CN103926370B - The device and method of the denitration of a kind of association evaluation catalyzer and demercuration performance - Google Patents
The device and method of the denitration of a kind of association evaluation catalyzer and demercuration performance Download PDFInfo
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- CN103926370B CN103926370B CN201310711000.8A CN201310711000A CN103926370B CN 103926370 B CN103926370 B CN 103926370B CN 201310711000 A CN201310711000 A CN 201310711000A CN 103926370 B CN103926370 B CN 103926370B
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Abstract
The object of the present invention is to provide the device and method of the denitration of a kind of association evaluation catalyzer and demercuration performance.This device comprises pipeline I ~ VII, reduction valve, filtrator, mass flowmeter, retaining valve, preheating mixer, electric furnace, tee ball valve I ~ III, flue gas analyzer and mercury analyzer, and has the catalytic reactor of two air intake openings and a gas outlet.By producing the flue gas of different ratio, simulate the actual state of factory.By changing different types of catalyzer, select for specific denitrating flue gas and all good catalyzer of demercuration effect.
Description
Technical field
The invention belongs to and detect for the denitration activity of catalyzer in coal-burning power plant's denitration demercuration system and the technical field of mercury oxidation activity
Background technology
The atmosphere pollution of nitrogen oxide NOx and Gong Shi coal-burning power plant primary discharge, the discharge of oxides of nitrogen can cause acid rain, the environmental problem such as greenhouse effect and depletion of the ozone layer, serious harm human health and social development.
National environmental protection portion and State Administration for Quality Supervision and Inspection and Quarantine combine and have issued GB13223-2011 fossil-fuel power plant atmospheric pollutant emission standard, mark exact definition: from 1 day January in 2015, the mercury and mercuric compounds pollutant emission limit (being no more than 30 μ g/Nm) that in coal-burning boiler execute file, table 1 specifies, the mercury emissions that the fossil-fuel power plant atmospheric pollutant emission standard (GB13223-2011) of the up-to-date promulgation of China defines coal-burning boiler is restricted to 0.03mg/m
3, along with improving constantly of environmental requirement, from now on also will be more and more stricter for the oxides of nitrogen of coal-burning power plant of China and the emission standard of mercury, current most domestic coal-burning power plant gradually and the gradual perfection installation of out of stock system, and adopt out of stock technology main in the world at present, i.e. SCR (SCR) denitration technology, and catalyzer is the core of SCR technology, the catalyzer developed based on the out of stock technology of SCR also emerges in an endless stream, be directed to the burning speciality of the different categories of coal of China and the out of stock catalyzer developed also in the middle of studying and improving further.
Mercury in coal-fired plant flue gas is mainly with gaseous elemental mercury (Hg
0) etc. form exist.Elemental Mercury removes difficult point, and main demercuration adsorbent carries out Adsorption at present.There are some researches show, partially catalyzed agent in coal-burning power plant's denitrating system has oxidability to Elemental Mercury, elemental mercury oxidation can be become mercuric compound, this just makes when not newly increasing demercuration equipment, utilizes existing denitrification apparatus by the elemental mercury oxidation that removes more difficult in flue gas and then is removed by follow-up wet desulphurization equipment.But at present denitrating catalyst is of a great variety, flue gas composition is complicated, on earth which kind of catalyzer simultaneously combining efficient denitration activity and there is stronger elemental mercury oxidation activity need further research.
Summary of the invention
The object of the present invention is to provide a kind of association evaluation device with detection catalyzer denitration and mercury oxidation activity simultaneously.
The technical scheme adopted for realizing the object of the invention is such, the device of the denitration of a kind of association evaluation catalyzer and demercuration performance, comprise pipeline I ~ VII, preheating mixer, electric furnace, tee ball valve I ~ III, flue gas analyzer and mercury analyzer, and there is the catalytic reactor of two air intake openings and a gas outlet.
The import of described pipeline I connects NH
3source of the gas, outlet connect the first air intake opening of catalytic reactor.
The import of described pipeline II connects O
2source of the gas, outlet connect the air intake opening of preheating mixer.The air intake opening that import connects NO source of the gas, outlet connects preheating mixer of described pipeline III.The import of described pipeline IV connects N
2source of the gas, outlet connect the air intake opening of preheating mixer.The air intake opening that import connects HCl source of the gas, outlet connects preheating mixer of described pipeline V.The import of described pipeline VI connects N
2source of the gas, outlet connect the air intake opening of the U-shaped quartz ampoule of mercury osmos tube are housed, described in mercury osmos tube is housed U-shaped quartz ampoule gas outlet be communicated with the air intake opening of preheating mixer by pipeline VIII.The import of described pipeline VII connects SO
2source of the gas, outlet connect the air intake opening of preheating mixer.Described pipeline I ~ VII is all provided with retaining valve.
The gas outlet of described preheating mixer is by the A of pipeline and tee ball valve I
1mouth is communicated with.The A of described tee ball valve I
2mouthful by the B of pipeline and tee ball valve II
1mouth is communicated with.The A of described tee ball valve I
3mouth is communicated with the second air intake opening of catalytic reactor by pipeline.
Catalyst filling in described catalytic reactor, the gas outlet of described catalytic reactor is by the C of pipeline and tee ball valve III
1mouth is communicated with.The C of described tee ball valve III
3mouth connects described mercury analyzer by pipeline.The C of described tee ball valve III
2mouth is by the B of pipeline connecting tee ball valve II
2mouthful.The B of described tee ball valve II
3mouth connects described flue gas analyzer by pipeline, and described tee ball valve III and tee ball valve II are T-shaped tee ball valve.
Further, described in mercury osmos tube is housed U-shaped quartz ampoule immerse in oil bath, electric furnace put into by described catalytic reactor.
Technique effect of the present invention is mathematical, and this device can produce the flue gas of different ratio, simulates the actual state of factory.By changing different types of catalyzer, select for specific denitrating flue gas and all good catalyzer of demercuration effect.
Another object of the present invention is openly a kind of based on the association evaluation catalyzer denitration of said apparatus and the method for demercuration performance, comprises the following steps:
1) adjust tee ball valve I, make A
1mouth and A
2mouth is communicated with, A
3mouth is closed, and adjustment tee ball valve II, makes B
1mouth, B
2mouth and B
3mouth is interconnected, and adjustment tee ball valve III makes C
2mouth and C
3mouth is communicated with, C
1mouth is closed.
2) by pipeline II ~ VIII, in preheating mixer, O is passed into
2, NO, N
2, mercuryvapour, HCl and SO
2gas, described flue gas analyzer detects the initial concentration C of NO
nO, in, described mercury analyzer detects the initial concentration [Hg of mercury vapour
0]
in.
3) adjust tee ball valve I, make A
1mouth and A
3mouth is communicated with, A
1mouth is closed, and adjustment tee ball valve II, makes B
2mouth and B
3mouth is communicated with, B
1mouth is closed.Adjustment tee ball valve III, makes C
1mouth, C
2mouth and C
3mouth is interconnected.
4) pipeline I passes into NH in preheating mixer
3gas, by pipeline II ~ VIII, passes into O in preheating mixer
2, NO, N
2, mercuryvapour, HCl and SO
2gas.
5) described flue gas analyzer detects the concentration C of NO
nO, out, described mercury analyzer detects the concentration [Hg of mercury vapour
0]
out.
Calculate the removal efficiency of NO:
Calculate Hg
0oxygenation efficiency:
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the legend in Fig. 1.
In figure: 1-pipeline I, 2-pipeline II, 3-pipeline III, 4-pipeline IV, 5-pipeline V, 6-pipeline VI, 7-pipeline VII, 8-preheating mixer, 9-tee ball valve I, 10-tee ball valve II, 11-tee ball valve III, 12-catalytic reactor, 13-catalyzer, 14-electric furnace, 15-flue gas analyzer, 16-mercury analyzer, 17-tensimeter, 18-reduction valve, 19-filtrator, 20-mass flowmeter, 21-oil bath, 22-retaining valve, 23-is equipped with the U-shaped quartz ampoule of mercury osmos tube, 24-pipeline VIII.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described, but should not be construed the above-mentioned subject area of the present invention and be only limitted to following embodiment.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and customary means, make various replacement and change, all should be included in protection scope of the present invention.
Embodiment 1:
A device for the denitration of association evaluation catalyzer and demercuration performance, comprises pipeline I ~ VII, preheating mixer 8, tee ball valve I ~ III, flue gas analyzer 15 and mercury analyzer 16, and has the catalytic reactor 12 of two air intake openings and a gas outlet.Catalytic reactor 12 is containers of an inner containing catalyst.The gas flow entered from any one air intake opening of catalytic reactor 12, after catalyzer (being usually fixed on carrier), is discharged from gas outlet.
The import of described pipeline I 1 connects NH
3source of the gas, outlet connect the first air intake opening of catalytic reactor 12.
The import of described pipeline II 2 connects O
2source of the gas, outlet connect the air intake opening of preheating mixer 8.The air intake opening that import connects NO source of the gas, outlet connects preheating mixer 8 of described pipeline III 3.The import of described pipeline IV 4 connects N
2source of the gas, outlet connect the air intake opening of preheating mixer 8.The air intake opening that import connects HCl source of the gas, outlet connects preheating mixer 8 of described pipeline V 5.The import of described pipeline VI 6 connects N
2source of the gas, outlet connect the air intake opening of mercury osmos tube 23, and the gas outlet of described mercury osmos tube 23 is communicated with the air intake opening of preheating mixer 8 by pipeline VIII 24.The import of described pipeline VII 8 connects SO
2source of the gas, outlet connect the air intake opening of preheating mixer 8.The effect of each pipeline above-mentioned sends into mixed gas in catalytic reactor 12.
In embodiment, pipeline I ~ VIII is polyfluortetraethylene pipe.By adjusting the air inflow of each pipeline, the proportioning of each composition of mixed gas can be controlled easily.See Fig. 1 and Fig. 2, in pipeline I ~ V, VII, each pipeline is all provided with auxiliary equipment, namely from air intake opening to gas outlet, is provided with reduction valve 18, filtrator 19, mass flowmeter 20 and retaining valve 22 successively.The inlet side mouth of reduction valve 18 and outbound port respectively install a tensimeter 17.The break-make of pipeline can be controlled.Because pipeline VI 6 and pipeline VIII need to export mercuryvapour, so, at pipeline VI 6, reduction valve 18, filtrator 19 and mass flowmeter 20 are installed from air intake opening to gas outlet successively, pipeline VIII are installed retaining valve 22.By controlling the keying of the retaining valve 22 that each pipeline is installed,
During experiment, the gas of each pipeline all through reduction valve, filtrator and by mass flowmeter accurate flow control after send in described preheating mixer 8, form mixed gas.The gas outlet of described preheating mixer 8 is by the A of pipeline and tee ball valve I 9
1mouth is communicated with.The A of described tee ball valve I 9
2mouthful by the B of pipeline and tee ball valve II 10
1mouth is communicated with.The A of described tee ball valve I 9
3mouth is communicated with the second air intake opening of catalytic reactor 12 by pipeline.Described tee ball valve I 9 can be T-shaped tee ball valve, and can be also L-type tee ball valve, it has A
1, A
2and A
3three mouths of pipe.
Catalyst filling 13 in described catalytic reactor 12, the gas outlet of described catalytic reactor 12 is by the C of pipeline and tee ball valve III 11
1mouth is communicated with.The C of described tee ball valve III 11
3mouth connects described mercury analyzer 16 by pipeline.The C of described tee ball valve III 11
2mouth is by the B of pipeline connecting tee ball valve II 10
2mouthful.The B of described tee ball valve II 10
3mouth connects described flue gas analyzer 15 by pipeline, and described tee ball valve III 11 and tee ball valve II 10 are T-shaped tee ball valve, all have three mouth of pipe (B of tee ball valve II 10
1, B
2and B
3, the C of tee ball valve III 11
1, C
2and C
3).In embodiment, described mercury analyzer 16 measures the concentration of 0 valency mercury in flue gas, and described flue gas analyzer 15 measures the concentration of NO.
In embodiment.The described U-shaped quartz ampoule 23 that mercury osmos tube is housed immerses in oil bath 21, and namely the concentration of mercuryvapour can be controlled by the temperature adjusting oil bath 21.Electric furnace 14 put into by described catalytic reactor 12.
Embodiment 2:
The present embodiment adopts device described in embodiment 1, and the method for the denitration of association evaluation catalyzer and demercuration performance, comprises the following steps:
1) adjust tee ball valve I 9, make A
1mouth and A
2mouth is communicated with, A
3mouth is closed, and adjustment tee ball valve II 10, makes B
1mouth, B
2mouth and B
3mouth is interconnected, and adjustment tee ball valve III 11 makes C
2mouth and C
3mouth is communicated with, C
1mouth is closed.Namely to make in preheating mixer 8 mixed gas out without catalyzer 13, directly enter flue gas analyzer 15 and mercury analyzer 16.
2) by pipeline II ~ VIII, in preheating mixer 8, O is passed into
2, NO, N
2, mercuryvapour, HCl and SO
2gas.Now, the retaining valve 22 on pipeline I is closed.Described flue gas analyzer 15 detects the initial concentration C of NO
nO, in, described mercury analyzer 16 detects the initial concentration [Hg of mercury vapour
0]
in.As preferably, in preheating mixer 8, pass into O
2, NO, N
2, mercuryvapour, HCl and SO
2after gas a period of time, then read the parameter of mercury analyzer 16 and flue gas analyzer 15 display.Namely initial concentration [the Hg of the mercury vapour after stablizing is obtained
0]
inwith the initial concentration C of NO
nO, in.
3) adjust tee ball valve I 9, make A
1mouth and A
3mouth is communicated with, A
2mouth is closed, and adjustment tee ball valve II 10, makes B
2mouth and B
3mouth is communicated with, B
1mouth is closed.Adjustment tee ball valve III 11, makes C
1mouth, C
2mouth and C
3mouth is interconnected.Namely make mixed gas out in preheating mixer 8, and pipeline I ammonia is out through catalyzer 13.
4) pipeline I 1 passes into NH in catalytic reactor
3gas, by pipeline II ~ VIII, passes into O in preheating mixer 8
2, NO, N
2, mercuryvapour, HCl and SO
2gas.In embodiment, experimentally can need, carry out heatable catalytic reactor 12 by electric furnace 14 and control temperature of reaction.
5) described flue gas analyzer 15 detects the concentration C of NO
nO, out, described mercury analyzer 16 detects the concentration [Hg of mercury vapour
0]
out.As preferably, testing the temperature spot stable reaction of setting after 30 minutes, then reading C
nO, out[Hg
0]
out.
Calculate the removal efficiency of NO:
Calculate Hg
0oxygenation efficiency:
Claims (2)
1. the device of association evaluation catalyzer denitration and demercuration performance, it is characterized in that: comprise pipeline I ~ VII, preheating mixer (8), tee ball valve I ~ III, flue gas analyzer (15) and mercury analyzer (16), and there is the catalytic reactor (12) of two air intake openings and a gas outlet;
The import of described pipeline I (1) connects NH
3source of the gas, outlet connect the first air intake opening of catalytic reactor (12);
The import of described pipeline II (2) connects O
2source of the gas, outlet connect the air intake opening of preheating mixer (8); The air intake opening that import connects NO source of the gas, outlet connects preheating mixer (8) of described pipeline III (3); The import of described pipeline IV (4) connects N
2source of the gas, outlet connect the air intake opening of preheating mixer (8); The air intake opening that import connects HCl source of the gas, outlet connects preheating mixer (8) of described pipeline V (5); The import of described pipeline VI (6) connects N
2source of the gas, outlet connect the air intake opening of the U-shaped quartz ampoule (23) of mercury osmos tube are housed, described in the U-shaped quartz ampoule (23) of mercury osmos tube is housed gas outlet be communicated with the air intake opening of preheating mixer (8) by pipeline VIII (24); The import of described pipeline VII (7) connects SO
2source of the gas, outlet connect the air intake opening of preheating mixer (8); Described pipeline I ~ VII is all provided with retaining valve;
The gas outlet of described preheating mixer (8) is by the A of pipeline and tee ball valve I (9)
1mouth is communicated with; The A of described tee ball valve I (9)
2mouthful by the B of pipeline and tee ball valve II (10)
1mouth is communicated with; The A of described tee ball valve I (9)
3mouth is communicated with by second air intake opening of pipeline with catalytic reactor (12);
Described catalytic reactor (12) interior catalyst filling (13), the gas outlet of described catalytic reactor (12) is by the C of pipeline and tee ball valve III (11)
1mouth is communicated with; The C of described tee ball valve III (11)
3mouth connects described mercury analyzer (16) by pipeline; The C of described tee ball valve III (11)
2mouth is by the B of pipeline connecting tee ball valve II (10)
2mouthful; The B of described tee ball valve II (10)
3mouth connects described flue gas analyzer (15) by pipeline, and described tee ball valve III (11) and tee ball valve II (10) are T-shaped tee ball valve.
2. the device of a kind of association evaluation catalyzer according to claim 1 denitration and demercuration performance, it is characterized in that: described in mercury osmos tube is housed U-shaped quartz ampoule (23) immerse in oil bath (21), electric furnace (14) put into by described catalytic reactor (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310711000.8A CN103926370B (en) | 2013-12-20 | 2013-12-20 | The device and method of the denitration of a kind of association evaluation catalyzer and demercuration performance |
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|---|---|---|---|
| CN201310711000.8A CN103926370B (en) | 2013-12-20 | 2013-12-20 | The device and method of the denitration of a kind of association evaluation catalyzer and demercuration performance |
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| Publication Number | Publication Date |
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| CN103926370A CN103926370A (en) | 2014-07-16 |
| CN103926370B true CN103926370B (en) | 2015-11-18 |
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| CN105115924B (en) * | 2015-07-07 | 2018-07-24 | 重庆大学 | A kind of method and device of test carbon-supported catalyst demercuration performance |
| CN105911227B (en) * | 2016-06-20 | 2018-01-05 | 西安交通大学 | A kind of test device that can measure a variety of SCR catalysts simultaneously |
| CN106908565A (en) * | 2017-01-13 | 2017-06-30 | 武汉都市环保工程技术股份有限公司 | A kind of SCR catalyst performance test methods |
| CN107356701A (en) * | 2017-08-08 | 2017-11-17 | 国电环境保护研究院 | Example boat flange extends out the type SCR denitration device for detecting activity that declines |
| CN109061033A (en) * | 2018-07-10 | 2018-12-21 | 华电电力科学研究院有限公司 | SCR denitration demercuration integration catalyst integrated experiment device and test method |
| CN108956901A (en) * | 2018-09-27 | 2018-12-07 | 无锡华光新动力环保科技股份有限公司 | A kind of collaboration denitration demercuration catalyst performance evaluation device |
| CN110187048A (en) * | 2019-03-13 | 2019-08-30 | 华电电力科学研究院有限公司 | A kind of denitration catalyst performance testing device and test method |
| CN110052225A (en) * | 2019-05-17 | 2019-07-26 | 中南大学 | A kind of generation stabilization, is adjusted the gas phase HgCl of concentration2Device and method |
| CN112444595A (en) * | 2019-08-29 | 2021-03-05 | 国家能源投资集团有限责任公司 | Device and method for jointly evaluating activity of denitration and demercuration catalyst |
| CN110980661A (en) * | 2019-12-25 | 2020-04-10 | 广东电网有限责任公司电力科学研究院 | Nitrogen and oxygen generating device and thermal power plant catalyst reaction performance detection device |
| CN111579708B (en) * | 2020-05-19 | 2021-12-24 | 福州大学 | Device and method for evaluating activity of desulfurization catalyst |
| CN111999426A (en) * | 2020-08-17 | 2020-11-27 | 吉林省电力科学研究院有限公司 | Device and method for testing mercury removal performance of catalyst based on sleeve type reactor |
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