CN109765343A - Tail gas clean-up and PM2.5 adsorption effect detection device and its detection method - Google Patents
Tail gas clean-up and PM2.5 adsorption effect detection device and its detection method Download PDFInfo
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- CN109765343A CN109765343A CN201910177642.1A CN201910177642A CN109765343A CN 109765343 A CN109765343 A CN 109765343A CN 201910177642 A CN201910177642 A CN 201910177642A CN 109765343 A CN109765343 A CN 109765343A
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- tail gas
- air inlet
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- adsorption effect
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention discloses a kind of tail gas clean-up and PM2.5 adsorption effect detection devices and its detection method, it is intended to solve the prior art and be unable to real-time detection to absorb degradation effect, simulating natural environment and ecotopia and cannot can not detect simultaneously absorption degradation vehicle exhaust and the technical issues of PM2.5 effect.The present apparatus includes reaction chamber, bottom plate, absorption degradation material, PM2.5 detector, automobile emission gas analyzer instrument, ultraviolet lamp, fan, air inlet, gas outlet and gas-guide tube；The reaction chamber is tightly attached on the bottom plate, places the absorption degradation material, the PM2.5 detector and the automobile emission gas analyzer instrument on the indoor bottom plate of reaction；The ultraviolet lamp and the fan are hung in the reaction indoor top；The air inlet and the gas outlet are respectively arranged on the ipsilateral downside and upside of the reaction chamber；The gas-guide tube is connected to the air inlet.Structure of the invention rationally, good seal performance, and easy for operation, testing result accuracy is high.
Description
Technical field
The present invention relates to purifying vehicle exhaust technical fields, and in particular to a kind of tail gas clean-up and the inspection of PM2.5 adsorption effect
Survey device and its detection method.
Background technique
Vehicle exhaust is a kind of flowing source of atmospheric pollution, in recent years, have absorb tail gas function absorption degradation material at
For research hotspot.Detection of the various absorption degradation materials to automobile exhaust degrading effect, generallys use the physical and chemical hand of spectrum analysis
Section, or test analysis is carried out using the powder of XRD (X-ray diffraction) and SEM scanning electron microscope to material, or with Scherrer formula meter
It calculates, but these test methods all have the disadvantages of detection accuracy is low, detection time is long and function is simple, can not achieve real-time sampling
Test analysis.And correlation test equipment is only capable of providing degradation absorption of the material to vehicle exhaust in indoor enclosed environment both at home and abroad
Condition, can not the influence of simulating natural environment and ecotopia to absorption degradation material property.
PM2.5 refers to particulate matter of the aerodynamics equivalent diameter less than or equal to 2.5 microns in surrounding air.It can be longer
Time is suspended in the air, and content concn is higher in air, and it is more serious just to represent air pollution.And there is no simultaneously at present
It has both purifying vehicle exhaust and PM2.5 is adsorbed and verified the detection device and detection method of its effect.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of tail gas clean-up and PM2.5 adsorption effect detection device and its inspections
Survey method, with solve the prior art be unable to real-time detection absorb degradation effect, can not simulating natural environment and ecotopia and
The technical issues of absorption degradation vehicle exhaust and PM2.5 effect cannot be detected simultaneously.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
Design a kind of tail gas clean-up and PM2.5 adsorption effect detection device, including reaction chamber, bottom plate, absorption degradation material,
PM2.5 detector, automobile emission gas analyzer instrument, ultraviolet lamp, fan, air inlet, gas outlet, air inlet control valve, gas outlet control
Valve and gas-guide tube；The reaction chamber is tightly attached to the bottom plate and is positioned above；The absorption drop is placed in the reaction chamber
Solve material, the PM2.5 detector and the automobile emission gas analyzer instrument；The ultraviolet lamp and the fan are arranged in the reaction
Indoor top；The air inlet and the gas outlet are set to the same side of the reaction chamber, and the air inlet is described in downside
Gas outlet is in upside；The air inlet control valve is set to the air inlet, and the gas outlet control valve is set to the gas outlet；Institute
Gas-guide tube is stated to be connected to outside the reaction chamber and with the air inlet.
Preferably, the reaction chamber is the positive tetragonal body that downside is equipped with opening, and four sides and top surface are organic glass
Material, joint place are bonded and sealed by glue.
Preferably, the bottom plate is square, stainless steel material, and size is slightly larger than the reaction chamber bed-plate dimension, institute
It states four side of reaction chamber bottom surface and is bonded with the bottom plate by polyurethane foam gap filler.
Preferably, the air inlet and the gas outlet are steel pipe, are plugged on the reaction chamber, seam crossing glass
Glue sealing.
Preferably, the fan is the small-power fan from charged pool.
Preferably, the ultraviolet lamp is the ultraviolet disinfection lamp that can emit 185nm length ultraviolet line.
Preferably, one end that the gas-guide tube is connected to air inlet handle hose clamp fixing seal, the gas-guide tube
The other end is connected to by reducer pipe with automobile exhaust port, and with handle hose clamp fixing seal.
Preferably, the absorption degradation material is nano-titanium dioxide tourmaline composite, is prepared by following methods:
(1) it takes 300mL distilled water and 10g tourmaline powder to be mixed, stirs 5min in 5 DEG C of cold baths, be added thereto
3mol/L TiCl4Stock solution 1mL obtains the first mixed liquor；
(2) 1.5mol/L(NH that enchashment is matched4)2SO4Solution 5mL and purity are that 36%~38% HCl 3mL is mixed, and are then dripped
Enter in first mixed liquor, 15min is sufficiently stirred and is warming up to 70 DEG C, heat preservation 1h obtains the second mixed liquor；
(3) pH value of second mixed liquor is adjusted to 4.4 using weak aqua ammonia, stands reaction 2h, then filters, cleaning precipitating；
(4) precipitating is dried, after natural cooling to obtain the final product.
A kind of tail gas clean-up and PM2.5 adsorption effect detection method, comprising the following steps:
(1) air inlet, automobile to be detected are connected to above-mentioned tail gas clean-up and the gas-guide tube of PM2.5 adsorption effect detection device
Exhaust outlet, open the air inlet control valve and the gas outlet control valve, start up the car idle 5 ~ 10min；
(2) the air inlet control valve and the gas outlet control valve are closed, it is dense to record initial tail gas in the reaction chamber at this time
Degree and PM2.5 content；
(3) it will test device to be placed under sunlight, open the ultraviolet radiator and the fan, record one every half an hour
Secondary tail gas concentration and PM2.5 content, it is final tail gas concentration and PM2.5 content that last time data are recorded after 4 hours；
(4) according to the purification efficiency for initially calculating the absorption degradation material with final tail gas concentration and PM2.5 content.
Preferably, in the step (4), the calculation formula of purification efficiency are as follows:
In formula: n is purification efficiency；X and y is respectively initial and final tail gas concentration or PM2.5 content.
Compared with prior art, the beneficial technical effect of the present invention lies in:
1. the present invention uses organic glass material reaction chamber, the light transmission of organic glass is good, can pass through 92% or more the sun
Light, it is higher than the light transmittance of glass, and can be through ultraviolet light up to 73.5%, and simple glass can only penetrate 0.6% ultraviolet light, reaction
Room is made the loss that can be reduced to the maximum extent to ultraviolet light by organic glass material and more accurately simulates natural lighting environment.
2. the present invention is by being equipped with ultraviolet radiator energy simulation ecotopia very well: nano-TiO2Catalysis material has
Biggish forbidden bandwidth (3.2eV), can only absorbing wavelength λ≤387nm ultraviolet light, solar energy cannot be effectively utilized, use
Ultraviolet radiator irradiation can farthest active material photocatalysis performance, highlight its catalysis characteristics.
3. reaction chamber and the polyurethane foam gap filler joint filling of bottom plate joint place, easy to operate, good airproof performance in the present invention
And cleaning is convenient, meets the requirement of routine test and test roads on-site test.
4. air inlet and air outlet are mounted on control valve in the present invention, enough tail gas and PM2.5 are filled in reaction chamber
After close, guarantee reaction chamber it is closed, not with outside air flow, reduce measurement error, can real-time detection absorb degradation effect.
5. the absorption degradation material that the present invention uses can absorb degradation vehicle exhaust and PM2.5 simultaneously, and pass through PM2.5
Detector and the detection of automobile emission gas analyzer instrument absorb degradation effect.
Detailed description of the invention
Fig. 1 is the use state diagram of tail gas clean-up of the present invention and PM2.5 adsorption effect detection device.
In figure, 1 is reaction chamber, and 2 be bottom plate, and 3 be absorption degradation material, and 4 be PM2.5 detector, and 5 be automobile emission gas analyzer
Instrument, 6 be ultraviolet lamp, and 7 be fan, and 8 be air inlet, and 9 be gas outlet, and 101 be air inlet control valve, and 102 be gas outlet control valve,
11 be gas-guide tube, and 12 be automobile exhaust port.
Specific embodiment
Illustrate a specific embodiment of the invention with reference to the accompanying drawings and examples, but following embodiment is used only in detail
It describes the bright present invention in detail, does not limit the scope of the invention in any way.
Components involved in following embodiment etc. are then unless otherwise instructed conventional commercial product.
Embodiment 1: a kind of tail gas clean-up and PM2.5 adsorption effect detection device, referring to Fig. 1, including reaction chamber 1, bottom plate
2, absorption degradation material 3, PM2.5 detector 4, automobile emission gas analyzer instrument 5, ultraviolet lamp 6, fan 7, air inlet 8, gas outlet 9, into
Port control valve 101, gas outlet control valve 102 and gas-guide tube 11.
Reaction chamber 1 is the positive tetragonal body that downside is equipped with opening, and four sides and top surface are organic glass material, joint place
It is bonded and sealed with glue, reaction chamber can reduce loss to ultraviolet light and relatively true by the production of organic glass material to the maximum extent
Simulation natural lighting environment.
Bottom plate 2 is square, stainless steel material, and size is slightly larger than 1 bed-plate dimension of reaction chamber；Reaction chamber 1 is arranged the bottom of at
2 top of plate, 1 bottom surface of reaction chamber, four side are bonded with bottom plate 2, and joint place is sealed with polyurethane foam gap filler joint filling；Absorption degradation
Material 3, PM2.5 detector 4 and automobile emission gas analyzer instrument 5 are both placed on the bottom plate 2 in reaction chamber 1.
Preferably, PM2.5 detector 4 is that HA-806 holds gas detecting instrument (four-in-one), and automobile emission gas analyzer instrument 5 is
CW-HAT200 high-precision hand-held PM2.5 tacheometer, absorption degradation material 3 are nano-titanium dioxide tourmaline composite, are used
In absorption degradation vehicle exhaust and PM2.5.
1 inner top of reaction chamber is hung with ultraviolet lamp 6 and fan 7, and fan 7 is the small-power toy fan from charged pool, uses
In vehicle exhaust and PM2.5 are blowed to absorption degradation material 3, the efficiency for absorbing degradation is improved；Ultraviolet lamp 6 is that can emit
The ultraviolet disinfection lamp of 185nm length ultraviolet line can farthest activate absorption degradation material 3 using the irradiation of ultraviolet lamp 6
Photocatalysis performance, its catalysis characteristics is highlighted, for simulating ecotopia.
Air inlet 8 and gas outlet 9 are steel pipe, are inserted into the same side of reaction chamber 1, and seam crossing is sealed with glass cement,
Air inlet 8 is equipped with air inlet control valve 101 in downside, and gas outlet 9 is equipped with gas outlet control valve 102 in upside；Air inlet
Mouth 8 is connected to by gas-guide tube 11 with automobile exhaust port 12, and gas-guide tube 11 is connected to by being connected with reducer pipe with automobile exhaust port 12,
Use American plastic handle hose clamp fixing seal in 11 both ends junction of gas-guide tube.
Embodiment 2: the present invention relates to nano-titanium dioxide tourmaline composites, are prepared by following methods:
(1) it in three mouthfuls of beakers of capacity 500mL, after 300mL distilled water, 10g tourmaline powder is added, is stirred in 5 DEG C of cold baths
5min is mixed, is well located in ventilation condition, draws 3mol/L TiCl with rubber head dropper4Stock solution 1mL is slowly instilled wherein, is obtained
First mixed liquor；
(2) 1.5mol/L(NH for taking laboratory now to match4)2SO4Solution 5mL and purity are that 36%~38% HCl 3mL is mixed,
Then it instills in the first mixed liquor, 15min is sufficiently stirred by magnetic stirring apparatus and is warming up to 70 DEG C, it is mixed to obtain second by heat preservation 1h
Close liquid；
(3) pH value of the second mixed liquor is adjusted to 4.4 using weak aqua ammonia, stands reaction 2h；Reaction solution is filtered, and uses distilled water
Cleaning precipitating repeatedly；As washing lotion 0.1mol/L AgNO3When solution is examined without white precipitate, i.e., without Cl in washing lotion-In the presence of；
Then using the precipitating on washes of absolute alcohol filter paper；
(4) it after drying 1h in a vacuum drying oven, is put into high temperature furnace and is warming up to 550 DEG C and keeps the temperature 2h, after natural cooling
To nano-titanium dioxide tourmaline composite.
Embodiment 3: the detection method of a kind of tail gas clean-up and PM2.5 adsorption effect includes the following steps:
(1) with tail gas clean-up in embodiment 1 and the gas-guide tube 11 of PM2.5 adsorption effect detection device by air inlet 8 with it is to be detected
The exhaust outlet 12 of automobile is connected to, and opens air inlet control valve 101 and gas outlet control valve 102, start up the car idle 1-
60min；
(2) close air inlet control valve 101 and gas outlet control valve 102, record at this time in reaction chamber 1 initial tail gas concentration and
PM2.5 content；
(3) it will test device to be placed under sunlight, open ultraviolet radiator 6 and fan 7, record a tail gas every half an hour
Concentration and PM2.5 content, it is final tail gas concentration and PM2.5 content that last time data are recorded after 4 hours；
(4) according to the purification efficiency for initially calculating absorption degradation material 3 with final tail gas concentration and PM2.5 content, purification effect
The calculation formula of rate n are as follows:
In formula: n is purification efficiency；X and y is respectively initial and final tail gas concentration or PM2.5 content.
Embodiment 4: being detected using the detection method of embodiment 3, and absorption degradation material 3 is receiving for the preparation of embodiment 2
Rice titanium dioxide tourmaline composite.
Test result is as shown in table 1:
1 nano-titanium dioxide tourmaline composite tail gas clean-up of table and PM2.5 adsorption effect test result
。
Shown by above-mentioned test result:
The material has respectively reached hydrocarbon 32%, carbon monoxide to the purification efficiency of vehicle exhaust and PM2.5 particulate matter
46%, nitrogen oxides 100%, PM2.5 particulate matter 30%, therefore the present invention can absorb degradation vehicle exhaust and PM2.5 simultaneously and energy is real
When detection absorb degradation effect, and good absorption degradation effect can be reached.
The present invention is described in detail above in conjunction with drawings and examples, still, those of skill in the art
Member is it is understood that without departing from the purpose of the present invention, can also carry out each design parameter in above-described embodiment
Change, forms multiple specific embodiments, is common variation range of the invention, is no longer described in detail one by one herein.
Claims (10)
1. a kind of tail gas clean-up and PM2.5 adsorption effect detection device, which is characterized in that including reaction chamber, bottom plate, absorption degradation
Material, PM2.5 detector, automobile emission gas analyzer instrument, ultraviolet lamp, fan, air inlet, gas outlet, air inlet control valve, gas outlet
Control valve and gas-guide tube；The reaction chamber is tightly attached to the bottom plate and is positioned above；The suction is placed in the reaction chamber
Attached degradable material, the PM2.5 detector and the automobile emission gas analyzer instrument；The ultraviolet lamp and the fan are arranged described
React indoor top；The air inlet and the gas outlet are set to the same side of the reaction chamber, the air inlet in downside,
The gas outlet is in upside；The air inlet control valve is set to the air inlet, and the gas outlet control valve is set to the outlet
Mouthful；The gas-guide tube is set to outside the reaction chamber and is connected to the air inlet.
2. tail gas clean-up according to claim 1 and PM2.5 adsorption effect detection device, which is characterized in that the reaction
Room is the positive tetragonal body that downside is equipped with opening, and four sides and top surface are organic glass material, and joint place is bonded by glue
Sealing.
3. tail gas clean-up according to claim 1 and PM2.5 adsorption effect detection device, which is characterized in that the bottom plate
It is square, stainless steel material, size is slightly larger than the reaction chamber bed-plate dimension, four side of reaction chamber bottom surface and the bottom
Plate is bonded by polyurethane foam gap filler.
4. tail gas clean-up according to claim 1 and PM2.5 adsorption effect detection device, which is characterized in that the air inlet
Mouth and the gas outlet are steel pipe, are plugged on the reaction chamber, seam crossing is sealed with glass cement.
5. tail gas clean-up according to claim 1 and PM2.5 adsorption effect detection device, which is characterized in that the fan
For from the small-power fan of charged pool.
6. tail gas clean-up according to claim 1 and PM2.5 adsorption effect detection device, which is characterized in that described ultraviolet
Lamp is the ultraviolet disinfection lamp that can emit 185nm length ultraviolet line.
7. tail gas clean-up according to claim 1 and PM2.5 adsorption effect detection device, which is characterized in that the air guide
One end handle hose clamp fixing seal being connected to the air inlet is managed, the gas-guide tube other end is arranged by reducer pipe and automobile
Port connection, and with handle hose clamp fixing seal.
8. tail gas clean-up according to claim 1 and PM2.5 adsorption effect detection device, which is characterized in that the absorption
Degradable material is nano-titanium dioxide tourmaline composite, is prepared by following methods:
(1) it takes 300mL distilled water and 10g tourmaline powder to be mixed, stirs 5min in 5 DEG C of cold baths, be added thereto
3mol/L TiCl4Stock solution 1mL obtains the first mixed liquor；
(2) 1.5mol/L(NH that enchashment is matched4)2SO4Solution 5mL and purity are that 36%~38% HCl 3mL is mixed, and are then dripped
Enter in first mixed liquor, 15min is sufficiently stirred and is warming up to 70 DEG C, heat preservation 1h obtains the second mixed liquor；
(3) pH value of second mixed liquor is adjusted to 4.4 using weak aqua ammonia, stands reaction 2h, then filters, cleaning precipitating；
(4) precipitating is dried, after natural cooling to obtain the final product.
9. a kind of tail gas clean-up and PM2.5 adsorption effect detection method, comprising the following steps:
(1) with tail gas clean-up described in claim 1 and the gas-guide tube of PM2.5 adsorption effect detection device be connected to the air inlet,
The exhaust outlet of automobile to be detected opens the air inlet control valve and the gas outlet control valve, start up the car idle 5 ~
10min；
(2) the air inlet control valve and the gas outlet control valve are closed, it is dense to record initial tail gas in the reaction chamber at this time
Degree and PM2.5 content；
(3) it will test device to be placed under sunlight, open the ultraviolet radiator and the fan, record one every half an hour
Secondary tail gas concentration and PM2.5 content, it is final tail gas concentration and PM2.5 content that last time data are recorded after 4 hours；
(4) according to the purification efficiency for initially calculating the absorption degradation material with final tail gas concentration and PM2.5 content.
10. the detection method of tail gas clean-up according to claim 9 and PM2.5 adsorption effect detection device, feature exist
In, in the step (4), the calculation formula of purification efficiency are as follows:
In formula: n is purification efficiency；X and y is respectively initial and final tail gas concentration or PM2.5 content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910177642.1A CN109765343A (en) | 2019-03-09 | 2019-03-09 | Tail gas clean-up and PM2.5 adsorption effect detection device and its detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910177642.1A CN109765343A (en) | 2019-03-09 | 2019-03-09 | Tail gas clean-up and PM2.5 adsorption effect detection device and its detection method |
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| CN109765343A true CN109765343A (en) | 2019-05-17 |
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ID=66458088
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910177642.1A Pending CN109765343A (en) | 2019-03-09 | 2019-03-09 | Tail gas clean-up and PM2.5 adsorption effect detection device and its detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112858126A (en) * | 2021-01-25 | 2021-05-28 | 清华大学 | High-emission vehicle identification system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3402385B2 (en) * | 1992-11-19 | 2003-05-06 | 株式会社荏原製作所 | Gas cleaning method and apparatus |
| CN104807950A (en) * | 2015-04-22 | 2015-07-29 | 北京建筑大学 | Device and method for evaluating automobile exhaust degradation effect of OGFC mixture |
| CN206074413U (en) * | 2016-06-30 | 2017-04-05 | 广西交通科学研究院 | Automobile exhaust degrading coating using effect test device |
| CN206096054U (en) * | 2016-10-20 | 2017-04-12 | 浙江大学宁波理工学院 | Automobile exhaust photocatalytic efficiency apparatus |
| CN109142352A (en) * | 2018-07-16 | 2019-01-04 | 同济大学 | A kind of photocatalysis road surface tail gas degradation indoor and outdoor detection device |
-
2019
- 2019-03-09 CN CN201910177642.1A patent/CN109765343A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3402385B2 (en) * | 1992-11-19 | 2003-05-06 | 株式会社荏原製作所 | Gas cleaning method and apparatus |
| CN104807950A (en) * | 2015-04-22 | 2015-07-29 | 北京建筑大学 | Device and method for evaluating automobile exhaust degradation effect of OGFC mixture |
| CN206074413U (en) * | 2016-06-30 | 2017-04-05 | 广西交通科学研究院 | Automobile exhaust degrading coating using effect test device |
| CN206096054U (en) * | 2016-10-20 | 2017-04-12 | 浙江大学宁波理工学院 | Automobile exhaust photocatalytic efficiency apparatus |
| CN109142352A (en) * | 2018-07-16 | 2019-01-04 | 同济大学 | A kind of photocatalysis road surface tail gas degradation indoor and outdoor detection device |
Non-Patent Citations (1)
| Title |
|---|
| 高如琴 等: ""电气石对纳米二氧化钛结构及光催化性能的影响"", 《硅酸盐学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112858126A (en) * | 2021-01-25 | 2021-05-28 | 清华大学 | High-emission vehicle identification system and method |
| CN112858126B (en) * | 2021-01-25 | 2023-01-31 | 清华大学 | High-emission vehicle identification system and method |
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Application publication date: 20190517 |