CN108872299A - A kind of high water capacity sulfur dioxide in flue gas, the detection method of nitrogen oxides - Google Patents
A kind of high water capacity sulfur dioxide in flue gas, the detection method of nitrogen oxides Download PDFInfo
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- CN108872299A CN108872299A CN201810768559.7A CN201810768559A CN108872299A CN 108872299 A CN108872299 A CN 108872299A CN 201810768559 A CN201810768559 A CN 201810768559A CN 108872299 A CN108872299 A CN 108872299A
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 111
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title claims abstract description 58
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 239000003546 flue gas Substances 0.000 title claims abstract description 55
- 238000001514 detection method Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000005070 sampling Methods 0.000 claims abstract description 87
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 17
- 238000002485 combustion reaction Methods 0.000 claims abstract description 8
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 8
- 239000003517 fume Substances 0.000 claims description 8
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 claims description 7
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000012295 chemical reaction liquid Substances 0.000 claims description 7
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 claims description 7
- 239000003500 flue dust Substances 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 7
- 230000035484 reaction time Effects 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 abstract description 6
- 239000000809 air pollutant Substances 0.000 abstract description 2
- 231100001243 air pollutant Toxicity 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 14
- 238000005259 measurement Methods 0.000 description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 4
- 231100000331 toxic Toxicity 0.000 description 4
- 230000002588 toxic effect Effects 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- 238000002798 spectrophotometry method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005375 photometry Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/14—Investigating or analyzing materials by the use of thermal means by using distillation, extraction, sublimation, condensation, freezing, or crystallisation
- G01N25/142—Investigating or analyzing materials by the use of thermal means by using distillation, extraction, sublimation, condensation, freezing, or crystallisation by condensation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0011—Sample conditioning
- G01N33/0013—Sample conditioning by a chemical reaction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0022—General constructional details of gas analysers, e.g. portable test equipment using a number of analysing channels
- G01N33/0024—General constructional details of gas analysers, e.g. portable test equipment using a number of analysing channels a chemical reaction taking place or a gas being eliminated in one or more channels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of high water capacity sulfur dioxide in flue gas, the detection method of nitrogen oxides, are related to air pollutants detection technique field, and the present invention includes the following steps, (1) flue gas sampling：Tail gas after boiler combustion is collected into sampling by flue gas sampler three sampling pipes of series connection, and is kept in respectively into three sampling pipes；(2) humidity of flue gas measures；(3) absorbing liquid is prepared；(4) amount of nitrogen oxides measures；(5) content of sulfur dioxide measures；(6) result is calculated, and this have the advantage that raising analysis efficiency, saves detection time.
Description
Technical field
The invention belongs to air pollutants detection technique fields, and in particular to a kind of high water capacity sulfur dioxide in flue gas,
The detection method of nitrogen oxides.
Background technique
Sulfur dioxide and nitrogen oxides are common contaminants in atmosphere, can generate stimulation to the respiratory tract of human body, exist and lure
Send out the illnesss such as the infection of the upper respiratory tract and slow poisoning.With the continuous improvement of people's environmental consciousness, to the prison of all kinds of exhaust gas discharge
Control detection is also increasingly paid attention to.Currently, needing the content for each harmful components in exhaust gas to be examined in boiler waste gas discharge
It surveys, then is discharged after carrying out specific aim processing.For the prior art in wasted nickel catalyst, most common method is hydrochloride naphthodiamide light splitting
Photometry, although this detection method can detect the content of sulfur dioxide and nitrogen oxides, analysis time is long, and formality is numerous
It is trivial, and agents useful for same complicated component can cause secondary pollution to environment containing toxic component.
Summary of the invention
It is an object of the invention to：In order to solve SO 2 from fume and the analysis of nitrogen oxides detection method of the prior art
Time is long, and formality is cumbersome, and agents useful for same complicated component, containing toxic component, the problem of causing secondary pollution to environment, mentions
For a kind of high water capacity sulfur dioxide in flue gas, the detection method of nitrogen oxides.
The technical solution adopted by the present invention is as follows：
A kind of high water capacity sulfur dioxide in flue gas, the detection method of nitrogen oxides, include the following steps,
(1) flue gas sampling：Tail gas after boiler combustion is collected into sampling by flue gas sampler three sampling pipes of series connection, and
It is kept in respectively into three sampling pipes；
(2) humidity of flue gas measures：Filter cylinder is put into wherein first sampling pipe, the grit in removing flue dust, then with
Constant flow rate pumping, and fixed time intervals record condensator outlet gas temperature, temperature before flowmeter reading and flowmeter
And pressure, after sampling, by the moisture collection in sampling pipe and rubber tube into condenser, condensed water is measured with graduated cylinder, from
And measure humidity of flue gas；
(3) absorbing liquid is prepared：It is packed into the 2.2mmol/L's of equivalent into second sampling pipe and third sampling pipe
Na2CO3With 2.7mmol/L Na2HCO3；
(4) amount of nitrogen oxides measures：Percent volume is passed through than the peroxidating for 0.7%-1.0% to second sampling pipe
Hydrogen after reacting a period of time, detects NO in reaction liquid3 -Content and record；
(5) content of sulfur dioxide measures：It is 0.03%- that absorbing liquid is added into third sampling pipe and includes mass volume ratio
0.06% disodium EDTA after reacting a period of time, detects the NO in liquid2 -And NO3 -And it records；
(6) result is calculated：The NO that will be measured in step (4) and (5)2 -And NO3 -Content summarize, can be obtained after conversion
Out in unit volume SO 2 from fume and nitrogen oxides content, while by step (2) measurement humidity of flue gas together
Record summarizes.
Preferably, the acquisition speed of smoke collecting device is 0.5L/min in the step (1).
Preferably, the reaction time of second sampling pipe is 3min-5min in the step (4).
Preferably, the reaction time of third sampling pipe is 7min-11min in the step (5).
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1, in the present invention, for the prior art in wasted nickel catalyst, most common method is hydrochloride naphthodiamide spectrophotometry,
Although this detection method can detect the content of sulfur dioxide and nitrogen oxides, analysis time is long, and formality is cumbersome, and used
Agent formulations are complicated, containing toxic component, can cause secondary pollution to environment.For this problem, this method devises points three
The method of group detection, can carry out water capacity, the content detection of sulfur dioxide, nitrogen oxides of flue gas simultaneously, substantially increase point
Efficiency is analysed, detection time has been saved.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to limit
The fixed present invention, i.e., described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Therefore, the detailed description of the embodiment of the present invention is not intended to limit the range of claimed invention, but
It is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not making creativeness
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of labour.
It should be noted that the relational terms of term " first " and " second " or the like be used merely to an entity or
Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any
This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described
There is also other identical elements in the process, method, article or equipment of element.
A kind of high water capacity sulfur dioxide in flue gas, the detection method of nitrogen oxides, include the following steps,
(1) flue gas sampling：Tail gas after boiler combustion is collected into sampling by flue gas sampler three sampling pipes of series connection, and
It is kept in respectively into three sampling pipes；
(2) humidity of flue gas measures：Filter cylinder is put into wherein first sampling pipe, the grit in removing flue dust, then with
Constant flow rate pumping, and fixed time intervals record condensator outlet gas temperature, temperature before flowmeter reading and flowmeter
And pressure, after sampling, by the moisture collection in sampling pipe and rubber tube into condenser, condensed water is measured with graduated cylinder, from
And measure humidity of flue gas；
(3) absorbing liquid is prepared：It is packed into the 2.2mmol/L's of equivalent into second sampling pipe and third sampling pipe
Na2CO3With 2.7mmol/L Na2HCO3；
(4) amount of nitrogen oxides measures：Percent volume is passed through than the peroxidating for 0.7%-1.0% to second sampling pipe
Hydrogen after reacting a period of time, detects NO in reaction liquid3 -Content and record；
(5) content of sulfur dioxide measures：It is 0.03%- that absorbing liquid is added into third sampling pipe and includes mass volume ratio
0.06% disodium EDTA after reacting a period of time, detects the NO in liquid2 -And NO3 -And it records；
(6) result is calculated：The NO that will be measured in step (4) and (5)2 -And NO3 -Content summarize, can be obtained after conversion
Out in unit volume SO 2 from fume and nitrogen oxides content, while by step (2) measurement humidity of flue gas together
Record summarizes.
The acquisition speed of smoke collecting device is 0.5L/min in the step (1).
The reaction time of second sampling pipe is 3min-5min in the step (4).
The reaction time of third sampling pipe is 7min-11min in the step (5).
Feature and performance of the invention are described in further detail with reference to embodiments.
Embodiment 1
A kind of high water capacity sulfur dioxide in flue gas, the detection method of nitrogen oxides of present pre-ferred embodiments offer,
Include the following steps,
(1) flue gas sampling：Tail gas after boiler combustion is collected into sampling by flue gas sampler three sampling pipes of series connection, and
It is kept in respectively into three sampling pipes；
(2) humidity of flue gas measures：Filter cylinder is put into wherein first sampling pipe, the grit in removing flue dust, then with
Constant flow rate pumping, and fixed time intervals record condensator outlet gas temperature, temperature before flowmeter reading and flowmeter
And pressure, after sampling, by the moisture collection in sampling pipe and rubber tube into condenser, condensed water is measured with graduated cylinder, from
And measure humidity of flue gas；
(3) absorbing liquid is prepared：It is packed into the 2.2mmol/L's of equivalent into second sampling pipe and third sampling pipe
Na2CO3With 2.7mmol/L Na2HCO3；
(4) amount of nitrogen oxides measures：Percent volume is passed through than the peroxidating for 0.7%-1.0% to second sampling pipe
Hydrogen after reacting a period of time, detects NO in reaction liquid3 -Content and record；
(5) content of sulfur dioxide measures：It is 0.03%- that absorbing liquid is added into third sampling pipe and includes mass volume ratio
0.06% disodium EDTA after reacting a period of time, detects the NO in liquid2 -And NO3 -And it records；
(6) result is calculated：The NO that will be measured in step (4) and (5)2 -And NO3 -Content summarize, can be obtained after conversion
Out in unit volume SO 2 from fume and nitrogen oxides content, while by step (2) measurement humidity of flue gas together
Record summarizes.
In the present invention, for the prior art in wasted nickel catalyst, most common method is hydrochloride naphthodiamide spectrophotometry, this
Although kind of detection method can detect the content of sulfur dioxide and nitrogen oxides, analysis time is long, and formality is cumbersome, and examination used
Agent complicated component can cause secondary pollution to environment containing toxic component.For this problem, this method devises points three groups
The method of detection can carry out water capacity, the content detection of sulfur dioxide, nitrogen oxides of flue gas simultaneously, substantially increase analysis
Efficiency has saved detection time.
Embodiment 2
Present pre-ferred embodiments have made following optimization on the basis of example 1：What present pre-ferred embodiments provided
A kind of high water capacity sulfur dioxide in flue gas, the detection method of nitrogen oxides, include the following steps,
(1) flue gas sampling：Tail gas after boiler combustion is collected into sampling by flue gas sampler three sampling pipes of series connection, and
It is kept in respectively into three sampling pipes；
(2) humidity of flue gas measures：Filter cylinder is put into wherein first sampling pipe, the grit in removing flue dust, then with
Constant flow rate pumping, and fixed time intervals record condensator outlet gas temperature, temperature before flowmeter reading and flowmeter
And pressure, after sampling, by the moisture collection in sampling pipe and rubber tube into condenser, condensed water is measured with graduated cylinder, from
And measure humidity of flue gas；
(3) absorbing liquid is prepared：It is packed into the 2.2mmol/L's of equivalent into second sampling pipe and third sampling pipe
Na2CO3With 2.7mmol/L Na2HCO3；
(4) amount of nitrogen oxides measures：Percent volume is passed through than the hydrogen peroxide for 0.7%, instead to second sampling pipe
After answering a period of time, NO in reaction liquid is detected3 -Content and record；
(5) content of sulfur dioxide measures：It is 0.03% that absorbing liquid is added into third sampling pipe and includes mass volume ratio
Disodium EDTA, react a period of time after, detect liquid in NO2 -And NO3 -And it records；
(6) result is calculated：The NO that will be measured in step (4) and (5)2 -And NO3 -Content summarize, can be obtained after conversion
Out in unit volume SO 2 from fume and nitrogen oxides content, while by step (2) measurement humidity of flue gas together
Record summarizes.
Embodiment 3
Present pre-ferred embodiments have made following optimization on the basis of example 1：What present pre-ferred embodiments provided
A kind of high water capacity sulfur dioxide in flue gas, the detection method of nitrogen oxides, include the following steps,
(1) flue gas sampling：Tail gas after boiler combustion is collected into sampling by flue gas sampler three sampling pipes of series connection, and
It is kept in respectively into three sampling pipes；
(2) humidity of flue gas measures：Filter cylinder is put into wherein first sampling pipe, the grit in removing flue dust, then with
Constant flow rate pumping, and fixed time intervals record condensator outlet gas temperature, temperature before flowmeter reading and flowmeter
And pressure, after sampling, by the moisture collection in sampling pipe and rubber tube into condenser, condensed water is measured with graduated cylinder, from
And measure humidity of flue gas；
(3) absorbing liquid is prepared：It is packed into the 2.2mmol/L's of equivalent into second sampling pipe and third sampling pipe
Na2CO3With 2.7mmol/L Na2HCO3；
(4) amount of nitrogen oxides measures：Percent volume is passed through than the hydrogen peroxide for 1.0%, instead to second sampling pipe
After answering a period of time, NO in reaction liquid is detected3 -Content and record；
(5) content of sulfur dioxide measures：It is 0.06% that absorbing liquid is added into third sampling pipe and includes mass volume ratio
Disodium EDTA, react a period of time after, detect liquid in NO2 -And NO3 -And it records；
(6) result is calculated：The NO that will be measured in step (4) and (5)2 -And NO3 -Content summarize, can be obtained after conversion
Out in unit volume SO 2 from fume and nitrogen oxides content, while by step (2) measurement humidity of flue gas together
Record summarizes.
Embodiment 4
Present pre-ferred embodiments have made following optimization on the basis of example 1：What present pre-ferred embodiments provided
A kind of high water capacity sulfur dioxide in flue gas, the detection method of nitrogen oxides, include the following steps,
(1) flue gas sampling：Tail gas after boiler combustion is collected into sampling by flue gas sampler three sampling pipes of series connection, and
It is kept in respectively into three sampling pipes；
(2) humidity of flue gas measures：Filter cylinder is put into wherein first sampling pipe, the grit in removing flue dust, then with
Constant flow rate pumping, and fixed time intervals record condensator outlet gas temperature, temperature before flowmeter reading and flowmeter
And pressure, after sampling, by the moisture collection in sampling pipe and rubber tube into condenser, condensed water is measured with graduated cylinder, from
And measure humidity of flue gas；
(3) absorbing liquid is prepared：It is packed into the 2.2mmol/L's of equivalent into second sampling pipe and third sampling pipe
Na2CO3With 2.7mmol/L Na2HCO3；
(4) amount of nitrogen oxides measures：Percent volume is passed through than the hydrogen peroxide for 0.9%, instead to second sampling pipe
After answering a period of time, NO in reaction liquid is detected3 -Content and record；
(5) content of sulfur dioxide measures：It is 0.04% that absorbing liquid is added into third sampling pipe and includes mass volume ratio
Disodium EDTA, react a period of time after, detect liquid in NO2 -And NO3 -And it records；
(6) result is calculated：The NO that will be measured in step (4) and (5)2 -And NO3 -Content summarize, can be obtained after conversion
Out in unit volume SO 2 from fume and nitrogen oxides content, while by step (2) measurement humidity of flue gas together
Record summarizes.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (4)
1. a kind of high water capacity sulfur dioxide in flue gas, the detection method of nitrogen oxides, which is characterized in that include the following steps,
(1) flue gas sampling：Tail gas after boiler combustion is collected into sampling by flue gas sampler three sampling pipes of series connection, and respectively
It keeps in into three sampling pipes；
(2) humidity of flue gas measures：Filter cylinder is put into wherein first sampling pipe, removes the grit in flue dust, then with constant
Flow velocity pumping, and fixed time intervals record condensator outlet gas temperature, temperature and pressure before flowmeter reading and flowmeter
Power after sampling, by the moisture collection in sampling pipe and rubber tube into condenser, measures condensed water with graduated cylinder, to survey
Determine humidity of flue gas；
(3) absorbing liquid is prepared：The Na of the 2.2mmol/L of equivalent is packed into second sampling pipe and third sampling pipe2CO3With
2.7mmol/L Na2HCO3；
(4) amount of nitrogen oxides measures：Percent volume is passed through than the hydrogen peroxide for 0.7%-1.0% to second sampling pipe,
After reacting a period of time, NO in reaction liquid is detected3 -Content and record；
(5) content of sulfur dioxide measures：It is 0.03%- that absorbing liquid is added into third sampling pipe and includes mass volume ratio
0.06% disodium EDTA after reacting a period of time, detects the NO in liquid2 -And NO3 -And it records；
(6) result is calculated：The NO that will be measured in step (4) and (5)2 -And NO3 -Content summarize, unit that you can get it after conversion
The content of SO 2 from fume and nitrogen oxides in volume, while the humidity of flue gas that step (2) measure is recorded into remittance together
Always.
2. high water capacity sulfur dioxide in flue gas, the detection method of nitrogen oxides as described in claim 1, it is characterised in that：
The acquisition speed of smoke collecting device is 0.5L/min in the step (1).
3. high water capacity sulfur dioxide in flue gas, the detection method of nitrogen oxides as described in claim 1, it is characterised in that：
The reaction time of second sampling pipe is 3min-5min in the step (4).
4. high water capacity sulfur dioxide in flue gas, the detection method of nitrogen oxides as described in claim 1, it is characterised in that：
The reaction time of third sampling pipe is 7min-11min in the step (5).
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| CN201810768559.7A CN108872299A (en) | 2018-07-13 | 2018-07-13 | A kind of high water capacity sulfur dioxide in flue gas, the detection method of nitrogen oxides |
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| CN201810768559.7A CN108872299A (en) | 2018-07-13 | 2018-07-13 | A kind of high water capacity sulfur dioxide in flue gas, the detection method of nitrogen oxides |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781300A (en) * | 2020-05-27 | 2020-10-16 | 金川集团股份有限公司 | Method for detecting concentration of nitrogen oxides in flue gas in low-nickel matte nitric acid leaching process |
| CN112432826A (en) * | 2020-12-03 | 2021-03-02 | 华能秦煤瑞金发电有限责任公司 | Power plant flue gas sulfur dioxide monitoring devices |
| CN114002248A (en) * | 2021-11-09 | 2022-02-01 | 中国洛阳浮法玻璃集团有限责任公司 | Monitoring and control method for sulfur dioxide consumption of float glass production line |
-
2018
- 2018-07-13 CN CN201810768559.7A patent/CN108872299A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781300A (en) * | 2020-05-27 | 2020-10-16 | 金川集团股份有限公司 | Method for detecting concentration of nitrogen oxides in flue gas in low-nickel matte nitric acid leaching process |
| CN112432826A (en) * | 2020-12-03 | 2021-03-02 | 华能秦煤瑞金发电有限责任公司 | Power plant flue gas sulfur dioxide monitoring devices |
| CN114002248A (en) * | 2021-11-09 | 2022-02-01 | 中国洛阳浮法玻璃集团有限责任公司 | Monitoring and control method for sulfur dioxide consumption of float glass production line |
| CN114002248B (en) * | 2021-11-09 | 2024-02-13 | 中国洛阳浮法玻璃集团有限责任公司 | Monitoring and controlling method for sulfur dioxide consumption of float glass production line |
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