JP2987418B2 - Exhaust gas treatment equipment - Google Patents
Exhaust gas treatment equipmentInfo
- Publication number
- JP2987418B2 JP2987418B2 JP5316510A JP31651093A JP2987418B2 JP 2987418 B2 JP2987418 B2 JP 2987418B2 JP 5316510 A JP5316510 A JP 5316510A JP 31651093 A JP31651093 A JP 31651093A JP 2987418 B2 JP2987418 B2 JP 2987418B2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- gas
- nox
- sox
- discharge
- 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.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Treating Waste Gases (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、排ガス中の窒素酸化物
ＮＯｘや硫黄酸化物ＳＯｘを分解して無害化する排ガス
処理装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust gas treatment apparatus for decomposing nitrogen oxides NOx and sulfur oxides SOx in exhaust gas to make them harmless.
【０００２】[0002]
【従来の技術】発電プラント用ボイラ、ディーゼルエン
ジン、ガスタービン及び各種燃焼炉などから排出される
排ガス中にはＮＯｘやＳＯｘが含まれるため、これら成
分を分解処理する技術が従来から用いられている。従来
のこれらの技術についていくつか例示すると、電子ビー
ムやアンモニアを用いて排ガス中のＮＯｘを分解する技
術としては特開平１−２３６９２４号公報、特開平２−
２４１５１９号公報に開示の技術などがあり、グロー放
電やコロナ放電によりＮＯｘやＳＯｘを分解する技術と
しては特開平１−２３６９２４号公報、特開平２−２０
３９２０号公報、特開平２−２２７１１７号公報、特開
平５−９６１２９号公報に開示の技術などがある。2. Description of the Related Art NOx and SOx are contained in exhaust gas discharged from boilers for power plants, diesel engines, gas turbines, various types of combustion furnaces, etc., and a technique for decomposing these components has been used. . Some examples of these conventional technologies are described as technologies for decomposing NOx in exhaust gas using an electron beam or ammonia.
Japanese Patent Application Laid-Open No. 1-236924 and Japanese Patent Application Laid-Open No. 2-20 disclose techniques for decomposing NOx and SOx by glow discharge and corona discharge.
There are techniques disclosed in 3920, JP-A-2-227117 and JP-A-5-96129.
【０００３】これらの技術においては、ＮＯｘやＳＯｘ
の放電分解条件、すなわち、ガス分解器の放電電圧、放
電周波数、投入電力、処理ガス圧などの値は一定として
運転している。[0003] In these technologies, NOx and SOx are used.
, Ie, the discharge voltage, discharge frequency, input power, and processing gas pressure of the gas decomposer are kept constant.
【０００４】[0004]
【発明が解決しようとする課題】しかし、排ガス排出源
となるディーゼルエンジンの回転数の変動したり、ある
いは、ボイラやゴミ焼却炉においてゴミの組成が変動し
て排ガス中の成分比が変動するなど、排ガス排出源など
の条件の変動により排ガス中のＮＯｘやＳＯｘその他の
成分が変動する。よって、放電分解条件を常に一定とし
て排ガス処理を行なうと、放電分解条件が常に最適に保
たれるとはいえず、ＮＯｘやＳＯｘの分解効率が運転中
に低下してしまう問題がある。However, the rotational speed of a diesel engine, which is an exhaust gas discharge source, fluctuates, or the composition of refuse in a boiler or refuse incinerator fluctuates, and the component ratio in the exhaust gas fluctuates. In addition, NOx, SOx, and other components in the exhaust gas fluctuate due to fluctuations in conditions such as the exhaust gas discharge source. Therefore, if the exhaust gas treatment is performed while the discharge decomposition conditions are always kept constant, it cannot be said that the discharge decomposition conditions are always kept optimal, and there is a problem that the NOx and SOx decomposition efficiency decreases during operation.
【０００５】この解決のために、温度計、ＮＯｘ計、Ｓ
Ｏｘ計などで排ガスの温度、ＮＯｘ濃度、ＳＯｘ濃度な
どの排ガスの状態を検出し、この検出値に基づいて排ガ
スの放電分解条件を調節しても、これらの計測機器では
排ガスの電子密度、プラズマ密度などの排ガスの状態を
検出することはできず、これらのファクターがＮＯｘや
ＳＯｘの分解効率に関与している場合には、放電分解条
件を常に最適に保つことはできず、ＮＯｘやＳＯｘの分
解効率を十分に高く維持することはできない。To solve this problem, a thermometer, NOx meter, S
Even if the state of the exhaust gas, such as the temperature of the exhaust gas, NOx concentration, SOx concentration, etc., is detected by an Ox meter or the like, and the discharge decomposition conditions of the exhaust gas are adjusted based on the detected values, these measuring devices still have the following: It is not possible to detect the state of the exhaust gas such as the density, and when these factors are involved in the NOx and SOx decomposition efficiency, the discharge decomposition conditions cannot always be kept optimal, and the NOx and SOx The decomposition efficiency cannot be kept high enough.
【０００６】また、ガス分解器内のガスをガスサンプリ
ングして、ＮＯｘ計やＳＯｘ計でＮＯｘ濃度、ＳＯｘ濃
度を検出して放電分解条件を調節しようとしても、ガス
分解器内のガスの平均的な組成しか検出できず極め細か
な排ガス状態の検出はできず、また、ガスサンプリング
してから、ＮＯｘ計などでＮＯｘ濃度などを検出しても
タイムロスがあり、リアルタイムでの検出ができないた
め、排ガス状態が常に変動している場合には、正確な放
電分解条件の調節が困難となり、何れもＮＯｘやＳＯｘ
の分解効率を十分に高く維持することはできない。Further, even if the gas in the gas decomposer is gas-sampled, and the NOx concentration and the SOx concentration are detected by the NOx meter and the SOx meter to adjust the discharge decomposition conditions, the average of the gas in the gas decomposer is adjusted. It is not possible to detect the exhaust gas state very finely because it can only detect the composition, and even if the NOx concentration is detected with a NOx meter etc. after gas sampling, there is a time loss, and it is not possible to detect it in real time. If the state constantly fluctuates, it is difficult to accurately adjust the discharge decomposition conditions.
The decomposition efficiency cannot be kept high enough.
【０００７】本発明は、排ガス排出源などの条件の変動
により排ガスの電子密度、プラズマ密度などの排ガスの
状態が変動しても、常に最適のＮＯｘやＳＯｘの放電分
解条件を保つことができる排ガス処理装置を提供するこ
とを目的とする。[0007] The present invention provides an exhaust gas capable of always maintaining optimal NOx and SOx discharge decomposition conditions even if the state of the exhaust gas such as the electron density and plasma density of the exhaust gas fluctuates due to the fluctuation of conditions such as the exhaust gas discharge source. It is an object to provide a processing device.
【０００８】[0008]
【課題を解決するための手段】かかる課題を解決するた
めの本発明は、排ガス中のＮＯｘ及び、又はＳＯｘを分
解するガス分解器を備えた排ガス処理装置において、前
記ガス分解器内の排ガスの状態を検出する発光分光分析
器と、この発光分光分析器による検出値に基づいて前記
ガス分解器のＮＯｘ及び、又はＳＯｘ放電分解条件を調
節する制御器とを備えたことを特徴とする排ガス処理装
置である。According to the present invention, there is provided an exhaust gas treatment apparatus provided with a gas decomposer for decomposing NOx and / or SOx in exhaust gas. An exhaust gas treatment comprising: an emission spectrometer for detecting a state; and a controller for adjusting NOx and / or SOx discharge decomposition conditions of the gas decomposer based on a value detected by the emission spectrometer. Device.
【０００９】[0009]
【作用】本発明の前記の排ガス処理装置は発光分光分析
器を備えている。発光分光分析器を用いれば、ガス分解
器内の排ガスの状態を検出する場合はＮＯｘ濃度、ＳＯ
ｘ濃度などの排ガス状態のみならず、排ガスの電子密
度、プラズマ密度などの排ガス状態も検出することがで
きる。したがって、電子密度、プラズマ密度などがＮＯ
ｘやＳＯｘの分解反応に大きな影響を与えている場合に
おいても、これらの値を検出し、ＮＯｘ及び、又はＳＯ
ｘ放電分解条件を調節して常に最適なＮＯｘ及び、又は
ＳＯｘ放電分解条件を保つことができる。The exhaust gas treatment apparatus of the present invention has an emission spectrometer. If the emission spectrometer is used to detect the state of the exhaust gas in the gas decomposer, the NOx concentration, SOx
Not only the exhaust gas state such as x concentration but also the exhaust gas state such as electron density and plasma density of the exhaust gas can be detected. Therefore, the electron density, plasma density, etc. are NO
Even when it greatly affects the decomposition reaction of x and SOx, these values are detected and NOx and / or SOx are detected.
The optimal NOx and / or SOx discharge decomposition conditions can always be maintained by adjusting the x discharge decomposition conditions.
【００１０】また、発光分光分析器を用いれば、部分的
にガス分解器内の排ガスの状態が異なっていても、この
部分的な相違を検出することができる。よって、極めの
細かい排ガスの状態の検出ができ、この点でも最適なＮ
Ｏｘ及び、又はＳＯｘ放電分解条件を保つことができる
うえに、ガス分解器内でＮＯｘやＳＯｘの分解効率の高
い部分と低い部分のガス状態、そのときの放電分解条件
を記録すれば、従来より分解効率の高いガス状態を突き
止めて、ＮＯｘ、ＳＯｘガス高分解効率化開発に寄与す
ることも可能となる。さらに、ガスサンプリングなどは
必要なく、排ガスの成分組成などをリアルタイムで検出
することができるから、排ガスの状態が常に変動してい
る場合においても正確な放電分解条件の調節ができる。Further, if the emission spectrometer is used, even if the state of the exhaust gas in the gas decomposer is partially different, this partial difference can be detected. Therefore, it is possible to detect the state of the exhaust gas with extremely fine,
In addition to maintaining the Ox and / or SOx discharge decomposition conditions, and recording the gas state of the high and low NOx and SOx decomposition efficiency parts and the discharge decomposition conditions at that time in the gas decomposer, It is also possible to determine the gas state with high decomposition efficiency and contribute to the development of high decomposition efficiency of NOx and SOx gases. Furthermore, since gas sampling or the like is not required and the component composition of the exhaust gas can be detected in real time, accurate discharge decomposition conditions can be adjusted even when the state of the exhaust gas is constantly changing.
【００１１】より具体的に、何が最適な放電分解条件か
については、排ガス処理装置の使用対象（発電プラント
用ボイラに用いるのか、ディーゼルエンジンに用いるの
かなど）、排ガス処理装置の使用目的（ＮＯｘの除去の
みを対象とするのか、ＮＯｘとＳＯｘの両方を対象とす
るのか、目標とする除去率は何％かなど）、その他の様
々な条件により異なる。More specifically, what is the optimal discharge decomposition condition is the object of use of the exhaust gas treatment device (whether it is used for a power plant boiler or a diesel engine, etc.), the purpose of use of the exhaust gas treatment device (NOx The removal rate only, or both NOx and SOx, and what is the target removal rate?), And various other conditions.
【００１２】[0012]
【実施例】以下本発明の実施例を図面を参照しつつ説明
する。図１は本発明の一実施例である排ガス処理装置の
斜視図である。１はグロー放電やコロナ放電によりＮＯ
ｘを分解するガス分解器であり、このガス分解器１には
排ガスが導入されて、放電電源２により電圧が印加さ
れ、排ガス中のＮＯｘが分解される。ガス分解器１には
計測用窓３が設けられ、この窓を介して発光光を発光集
光部４、分光器５で検出する。発光集光部４、分光器５
による検出結果に基づいて、データプロセッサ６、コン
ピュータ７により、排ガス成分比、Ｎ+、Ｏ+を含むプラ
ズマ粒子密度、電子密度、プラズマ温度などの排ガス状
態が判定されて、この状態に変化があれば、ガス分解器
１におけるＮＯｘの適切な放電分解条件、すなわち、ガ
ス分解器の放電電圧、放電周波数、投入電力などの値を
演算し、放電電源２に制御信号を発して放電分解条件を
適切な値に保つ。また、必要に応じて、この制御信号に
よりガス分解器１に導入するガス圧力の調節や、マイク
ロ波照射により排ガス温度の調節も行なう。なお、９は
発光集光部４と分光器５とを接続する光ファイバ、８は
現在の排ガス状態や放電分解条件などを打ち出すプリン
タである。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of an exhaust gas treatment apparatus according to one embodiment of the present invention. 1 is NO due to glow discharge or corona discharge
This is a gas decomposer that decomposes x. Exhaust gas is introduced into the gas decomposer 1, a voltage is applied by a discharge power source 2, and NOx in the exhaust gas is decomposed. The gas decomposer 1 is provided with a measurement window 3 through which light emitted from the gas decomposer 4 is detected by the light emission condensing unit 4 and the spectroscope 5. Light emission condensing unit 4, spectroscope 5
The data processor 6 and the computer 7 determine the exhaust gas state such as the exhaust gas component ratio, the density of plasma particles including N + and O +, the electron density, the plasma temperature, etc. For example, an appropriate discharge decomposition condition of NOx in the gas decomposer 1, that is, a value such as a discharge voltage, a discharge frequency, and an input power of the gas decomposer is calculated, and a control signal is issued to the discharge power source 2 to appropriately set the discharge decomposition condition. Value. If necessary, the control signal controls the pressure of the gas introduced into the gas decomposer 1 and the temperature of the exhaust gas by microwave irradiation. Reference numeral 9 denotes an optical fiber for connecting the light-emitting and condensing unit 4 to the spectroscope 5, and reference numeral 8 denotes a printer that prints out the current exhaust gas state, discharge decomposition conditions, and the like.
【００１３】プラズマ温度は、検出したスペクトルデー
タに基づき、下記のボルツマン式を適用したＬＴＥモデ
ルによる演算を行なうことで求めることができる。The plasma temperature can be obtained by performing an operation using an LTE model to which the following Boltzmann equation is applied based on the detected spectrum data.
【００１４】[0014]
【数１】 (Equation 1)
【００１５】（なお、この式において、Ａ:自然放出係
数、ｇ:縮退度、Ｅ:ポテンシャルエネルギー、ｋ:ボル
ツマン定数、ν:ガス分解器１からのガスの排出側の発
光光の周波数、Ｉ:ガス分解器１へのガスの導入側の光
強度、Ｔ：ガス分解器１からのガスの排出側のプラズマ
温度であり、添字のijは準位ｉからｊへの遷移を意味
し、添字のklは準位ｋからｌへの遷移を意味する。） 粒子密度は、プラズマ温度が数千度以上の高温ならば、
次のｓａｈａの式に基づく演算により求められる。高温
のプラズマではｎe≒ｎ+として近似でき、ｎ+、ｎeが算
出される。(In this equation, A: spontaneous emission coefficient, g: degeneracy, E: potential energy, k: Boltzmann constant, ν: frequency of light emitted from the gas decomposer 1 on the discharge side of gas, I: : Light intensity on the gas introduction side to the gas decomposer 1; T: plasma temperature on the gas discharge side from the gas decomposer 1; suffix ij means transition from level i to j; The kl of means the transition from the level k to l.) If the plasma temperature is as high as several thousand degrees,
It is obtained by an operation based on the following Saha equation. In a high-temperature plasma, it can be approximated as ne ≒ n +, and n + and ne are calculated.
【００１６】[0016]
【数２】 (Equation 2)
【００１７】（なお、この式において、Ｖi：ガス分解
器１へのガスの導入側の電離電圧、ｅ：電気素量、ｎ
+：ガス分解器１からのガスの排出側のイオン密度、ｎ
e：ガス分解器１からのガスの排出側の電子密度、ｎg：
ガス分解器１からのガスの排出側の中性ガス粒子密度で
ある。） 比較的低温のプラズマにおいては、このｓａｈａの式は
つかえないため、シュタルクシフトを用いてｎeを算出
し、ｎ+を求める。(In this equation, Vi: ionization voltage on the gas introduction side to the gas decomposer 1, e: elementary electricity, n
+: Ion density on the discharge side of gas from the gas decomposer 1, n
e: electron density at the gas discharge side of gas decomposer 1, ng:
This is the neutral gas particle density on the gas discharge side of the gas decomposer 1. In a plasma at a relatively low temperature, the equation of saha cannot be used, so ne is calculated using the Stark shift to obtain n +.
【００１８】本実施例においては、放電分解条件を適切
な値に保つが、具体的に、何が最適な放電分解条件かに
ついては、排ガス処理装置の使用対象（発電プラント用
ボイラに用いるのか、ディーゼルエンジンに用いるのか
など）、排ガス処理装置の使用目的（本実施例のように
ＮＯｘの除去のみを対象とするのか、ＮＯｘとＳＯｘの
両方を対象とするのか、目標とする除去率は何％かな
ど）、その他の様々な条件により異なるものである。In this embodiment, the discharge decomposition condition is maintained at an appropriate value. Specifically, what is the optimum discharge decomposition condition depends on the object of use of the exhaust gas treatment apparatus (whether it is used in a boiler for a power plant, What is the target removal rate, whether it is used for a diesel engine, the purpose of use of the exhaust gas treatment device (whether it is only for the removal of NOx as in the present embodiment or both NOx and SOx). , Etc.) and other various conditions.
【００１９】ここでは、一例として、ＮＯ分子密度、Ｎ
Ｏ+密度、ＮＯ2+密度による放電分解条件調節について
説明する。ＮＯ中性粒子密度に比べ、その領域の全プラ
ズマ密度（窒素プラズマ、酸素プラズマが大半である）
が所定の割合以上となると、放電分解ではＮＯ量は減少
しなくなる。そこで、ｎNOx+ ／ ｎNO（ｎNOx+：(ＮＯ+
＋ ＮＯ2+の密度)、ｎNO：ＮＯ分子の密度）の値を監
視し、この値が大きくなり過ぎた場合には放電電圧を下
げたり、あるいはガス分解器１内に導入されるガスのガ
ス圧を変化させ、ＮＯｘ分解効率を高く維持することが
できる。なお、放電分解による、ＮＯｘ分解効率には、
ガス分解器１内の水分量も関係するから、この水分量も
考慮して調節してもよい。Here, as an example, the NO molecular density, N
The adjustment of discharge decomposition conditions by O + density and NO 2 + density will be described. Total plasma density in that region compared to NO neutral particle density (mostly nitrogen plasma and oxygen plasma)
Is greater than or equal to a predetermined ratio, the amount of NO does not decrease in the discharge decomposition. Therefore, nNOx + / nNO (nNOx + :( NO +
+ NO 2 + density) and nNO: the density of NO molecules) are monitored, and if this value becomes too large, the discharge voltage is lowered or the gas introduced into the gas decomposer 1 is reduced. By changing the pressure, the NOx decomposition efficiency can be kept high. In addition, NOx decomposition efficiency by discharge decomposition
Since the amount of water in the gas decomposer 1 is related, the adjustment may be made in consideration of the amount of water.
【００２０】つづいて本実施例の作用について説明す
る。本実施例の排ガス処理装置は上述のとおりガス分解
器１内の排ガス中の粒子密度も検出することができる。
よって、ガス分解器内１の排ガスの状態を検出する場合
にＮＯｘ濃度、ＳＯｘ濃度などの排ガス状態のみなら
ず、排ガスの電子密度、プラズマ密度などの排ガス状態
も検出することができる。したがって、電子密度、プラ
ズマ密度などがＮＯｘやＳＯｘの分解反応に大きな影響
を与えている場合においても、これらの値を検出し、Ｎ
Ｏｘ及び、又はＳＯｘ放電分解条件を調節して常に最適
なＮＯｘ及び、又はＳＯｘ放電分解条件を保つことがで
きる。Next, the operation of the present embodiment will be described. The exhaust gas treatment apparatus of the present embodiment can also detect the particle density in the exhaust gas in the gas decomposer 1 as described above.
Therefore, when detecting the state of the exhaust gas in the gas decomposer 1, not only the exhaust gas state such as the NOx concentration and the SOx concentration but also the exhaust gas state such as the electron density and the plasma density of the exhaust gas can be detected. Therefore, even when the electron density, the plasma density, and the like have a large effect on the decomposition reaction of NOx and SOx, these values are detected and N
The optimal NOx and / or SOx discharge decomposition conditions can always be maintained by adjusting the Ox and / or SOx discharge decomposition conditions.
【００２１】また、部分的にガス分解器１内の排ガスの
状態が異なっていても、この部分的な相違を検出するこ
とができる。よって、極めの細かい排ガスの状態の検出
ができ、この点でも最適なＮＯｘ及び、又はＳＯｘ放電
分解条件を保つことができるうえに、ガス分解器１内で
ＮＯｘやＳＯｘの分解効率の高い部分と低い部分のガス
状態、そのときの放電分解条件を記録すれば、従来より
分解効率の高いガス状態を突き止めて、ＮＯｘ、ＳＯｘ
ガス高分解効率化技術の開発に寄与することも可能とな
る。さらに、ガスサンプリングなどは必要なく、排ガス
の成分組成などをリアルタイムで検出することができる
から、排ガスの状態が常に変動している場合においても
正確な放電分解条件の調節を自動的に行なうことができ
る。Further, even if the state of the exhaust gas in the gas decomposer 1 is partially different, this partial difference can be detected. Therefore, it is possible to detect the state of the exhaust gas with extremely fine details, and in this respect, it is also possible to maintain the optimal NOx and / or SOx discharge decomposition conditions, and to obtain a portion having high NOx and SOx decomposition efficiency in the gas decomposer 1. By recording the gas state of the lower part and the discharge decomposition conditions at that time, it is possible to identify the gas state having a higher decomposition efficiency than before, and to determine NOx, SOx
It will also be possible to contribute to the development of gas high decomposition efficiency technology. Furthermore, gas sampling is not required, and the composition of the exhaust gas can be detected in real time. Therefore, even when the state of the exhaust gas is constantly changing, accurate adjustment of the discharge decomposition conditions can be performed automatically. it can.
【００２２】[0022]
【発明の効果】以上説明した本発明の排ガス処理装置に
よれば、排ガス排出源などの条件の変動により排ガスの
電子密度、プラズマ密度などの排ガスの状態が変動して
も、常に最適なＮＯｘ及び、又はＳＯｘの放電分解条件
を保つことができる。According to the exhaust gas treatment apparatus of the present invention described above, even if the state of the exhaust gas such as the electron density and the plasma density of the exhaust gas fluctuates due to the fluctuation of the conditions such as the exhaust gas discharge source, the optimum NOx and NOx are always maintained. , Or SOx discharge decomposition conditions can be maintained.
【図１】本発明の一実施例である排ガス処理装置の斜視
図である。FIG. 1 is a perspective view of an exhaust gas treatment apparatus according to one embodiment of the present invention.
１ ガス分解器 ２ 放電電源 ３ 計測用窓 ４ 発光集光部 ５ 分光器 ６ データプロセッサ ７ コンピュータ DESCRIPTION OF SYMBOLS 1 Gas decomposer 2 Discharge power supply 3 Measurement window 4 Light emission condensing part 5 Spectrometer 6 Data processor 7 Computer
Claims (1)
解するガス分解器を備えた排ガス処理装置において、前
記ガス分解器内の排ガスの状態を検出する発光分光分析
器と、この発光分光分析器による検出値に基づいて前記
ガス分解器のＮＯｘ及び、又はＳＯｘ放電分解条件を調
節する制御器とを備えたことを特徴とする排ガス処理装
置。1. An exhaust gas treatment apparatus provided with a gas decomposer for decomposing NOx and / or SOx in exhaust gas, an emission spectrometer for detecting a state of exhaust gas in the gas decomposer, and the emission spectrometer. An exhaust gas treatment apparatus, comprising: a controller that adjusts NOx and / or SOx discharge decomposition conditions of the gas decomposer based on a detection value obtained by the above method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5316510A JP2987418B2 (en) | 1993-12-16 | 1993-12-16 | Exhaust gas treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5316510A JP2987418B2 (en) | 1993-12-16 | 1993-12-16 | Exhaust gas treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07163838A JPH07163838A (en) | 1995-06-27 |
| JP2987418B2 true JP2987418B2 (en) | 1999-12-06 |
Family
ID=18077915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5316510A Expired - Fee Related JP2987418B2 (en) | 1993-12-16 | 1993-12-16 | Exhaust gas treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2987418B2 (en) |
-
1993
- 1993-12-16 JP JP5316510A patent/JP2987418B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07163838A (en) | 1995-06-27 |
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