CN216449498U - Catalyst activity evaluation device for removing CO, HC and NO pollutants - Google Patents
Catalyst activity evaluation device for removing CO, HC and NO pollutants Download PDFInfo
- Publication number
- CN216449498U CN216449498U CN202122648957.5U CN202122648957U CN216449498U CN 216449498 U CN216449498 U CN 216449498U CN 202122648957 U CN202122648957 U CN 202122648957U CN 216449498 U CN216449498 U CN 216449498U
- Authority
- CN
- China
- Prior art keywords
- gas
- pipeline
- quartz
- reaction tube
- catalyst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
A catalyst activity evaluation device for removing CO, HC and NO pollutants comprises: the device comprises a filter, a gas mixing tank, a reaction furnace, a gas-liquid separator, a smoke probe installation pool and a smoke analyzer; the filter is connected to the gas mixing tank through a pipeline; the gas mixing tank is connected to the gas inlet end of the quartz reaction tube through a pipeline; the quartz reaction tube is arranged in the reaction furnace; the gas outlet end of the quartz reaction tube is connected to the gas-liquid separator through a pipeline, and the gas outlet end of the gas-liquid separator is connected to the smoke probe installation pool through a pipeline; the probe of the smoke gas analyzer is arranged in the smoke gas probe mounting pool; a quartz filter disc is arranged in the quartz reaction tube. According to the device for evaluating the catalyst performance, the quartz filter disc can intercept part of catalyst powder and quartz wool, so that subsequent pipelines are prevented from being blocked, and the loading and unloading operations of the catalyst are convenient and simple.
Description
Technical Field
The utility model relates to the technical field of diesel vehicle tail gas treatment, in particular to a catalyst activity evaluation device for removing CO, HC and NO pollutants.
Background
The pollutants of diesel vehicles mainly include carbon monoxide (CO) and Hydrocarbons (HC) with incomplete fuel combustion, and sulfur dioxide (SO) as corrosive gas2) Irritant gas Nitrogen Oxides (NO)x) And Particulate Matter (PM) and the like. The discharge of pollutants causes great harm to the ecological environment and seriously harms the human health. Currently, there are many technologies for removing CO, HC and NO pollutants, such as Diesel Oxidation Catalysts (DOC), which mainly converts CO and HC in the tail gas of diesel vehicles into CO2And H2O, or alternatively converting part of NO to NO2. The technology is green and environment-friendly, has no secondary pollution, and has high removal efficiency of low-concentration pollutants, low energy consumption, simple process, small equipment floor area and low cost. The DOC mainly comprises four parts, namely a catalyst, a shell, a carrier and a vibration damping layer, wherein the catalyst plays a vital role in the catalytic oxidation process, and the catalyst is a main index for evaluating the performance of the DOC. However, when the catalyst is evaluated in a fixed bed reactor, a small amount of catalyst powder and quartz wool are blown to the rear system of the apparatus by the gas flow under the impact of the high-speed feeding gas flow and the carrier gas flow of the powder catalyst for a long time. The pipeline of the system is easily blocked, and after the pipeline is blocked, the pressure of the system rises suddenly, so that the experiment is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a catalyst activity evaluation device for removing CO, HC and NO pollutants, and aims to solve the technical problems.
In order to achieve the above object, the present invention provides a catalyst activity evaluation device for removing CO, HC and NO pollutants, comprising: the device comprises a filter, a gas mixing tank, a reaction furnace, a gas-liquid separator, a smoke probe installation pool and a smoke analyzer; the filter is connected to the gas mixing tank through a pipeline; the gas mixing tank is connected to the gas inlet end of the quartz reaction tube through a pipeline; the quartz reaction tube is arranged in the reaction furnace; the gas outlet end of the quartz reaction tube is connected to the gas-liquid separator through a pipeline, and the gas outlet end of the gas-liquid separator is connected to the smoke probe installation pool through a pipeline; the probe of the smoke gas analyzer is arranged in the smoke gas probe mounting pool; a quartz filter disc is arranged in the quartz reaction tube.
Preferably, heating belts are arranged on a pipeline between the gas mixing tank and the quartz reaction tube, a pipeline between the quartz reaction tube and the gas-liquid separator and a pipeline between the gas-liquid separator and the flue gas probe mounting pool.
Preferably, the quartz reaction tube is provided with an annular concave structure for supporting the quartz filter disc, and the quartz filter disc is provided with quartz wool.
Preferably, the reaction furnace is provided with a reaction furnace temperature control system, and the reaction furnace temperature control system is a thermocouple temperature control system.
Preferably, the upper end of the quartz reaction tube is provided with a three-way joint, the left end of the three-way joint is connected into the gas path pipeline, and the upper end of the three-way joint is connected into the N2The lower end of the gas inlet pipe is connected with the upper end of the quartz reaction tube; the lower end of the quartz reaction tube is provided with a two-way connector, and the two-way connector is connected with the gas outlet pipeline; and O-shaped rings are arranged among the three-way joint, the two-way joint and the quartz reaction tube.
Preferably, the smoke probe installation pool is connected with a tail gas absorption bottle through a pipeline.
Preferably, the filter is provided in plurality and is connected to the gas mixing tank through a pipe.
Preferably, a switching valve, a flowmeter and a one-way valve are sequentially arranged on a pipeline between the filter and the gas mixing tank.
Preferably, a precise pressure gauge is arranged on a pipeline between the gas mixing tank and the quartz reaction tube.
Preferably, a high-temperature resistant three-way valve is arranged on a pipeline between the quartz reaction tube and the gas-liquid separator and a pipeline between the gas-liquid separator and the flue gas probe installation pool; a needle valve is arranged at the liquid outlet end of the gas-liquid separator, and a condenser is arranged on the gas-liquid separator.
The utility model achieves the following beneficial effects: according to the performance evaluation device provided by the utility model, before the activity evaluation of the catalyst, the quartz reaction tube is taken out of the reaction furnace, a layer of quartz cotton is filled, then the catalyst is filled, then the quartz reaction tube is installed on the reaction furnace, when the preheating reaches a certain temperature, other raw material gases are opened for reaction, the concentration before and after the gas reaction is measured by a flue gas analyzer, and finally the tail gas is absorbed by a tail gas absorption bottle; through the quartz filter disc, partial catalyst powder and quartz wool can be intercepted, and subsequent pipelines are prevented from being blocked.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a device for evaluating the activity of a catalyst for removing CO, HC and NO pollutants according to the present invention;
FIG. 2 is a schematic view of an annular concave structure on a quartz reaction tube according to the present invention;
the reference numbers illustrate: 1-a filter; 2-switching valve; 3-a flow meter; 4-a one-way valve; 5-a gas mixing tank; 6-precision pressure gauge; 7-heating a belt; 8-quartz reaction tube; 9-controlling the temperature of the reaction furnace; 10-a reaction furnace; 11-quartz filter disc; 12-high temperature resistant three-way valve; 13-a gas-liquid separator; 14-needle type valves; 15-a smoke probe installation pool; 16-a flue gas analyzer; 17-tail gas absorption bottle; and (18) a condenser.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
As shown in fig. 1, a catalyst activity evaluation apparatus for removing CO, HC and NO pollutants is characterized by comprising a filter 1, a gas mixing tank 5, a reaction furnace 10, a gas-liquid separator 13, a flue gas probe installation pool 15 and a flue gas analyzer 16; the filter 1 is connected to the gas mixing tank 5 through a pipeline; the gas mixing tank 5 is connected to the gas inlet end of a quartz reaction tube 8 through a pipeline; the quartz reaction tube 8 is arranged in the reaction furnace 10; the gas outlet end of the quartz reaction tube 8 is connected to the gas-liquid separator 13 through a pipeline, and the gas outlet end of the gas-liquid separator 13 is connected to the smoke probe installation pool 15 through a pipeline; the probe of the flue gas analyzer 16 is arranged in the flue gas probe installation pool 15; a quartz filter disc 11 is arranged in the quartz reaction tube 8, and a layer of quartz cotton with the thickness of 5mm is arranged on the quartz filter disc 11; the smoke probe installation pool 15 is connected with a tail gas absorption bottle 17 through a pipeline and is used for absorbing tail gas generated in a test; a precision pressure gauge 6 is arranged on a pipeline between the gas mixing tank 5 and the quartz reaction tube 8, a reaction furnace temperature control system 9 is arranged on the reaction furnace 10, and the reaction furnace temperature control system 9 is a thermocouple temperature control system. The gas mixing tank 5 is a cylindrical sealed tank made of stainless steel, and the ratio of the height to the diameter is 2: 1.
In this embodiment, the heating tapes 7 are disposed on the pipeline between the gas mixing tank 5 and the quartz reaction tube 8, the pipeline between the quartz reaction tube 8 and the gas-liquid separator 13, and the pipeline between the gas-liquid separator 13 and the flue gas probe mounting pool 15.
In the present embodiment, as shown in fig. 2, an annular concave structure for supporting the quartz filter 11 is disposed on the quartz reaction tube 8. The annular concave structure is used for preventing the blowing-out of the catalyst or quartz wool to block the pipeline. The upper end of the quartz reaction tube 8 is provided with a three-way joint (not shown in the figure), the left end of the three-way joint is connected into a gas path pipeline, and the upper end of the three-way joint is connected into N2The lower end of the gas inlet pipe (not shown in the figure) is connected with the upper end of the quartz reaction tube 8; the lower end of the quartz reaction tube 8 is provided with a double-way joint (not shown in the figure), and the double-way joint is connected with an air outlet pipeline; o-shaped rings (not shown in the figure) are arranged between the three-way joint and the two-way joint and the quartz reaction tube 8.
In the present embodiment, the filter 1 is provided in plural numbers, and is connected to the gas mixing tank 5 through pipes, respectively. And a switching valve 2, a flowmeter 3 and a one-way valve 4 are sequentially arranged on a pipeline between the filter 1 and the gas mixing tank 5.
In the embodiment, a high temperature resistant three-way valve 12 is arranged on the pipeline between the quartz reaction tube 8 and the gas-liquid separator 13 and the pipeline between the gas-liquid separator 13 and the flue gas probe installation pool 15; a needle valve 14 is provided at the outlet end of the gas-liquid separator 13, and a condenser 18 is provided at the gas-liquid separator 13.
The working principle of the utility model is as follows: before the activity evaluation of the catalyst, the quartz reaction tube 8 is taken out of the reaction furnace 10, a layer of quartz cotton is filled, then 0.5g of catalyst is filled, then the quartz reaction tube 8 is installed on the reaction furnace 10, the reaction furnace temperature control system 9, namely a thermocouple temperature control system, is inserted into the reaction area of the quartz reaction tube 8 through a quartz thermocouple sleeve, the temperature is raised, N is introduced into the reaction area, and the reaction area is heated2Preheating is carried out. When a certain temperature is reached, other raw material gases are opened for reaction, and the total flow of the gases is kept at 500 ml/min. At this time, the concentration of the gas before and after the reaction is measured by the flue gas analyzer 16, and finally the tail gas is absorbed by the tail gas absorption bottle 17.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A catalyst activity evaluation device for removing CO, HC and NO pollutants is characterized by comprising a filter (1), a gas mixing tank (5), a reaction furnace (10), a gas-liquid separator (13), a smoke probe installation pool (15) and a smoke analyzer (16);
the filter (1) is connected to the gas mixing tank (5) by a pipe; the gas mixing tank (5) is connected to the gas inlet end of the quartz reaction tube (8) through a pipeline; the quartz reaction tube (8) is arranged in the reaction furnace (10); the gas outlet end of the quartz reaction tube (8) is connected to the gas-liquid separator (13) through a pipeline, and the gas outlet end of the gas-liquid separator (13) is connected to the smoke probe installation pool (15) through a pipeline; the probe of the smoke gas analyzer (16) is arranged in the smoke gas probe mounting pool (15); a quartz filter disc (11) is arranged in the quartz reaction tube (8).
2. The apparatus for evaluating the activity of a catalyst for removing CO, HC and NO pollutants as claimed in claim 1, wherein: heating belts (7) are arranged on a pipeline between the gas mixing tank (5) and the quartz reaction tube (8), a pipeline between the quartz reaction tube (8) and the gas-liquid separator (13) and a pipeline between the gas-liquid separator (13) and the smoke probe mounting pool (15).
3. The apparatus for evaluating the activity of a catalyst for removing CO, HC and NO pollutants as claimed in claim 1, wherein: the quartz reaction tube (8) is provided with an annular concave structure for supporting the quartz filter disc (11), and the quartz filter disc (11) is provided with quartz cotton.
4. The apparatus for evaluating the activity of a catalyst for removing CO, HC and NO pollutants as claimed in claim 1, wherein: the reaction furnace (10) is provided with a reaction furnace temperature control system (9), and the reaction furnace temperature control system (9) is a thermocouple temperature control system.
5. The apparatus for evaluating the activity of a catalyst for removing CO, HC and NO pollutants as claimed in claim 1, wherein: the upper end of the quartz reaction tube (8) is provided with a three-way joint, the left end of the three-way joint is connected into a gas path pipeline, and the upper end of the three-way joint is connected into N2The lower end of the gas inlet pipe is connected with the upper end of the quartz reaction tube (8); the lower end of the quartz reaction tube (8) is provided with a double-way joint, and the double-way joint is connected with an air outlet pipeline; o-shaped rings are arranged between the three-way joint, the two-way joint and the quartz reaction tube (8).
6. The apparatus for evaluating the activity of a catalyst for removing CO, HC and NO pollutants as claimed in claim 1, wherein: the smoke probe installation pool (15) is connected with a tail gas absorption bottle (17) through a pipeline.
7. The apparatus for evaluating the activity of a catalyst for removing CO, HC and NO pollutants as claimed in claim 1, wherein: the number of the filters (1) is multiple, and the filters are respectively connected to the gas mixing tank (5) through pipelines.
8. The apparatus for evaluating the activity of a catalyst for removing CO, HC and NO pollutants as claimed in claim 1, wherein: and a switching valve (2), a flowmeter (3) and a one-way valve (4) are sequentially arranged on a pipeline between the filter (1) and the gas mixing tank (5).
9. The apparatus for evaluating the activity of a catalyst for removing CO, HC and NO pollutants as claimed in claim 1, wherein: and a precision pressure gauge (6) is arranged on a pipeline between the gas mixing tank (5) and the quartz reaction tube (8).
10. The apparatus for evaluating the activity of a catalyst for removing CO, HC and NO pollutants as claimed in claim 1, wherein: a high-temperature resistant three-way valve (12) is arranged on a pipeline between the quartz reaction tube (8) and the gas-liquid separator (13) and a pipeline between the gas-liquid separator (13) and the flue gas probe installation pool (15); a needle valve (14) is arranged at the liquid outlet end of the gas-liquid separator (13), and a condenser (18) is arranged on the gas-liquid separator (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122648957.5U CN216449498U (en) | 2021-11-01 | 2021-11-01 | Catalyst activity evaluation device for removing CO, HC and NO pollutants |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122648957.5U CN216449498U (en) | 2021-11-01 | 2021-11-01 | Catalyst activity evaluation device for removing CO, HC and NO pollutants |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216449498U true CN216449498U (en) | 2022-05-06 |
Family
ID=81351103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122648957.5U Active CN216449498U (en) | 2021-11-01 | 2021-11-01 | Catalyst activity evaluation device for removing CO, HC and NO pollutants |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216449498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115372538A (en) * | 2022-07-15 | 2022-11-22 | 河钢集团有限公司 | Equipment and method for field test of catalytic performance of carbon monoxide catalyst |
-
2021
- 2021-11-01 CN CN202122648957.5U patent/CN216449498U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115372538A (en) * | 2022-07-15 | 2022-11-22 | 河钢集团有限公司 | Equipment and method for field test of catalytic performance of carbon monoxide catalyst |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216449498U (en) | Catalyst activity evaluation device for removing CO, HC and NO pollutants | |
| US8899020B2 (en) | Apparatus and method for assisting selective catalytic reduction | |
| CN111589288A (en) | Desulfurization, denitrification and white removal device for ultralow emission of flue gas of sintering machine and process thereof | |
| CN110465187A (en) | A kind of micro-wave nonpolar ultraviolet catalytic reduction and desulfurization denitrification apparatus | |
| CN202460474U (en) | Integral desulfurization and denitration complete device by catalytic reduction ammonia method for small and medium boilers | |
| CN204357536U (en) | A kind of exhaust treatment system | |
| CN113551722A (en) | A flowmeter that is used for motor vehicle ring to examine station that has a tail gas cleanup function | |
| CN216484829U (en) | Performance test platform for diesel vehicle tail gas treatment catalyst | |
| CN203705415U (en) | Evaluation device for denitration catalyst | |
| CN106178946A (en) | The implementation method of integral embedded type flue gas during smelting denitrating system | |
| CN209663032U (en) | A kind of jet dynamic control flue gas SCR denitration system | |
| CN206531829U (en) | A kind of SCR catalyst Performance Test System | |
| CN103769077B (en) | A kind of chromium oxide catalyst and preparation thereof and application | |
| CN110541743A (en) | Spiral diesel engine tail gas purification device and purification method thereof | |
| CN113413744B (en) | Sleeve type ammonia and CO combined denitration system device, method and application | |
| CN212440789U (en) | Flue gas denitration device in light hydrocarbon cracking device | |
| CN212440760U (en) | Denitration and dust removal catalytic cloth bag system | |
| CN216484830U (en) | Device for quickly loading and unloading catalyst for denitration reaction and corresponding catalyst evaluation | |
| CN210090398U (en) | Denitration catalyst capability test device | |
| CN210799099U (en) | Spiral diesel engine tail gas purification device | |
| CN206300931U (en) | Visualization catalyst activity test device | |
| CN111921372A (en) | Flue gas treatment device and flue gas treatment method | |
| CN207591591U (en) | A kind of coke oven flue gas denitrating system | |
| CN216537747U (en) | Reactor of powder SCR denitration catalyst | |
| CN217068388U (en) | Coal fired power plant flue gas low temperature denitrification facility |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |