CN107202857A - A kind of laboratory's denitrating catalyst denitration efficiency computational methods - Google Patents
A kind of laboratory's denitrating catalyst denitration efficiency computational methods Download PDFInfo
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- CN107202857A CN107202857A CN201710291532.9A CN201710291532A CN107202857A CN 107202857 A CN107202857 A CN 107202857A CN 201710291532 A CN201710291532 A CN 201710291532A CN 107202857 A CN107202857 A CN 107202857A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/10—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using catalysis
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Abstract
Have the present invention relates to a kind of laboratory's denitrating catalyst denitration efficiency computational methods, including step：(1) denitration efficiency η is calculated, calculation formula is as follows：
Description
Technical field
The invention belongs to engineering measuring technology field, particularly a kind of laboratory's denitrating catalyst denitration efficiency calculating side
Method.
Background technology
As China gradually steps up to the attention degree of environmental protection and its related industry, identification and detection side to environmental protection equipment
Method is greatly improved, wherein the desulphurization and denitration testing techniques of equipment to boiler smoke has corresponding standards and norms.But
The problem of denitrating catalyst examination criteria at this stage has excessively simple, it is considered to detection environmental factor change it is less.Its
In in laboratory the denitration efficiency computational methods of SCR denitration system catalyst also deposit and very big study space.
Among the actually detected SCR denitration efficiency process of laboratory, what is used is all to be used as catalysis using concentration method
The test basis of agent efficiency, and concentration method can be influenceed by test gas flow among actual use, it is impossible to correct meter
The actual efficiency of catalyst treatment nitrogen oxides is calculated, therefore catalysis can more accurately be judged using new efficiency calculation method
The real denitration efficiency of agent.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, and to propose a kind of laboratory's denitrating catalyst denitration efficiency meter
Calculation method.
The present invention solves its technical problem and takes following technical scheme to realize：
A kind of laboratory's denitrating catalyst denitration efficiency computational methods, including step are as follows：
(1) denitration efficiency η is calculated, calculation formula is as follows：
η --- laboratory's SCR denitration calculates denitration efficiency, %；
pAir--- measured test room atmospheric pressure, kPa；
V, v ' --- catalyst import and export test gas flow velocity, m/s；
M, m ' --- catalyst import and export test measuring point sectional area, m2；
C, C ' --- catalyst import and export test measuring point gas nitrous oxides concentration, mg/Nm3；
T, t ' --- catalyst import and export test measuring point gas temperature, DEG C；
pIt is quiet、p′It is quiet--- catalyst import and export tests measuring point gas-static, kPa；
(2) according to the denitrating catalyst denitration efficiency η calculated, denitrating catalyst in actual SCR denitration system is instructed
Consumption.
Moreover, catalyst import and export tests measuring point gas nitrous oxides concentration in terms of standard state, butt in the step (1).
Advantages and positive effects of the present invention are：
1st, the actual efficiency of catalyst treatment nitrogen oxides can not be computed correctly out instant invention overcomes current laboratory
Drawback, calculation basis, the denitration efficiency of the SCR denitration laboratory obtained by calculating are used as by using nitrogen oxides weight
More accurate and science, its denitration efficiency calculated also more conforms to the practical operation situation of catalyst.
2nd, the present invention is among actually measurement, according to actually detected method of the laboratory to SCR denitration, increase pair
Catalyst import and export flow velocity, sectional area, temperature, static pressure are detected, and record atmospheric pressure, by catalyst import and export gas
The nitrous oxides concentration of middle detection is scaled gross weight and calculated, by calculating the nitrogen oxides total amount of catalyst treatment, meter
Accurate denitrating catalyst efficiency is calculated, method and step is clearly, simple to operate, practical.
Embodiment
The embodiment of the present invention is further described below：It is emphasized that embodiment of the present invention is explanation
Property, rather than it is limited, therefore the present invention is not limited to the embodiment described in embodiment, it is every by this area
The other embodiment that technical staff's technique according to the invention scheme is drawn, also belongs to the scope of protection of the invention.
A kind of laboratory's denitrating catalyst denitration efficiency computational methods, including step are as follows：
(1) denitration efficiency η is calculated, calculation formula is as follows：
η --- laboratory's SCR denitration calculates denitration efficiency, %；
pAir--- measured test room atmospheric pressure, kPa；
V, v ' --- catalyst import and export test gas flow velocity, m/s；
M, m ' --- catalyst import and export test measuring point sectional area, m2；
C, C ' --- catalyst import and export test measuring point gas nitrous oxides concentration, mg/Nm3(standard state, butt)；
T, t ' --- catalyst import and export test measuring point gas temperature, DEG C；
pIt is quiet、p′It is quiet--- catalyst import and export tests measuring point gas-static, kPa；
(2) according to the denitrating catalyst denitration efficiency η calculated, denitrating catalyst in actual SCR denitration system is instructed
Consumption.
Claims (2)
1. a kind of laboratory's denitrating catalyst denitration efficiency computational methods, it is characterised in that as follows including step：
(1) denitration efficiency η is calculated, calculation formula is as follows：
η --- laboratory's SCR denitration calculates denitration efficiency, %；
pAir--- measured test room atmospheric pressure, kPa；
V, v ' --- catalyst import and export test gas flow velocity, m/s；
M, m ' --- catalyst import and export test measuring point sectional area, m2；
C, C ' --- catalyst import and export test measuring point gas nitrous oxides concentration, mg/Nm3；
T, t ' --- catalyst import and export test measuring point gas temperature, DEG C；
pIt is quiet、p′It is quiet--- catalyst import and export tests measuring point gas-static, kPa；
(2) according to the denitrating catalyst denitration efficiency η calculated, the consumption of denitrating catalyst in actual SCR denitration system is instructed.
2. laboratory's denitrating catalyst denitration efficiency computational methods according to claim 1, it is characterised in that：The step
(1) catalyst import and export tests measuring point gas nitrous oxides concentration in terms of standard state, butt in.
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| CN201710291532.9A CN107202857A (en) | 2017-04-28 | 2017-04-28 | A kind of laboratory's denitrating catalyst denitration efficiency computational methods |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907588A (en) * | 2019-11-13 | 2020-03-24 | 国网天津市电力公司电力科学研究院 | Novel SCR denitration device efficiency calculation method |
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| CN105866338A (en) * | 2016-04-25 | 2016-08-17 | 国网天津市电力公司 | Efficiency calculation method for novel SCR (Selective Catalytic Reduction) denitration device |
| CN205861701U (en) * | 2016-06-29 | 2017-01-04 | 大唐南京环保科技有限责任公司 | Denitrating catalyst Activity determination evaluating apparatus |
| CN106526064A (en) * | 2016-11-16 | 2017-03-22 | 盐城工学院 | Method for dynamically detecting catalyst activity in SCR (selective catalytic reduction) denitrification process |
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| CN102565274A (en) * | 2012-01-17 | 2012-07-11 | 广东电网公司电力科学研究院 | Modifying method for catalyst activity in power plant SCR (selective catalytic reduction) denitration system |
| CN103034208A (en) * | 2012-12-17 | 2013-04-10 | 江苏方天电力技术有限公司 | Denitrating electricity price monitor method for coal-fired generating unit |
| CN103257645A (en) * | 2013-05-24 | 2013-08-21 | 北京工业大学 | Environmental load evaluation and monitoring method for selective catalytic reduction of NOx in cement plant |
| CN103499671A (en) * | 2013-09-29 | 2014-01-08 | 国家电网公司 | Method for testing activity of denitration catalyst of selective catalytic reduction (SCR) system of thermal power plant on site |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110907588A (en) * | 2019-11-13 | 2020-03-24 | 国网天津市电力公司电力科学研究院 | Novel SCR denitration device efficiency calculation method |
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Application publication date: 20170926 |