CN204154692U - A kind of Novel SCR catalyst test device - Google Patents
A kind of Novel SCR catalyst test device Download PDFInfo
- Publication number
- CN204154692U CN204154692U CN201420647864.8U CN201420647864U CN204154692U CN 204154692 U CN204154692 U CN 204154692U CN 201420647864 U CN201420647864 U CN 201420647864U CN 204154692 U CN204154692 U CN 204154692U
- Authority
- CN
- China
- Prior art keywords
- gas
- scr
- catalyzer
- distribution instrument
- temperature
- 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
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model provides a kind of Novel SCR catalyst test device, comprises many gas cylinders group, valve, dynamic gas distribution instrument, SCR reactor, temperature programme controller, absorbs NH
3phosphoric acid bottle, NOx analyser, controls flow software, gas recycling can.Many gas cylinders group is connected with dynamic gas distribution instrument by valve, dynamic gas distribution instrument one end is connected with computing machine, and the other end is connected with SCR reactor, and variable concentrations flue gas is delivered to the catalyst layer in SCR reactor, SCR reactor then controls heating-up temperature by temperature programme controller, is connected with thereafter and absorbs NH
3phosphoric acid bottle, phosphoric acid bottle is then connected with NOx analyser and gas recycling can.This proving installation Structure and Process is simple, easy to operate, can follow-on test condition of different temperatures, different N H
3/ NO is different O when
2the denitration efficiency of SCR catalyst under content condition, controls the flow of gas with various quickly and easily by controlling flow software.
Description
Technical field
The utility model relates to a kind of Novel SCR catalyst test device, can follow-on test condition of different temperatures, different N H
3/ NO is different O when
2the denitration efficiency of SCR catalyst under content condition.
Background technology
NOx, as one of atmosphere pollution, mainly forms acid rain, photo-chemical smog and damages the ozone layer, in addition NO
xalso have more serious harm to the respiratory system of human body and nerve center, this has become a day by day serious global problem.Therefore the emission reduction tasks of oxides of nitrogen is very urgent.
Selective catalytic reduction reaction (SCR) method is with the most use in current denitrating flue gas, and its technology is at NH
3with under the effect of catalyzer, by NO and NO
2change into harmless N
2and H
2o, SCR technology can reach very high NO
xdenitration rate (85 ~ 95%), flue gas NO
xemission level can be reduced to 100-200mg/Nm
3.SCR technology, due to advantages such as huge reduction potential, reactionless accessory substance generations, is considered to NO the most thoroughly
xemission-reduction technology, its gordian technique is catalyzer, and how detecting catalyst performance has just become a very important problem.
Summary of the invention
Technical problem to be solved in the utility model is, for the deficiencies in the prior art, provides a kind of Novel SCR catalyst test device, and Structure and Process is simple, easy to operate, can follow-on test condition of different temperatures, different N H
3/ NO is different O when
2the denitration efficiency of SCR catalyst under content condition.
The technical scheme that the utility model adopts for its technical matters of solution: comprise many gas cylinders group, valve, dynamic gas distribution instrument, SCR reactor, temperature programme controller, absorbs NH
3phosphoric acid bottle, NOx analyser, controls flow software, gas recycling can.Many gas cylinders group is connected with dynamic gas distribution instrument by valve, dynamic gas distribution instrument one end is connected with computing machine, and the other end is connected with SCR reactor, and variable concentrations flue gas is delivered to the catalyst layer in SCR reactor, SCR reactor then controls heating-up temperature by temperature programme controller, is connected with thereafter and absorbs NH
3phosphoric acid bottle, phosphoric acid bottle is then connected with NOx analyser and gas recycling can.
Many gas cylinders group is by NO/N
2, O
2/ N
2, NH
3/ N
2, N
2four kinds of gas cylinder compositions, its effect is simulation kiln gas composition and provides reductive agent NH
3, N
2as balanced gas.
Dynamic gas distribution instrument comprises 4 CS200 type mass flow controllers, 4 valves, stainless steel reinforced concrete gas tank and thermocouple temperature display, 4 CS200 type mass flow controller one end by 4 valves respectively with NO/N
2, O
2/ N
2, NH
3/ N
2, N
2four kinds of gas cylinders are connected, and the other end is connected with stainless steel reinforced concrete gas tank by 4 valves.4 mass flow controllers are connected with computing machine again, and control the size of its flow by the software on computing machine, therefore regulate different NH by flow control software
3/ N
2ratio or different O
2content.
SCR reactor is made up of vertical tubular furnace, quartz reactor, catalyzer and thermopair, vertical tubular furnace is used for heating to catalyzer and reaction flue gas, quartz reactor is mainly used for placing catalyzer, thermopair one end is inserted in catalyzer, the other end is connected with the thermocouple temperature display on dynamic gas distribution instrument, and the temperature of catalyzer can show on dynamic gas distribution instrument.The heating-up temperature of vertical tubular furnace is controlled by temperature programme instrument, therefore, a program temperature is set by temperature programme instrument, measures according to thermopair the denitration efficiency that the temperature come and the NOx concentration now on NOx analyser just can draw catalyzer under condition of different temperatures.
Absorb the phosphoric acid bottle of NH3, be mainly used in absorbing unreacted NH completely
3, prevent remaining NH
3enter into NOx analyser to cause corroding instrument.
NOx analyser is used for NO and NO before and after analytical reactions
2concentration, and added a filter paper at the gas access place of NOx analyser, prevented the materials such as dust from entering in instrument.
Recycling can is used for reclaiming through the reacted remaining gas of SCR denitration, avoids remaining toxic gas to be directly discharged in air.
During work, open NOx analyser power switch, allow instrument carry out preheating 30min; Open dynamic gas distribution instrument power switch; Open the flow control software on computing machine, by the flow number Input Software relevant position of computed in advance often kind gas; Open the valve after many gas cylinders group and the valve on dynamic gas distribution instrument; After a period of stabilisation, the concentration C of the NOx on NOx analyser is recorded
0; After stablizing the time, close all valves on dynamic gas distribution instrument, the catalyzer of certain volume is loaded in quartz reactor; Heating schedule is set by temperature programme controller; Open four valves on dynamic gas distribution instrument; Now, catalytic reaction starts to carry out, the NOx concentration C on record dynamic gas distribution instrument on the temperature of thermocouple temperature display and the NOx analyser of correspondence
t, then when temperature is t, the denitration rate formula of catalyzer is:
Wt%=(C
0 - C
t) / C
0 * 100%
(C
0represent initial NOx concentration under not having catalysts conditions, NOx concentration when Ct represents that temperature of reaction is t)
Therefore, along with the change of temperature, the denitration rate of corresponding catalyzer in like manner also all can be calculated.And by the adjustable NH of flow control software on computing machine
3/ N
2, NO/N
2or O
2the flow of/N2, thus can realize at different N H
3/ NO is O when
2the denitration rate test of the catalyzer under content condition.
The beneficial effects of the utility model:
(1) can the denitration rate of SCR catalyst under follow-on test condition of different temperatures;
(2) different N H can be tested
3/ NO ratio and different O
2the denitration rate of catalyzer under content condition;
(3) flow of gas with various is controlled quickly and easily by controlling flow software;
(4) can accurately catalysts temperature of reaction at that time in time by thermopair to be inserted in catalyzer;
(5) Structure and Process is simple, easy to operate.
Accompanying drawing explanation
Fig. 1 is a kind of schematic diagram of Novel SCR catalyst test device.
In figure, 1-1 is N
2gas cylinder, 1-2 is O
2/ N
2gas cylinder, 1-3 is NO/N
2gas cylinder, 1-4 is NH
3/ N
2gas cylinder, 2 is valve, and 3-1 is CS200 type mass flow controller, and 3-2 is stainless steel reinforced concrete gas tank, 3-3 is thermocouple temperature display, and 4-1 is vertical tubular furnace, and 4-2 is quartz reactor, and 4-3 is catalyzer, 4-4 is thermopair, and 5 is temperature programme controller, and 6 for absorbing NH
3phosphoric acid bottle, 7 is NOx analyser, and 8 is gas recycling can, and 9 is computing machine.
Specific embodiments
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The present embodiment provides a kind of Novel SCR catalyst test device, comprises many gas cylinders group 1, valve 2, dynamic gas distribution instrument 3, SCR reactor 4, temperature programme controller 5, absorbs NH
3phosphoric acid bottle 6, NOx analyser 7, gas recycling can 8, computing machine 9.Many gas cylinders group 1 is connected with dynamic gas distribution instrument 3 by valve 2, dynamic gas distribution instrument 3 one end is connected with computing machine 9, the other end is connected with SCR reactor 4, variable concentrations flue gas is delivered to the catalyzer 4-3 layer of SCR reactor 4 li, SCR reactor 4 controls heating-up temperature by temperature programme controller 5, is connected with thereafter and absorbs NH
3phosphoric acid bottle 6,6, phosphoric acid bottle is connected with NOx analyser 7 and gas recycling can 8.
Many gas cylinders group 1 is by N
2gas cylinder 1-1, O
2/ N
2gas cylinder 1-2, NO/N
2gas cylinder 1-3, NH
3/ N
2gas cylinder 1-4 tetra-kinds of gas cylinder compositions, its effect is simulation kiln gas composition and provides reductive agent NH
3, N
2as balanced gas.
Dynamic gas distribution instrument 3 comprises 4 CS200 type mass flow controller 3-1,4 valves 2, stainless steel reinforced concrete gas tank 3-2 and thermocouple temperature display 3-3,4 CS200 type mass flow controller 3-1 one end by 4 valves 2 respectively with N
2gas cylinder 1-1, O
2/ N
2gas cylinder 1-2, NO/N
2gas cylinder 1-3, NH
3/ N
2gas cylinder 1-4 tetra-kinds of gas cylinders are connected, and the other end is connected with stainless steel reinforced concrete gas tank 3-2 by 4 valves 2.4 mass flow controller 3-1 are connected with computing machine 8 again, and control the size of its flow by the software on computing machine 8, therefore regulate different NH by flow control software
3/ N
2ratio or different O
2content.
SCR reactor 4 is made up of vertical tubular furnace 4-1, quartz reactor 4-2, catalyzer 4-3 and thermopair 4-4, vertical tubular furnace 4-1 is used for heating to catalyzer 4-3 and reaction flue gas, quartz reactor 4-2 is mainly used for placing catalyzer 4-3, thermopair 4-4 one end is inserted in catalyzer 4-3, the other end is connected with the thermocouple temperature display 3-3 on dynamic gas distribution instrument 3, and the temperature of catalyzer 4-3 can show on dynamic gas distribution instrument 3.The heating-up temperature of vertical tubular furnace 4-1 is controlled by temperature programme instrument 5, therefore, by temperature programme instrument 5, a program temperature is set, according to thermopair 4-4 measure the temperature come and now on NOx analyser the NOx concentration of 7 just can draw the denitration efficiency of catalyzer under condition of different temperatures.
Absorb the phosphoric acid bottle 6 of NH3, be mainly used in absorbing unreacted NH completely
3, prevent remaining NH
3enter into NOx analyser to cause corroding instrument.
NOx analyser 7 is used for NO and NO before and after analytical reactions
2concentration, and added a filter paper at the gas access place of NOx analyser 7, prevented the materials such as dust from entering in instrument.
Gas recycling can 8 is used for reclaiming the remaining gas after SCR denitration reactor 4, avoids remaining toxic gas to be directly discharged in air.
During work, open NOx analyser 7 power switch, allow instrument carry out preheating 30min; Open dynamic gas distribution instrument 3 power switch; Open the flow control software on computing machine 8, by the flow number Input Software relevant position of computed in advance often kind gas; Open the valve 2 on the valve 2 after many gas cylinders group 1 and dynamic gas distribution instrument 3; After a period of stabilisation, the concentration C of the NOx on NOx analyser 7 is recorded
0; After stablizing the time, close all valves on dynamic gas distribution instrument 3, the catalyzer 4-3 of certain volume is loaded in quartz reactor 4-2; Heating schedule is set by temperature programme controller 5; Open four valves 2 on dynamic gas distribution instrument 3; Now, catalytic reaction starts to carry out, the NOx concentration C on record dynamic gas distribution instrument 3 on the temperature of thermocouple temperature display 3-3 and the NOx analyser 7 of correspondence
t, then when temperature is t, the denitration rate formula of catalyzer is:
Wt%=(C
0 - C
t) / C
0 * 100%
(C
0represent initial NOx concentration under not having catalysts conditions, NOx concentration when Ct represents that temperature of reaction is t).
Therefore, along with the change of temperature, the denitration rate of corresponding catalyzer in like manner also all can be calculated.And by the adjustable NH of flow control software on computing machine 8
3/ N
2, NO/N
2or O
2the flow of/N2, thus can realize at different N H
3/ NO is O when
2the denitration rate test of the catalyzer under content condition.
Claims (3)
1. a Novel SCR catalyst test device, is characterized in that: comprise many gas cylinders group, valve, dynamic gas distribution instrument, SCR reactor, temperature programme controller, absorbs NH
3phosphoric acid bottle, NOx analyser, controls flow software, gas recycling can; Many gas cylinders group is connected with dynamic gas distribution instrument by valve, dynamic gas distribution instrument one end is connected with computing machine, and the other end is connected with SCR reactor, and variable concentrations flue gas is delivered to the catalyst layer in SCR reactor, SCR reactor then controls heating-up temperature by temperature programme controller, is connected with thereafter and absorbs NH
3phosphoric acid bottle, phosphoric acid bottle is then connected with NOx analyser and gas recycling can.
2. a kind of Novel SCR catalyst test device according to claim 1, is characterized in that: above-mentioned many gas cylinders group is by NO/N
2, O
2/ N
2, NH
3/ N
2, N
2four kinds of gas cylinder compositions, its effect is simulation kiln gas composition and provides reductive agent NH
3, N
2as balanced gas.
3. a kind of Novel SCR catalyst test device according to claim 1, it is characterized in that: above-mentioned SCR reactor is made up of vertical tubular furnace, quartz reactor, catalyzer and thermopair, vertical tubular furnace is used for heating to catalyzer and reaction flue gas, quartz reactor is mainly used for placing catalyzer, thermopair one end is inserted in catalyzer, and the other end is connected with the thermocouple temperature display on dynamic gas distribution instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647864.8U CN204154692U (en) | 2014-11-03 | 2014-11-03 | A kind of Novel SCR catalyst test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647864.8U CN204154692U (en) | 2014-11-03 | 2014-11-03 | A kind of Novel SCR catalyst test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204154692U true CN204154692U (en) | 2015-02-11 |
Family
ID=52512796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420647864.8U Active CN204154692U (en) | 2014-11-03 | 2014-11-03 | A kind of Novel SCR catalyst test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204154692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682923A (en) * | 2018-12-17 | 2019-04-26 | 中国科学院过程工程研究所 | A kind of full-scale SCR denitration evaluation system and method |
-
2014
- 2014-11-03 CN CN201420647864.8U patent/CN204154692U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682923A (en) * | 2018-12-17 | 2019-04-26 | 中国科学院过程工程研究所 | A kind of full-scale SCR denitration evaluation system and method |
| CN109682923B (en) * | 2018-12-17 | 2021-03-12 | 中国科学院过程工程研究所 | Full-size SCR denitration catalyst evaluation system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105327698B (en) | Using titanium-containing blast furnace slag as the preparation method of the Novel SCR catalyst for denitrating flue gas of carrier | |
| CN102407113A (en) | Microwave catalyst and application method thereof | |
| CN103926370B (en) | The device and method of the denitration of a kind of association evaluation catalyzer and demercuration performance | |
| CN104965050A (en) | Full-size flue gas denitrification catalytic performance detecting device and method | |
| CN104360007A (en) | Novel SCR catalyst testing device | |
| CN102565287A (en) | Evaluation device for coal-fired flue gas pollutant sorbent and application thereof | |
| CN106853327B (en) | Low-temperature flue gas desulfurization and denitrification integrated method and device | |
| CN105665032B (en) | Denitrification catalyst module hardening bath and method for curing | |
| CN104001497B (en) | A kind of wide temperature window denitrating catalyst and its preparation method and application | |
| CN203405452U (en) | Catalyst activity detecting device of SCR (Selective Catalytic Reduction) de-nitration system | |
| CN106423146A (en) | SCR (selective catalytic reduction) catalyst prepared from red mud taken as carrier and loaded with Mn and Ce and preparation method of SCR catalyst | |
| CN203455325U (en) | Device for evaluating property of SCR (Selective Catalytic Reduction) denitrification catalyst | |
| CN204154692U (en) | A kind of Novel SCR catalyst test device | |
| CN104880535B (en) | Method for monitoring concentration of escaped ammonia | |
| CN102407071B (en) | Denitration method utilizing microwave catalytic selective reduction reaction | |
| CN105396626A (en) | Regeneration liquid of SCR denitration catalyst and regeneration method of SCR denitration catalyst | |
| CN104368331B (en) | A kind of honeycomb fashion SCR denitration end gardening liquid and hardening process | |
| CN103990480B (en) | Rare Earth Polyoxometalates doped iron base catalyst and the application in denitrating flue gas thereof | |
| CN204107347U (en) | The anti-NH of constant temperature 3the SCR method distributing instrument of corrosion | |
| CN203803353U (en) | Simulation testing device for co-processing multiple pollutants by adopting active coke process | |
| CN110026082A (en) | A kind of ozone injects the kiln gas denitrification apparatus and method of auxiliary SCR before ammonia | |
| CN209764642U (en) | Desulfurization catalyst evaluation device | |
| CN105115924B (en) | A kind of method and device of test carbon-supported catalyst demercuration performance | |
| CN102974359A (en) | Simultaneous desulfurization and denitration catalyst and preparation method thereof | |
| CN110261546A (en) | The experimental rig and method of active coke desulphurizing and denitration performance can be tested simultaneously |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 224051 Yancheng City environmental protection industrial park, No. five, No. 1 road, Jiangsu Patentee after: Jiangsu Zhongke Energy Saving & Environmental Protection Technology Co., Ltd. Address before: 224051 Yancheng City environmental protection industrial park, No. five, No. 1 road, Jiangsu Patentee before: Jiangsu Kehang Environment Engineering Technology Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 224051 Yancheng City environmental protection industrial park, No. five, No. 1 road, Jiangsu Patentee after: Environmental protection Limited by Share Ltd of Jiangsu branch Address before: 224051 Yancheng City environmental protection industrial park, No. five, No. 1 road, Jiangsu Patentee before: Jiangsu Zhongke Energy Saving & Environmental Protection Technology Co., Ltd. |