air pressure, flow and air speed of catalyst etc.;
3) for the utility model using nitrogen oxygen analyzer as gas detecting instrument, test concentrations can achieve 0.025ppm,
Response time and lag time are both less than 1s, are swift in response, accuracy height, and test data is accurate and reliable.In addition, nitrogen oxygen analyzer
With the function of being heated to sample gas pipeline, the generation of ammonium salt can be effectively avoided, prevent the feelings for being unfavorable for measurement
Condition occurs, and other gas detecting instruments may generate ammonium salt blockage pipeline because of the presence of ammonia, keep test data unreliable, when long
Between using needing additionally to go to maintain to experimental provision;
4) computer control system connects and is used to control other each systems, can directly design on computers program to
Experiment condition is given, realizes that automation is unmanned, it is time saving and energy saving.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is one of the structural schematic diagram of quartz ampoule in the utility model.
Fig. 3 is the second structural representation of quartz ampoule in the utility model.
Wherein: 1-NH3Air-path control system, 2-O2Air-path control system, 3-N2Air-path control system, 4-SO2Gas circuit control
System, 5-NO air-path control system, 6-CO air-path control system, 7-CO2Air-path control system, 8- catalytic reaction system, 9- exist
Line analysis detection system, 10- gross pressure table, 11- mixer, 12- first switch valve, 13- front filter, 14- first pressure gauge,
15- pressure reducing valve, 16- second pressure gauge, 17- mass flowmenter, 18- check valve, 19- second switch valve, 81- water injection room, 82-
Vaporizing chamber, 83- incubator, 84- are catalyzed reacting furnace, 85- gas-liquid separation chamber, 86- refrigeration pump, 87- inlet valve, 88- liquid valve
Door, 91- sampling valve, 92- flowmeter, 93- after-filter, 94- gas detecting instrument, 95- the first tail gas absorption bottle, the second tail of 96-
Aspiration bottle, 97- blow valve, 841- quartz ampoule, 842- reaction zone, 843- thermocouple, 844- upper section temperature detector, in 845-
Section temperature detector, 846- lower section temperature detector.
Specific embodiment
With reference to embodiment and Figure of description, the utility model is described in further detail, but this
The embodiment of utility model is not limited to this.
As shown in Figure 1, a kind of catalyst activity evaluating apparatus, including NH3Air-path control system 1, O2Air-path control system 2,
N2Air-path control system 3, SO2Air-path control system 4, NO air-path control system 5, CO air-path control system 6, CO2Gas circuit control system
System 7, catalytic reaction system 8, on-line analysis detection system 9 and computer control system, NH3Air-path control system 1 directly with urge
Change reaction system 8 to connect, O2Air-path control system 2, N2Air-path control system 3, SO2Air-path control system 4, NO gas circuit control system
System 5, CO air-path control system 6 and CO2Air-path control system 7 passes sequentially through gross pressure table 10 and mixer 11 and reacts with catalysis
System 8 connects, and on-line analysis detection system 9 is connect with catalytic reaction system 8, and computer control system is for controlling each system
Cooperation operation.
Further, NH3Air-path control system 1, O2Air-path control system 2, N2Air-path control system 3, SO2Gas circuit control
System 4, NO air-path control system 5, CO air-path control system 6 and CO2Air-path control system 7 is by first switch valve 12, preceding mistake
Filter 13, first pressure gauge 14, pressure reducing valve 15, second pressure gauge 16, mass flowmenter 17, check valve 18 and second switch valve 19
It is in turn connected to form.
Further, catalytic reaction system 8 include water injection room 81, vaporizing chamber 82, incubator 83, catalysis reacting furnace 84,
Gas-liquid separation chamber 85 and refrigeration pump 86, water injection room 81, vaporizing chamber 82, incubator 83, catalysis reacting furnace 84 and gas-liquid separation chamber
85 are sequentially connected, and refrigeration pump 86 and gas-liquid separation chamber 85 are formed into a loop.
Further, inlet valve 87, the liquid of gas-liquid separation chamber 85 are additionally provided between water injection room 81 and vaporizing chamber 82
Body output end is also connected with liquid valve door 88.
Further, NH3Air-path control system 1 and mixer 11 are connect with incubator 83.
Further, catalysis reacting furnace 84 is internally provided with quartz ampoule 841, and the middle part of quartz ampoule 841 is set as reaction zone
842, reaction zone 842 is inserted with thermocouple 843 with upper bit.As shown in Fig. 2, when catalyst is pulverulence, catalysis reaction
Have in the middle part of quartz ampoule 841 inside furnace 84 in the quartz sand for carrying fine catalyst.In the quartz sand of carried catalyst in quartz
841 middle part of pipe, 841 tube wall of quartz ampoule can adsorb a large amount of powder when inserting catalyst, this is when evaluating quantitative catalyst activity
Error can be brought, therefore in the position close to quartz sand top, there is a smaller branch pipe in 841 side of quartz ampoule, and catalyst fines are from side
Mouthful be packed into, the design of side branch avoid because quartz ampoule 841 adsorption catalyst due to bring measurement error, loaded catalyst,
The mouth of pipe is sealed up with flange.As shown in figure 3, when catalyst is the honeycomb ceramic carrier sample form for coating catalyst coat
When, be catalyzed reacting furnace 84 in quartz ampoule 841 in the middle part of have 3 small concave points, the supporting point as ceramic honey comb cylindrical body.It is coating
In the cylindrical body for placing a blank above the cylindrical body of catalyst coat, make gas even into the bee for being coated with catalyst coat
Nest ceramic cylinder keeps reaction uniformly abundant, also avoids influencing test result because air inlet stream blows off coating greatly.
Further, the outer wall for being catalyzed reacting furnace 84 is provided with upper section temperature detector 844, middle section temperature detector 845
With lower section temperature detector 846.
Further, on-line analysis detection system 9 is connect with the gas output end of gas-liquid separation chamber 85.
Further, on-line analysis detection system 9 includes sampling valve 91, flowmeter 92, after-filter 93, gas detecting instrument
94, the first tail gas absorption bottle 95 and the second tail gas absorption bottle 96, sampling valve 91, flowmeter 92 and after-filter 93 are sequentially connected,
Gas detecting instrument 94 and the first tail gas absorption bottle 95 are all connected to 93 output end of after-filter, and the second tail gas absorption bottle 96 is connected to
The output end of gas detecting instrument 94.
Further, on-line analysis detection system 9 further includes blow valve 97, and blow valve 97 is connected to 85 He of gas-liquid separation chamber
Between second tail gas absorption bottle 96.
The course of work of the utility model is as follows:
1) gasification will be carried out by water injection room 81 in experimental water calibrated shot to vaporizing chamber 82 and generate vapor, CO2、
O2、N2、NO、SO2It is mixed after each element of respective air-path control system in mixing chamber with CO gas and generates mixed gas, water
Steam, mixed gas and NH3Three, which converges in incubator 83 and enters in catalysis reacting furnace 84 together, carries out catalysis reaction;
2) gas after completing catalysis reaction enters gas-liquid separation chamber 85 and carries out gas-liquid separation, and gas-liquid separation chamber 85 is by freezing
Pump 86 circulating coolings, temperature setting is room temperature ~ -20 DEG C, and liquid portion is vented down by fluid output port, and gas part is from gas
Body output end is divided into two parts after coming out, a portion is being arranged after entering the purification of the second tail gas absorption bottle 96 by blow valve 97
Enter in air;Another part passes sequentially through sampling valve 91, flowmeter 92 and after-filter 93, is first filtered, in after-filter
93 be filtered after gas some by the first tail gas absorption bottle 95 purification after be discharged into air, some enter gas
Detector 94 carries out analysis detection, is discharged into air after the purification of the second tail gas absorption bottle 96 is entered after detection.
It should be noted that in the above process, computer control system mainly controls the program of catalysis reacting furnace 84
Heating, the operating conditions such as vaporizing chamber 82, incubator 83 and mass flowmenter 17, i.e. experiment need given condition in computer
It is manipulated in control system, and by pre-programmed, realizes the full automation and Unmanned operation of test, ultimate analysis detection
Obtained related data is automatically generated by software in excel.
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and is modified.Therefore, the utility model is not limited to above-mentioned specific embodiment, all this field skills
It is practical new that art personnel any conspicuous improvement made on the basis of the utility model, replacement or modification belong to this
The protection scope of type.In addition, these terms are intended merely to facilitate although using some specific terms in this specification
It is bright, any restrictions are not constituted to the utility model.
Claims (10)
1. a kind of catalyst activity evaluating apparatus, it is characterised in that: including NH3Air-path control system, O2Air-path control system, N2
Air-path control system, SO2Air-path control system, NO air-path control system, CO air-path control system, CO2Air-path control system is urged
Change reaction system, on-line analysis detection system and computer control system, the NH3Air-path control system directly with the catalysis
Reaction system connection, the O2Air-path control system, the N2Air-path control system, the SO2Air-path control system, the NO
Air-path control system, the CO air-path control system and the CO2Air-path control system passes sequentially through gross pressure table and mixing
Device is connect with the catalytic reaction system, and the on-line analysis detection system is connect with the catalytic reaction system, the calculating
Machine control system is used to control the cooperation operation of each system.
2. catalyst activity evaluating apparatus according to claim 1, it is characterised in that: the NH3Air-path control system, institute
State O2Air-path control system, the N2Air-path control system, the SO2Air-path control system, the NO air-path control system, institute
State CO air-path control system and the CO2Air-path control system is by first switch valve, front filter, first pressure gauge, decompression
Valve, second pressure gauge, mass flowmenter, check valve and second switch valve are in turn connected to form.
3. catalyst activity evaluating apparatus according to claim 1, it is characterised in that: the catalytic reaction system includes water
Injection room, vaporizing chamber, incubator, catalysis reacting furnace, gas-liquid separation chamber and refrigeration pump, the water injection room, the vaporizing chamber, institute
It states incubator, the catalysis reacting furnace and the gas-liquid separation chamber to be sequentially connected, the refrigeration pump and gas-liquid separation chamber's shape
At circuit.
4. catalyst activity evaluating apparatus according to claim 3, it is characterised in that: the water injection room and the vaporization
Inlet valve is additionally provided between room, the fluid output port of the gas-liquid separation chamber is also connected with liquid valve door.
5. catalyst activity evaluating apparatus according to claim 3, it is characterised in that: the NH3Air-path control system and institute
Mixer is stated to connect with the incubator.
6. catalyst activity evaluating apparatus according to claim 3, it is characterised in that: setting inside the catalysis reacting furnace
There is quartz ampoule, reaction zone is set as in the middle part of the quartz ampoule, the reaction zone is inserted with thermocouple with upper bit.
7. catalyst activity evaluating apparatus according to claim 3, it is characterised in that: the outer wall of the catalysis reacting furnace is set
It is equipped with upper section temperature detector, middle section temperature detector and lower section temperature detector.
8. catalyst activity evaluating apparatus according to claim 3, it is characterised in that: the on-line analysis detection system with
The gas output end of the gas-liquid separation chamber connects.
9. catalyst activity evaluating apparatus according to claim 8, it is characterised in that: the on-line analysis detection system packet
Include sampling valve, flowmeter, after-filter, gas detecting instrument, the first tail gas absorption bottle and the second tail gas absorption bottle, the sampling
Valve, the flowmeter and the after-filter are sequentially connected, and the gas detecting instrument and the first tail gas absorption bottle are all connected with
In the after-filter output end, the second tail gas absorption bottle is connected to the output end of the gas detecting instrument.
10. catalyst activity evaluating apparatus according to claim 9, it is characterised in that: the on-line analysis detection system
It further include blow valve, the blow valve is connected between the gas-liquid separation chamber and the second tail gas absorption bottle.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CN109799182A (en) * | 2018-12-26 | 2019-05-24 | 中自环保科技股份有限公司 | A kind of natural gas automotive catalyst quick aging device and its application method |
-
2018
- 2018-05-15 CN CN201820716010.9U patent/CN208255159U/en active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CN109799182A (en) * | 2018-12-26 | 2019-05-24 | 中自环保科技股份有限公司 | A kind of natural gas automotive catalyst quick aging device and its application method |
CN109799182B (en) * | 2018-12-26 | 2021-08-20 | 中自环保科技股份有限公司 | Rapid aging device for natural gas vehicle catalyst and application method thereof |
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