CN203629985U - Abrasion performance testing device for catalyst - Google Patents
Abrasion performance testing device for catalyst Download PDFInfo
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- CN203629985U CN203629985U CN201320724640.8U CN201320724640U CN203629985U CN 203629985 U CN203629985 U CN 203629985U CN 201320724640 U CN201320724640 U CN 201320724640U CN 203629985 U CN203629985 U CN 203629985U
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Abstract
The utility model discloses an abrasion performance testing device and method for a catalyst. The abrasion performance testing device comprises a gas supply system, a simulation testing system and a data detection system, wherein the simulation testing system comprises an abrasive material mixing chamber and an abrasion testing chamber which are communicated in sequence; the abrasive material mixing chamber and the abrasion testing chamber are vertically arranged; the testing method comprises the steps of preparation of a catalyst sample, testing on the abrasion performance and data processing; an abrasion rate data processing calculation formula is provided. According to the abrasion performance testing device, the problem that the abrasion resistance performance of the catalyst testing sample cannot be generally accurately evaluated under different conditions is solved; due to the distribution, which is perpendicular to the ground, of a feeding mixing bin and a sample bin, the problem of non-uniformity of horizontal abrasive material distribution is solved, and the actual arrangement running condition of the catalyst in a power plant can be simulated; meanwhile, the abrasion amount of the catalyst, caused by the flue gas condition of a fire coal power plant, under different working conditions can be simulated; the abrasion performance testing device is high in adaptability.
Description
Technical field
The utility model belongs to detection technique field, especially belongs to catalyst performance evaluation detection technique field, particularly a kind of catalyst abrasion performance testing device.
Background technology
At present thermal power generation in the energy structure of China still in occupation of very important status, the fire coal application of other form is also the important channel that the current energy obtains, but the oxides of nitrogen of burning and exhausting has become one of atmospheric environment major pollutants, therefore the denitrating catalyst that, the flue gas SCR technology of removal oxides of nitrogen (being called for short SCR) adopts at home power plant is widely applied.Because the dust content of domestic thermal power plant is higher, the wear-corrosion resistance of catalyzer has just become to weigh the important indicator of catalyst performance.
In order to detect more accurately the performance of denitrating catalyst, need a kind of proving installation and the method for testing that can simulate fast, more accurately denitrating catalyst actual application environment, effective evaluation denitrating catalyst Abrasion properties.
Summary of the invention
The utility model discloses a kind of catalyst abrasion performance testing device according to the deficiencies in the prior art.The purpose of this utility model is to provide a kind of proving installation that can effectively simulate and evaluate SCR denitrating catalyst wear-corrosion resistance under high flue dust service condition.
The utility model device is achieved through the following technical solutions:
Catalyst abrasion performance testing device, comprise air supply system, simulation experiment system and data detection system, it is characterized in that: described simulation experiment system comprises abrasive material mixing chamber and the abrasion test chamber that order is communicated with, abrasive material mixing chamber and abrasion test chamber all vertically arrange.
Described simulation experiment system comprises voltage-regulation voltage-stabilization valve, flowmeter, abrasive material mixing chamber and the abrasion test chamber that order is communicated with; Described voltage-regulation voltage-stabilization valve inlet end is communicated with air supply system, and described abrasion test chamber outlet end is communicated with the separation vessel of data detection system, and described abrasive material mixing chamber is also communicated with abrasive material charger.
Described abrasion test chamber be pipeline shaped reaction device, two ends by flange be communicated with proving installation miscellaneous equipment, catalyst sample outside wraps up successively ceramic fiber paper and fixture and is fixed on center, abrasion test chamber by fixture.
Described data detection system comprises the separation vessel that upper end is communicated with simulation experiment system endpiece, the gatherer that separator lower end is communicated with, and data detection system also comprises the temperature in and pressure-detecting device, the anterior sample end temperature and pressure pick-up unit of detecting position in abrasion test chamber and the U-tube manometer at two ends, abrasion test chamber that are arranged at the anterior detecting position of abrasive material mixing chamber.
Between abrasion test chamber front end and charger, be communicated with and be provided with pressure-equalizing passageway.
The utility model Abrasion properties proving installation all vertically arranges abrasive material mixing chamber and abrasion test chamber, by regulating voltage-regulation voltage-stabilization valve to distribute quantitative gas flow through unsettled flowmeter, abrasive material mixing chamber and quadrangular abrasion test chamber.In abrasive material mixing chamber, distribute abrasive material to air-flow by screw rod.Then flowing through separated from the gasly in separation vessel after catalyzer, and collecting in gatherer.Catalyst samples is placed on sample bin support and nails on taking ceramic fiber paper as shell, and is fixed and sealed by fixture.When test, measure and the temperature in of record entry section and the sample end temperature and pressure of pressure and sample front end.This external pressure differential through catalyzer front and back can be read by U-shaped pressure gauge.In order to distribute smoothly abrasive material in air-flow, the pressure of abrasion test chamber is inserted in the storer of screw rod by pressure-equalizing passageway, and can take the reading.
The utility model device portal section is provided with voltage-regulation voltage-stabilization valve, and gas flow obtains gas flow rate through flow measurement, and flowmeter rear end is provided with temperature in and the pressure detection point of entrance.In abrasion test chamber, sample front end is provided with sample end temperature and pressure check point.In abrasion test chamber, two ends connect two measurement points of U-tube manometer.Outlet section in abrasion test chamber connects separation vessel, and separation vessel upper end connects compressed air outlet pipeline, and separator lower end connects gatherer.
The utility model adopts the schmigel of different-grain diameter as the severe flue dust condition that doubles of abrasive material simulation Coal rank.Can change airborne abrasive material content by the screw speed that changes charger, simulate the flue dust condition of different dustiness.Realize the preliminary adjusting of compressed air require by voltage-regulation voltage-stabilization valve, according to entrance pressure, temperature, the pressure of sample front end, temperature, can calculate and adjust the air velocity of sample front end.The mixing arrangement of air and abrasive material can, in the ratio of setting, mix abrasive material and quantitative air, is uniformly distributed to ensure that abrasive material is aerial.
The utility model catalyst abrasion performance test methods comprises that catalyst sample is prepared, Abrasion properties is tested and data processing;
Comprise following concrete steps:
Catalyst sample is prepared:
From catalyzer monomer, neatly cut sample, polish flat, and measure length, the length of side, the wall thickness of sample, record sample catalyzer duct quantity, sample is immersed in hardening bath and is hardened, sclerosis length 5-10mm, firm time 10-20 second; Dry, put into calcinator and calcine by following program:
50 DEG C/h of step 1:25 DEG C to 100 DEG C heating rate
25 DEG C/h of step 2:100 DEG C to 150 DEG C heating rate
Step 3:150 DEG C of constant temperature 2 hours
50 DEG C/h of step 4:150 DEG C to 400 DEG C heating rate
Step 5:400 DEG C to 30 DEG C/h of room temperature rate of temperature fall
Cooling rear weighing, record sample mass, sample surrounding is indoor with being fixed on abrasion test with fixture after ceramic fiber paper parcel, and sclerosis end face is positioned at inlet end;
Abrasion properties test:
Start air supply system air feed, regulating voltage-regulation voltage-stabilization valve to gas flow is setting value, starts abrasive material charger and adds quantitative corundum abrasive by setting speed; Record temperature, air mass flow, pressure and U-tube manometer data; Record corundum abrasive grain diameter;
30 minutes abrasion test time, finishes rear taking-up sample, sample weighing after cleaning; Record the corundum abrasive quality in gatherer;
Data processing:
Detection data are calculated to abrasion rate by following calculating formula;
Wherein: X is abrasion rate, the % of unit; A1 is quality before sample is surveyed, unit gram; A2 is quality after sample is surveyed, unit gram; B is corundum abrasive weight, unit gram; C is actual volume flow, unit cube m/h; D is air velocity, unit meter per second; E is specimen length, unit millimeter; F is actual sclerosis length, unit millimeter; G surveys back aperture, unit millimeter; H is duct number, unit; I is the length of side, unit millimeter; J surveys front aperture, unit millimeter.
The utility model method is at the indoor air that contains abrasive material that catalyst samples is placed in of abrasion test, realizes the adjusting of air mass flow and pressure by adjusting voltage-regulation voltage-stabilization valve, thereby calculates and Quality control end air velocity.The rotating speed of adjusting abrasive material charger screw rod is transported to quantitative abrasive material in abrasive material mixing chamber, and pass through sample with the flow velocity of needs after mixing with certain ratio row with air, abrasive material is separated by separation vessel, and reclaim by gatherer, measure abrasive material weight and the sample weight loss of certain hour by weighing and calculate and evaluate abrasion rate.
The utility model passes through the indoor catalyzer of abrasion test by the air that has added abrasive material by certain flow rate, by measuring abrasive material weight, the wear extent of catalyzer, the relative dimensions of catalyzer, it is 110g/m that the experiment condition that these are accelerated to worsen is corrected to abrasive concentration
3air velocity is 40m/s, the non-sclerosis end of sample length is 95mm, sclerosis end length is 5mm, aperture is the standard testing platform in this pitch monolithic design aperture, above-mentioned each condition derive from German KWH abrasion rate method for designing, be convenient to the abrasive effect comparison between different catalysts product, the wear-corrosion resistance of the non-sclerosis part of evaluate catalysts, guarantees the normal service life of catalyst prod.
The advantage of this device of the utility model and method of testing:
Solve under the Different Altitude atmospheric pressure of different air humiditys, different altitude height, can not unify to the anti-erosion performance of sample the problem of accurate evaluation under the condition such as the catalyzer of different sample size, different air velocity, different formulations catalyzer, different catalysts manufacturer production.
By the distribution to feed mixing bunker, sample bin vertical ground, solve the abrasive material problem pockety of horizontal distribution, actual arrangement ruuning situation that more can simulative power plant catalyzer; Meanwhile, by changing the mode such as concentration, air velocity of abrasive material character, abrasive material, the wear extent of the coal-fired plant flue gas condition under different operating modes can simulated to catalyzer, has applicability widely.
Brief description of the drawings
Fig. 1 is the utility model device schematic diagram;
Fig. 2 is the utility model device abrasion test cell structure schematic diagram;
Fig. 3 is the utility model device abrasion test chamber cross-section structural representation.
In figure, the 1st, voltage-regulation voltage-stabilization valve, the 2nd, flowmeter, the 3rd, charger, the 4th, abrasion test chamber, the 5th, separation vessel, the 6th, gatherer, the 8th, abrasive material mixing chamber, the 9th, pressure-equalizing passageway, the 10th, temperature in and pressure-measuring-point, the 11st, tensimeter, the 12nd, sample end temperature and pressure measuring point, the 13rd, U-tube manometer, the 14th, feed bin, the 15th, ceramic fiber paper, the 16th, sample, the 17th, fixture, the 18th, flange, F is gas turnover direction.
Embodiment
Below by embodiment, the utility model is specifically described; the present embodiment is only for being further detailed the utility model; but can not be interpreted as the restriction to the utility model protection domain, some nonessential improvement that those skilled in the art makes according to above-mentioned content of the present utility model and adjustment also belong to the scope of the utility model protection.
In conjunction with Fig. 1 to Fig. 3.
As shown in the figure, the utility model device comprises air supply system, simulation experiment system and data detection system.Simulation experiment system comprises abrasive material mixing chamber 8 and the abrasion test chamber 4 that order is communicated with, and abrasive material mixing chamber 8 and abrasion test chamber 4 all vertically arrange.
Simulation experiment system comprises voltage-regulation voltage-stabilization valve 1, flowmeter 2, abrasive material mixing chamber 8 and the abrasion test chamber 4 that order is communicated with; Voltage-regulation voltage-stabilization valve 1 inlet end is communicated with air supply system, and described abrasion test chamber 4 endpiece are communicated with the separation vessel 5 of data detection system, and described abrasive material mixing chamber 8 is also communicated with abrasive material charger (3).
Abrasion test chamber 4 for pipeline shaped reaction device, two ends by flange 18 be communicated with proving installation miscellaneous equipment, ceramic fiber paper 15 is wrapped up in catalyst sample 16 outsides successively and fixture 17 be fixed on 4 centers, abrasion test chamber by fixture 17.
Data detection system comprises the separation vessel 5 that upper end is communicated with simulation experiment system endpiece, the gatherer 6 that separation vessel 5 lower ends are communicated with, and data detection system also comprises the temperature in and pressure-detecting device 10, the sample end temperature and pressure pick-up unit 12 of abrasion test chamber 4 anterior detecting positions and the U-tube manometer at 4 two ends, abrasion test chamber that are arranged at abrasive material mixing chamber 8 anterior detecting positions.
The utility model device is also provided with pressure-equalizing passageway 9 between abrasion test chamber 4 front ends and charger 3, to ensure the pressure equilibrium of charger 3 and total system, realizes more accurate abrasive material and adds.
The air supply system of the utility model device adopts high-pressure pump or gas cylinder to provide.
The utility model catalyst abrasion performance test methods comprises that catalyst sample is prepared, Abrasion properties is tested and data processing;
Comprise following concrete steps:
From catalyzer monomer, neatly cut sample, polish flat, and measure length, the length of side, the wall thickness of sample, record sample catalyzer duct quantity, sample is immersed in hardening bath and is hardened, sclerosis length 5-10mm, firm time 10-20 second; Dry, put into calcinator and calcine by following program:
50 DEG C/h of step 1:25 DEG C to 100 DEG C heating rate
25 DEG C/h of step 2:100 DEG C to 150 DEG C heating rate
Step 3:150 DEG C of constant temperature 2 hours
50 DEG C/h of step 4:150 DEG C to 400 DEG C heating rate
Step 5:400 DEG C to 30 DEG C/h of room temperature rate of temperature fall
Cooling rear weighing, record sample mass, sample surrounding is indoor with being fixed on abrasion test with fixture after ceramic fiber paper parcel, and sclerosis end face is positioned at inlet end;
Abrasion properties test:
Start air supply system air feed, regulating voltage-regulation voltage-stabilization valve to gas flow is setting value, starts abrasive material charger and adds quantitative corundum abrasive by setting speed; Record temperature, air mass flow, pressure and U-tube manometer data; Record corundum abrasive grain diameter;
30 minutes abrasion test time, finishes rear taking-up sample, sample weighing after cleaning; Record the corundum abrasive quality in gatherer;
Data processing:
Detection data are calculated to abrasion rate by following calculating formula;
Wherein: X is abrasion rate, the % of unit; A1 is quality before sample is surveyed, unit gram; A2 is quality after sample is surveyed, unit gram; B is corundum abrasive weight, unit gram; C is actual volume flow, unit cube m/h; D is air velocity, unit meter per second; E is specimen length, unit millimeter; F is actual sclerosis length, unit millimeter; G surveys back aperture, unit millimeter; H is duct number, unit; I is the length of side, unit millimeter; J surveys front aperture, unit millimeter.
Embodiment 1
Experiment 1: the voltage-regulation voltage-stabilization valve 1 of regulating device, the flow velocity of the catalyst sample that makes to flow through reaches 18m/s, and with schmigel, as abrasive material, addition is that 20kg/h denudes experiment, and the abrasion time is 30 minutes, and sample pitch is 8.2mm, 5*5 hole, length 100mm.In erosion process, record the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality, calculate abrasion result with formula.
Experiment 2: regulate the voltage-regulation voltage-stabilization valve 1 of abrasion device, the flow velocity of the catalyst sample that makes to flow through reaches 23m/s, and other conditions are constant, record the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality in erosion process, calculates abrasion result with formula.
Experiment 3: regulate the voltage-regulation voltage-stabilization valve 1 of abrasion device, the flow velocity of the catalyst sample that makes to flow through reaches 26m/s, and other conditions are constant, record the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality in erosion process, calculates abrasion result with formula.
Experiment 4: regulate the voltage-regulation voltage-stabilization valve 1 of abrasion device, the flow velocity of the catalyst sample that makes to flow through reaches 29m/s, and other conditions are constant, record the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality in erosion process, calculates abrasion result with formula.
Experiment 5: regulate the voltage-regulation voltage-stabilization valve 1 of abrasion device, the flow velocity of the catalyst sample that makes to flow through reaches 33m/s, and other conditions are constant, record the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality in erosion process, calculates abrasion result with formula.
Experiment 6: regulate the voltage-regulation voltage-stabilization valve 1 of abrasion device, the flow velocity of the catalyst sample that makes to flow through reaches 36m/s, and other conditions are constant, record the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality in erosion process, calculates abrasion result with formula.
Experiment 7: regulate the voltage-regulation voltage-stabilization valve 1 of abrasion device, the flow velocity of the catalyst sample that makes to flow through reaches 39m/s, and other conditions are constant, record the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality in erosion process, calculates abrasion result with formula.
Test findings
Above-mentioned various abrasion test results are listed in to table 1 below:
Embodiment 2
Experiment 8: regulate the voltage-regulation voltage-stabilization valve 1 of abrasion device, the flow velocity of the catalyst sample that makes to flow through reaches 30m/s, and as abrasive material, addition is that 5kg/h denudes experiment with schmigel, and the abrasion time is 30 minutes, and sample pitch is 8.2mm, 5*5 hole, length 100mm.In erosion process, record the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality, calculate abrasion result with formula.
Experiment 9: adding the amount of abrasive material is that 10kg/h denudes experiment, and other conditions are constant, record the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality in erosion process, calculates abrasion result with formula.
Experiment 10: adding the amount of abrasive material is that 15kg/h denudes experiment, and other conditions are constant, record the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality in erosion process, calculates abrasion result with formula.
Experiment 11: adding the amount of abrasive material is that 20kg/h denudes experiment, and other conditions are constant, record the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality in erosion process, calculates abrasion result with formula.
Experiment 12: adding the amount of abrasive material is that 25kg/h denudes experiment, and other conditions are constant, record the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality in erosion process, calculates abrasion result with formula.
Test findings
Above-mentioned various abrasion test results are listed in to table 2 below:
Embodiment 3
Experiment 13: regulate the voltage-regulation voltage-stabilization valve 1 of abrasion device, the flow velocity of the catalyst sample that makes to flow through reaches 30m/s, with schmigel as abrasive material, addition is that 20kg/h denudes experiment, and the abrasion time is 30 minutes, and sample pitch is 8.2mm, 5*5 hole, length 50.07mm.In erosion process, record the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality, calculate abrasion result with formula.
Experiment 14: specimen length is treated to 71.21mm, and other conditions are constant, records the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality in erosion process, calculates abrasion result with formula.
Experiment 15: specimen length is treated to 87.16mm, and other conditions are constant, records the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality in erosion process, calculates abrasion result with formula.
Experiment 16: specimen length is treated to 100.79mm, and other conditions are constant, records the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality in erosion process, calculates abrasion result with formula.
Experiment 17: specimen length is treated to 111.15mm, and other conditions are constant, records the parameters such as relevant temperature, pressure, pressure reduction, abrasive material quality in erosion process, calculates abrasion result with formula.
Test findings
Above-mentioned various abrasion test results are listed in to table 3 below:
To sum up, as shown in table 1,2,3, in the constant situation of other conditions, change respectively air velocity, abrasive material addition, specimen length, utilizes formula and parameter platform to calculate, draw within the specific limits, system experimentation result is not changed by air velocity, and abrasive material addition changes, and specimen length changes, the impact that the influence factor conditions such as air humidity changes, the change of monomer sclerosis length change.The erosion resistance of can the Efficient Evaluation different SCR catalyzer monomers of the utility model is described.
The utility model method of testing has specified that in formula and parameter platform abrasive concentration is 110g/m3, air velocity is 40m/s, and the non-sclerosis end of sample length is 95mm, and sclerosis end length is 5mm, aperture is this pitch monolithic design aperture, and all measured datas are all proofreaied and correct in formula.Realized the erosion resistance of the utility model device and the different SCR catalyzer of method of testing energy Efficient Evaluation monomer by correction.
Claims (5)
1. a catalyst abrasion performance testing device, comprise air supply system, simulation experiment system and data detection system, it is characterized in that: described simulation experiment system comprises abrasive material mixing chamber (8) and abrasion test chamber (4) that order is communicated with, abrasive material mixing chamber (8) and abrasion test chamber (4) all vertically arrange.
2. catalyst abrasion performance testing device according to claim 1, is characterized in that: described simulation experiment system comprises voltage-regulation voltage-stabilization valve (1), flowmeter (2), abrasive material mixing chamber (8) and abrasion test chamber (4) that order is communicated with; Described voltage-regulation voltage-stabilization valve (1) inlet end is communicated with air supply system, and described abrasion test chamber (4) endpiece is communicated with the separation vessel (5) of data detection system, and described abrasive material mixing chamber (8) is also communicated with abrasive material charger (3).
3. catalyst abrasion performance testing device according to claim 1 and 2, is characterized in that: described abrasion test chamber (4) be pipeline shaped reaction device, two ends by flange (18) be communicated with proving installation miscellaneous equipment, ceramic fiber paper (15) is wrapped up successively in catalyst sample (16) outside and fixture (17) is also fixed on center, abrasion test chamber (4) by fixture (17).
4. catalyst abrasion performance testing device according to claim 3, it is characterized in that: described data detection system comprises the separation vessel (5) that upper end is communicated with simulation experiment system endpiece, the gatherer (6) that separation vessel (5) lower end is communicated with, and data detection system also comprises the temperature in and pressure-detecting device (10), the sample end temperature and pressure pick-up unit (12) of the anterior detecting position in abrasion test chamber (4) and the U-tube manometer at two ends, abrasion test chamber (4) that are arranged at the anterior detecting position of abrasive material mixing chamber (8).
5. catalyst abrasion performance testing device according to claim 4, is characterized in that: between abrasion test chamber (4) front end and charger (3), be communicated with and be provided with pressure-equalizing passageway (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320724640.8U CN203629985U (en) | 2013-11-16 | 2013-11-16 | Abrasion performance testing device for catalyst |
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| CN201320724640.8U CN203629985U (en) | 2013-11-16 | 2013-11-16 | Abrasion performance testing device for catalyst |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592194A (en) * | 2013-11-16 | 2014-02-19 | 成都东方凯特瑞环保催化剂有限责任公司 | Device and method for testing abrasion performance of catalyst |
| CN109085078A (en) * | 2018-08-07 | 2018-12-25 | 西安凯立新材料股份有限公司 | A kind of measurement device and method of spherical catalyst particles tear strength |
| CN110044754A (en) * | 2019-03-25 | 2019-07-23 | 华电电力科学研究院有限公司 | A kind of wear-resistant experimental provision of honeycomb type denitrification catalyst and experimental method |
-
2013
- 2013-11-16 CN CN201320724640.8U patent/CN203629985U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592194A (en) * | 2013-11-16 | 2014-02-19 | 成都东方凯特瑞环保催化剂有限责任公司 | Device and method for testing abrasion performance of catalyst |
| CN103592194B (en) * | 2013-11-16 | 2016-03-02 | 成都东方凯特瑞环保催化剂有限责任公司 | A kind of catalyst abrasion performance testing device and method of testing |
| CN109085078A (en) * | 2018-08-07 | 2018-12-25 | 西安凯立新材料股份有限公司 | A kind of measurement device and method of spherical catalyst particles tear strength |
| CN109085078B (en) * | 2018-08-07 | 2020-10-27 | 西安凯立新材料股份有限公司 | Device and method for measuring abrasion strength of spherical catalyst particles |
| CN110044754A (en) * | 2019-03-25 | 2019-07-23 | 华电电力科学研究院有限公司 | A kind of wear-resistant experimental provision of honeycomb type denitrification catalyst and experimental method |
| CN110044754B (en) * | 2019-03-25 | 2023-11-24 | 华电电力科学研究院有限公司 | Honeycomb denitration catalyst abrasion resistance experimental device and experimental method |
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Granted publication date: 20140604 Effective date of abandoning: 20160302 |
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