CN110044754A - A kind of wear-resistant experimental provision of honeycomb type denitrification catalyst and experimental method - Google Patents
A kind of wear-resistant experimental provision of honeycomb type denitrification catalyst and experimental method Download PDFInfo
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- CN110044754A CN110044754A CN201910225420.2A CN201910225420A CN110044754A CN 110044754 A CN110044754 A CN 110044754A CN 201910225420 A CN201910225420 A CN 201910225420A CN 110044754 A CN110044754 A CN 110044754A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 43
- 238000002474 experimental method Methods 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 36
- 238000005303 weighing Methods 0.000 claims abstract description 14
- 238000005299 abrasion Methods 0.000 claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 20
- 210000003298 dental enamel Anatomy 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 8
- 230000005484 gravity Effects 0.000 abstract description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000013589 supplement Substances 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
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/565—Investigating resistance to wear or abrasion of granular or particulate material
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The present invention relates to a kind of wear-resistant experimental provision of honeycomb type denitrification catalyst and experimental methods, are mainly used for the experimental provision and method of the denitrating catalyst physicochemical property test of nitrogenous polluted gas.The present invention includes blower, venturi convergence device, cyclone separator, sample bin, comparison storehouse, screw feeder, hopper, weighing device and bag filter；Blower is connect with venturi convergence device, venturi convergence device is connect with cyclone separator, weighing device is mounted on the lower part of cyclone separator, the top of cyclone separator is connect with bag filter, sample bin and comparison storehouse are connect with venturi convergence device, screw feeder is connect with sample bin, and hopper is connect with screw feeder.The wear-resistant experimental provision of the honeycomb type denitrification catalyst and experimental method are enough simulated in actual catalyst operation, the wear working condition of honeycomb catalyst, it eliminates abrasion material and differentiated abrasion is generated to catalyst sample difference stress surface due to being affected by gravity, influence the accuracy of wear resistance test.
Description
Technical field
The present invention relates to a kind of wear-resistant experimental provision of honeycomb type denitrification catalyst and experimental methods, are mainly used for nitrogenous dirt
Contaminate the experimental provision and method of the denitrating catalyst physicochemical property test of gas.
Background technique
NOxIt is to cause one of Air Pollutants of nuisances such as acid rain and haze, thermal power generation corporations and industrial pot
Furnace is typical NO using enterprisexGas generates source.China is to NOxThe discharge of gas has stringent professional standard and country
Standard, and selective catalytic reduction SCR(Selective Catalytic Reduction) denitration technology be domestic and international application most
It is more, remove the major technique of nitrogen oxides in effluent.Core of the catalyst as SCR denitration process, is broadly divided into honeycomb fashion and urges
Agent, flat catalyst and corrugated plate dst catalyst three classes, wherein cellular catalyst is applied at most at home, it wear-resistant
Damage physicochemical property directly affects the denitration efficiency and operation conditions of flue gas denitrification system.
It is mainly at present that patent CN204630873 " urge by honeycomb fashion for the experimental detection device of honeycomb type denitrification catalyst
The wear-resistant evaluating apparatus of agent " in introduce device and its similar device.Experimental bench in these devices is that level is built,
When carrying out the wear-resistant test of catalyst, abrasion material is affected by gravity, and can cause biggish abrasion inclined to catalyst upper and lower surface
Difference, cannot well catalysts wear resistance.Secondly, the abrasion material used is thinner grit material, and
Entire experiment porch is in barotropic state, can cause environmental pollution in this way.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and provide a kind of reasonable in design
The wear-resistant experimental provision of honeycomb type denitrification catalyst and experimental method.
Technical solution used by the present invention solves the above problems is: the wear-resistant experiment dress of the honeycomb type denitrification catalyst
Set, design feature is: including blower, venturi convergence device, cyclone separator, sample bin, comparison storehouse, screw feeder,
Hopper, weighing device and bag filter；The blower is connect with venturi convergence device, the venturi convergence device and whirlwind point
It is connected from device, the weighing device is mounted on the lower part of cyclone separator, the top of the cyclone separator and bag filter
Connection, the sample bin and comparison storehouse are connect with venturi convergence device, and the screw feeder is connect with sample bin, the material
Case is connect with screw feeder.
Further, it is separately installed with No.1 on the sample bin and comparison storehouse and can open sealing device and No. two and can open
Sealing device.
Further, further include air supply tube, pipeline, converge pipeline, containing pipe material, clean wind pipe, feeding lines and fine ash pipe
Road；The blower is connect with venturi convergence device by air supply tube, and the venturi convergence device and cyclone separator pass through pipeline
Connection, the cyclone separator are connect with bag filter by fine ash pipeline, one end of the sample bin and the one of comparison storehouse
End is connect with venturi convergence device by converging pipeline, and the other end of the sample bin and the other end in comparison storehouse are connected separately with
Containing pipe material and clean wind pipe, the screw feeder is connect with containing pipe material, and the hopper and screw feeder pass through feed pipe
Road connection.
Further, No.1 regulating valve is installed on the air supply tube, it is described containing being equipped with No. two regulating valves on pipe material
With No.1 block-resistant type difference gauge, No. three regulating valves and No. two block-resistant type difference gauges are installed on the clean wind pipe.
Further, No. two regulating valves, screw feeder, No.1 block-resistant type difference gauge and sample bin are along air-flow side
To pass sequentially through containing pipe material connect, No. three regulating valves, No. two block-resistant type difference gauges and comparison storehouse along airflow direction according to
It is secondary to be connected by clean wind pipe.
Further, the entrance gradually reducing pipeline of the venturi convergence device is connect with air supply tube, the venturi convergence device
Outlet flaring pipeline connect with pipeline, the middle part trunnion of the venturi convergence device is connect with pipeline is converged.
Further, the weighing device is mounted on the bottom of cyclone separator, the fine ash pipeline and cyclone separator
Top connection.
Further, another technical purpose of the invention is to provide a kind of wear-resistant experiment of honeycomb type denitrification catalyst
The experimental method of device.
Above-mentioned technical purpose of the invention technical scheme is that.
A kind of experimental method of the wear-resistant experimental provision of honeycomb type denitrification catalyst, it is characterized in that: the experimental method
As follows: opening No.1, which can open sealing device and No. two, respectively can open sealing device, sample is put into sample bin, by comparative sample
Product are put into comparison storehouse, and sealing device can be opened and seal by covering No.1 respectively and can opening sealing device and No. two；Open No.1 tune
After saving valve, No. two regulating valves and No. three regulating valves, blower is opened；Under the suction function that venturi convergence device generates, air point
Pipe material and clean wind pipe Jin Ru not contained, according to the registration of No.1 block-resistant type difference gauge and No. two block-resistant type difference gauges, adjust No. two
The aperture of regulating valve and No. three regulating valves makes to reach requirement of experiment by the wind speed of sample bin and comparison storehouse, is then turned on spiral
Dispenser makes experiment abrasion material carry out wear test to sample by entering sample bin containing pipe material；It wears material and passes through sample
It collects in and converges in pipeline together with the air by comparison storehouse behind product storehouse, subsequently into venturi convergence device, then pass through pipeline
Cyclone separator, fine ash pipeline and bag filter are passed sequentially through, wherein biggish particle falls into title by cyclone collection
Refitting is weighed in setting.
Further, the middle part trunnion of the venturi convergence device is negative pressure with pipeline junction is converged.
Further, the elbow for converging pipeline, venturi convergence device trunnion at, using plating enamel or anti-wear
Treatment process.
Compared with prior art, the invention has the following advantages that the wear-resistant experimental provision of the honeycomb type denitrification catalyst and reality
Proved recipe method is enough simulated in actual catalyst operation, the wear working condition of honeycomb catalyst, eliminates abrasion material due to being affected by gravity
Differentiated abrasion is generated to catalyst sample difference stress surface, influences the accuracy of wear resistance test；Meanwhile passing through text
Convergence device in mound effectively avoids experimental provision so that the component that whole device is easy to produce leakage pollution is in negative pressure state
It pollutes the environment；Furthermore pressure gauge selects the block-resistant type difference gauge of high sensitivity, effectively improves the reliability of difference gauge
Energy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the wear-resistant experimental provision of honeycomb type denitrification catalyst of the embodiment of the present invention.
In figure: blower 1, venturi convergence device 2, cyclone separator 3, sample bin 4, comparison storehouse 5, screw feeder 6, hopper
7, weighing device 8, bag filter 9, No.1 regulating valve 11, two regulating valve 12, three regulating valve 13, No.1 can open sealing
Device 14, two can open sealing device 15, air supply tube 21, pipeline 22, converge pipeline 23, containing pipe material 24, clean wind pipe 25, to
31, No. two pipe material 26, fine ash pipeline 27, No.1 block-resistant type difference gauge block-resistant type difference gauges 32.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited to following embodiments.
Embodiment.
It is shown in Figure 1, it should however be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to match
The revealed content of specification is closed, so that those skilled in the art understands and reads, is not intended to limit the invention implementable
Qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size,
In the case where not influencing the effect of present invention can be generated and the purpose that can reach, should all still fall in disclosed technology
In the range of appearance can cover.Meanwhile if with reference such as "upper", "lower", "left", "right", " centre " and " one " in this specification
Term, be merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or
Adjustment, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
The wear-resistant experimental provision of honeycomb type denitrification catalyst in the present embodiment, including blower 1, venturi convergence device 2, rotation
Wind separator 3, sample bin 4, comparison storehouse 5, screw feeder 6, hopper 7, weighing device 8, bag filter 9, air supply tube 21, pipe
Road 22 converges pipeline 23, containing pipe material 24, clean wind pipe 25, feeding lines 26 and fine ash pipeline 27.
Blower 1 in the present embodiment is connect with venturi convergence device 2, and venturi convergence device 2 is connect with cyclone separator 3,
Weighing device 8 is mounted on the lower part of cyclone separator 3, and the top of cyclone separator 3 is connect with bag filter 9, that is to say, that
Weighing device 8 is mounted on the bottom of cyclone separator 3, and fine ash pipeline 27 is connect with the top of cyclone separator 3；4 He of sample bin
Sealing device 15 can be opened by being separately installed with No.1 on comparison storehouse 5 and can opening sealing device 14 and No. two；Sample bin 4 and comparison storehouse
5 connect with venturi convergence device 2, and screw feeder 6 is connect with sample bin 4, and hopper 7 is connect with screw feeder 6.
Under normal conditions, blower 1 is connect with venturi convergence device 2 by air supply tube 21, venturi convergence device 2 and whirlwind point
It is connected from device 3 by pipeline 22, cyclone separator 3 is connect with bag filter 9 by fine ash pipeline 27, one end of sample bin 4
Connect with venturi convergence device 2 by converging pipeline 23 with the one end in comparison storehouse 5, the other end of sample bin 4 with compare the another of storehouse 5
One end is connected separately with containing pipe material 24 and clean wind pipe 25, and screw feeder 6 is connect with containing pipe material 24, and hopper 7 is given with spiral
Glassware 6 is connected by feeding lines 26.
No.1 regulating valve 11 is installed on air supply tube 21 in the present embodiment, containing being equipped with No. two regulating valves on pipe material 24
12 and No.1 block-resistant type difference gauge 31, No. three regulating valves 13 and No. two block-resistant type difference gauges 32 are installed on clean wind pipe 25；No. two
Regulating valve 12, screw feeder 6, No.1 block-resistant type difference gauge 31 and sample bin 4 are passed sequentially through along airflow direction containing pipe material
24 connections, 13, No. two block-resistant type difference gauges 32 of No. three regulating valves and comparison storehouse 5 pass sequentially through clean wind pipe 25 along airflow direction and connect
It connects.
The entrance gradually reducing pipeline of venturi convergence device 2 in the present embodiment is connect with air supply tube 21, venturi convergence device 2
Outlet flaring pipeline is connect with pipeline 22, and the middle part trunnion of venturi convergence device 2 is connect with pipeline 23 is converged；Venturi convergence device
2 middle part trunnion is negative pressure with 23 junction of pipeline is converged；Converge the elbow of pipeline 23, at the trunnion of venturi convergence device 2,
Using plating enamel or anti-wear treatment process.
The experimental method of the wear-resistant experimental provision of honeycomb type denitrification catalyst in the present embodiment is as follows: to open one respectively
Number can open sealing device 14 and No. two can open sealing device 15, and sample is put into sample bin 4, contrast sample is put into comparison
Storehouse 5, sealing device 15 can be opened and seal by covering No.1 respectively and can opening sealing device 14 and No. two；Open No.1 regulating valve
11, after No. two regulating valves 12 and No. three regulating valves 13, blower 1 is opened；It is empty under the suction function that venturi convergence device 2 generates
Gas is respectively enterd containing pipe material 24 and clean wind pipe 25, according to showing for No.1 block-resistant type difference gauge 31 and No. two block-resistant type difference gauges 32
Number, adjusts the aperture of No. two regulating valves 12 and No. three regulating valves 13, makes to reach experiment by the wind speed of sample bin 4 and comparison storehouse 5
It is required that being then turned on screw feeder 6, make experiment abrasion material by grinding into sample bin 4 to sample containing pipe material 24
Damage experiment；Material is worn to collect in and converges in pipeline 23 together with the air by comparing storehouse 5 after sample bin 4, then into
Enter venturi convergence device 2, then cyclone separator 3, fine ash pipeline 27 and bag filter 9 are passed sequentially through by pipeline 22, wherein
Biggish particle is collected by cyclone separator 3, is fallen into weighing device 8 and is weighed.
The wear-resistant experimental provision of the honeycomb type denitrification catalyst and experimental method are enough simulated in actual catalyst operation, honeycomb
It is differentiated to the generation of catalyst sample difference stress surface due to being affected by gravity to eliminate abrasion material for the wear working condition of catalyst
Abrasion influences the accuracy of wear resistance test；Meanwhile by venturi convergence device 2, let out so that whole device is easy to produce
The component of dew pollution is in negative pressure state, effectively experimental provision is avoided to pollute the environment；Furthermore pressure gauge is selected sensitive
High block-resistant type difference gauge is spent, the unfailing performance of difference gauge is effectively improved.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to structure of the invention example explanation described in this specification.It is all according to
According to equivalence changes or simple change that the invention patent design structure, feature and principle is done, it is included in this hair
In the protection scope of bright patent.Those skilled in the art can do described specific embodiment various
The mode that the modify or supplement or adopt of various kinds is similar substitutes, and without departing from structure of the invention or surmounts present claims
Range defined in book, is within the scope of protection of the invention.
Claims (10)
1. a kind of wear-resistant experimental provision of honeycomb type denitrification catalyst, it is characterised in that: including blower (1), venturi convergence device
(2), cyclone separator (3), sample bin (4), comparison storehouse (5), screw feeder (6), hopper (7), weighing device (8) and cloth bag
Deduster (9)；The blower (1) connect with venturi convergence device (2), the venturi convergence device (2) and cyclone separator (3)
Connection, the weighing device (8) are mounted on the lower part of cyclone separator (3), and the top of the cyclone separator (3) is removed with cloth bag
Dirt device (9) connection, the sample bin (4) and comparison storehouse (5) are connect with venturi convergence device (2), the screw feeder (6)
It is connect with sample bin (4), the hopper (7) connect with screw feeder (6).
2. the wear-resistant experimental provision of honeycomb type denitrification catalyst according to claim 1, it is characterised in that: the sample bin
(4) sealing device (15) can be opened by and being separately installed with No.1 in comparison storehouse (5) and can opening sealing device (14) and No. two.
3. the wear-resistant experimental provision of honeycomb type denitrification catalyst according to claim 1, it is characterised in that: further include air-supply
Pipe (21), pipeline (22) converge pipeline (23), containing pipe material (24), clean wind pipe (25), feeding lines (26) and fine ash pipeline
(27)；The blower (1) is connect with venturi convergence device (2) by air supply tube (21), the venturi convergence device (2) and whirlwind
Separator (3) is connected by pipeline (22), and the cyclone separator (3) and bag filter (9) are connected by fine ash pipeline (27)
It connecing, one end of the sample bin (4) and the one end for comparing storehouse (5) are connect with venturi convergence device (2) by converging pipeline (23),
The other end of the sample bin (4) and the other end of comparison storehouse (5) are connected separately with containing pipe material (24) and clean wind pipe (25), institute
It states screw feeder (6) to connect with (24) containing pipe material, the hopper (7) and screw feeder (6) pass through feeding lines (26)
Connection.
4. the wear-resistant experimental provision of honeycomb type denitrification catalyst according to claim 3, it is characterised in that: the air supply tube
(21) it is equipped on No.1 regulating valve (11), it is described containing being equipped with No. two regulating valves (12) and No.1 block-resistant type on pipe material (24)
Difference gauge (31) is equipped with No. three regulating valves (13) and No. two block-resistant type difference gauges (32) on the clean wind pipe (25).
5. the wear-resistant experimental provision of honeycomb type denitrification catalyst according to claim 4, it is characterised in that: No. two tune
Section valve (12), screw feeder (6), No.1 block-resistant type difference gauge (31) and sample bin (4) pass sequentially through along airflow direction and contain
Pipe material (24) connection, No. three regulating valves (13), No. two block-resistant type difference gauges (32) and comparison storehouse (5) are along airflow direction
Pass sequentially through clean wind pipe (25) connection.
6. the wear-resistant experimental provision of honeycomb type denitrification catalyst according to claim 1, it is characterised in that: the venturi
The entrance gradually reducing pipeline of convergence device (2) is connect with air supply tube (21), the outlet flaring pipeline and pipe of the venturi convergence device (2)
Road (22) connection, the middle part trunnion of the venturi convergence device (2) are connect with pipeline (23) is converged.
7. the wear-resistant experimental provision of honeycomb type denitrification catalyst according to claim 1, it is characterised in that: the weighing dress
The bottom that (8) are mounted on cyclone separator (3) is set, the fine ash pipeline (27) connect with the top of cyclone separator (3).
8. a kind of based on the wear-resistant experiment dress of honeycomb type denitrification catalyst described in any one of claim 1-7 claim
The experimental method set, it is characterised in that: the experimental method is as follows: sealing device (14) and No. two can be opened by opening No.1 respectively
Sealing device (15) can be opened, sample is put into sample bin (4), contrast sample are put into comparison storehouse (5), covering No.1 respectively can
Sealing device (15) can be opened and seal by opening sealing device (14) and No. two；Open No.1 regulating valve (11), No. two regulating valves
(12) it and after No. three regulating valves (13), opens blower (1)；Under the suction function that venturi convergence device (2) generate, air difference
Into containing pipe material (24) and clean wind pipe (25), according to No.1 block-resistant type difference gauge (31) and No. two block-resistant type difference gauges (32)
Registration adjusts the aperture of No. two regulating valves (12) and No. three regulating valves (13), makes through sample bin (4) and compare the wind of storehouse (5)
Speed reaches requirement of experiment, is then turned on screw feeder (6), makes experiment abrasion material by entering sample bin containing pipe material (24)
(4) wear test is carried out to sample；Material is worn to collect in together with the air by comparison storehouse (5) after sample bin (4)
Converge in pipeline (23), passes sequentially through cyclone separator (3), thin subsequently into venturi convergence device (2), then by pipeline (22)
Grey pipeline (27) and bag filter (9) are fallen into weighing device (8) wherein biggish particle is collected by cyclone separator (3)
It weighs.
9. the experimental method of the wear-resistant experimental provision of honeycomb type denitrification catalyst according to claim 8, it is characterised in that:
The middle part trunnion of the venturi convergence device (2) is negative pressure with pipeline (23) junction is converged.
10. the experimental method of the wear-resistant experimental provision of honeycomb type denitrification catalyst according to claim 8, feature exist
In: the elbow for converging pipeline (23), venturi convergence device (2) trunnion at, using plating enamel or anti-wear processing work
Skill.
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| CN201910225420.2A CN110044754B (en) | 2019-03-25 | 2019-03-25 | Honeycomb denitration catalyst abrasion resistance experimental device and experimental method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749523A (en) * | 2019-10-16 | 2020-02-04 | 华电电力科学研究院有限公司 | Denitration catalyst abrasion strength detection device and working method thereof |
| CN113358510A (en) * | 2021-05-14 | 2021-09-07 | 华电电力科学研究院有限公司 | Denitration catalyst wear resistance evaluation device and test method |
| CN113358511A (en) * | 2021-05-14 | 2021-09-07 | 华电电力科学研究院有限公司 | Experimental device and method for abrasion resistance of denitration catalyst to dust-containing flue gas |
| CN113533022A (en) * | 2021-07-14 | 2021-10-22 | 华电电力科学研究院有限公司 | Multi-test-bin honeycomb catalyst wear resistance evaluation test method |
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