JPS63191059A - Continuous analysis of mercury in gas - Google Patents
Continuous analysis of mercury in gasInfo
- Publication number
- JPS63191059A JPS63191059A JP2178387A JP2178387A JPS63191059A JP S63191059 A JPS63191059 A JP S63191059A JP 2178387 A JP2178387 A JP 2178387A JP 2178387 A JP2178387 A JP 2178387A JP S63191059 A JPS63191059 A JP S63191059A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- mercury
- liquid
- continuously
- line
- 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.)
- Pending
Links
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 229910052753 mercury Inorganic materials 0.000 title claims abstract description 61
- 238000004458 analytical method Methods 0.000 title claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 230000001590 oxidative effect Effects 0.000 claims abstract description 7
- 239000000428 dust Substances 0.000 claims description 26
- 238000010521 absorption reaction Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 18
- 230000003647 oxidation Effects 0.000 claims description 11
- 238000007254 oxidation reaction Methods 0.000 claims description 11
- 150000002731 mercury compounds Chemical class 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 57
- 239000000243 solution Substances 0.000 description 8
- 230000035945 sensitivity Effects 0.000 description 6
- 238000000605 extraction Methods 0.000 description 5
- 238000005070 sampling Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- WTDHULULXKLSOZ-UHFFFAOYSA-N Hydroxylamine hydrochloride Chemical compound Cl.ON WTDHULULXKLSOZ-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002594 fluoroscopy Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- ZNBNBTIDJSKEAM-UHFFFAOYSA-N 4-[7-hydroxy-2-[5-[5-[6-hydroxy-6-(hydroxymethyl)-3,5-dimethyloxan-2-yl]-3-methyloxolan-2-yl]-5-methyloxolan-2-yl]-2,8-dimethyl-1,10-dioxaspiro[4.5]decan-9-yl]-2-methyl-3-propanoyloxypentanoic acid Chemical compound C1C(O)C(C)C(C(C)C(OC(=O)CC)C(C)C(O)=O)OC11OC(C)(C2OC(C)(CC2)C2C(CC(O2)C2C(CC(C)C(O)(CO)O2)C)C)CC1 ZNBNBTIDJSKEAM-UHFFFAOYSA-N 0.000 description 1
- 241000430525 Aurinia saxatilis Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910000378 hydroxylammonium sulfate Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910000474 mercury oxide Inorganic materials 0.000 description 1
- UKWHYYKOEPRTIC-UHFFFAOYSA-N mercury(ii) oxide Chemical compound [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- -1 these Chemical compound 0.000 description 1
- 229910000375 tin(II) sulfate Inorganic materials 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、大気環境中、排ガス中、含粉塵排ガス中等
、ガス中に含まれている水銀の連続分析方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for continuous analysis of mercury contained in gases such as the atmospheric environment, exhaust gas, and dust-containing exhaust gas.
（従来の技術）
例えば、排ガス中の水銀分析についてはＪＩＳＫＯ２２
２排ガス中の水銀排ガス一定められており、繰り返えし
サンプリング・分析するバッチ方式が示されている。(Prior art) For example, for the analysis of mercury in exhaust gas, JISKO22
2 The amount of mercury in the flue gas is fixed, and a batch method of repeated sampling and analysis is shown.
即ち、排ガス発生源からフィルターを介して排ガスを取
り出して、これを酸化吸収液が入った吸収ビンに捕集し
、これを分析個所に持ち帰り、所要の酸化促進処理を施
してのち、還元容器に移し、これに還元剤溶液を性別し
、その中へ空気を注入して水銀蒸気を空気中に拡散する
。この空気を分析計に導びいて排ガス中の水銀濃度を分
析する方法である。That is, exhaust gas is taken out from the exhaust gas generation source through a filter, collected in an absorption bottle containing an oxidizing absorption liquid, taken back to the analysis site, subjected to the necessary oxidation promotion treatment, and then transferred to a reduction container. A reducing agent solution is added to the solution, and air is injected into the solution to diffuse mercury vapor into the air. In this method, this air is introduced into an analyzer to analyze the mercury concentration in the exhaust gas.
（発明が解決しようとする問題点）
所が上記の方法によれば次記の如き問題点かある。（１
）先ず第１に、分析の迅速性に欠けることである。(Problems to be Solved by the Invention) However, the above method has the following problems. (1
) First of all, the speed of analysis is lacking.
上記の如く試料採取と分析工程は分かれており、分析工
程は試料を持ち帰ってから分析個所にて処理するのが一
般的である。従って分析時間に最低でも約２時間を必要
とするものである。As mentioned above, the sample collection and analysis processes are separated, and in the analysis process, the sample is generally processed at the analysis site after being taken home. Therefore, the analysis time requires at least about 2 hours.
（２）第２に、酸化吸収液の汚染による分析値のバラツ
キが大きいことである。分析操作は試薬・ガラス容器を
手作業で取り扱うため、水銀汚染を受は易い。そもそも
大気中には水銀蒸気がＮＤ〜１００（μ１背）位存在し
ている。特に分析室の雰囲気は高目であることが多い。(2) Second, there is a large variation in analytical values due to contamination of the oxidizing and absorbing liquid. Analytical operations involve manual handling of reagents and glass containers, making them susceptible to mercury contamination. To begin with, there is about ND~100 (μ1) of mercury vapor in the atmosphere. In particular, the atmosphere in the analysis room is often expensive.
又吸収液等は放っておくと、著るしく水銀蒸気を吸収し
てしまうので、試料採取前後の取扱いと分析操作時には
細心の注意が必要である。実際にはこのように慎重に行
っても、複数の空試験値のバラツキは大きいものである
。Furthermore, if the absorption liquid is left alone, it will absorb a significant amount of mercury vapor, so extreme care must be taken when handling and analyzing samples before and after sampling. In reality, even with such care, there are large variations in the blank test values.
（３）更に第３に、長時間の連続透視ができないことで
ある。排ガス発生炉によっては、排ガス中の水銀濃度は
大きく変動する。ところがＪＩＳ法では、通常２０−４
０分吸引し、試料を採取するため、平埼値しか得られず
、その間の変動は判からないため、例えばピーク値をも
って連続透視に供することができない。その他バッチ式
特有の労力、経済性について種々の問題を有するもので
ある。(3) Thirdly, continuous fluoroscopy for a long period of time is not possible. The mercury concentration in the exhaust gas varies greatly depending on the exhaust gas generating furnace. However, according to the JIS method, it is usually 20-4.
Since the sample is collected after suctioning for 0 minutes, only the average value can be obtained, and fluctuations during that time cannot be determined. Therefore, for example, the peak value cannot be used for continuous fluoroscopy. In addition, there are various problems regarding labor and economy peculiar to the batch method.
一方、一般に排ガス中のガス状水銀以外の粉塵等に含ま
れている水銀は、約５％程度と言われているが、場合に
よっては数１０％以上になる場合もあり、公害という観
点から見れば、ガス状水銀は広く拡散してもそれ以外の
水銀は落下速度が早くて、発生源近くの周辺土壌に堆積
するため、例えば焼却場等の周辺では今後問題視される
ことが予想されるところである。On the other hand, the amount of mercury contained in dust other than gaseous mercury in flue gas is said to be around 5%, but in some cases it can reach several tens of percent or more, making it difficult to see from a pollution perspective. For example, even though gaseous mercury is widely dispersed, other mercury falls at a faster rate and accumulates in the surrounding soil near the source, so it is expected that it will become a problem in the future, for example in the vicinity of incinerators. By the way.
この様なことから水銀分析においては、粒子状及びミス
ト状水銀の取扱いは重要であり、これらを含めた総水銀
として分析が行われることが望ましいが、上記Ｊ Ｉ’
Ｓ ＫＯ２２２の試料採取装置では、ろ過材を介して
排ガスの取出し全行つｔいるために、総水銀の分析を行
なうことができなかつた。For this reason, in mercury analysis, handling of particulate and mist mercury is important, and it is desirable to analyze the total mercury including these, but the above J I'
With the sample collection device of SKO222, it was not possible to analyze total mercury because all exhaust gases had to be taken out through a filter medium.
この発明は、上記の難点を解決し、更に上記の要望に応
え得るガス中の水銀連続分析方法を提供するものである
。The present invention provides a method for continuous analysis of mercury in gas that can solve the above-mentioned difficulties and also meet the above-mentioned demands.
（問題点を解決するための手段）
上記の目的は、次に掲げる本発明により達成されるもの
である。即ちこの発明はガス発生部からガスを連続的に
取出すと共に、このガスに酸化吸収液を連続江別して、
水銀蒸気及び水銀化合物を吸収した酸化吸収液を連続的
に取出して、この両者を気液分離器に導入し、この気液
分離器で気体の分離量を調整して、残余所定量のガスと
酸化吸収液を連続的に取出し、次いでこれに還元溶液を
連続江別して、酸化吸収液中の水銀を水銀蒸気としてガ
ス中に拡散させ、更に気液分離してガスを連続的ζ二水
銀分析すること及びガス発生部から含粉塵ガスを連続的
に取出すと共に、含粉塵ガス取出し部近傍において、粉
塵搬送液を連続註加後酸化吸収液を連続注那するガス中
の水一連続分析方法にある。(Means for Solving the Problems) The above objects are achieved by the present invention listed below. That is, this invention continuously extracts gas from a gas generating section, and continuously separates an oxidizing absorption liquid into this gas.
The oxidation absorption liquid that has absorbed mercury vapor and mercury compounds is continuously taken out and both are introduced into a gas-liquid separator. The oxidized absorption liquid is continuously taken out, and then the reduced solution is continuously separated into it, the mercury in the oxidized absorption liquid is diffused into the gas as mercury vapor, and the gas is further separated into a liquid and the gas is continuously analyzed for ζdimercury. In addition, there is a method for continuous analysis of water in gas, in which dust-containing gas is continuously taken out from the gas generation part, and an oxidation absorption liquid is continuously injected after the dust-carrying liquid is continuously added near the dust-containing gas extraction part. .
以下、この発明の内容を詳細に説明する。The contents of this invention will be explained in detail below.
この発明の第１の特徴は、酸化吸収過程の後に気液分離
器を設け、この分離器によって排ガス中の水銀濃度に応
じて、ガスの分離量と酸化吸収液と共Ｃ二数り出すガス
量の比率を調節することにより、分析ガス中の水銀濃度
を任意にコントロール（高める方向）でき、低水銀濃度
域の排ガスの水銀の連続分析をも可能とした点である。The first feature of this invention is that a gas-liquid separator is provided after the oxidation and absorption process, and this separator determines the amount of gas separated and the amount of C2 gas output together with the oxidation and absorption liquid, depending on the mercury concentration in the exhaust gas. By adjusting the ratio of amounts, the mercury concentration in the analysis gas can be arbitrarily controlled (increased), and continuous analysis of mercury in exhaust gas in a low mercury concentration range is also possible.
この効果は、単に連続化したソけでは得られないもので
ある。This effect cannot be obtained simply by continuous sawing.
次ζ；第２の特徴は、上記第１の特徴（二より水銀の連
続分析が可能となったことにより、時々刻々発生する排
ガスの水銀のピーク値の検出が確実（二できるようにな
り、排ガス発生源から排出される水銀濃度の透視（モニ
ター）ができ、燃焼管理及び排ガス管理に寄与できる点
である。Next ζ: The second feature is the above-mentioned first feature (2) By making continuous analysis of mercury possible, it is now possible to reliably detect the peak value of mercury in exhaust gas that is generated from time to time. It is possible to see through (monitor) the mercury concentration emitted from the exhaust gas generation source, contributing to combustion management and exhaust gas management.
第３の特徴は、排ガス中の水銀の分析が連続して行なえ
ることで、閉鎖型システムが確立され。The third feature is that analysis of mercury in exhaust gas can be performed continuously, establishing a closed system.
従来のバッチ式での多数の汚染要因が排除される結果、
分析値の異常といったトラブルが大巾に減少する点であ
る。As a result of eliminating many sources of contamination in traditional batch processes,
Problems such as abnormal analysis values are greatly reduced.
更に第４の特徴は、ガス中に含まれている粉塵の液体に
よる搬送技術を採用することにより、ラインを閉塞する
ことなく粉塵の取り出しができるようになり、排ガス中
に存在する粉塵等に含まれている水銀をも含めた総水銀
の連続分析が可能となり、水銀汚染の実態の総合評価を
可能とした点である。Furthermore, the fourth feature is that by adopting a liquid transport technology for dust contained in gas, it is possible to remove dust without clogging the line, and the dust contained in exhaust gas can be removed. This makes it possible to conduct continuous analysis of total mercury, including mercury contained in water, making it possible to comprehensively evaluate the actual state of mercury pollution.
又、このことにより、この発明によれば、大気環境中の
総水銀の連続分析も可能となるものである。Furthermore, this makes it possible to continuously analyze total mercury in the atmospheric environment according to the present invention.
以下、この発明の方法を第１図及び第２図に基づいて説
明する。Hereinafter, the method of the present invention will be explained based on FIGS. 1 and 2.
第１図はこの発明の第１の発明の工程であり、第２図は
第２の発明の工程図である。FIG. 1 shows a process of the first invention, and FIG. 2 shows a process diagram of the second invention.
第１図において１は例えば排ガスの煙道で、この排ガス
煙道１から常法にしたがって粉塵、ダスト、ヒユーム及
びミスト等（代表して粉塵と呼ぶ）が吸引されない様に
、フィルター２を介して排ガス試料をライン３へ取り出
す。In Fig. 1, 1 is an exhaust gas flue, for example, and a filter 2 is passed through the exhaust gas flue 1 to prevent dust, dust, fume, mist, etc. (representatively referred to as dust) from being sucked from the flue gas flue 1 according to a conventional method. Take out the exhaust gas sample to line 3.
取り出された排ガス試料に対して、容器４内の酸化吸収
液（例えば、Ｏ，ｌ （ｗ／ｖ％） 〜飽和Ｋ Ｍｎ
Ｏ４を含む０．３〜５ Ｎ −Ｈ，Ｓｏ４溶液）を、ポ
ンプ５により供給して注加５′シ、ライン３に形成され
た環状反応部６で、気液接触を十分に行なって水銀蒸気
を吸収液に完全に酸化吸収し、気液分離器７に入る。反
応部では反応を促進するために加熱することも可能であ
る。The oxidation absorption liquid in the container 4 (for example, O,l (w/v%) ~ saturated K Mn
0.3 to 5 N -H, So4 solution containing O4 is supplied by pump 5 and injected 5', and sufficient gas-liquid contact is made in the annular reaction section 6 formed in line 3 to remove mercury. The vapor is completely oxidized and absorbed into the absorption liquid and then enters the gas-liquid separator 7. It is also possible to heat the reaction section to promote the reaction.
この分離器７で水銀が分離された排ガスの所定量は、ラ
イン３ａの除湿器８、流量計９及び吸引ポンプ１０を通
して排出される。A predetermined amount of the exhaust gas from which mercury has been separated in the separator 7 is discharged through the dehumidifier 8, flow meter 9, and suction pump 10 in the line 3a.
一方気液分離器７から吸収液及び残部所定量の排ガスを
ライン３ｂへ取り出し、ラインの途中で容器１１内の還
元液（例えば０〜１０ （ｗ／ ｖ％）ＮａＣｊ ＋
Ｏ〜１０ （ｗ／ｖ％）硫酸ヒドロキシルアミン又はＯ
〜１０（ｗ／ｖ％）塩酸ヒドロキシルアミン＋３〜５
（ｗ／ｖ％ ） ５ｎＣＪ、、 −２Ｈ２０又は２〜１
０（ｙ ／ ｖ ％ ） ＳｎＳＯ４を含む１〜５Ｎ−
Ｈ２Ｓｏ、溶液）を、ポンプ１２により供給して性別１
２′シ、環状反応部１３にて水銀酸化物を還元して水銀
蒸気を発生させる。その後気液分離器１４にて、液を下
部より分離１５し、分析ガスは除湿器１６を通したのち
分析計１７で分析し、吸引ポンプ１８により吸引排出す
る。上記の分析は周知の例えば、水銀用原子吸光分析装
置により水銀蒸気の定量を行なう。On the other hand, the absorption liquid and the remaining predetermined amount of exhaust gas are taken out from the gas-liquid separator 7 to the line 3b, and in the middle of the line, the reducing liquid (for example, 0 to 10 (w/v%) NaCj +
O~10 (w/v%) hydroxylamine sulfate or O
~10 (w/v%) Hydroxylamine hydrochloride +3-5
(w/v%) 5nCJ, -2H20 or 2-1
1~5N- containing 0(y/v%) SnSO4
H2So, solution) is supplied by pump 12 to
2', mercury oxide is reduced in the annular reaction section 13 to generate mercury vapor. Thereafter, a gas-liquid separator 14 separates the liquid from the lower part 15, and the analysis gas passes through a dehumidifier 16, is analyzed in an analyzer 17, and is suctioned and discharged by a suction pump 18. The above analysis is performed by quantifying mercury vapor using a well-known atomic absorption spectrometer for mercury, for example.
この発明の１つの大きな特徴は、吸引ポンプ１０と１８
の制御により、ライン３ａへ流れる排ガスとライン３ｂ
（分析計１７）へ流す分析ガスの容積比をコントロー
ルすることである。すなわち、この比率を任意に変える
ことにより、分析ガスの水銀濃度を任意に変えることが
でき、例えば９対１の比率で取り出せば１０倍の感度、
９９対１の比率で取り出せば１００倍の感度に、更に９
９９９対ｌの比率で取り出せば１０，０００倍の感度が
得られるものであり、′排ガスのサンプリング濃度の変
動に合せて、任意の感度を随時得ることができるという
効果を奏するものである。One major feature of this invention is that the suction pumps 10 and 18
control, the exhaust gas flowing to line 3a and line 3b
This is to control the volume ratio of the analysis gas flowing to the analyzer 17. In other words, by arbitrarily changing this ratio, the mercury concentration of the analysis gas can be changed arbitrarily.For example, if the mercury concentration is extracted at a ratio of 9:1, the sensitivity will be increased by 10 times.
If you take it out at a ratio of 99:1, it will be 100 times more sensitive, and an additional 9
If the sample is extracted at a ratio of 999 to 1, a sensitivity of 10,000 times can be obtained, and the effect is that any desired sensitivity can be obtained at any time in accordance with fluctuations in the sampling concentration of exhaust gas.
第２図は排ガス中の水銀と、この排ガス中に存在する粉
塵、ダスト、ヒユーム、ミスト中の水銀（総水銀）全分
析する方法を示したもので、その特徴はサンプリング部
にある。Figure 2 shows a method for completely analyzing mercury in exhaust gas and mercury (total mercury) in dust, dust, fume, and mist present in this exhaust gas, and its characteristic lies in the sampling section.
第２図においてｌは第１図の場合と同様排ガス煙道で、
その中に含粉塵排ガス取り出し管１９を設け、この取り
出し管１９の取り出し口２０の近傍に、粉塵搬送液体注
加管２１を接続する。この粉塵搬送液体は酸化吸収液に
混入して劣化させないものが望ましく二例えば水、Ｈ，
Ｓ Ｏ，溶液、Ｉ（Ｎｏ。In Figure 2, l is the exhaust gas flue as in Figure 1,
A dust-containing exhaust gas extraction pipe 19 is provided therein, and a dust transport liquid injection pipe 21 is connected to the vicinity of the extraction port 20 of this extraction pipe 19 . It is preferable that this dust transporting liquid is one that does not mix with the oxidation absorption liquid and cause deterioration.For example, water, H,
SO, solution, I (No.
溶液が好適である。Solutions are preferred.
この様に取り出し口２０の近傍において、粉塵搬送液体
を連続性別すること（二より、取り出し口２０から吸引
される粉塵が、粉塵搬送液体中に懸濁されて、酸化吸収
液性加部５′で取り出されるため、粉塵によるライン３
内の閉塞が効果的に防止でき、以降第１図と同様の工程
で処理することにより含粉塵排ガス中の総水銀の連続分
析が行なえるものである。In this way, the dust transport liquid is continuously separated in the vicinity of the take-out port 20 (secondarily, the dust sucked from the take-out port 20 is suspended in the dust transport liquid, and Line 3 due to dust
Blockage in the exhaust gas can be effectively prevented, and continuous analysis of total mercury in dust-containing exhaust gas can be performed by performing the same steps as shown in FIG. 1.
この第２図の工程によれば、大気環境の総水銀の連続分
析が行なえることは勿論である。上記第２図において、
排ガス温度が高温の場合には、必要に応じて冷却ン施こ
丁ことが望ましい。According to the process shown in FIG. 2, it is of course possible to continuously analyze the total mercury in the atmospheric environment. In Figure 2 above,
If the exhaust gas temperature is high, it is desirable to perform cooling and cooling as necessary.
（実施例）
１１石炭火力発電所煙突の一部に第１図に示した装置を
取り付け、第１表の分析条件により処理した。(Example) The device shown in FIG. 1 was attached to a part of the chimney of 11 coal-fired power plants, and treated under the analysis conditions shown in Table 1.
第１表の如〈実施した結果の記録チャートの１例を第３
図に示す。As shown in Table 1, an example of the record chart of the implementation results is shown in Table 3.
As shown in the figure.
第３図から石炭火力発電所のように比較的低濃度の水銀
においても、十分な感度で連続分析できることが判った
。従来法では約２０分間の平均で分析していたものが、
この発明例では水銀濃度を１００倍にすることにより精
度良く、分析所要時間約２分で結果を順次記録し、平均
値では短時間内（：大きな変動が無いと思われていたが
、実際（−は低濃度時の３倍以上のピーク波形があり、
比較的大きな変動を起としていることも判かるようにな
った。From Figure 3, it is clear that even relatively low concentrations of mercury, such as those found in coal-fired power plants, can be continuously analyzed with sufficient sensitivity. In the conventional method, analysis was performed over an average of about 20 minutes, but
In this example of the invention, the mercury concentration was increased by 100 times to achieve high accuracy, and the results were sequentially recorded in approximately 2 minutes, and the average value was calculated within a short period of time. - has a peak waveform more than three times that of low concentration,
It has also become clear that relatively large fluctuations have occurred.
２、 ごみ焼却場煙突の一部に第２図に示した装置を取
り付け、第２表の分析条件により処理した。2. The equipment shown in Figure 2 was installed in a part of the chimney of a garbage incinerator, and the waste was processed according to the analysis conditions shown in Table 2.
第２表の如〈実施した結果の記録チャートの１例を、第
４〜６図に示す。As shown in Table 2, an example of a record chart of the results is shown in Figures 4-6.
この第４〜６図からごみ焼却場のように水銀濃度が大き
く変動する施設においても、任意の感度で総水銀の連続
分析を行えることが判った。From these figures 4 to 6, it was found that continuous analysis of total mercury can be performed with arbitrary sensitivity even in facilities where the mercury concentration fluctuates greatly, such as garbage incinerators.
従来法では、ガス状水銀のみを約２０分間の平均で分析
していたものが、この測定例では排ガス中の含塵も含め
て分析することにより総水銀の分析結果を得ることがで
き、又、排ガス中の水銀濃度に応じて、任意に測定レン
ジを変更することによって、感度良い連続波形を得るこ
とができた。In the conventional method, only gaseous mercury was analyzed on an average of about 20 minutes, but in this measurement example, it is possible to obtain analysis results for total mercury by analyzing dust in the exhaust gas as well. By arbitrarily changing the measurement range according to the mercury concentration in the exhaust gas, we were able to obtain a continuous waveform with good sensitivity.
水銀の波形を見ると、変動するペースとなる波形に鋭い
高濃度ピークが多数乗った形状になっている。これは第
６図の如く分析所要時間約１０秒と応答が早いために、
排ガス中の水銀の変動を鋭敏にとらえた結果得られるも
のである。尚、当施設排ガス中の総水銀変動は、大きい
ものであることが判かった。Looking at the waveform of mercury, we see that the waveform has a fluctuating pace with many sharp high concentration peaks. This is due to the quick response time, which takes about 10 seconds for analysis, as shown in Figure 6.
This is the result of sensitively capturing fluctuations in mercury in exhaust gas. Furthermore, it was found that the total mercury fluctuation in the exhaust gas at this facility was large.
（発明の効果）
以上の如く、この発明によれば、大気環境、排ガス、含
粉塵排ガス中の水銀の連続分析が水銀濃度に関係な〈実
施できる様になり、環境管理に大きく寄与した。もので
ある。(Effects of the Invention) As described above, according to the present invention, continuous analysis of mercury in the atmospheric environment, exhaust gas, and dust-containing exhaust gas can be carried out regardless of the mercury concentration, thereby greatly contributing to environmental management. It is something.
第１図及び第２図はこの発明の分析工程の一例の説明図
、第３図〜第６図は実施例の水銀記録チャートである。
３、３ａ、 ３ｂ・・・ガス取り出しライン４・・・酸
化吸収液容器 ６，１３・・・環状反応部７．１４・
・・気液分離器 １０．１８・・・吸収ポンプ１９
・・・金粉塵ガス取り出し管
２１・・・粉塵搬送液体性別管
代理人 弁理士 茶野木 立 夫
手糸売Ｍ＃ｊｊＥ世！ （自発）
昭和６２年３月１２日FIGS. 1 and 2 are explanatory diagrams of an example of the analysis process of the present invention, and FIGS. 3 to 6 are mercury recording charts of the example. 3, 3a, 3b... Gas take-off line 4... Oxidation absorption liquid container 6, 13... Annular reaction section 7.14.
... Gas-liquid separator 10.18 ... Absorption pump 19
...Gold dust gas extraction pipe 21...Dust transport liquid gender management agent Patent attorney Tachi Chanoki Futete Itouri M#jjE! (Voluntary) March 12, 1986
Claims (2)
のガスに酸化吸収液を連続注加して、水銀蒸気及び水銀
化合物を吸収した酸化吸収液を連続的に取出して、この
両者を気液分離器に導入し、この気液分離器で気体の分
離量を調整して、残余所定量のガスと酸化吸収液を連続
的に取出し、次いでこれに還元溶液を連続注加して、酸
化吸収液中の水銀を水銀蒸気としてガス中に拡散させ、
更に気液分離してガスを連続的に水銀分析することを特
徴とするガス中の水銀連続分析方法。(1) Gas is continuously taken out from the gas generation part, and an oxidizing absorption liquid is continuously injected into this gas, and the oxidizing absorption liquid that has absorbed mercury vapor and mercury compounds is continuously taken out, and both of these are vaporized. The gas is introduced into a liquid separator, and the amount of gas separated is adjusted in this gas-liquid separator, and a predetermined amount of remaining gas and oxidation absorption liquid are continuously taken out.Then, a reducing solution is continuously added to this, and the oxidation The mercury in the absorption liquid is diffused into the gas as mercury vapor,
A method for continuously analyzing mercury in gas, which further comprises separating gas and liquid and continuously analyzing the gas for mercury.
に、含粉塵ガス取出し部近傍において、粉塵搬送液を連
続注加後、酸化吸収液を連続注加する特許請求の範囲第
（１）項記載のガス中の水銀連続分析方法。(2) Claim No. 1, in which the divided dust gas is continuously taken out from the gas generating part, and the oxidation absorbing liquid is continuously added after the dust transport liquid is continuously injected in the vicinity of the dust-containing gas taking out part. Continuous analysis method for mercury in gas as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2178387A JPS63191059A (en) | 1987-02-03 | 1987-02-03 | Continuous analysis of mercury in gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2178387A JPS63191059A (en) | 1987-02-03 | 1987-02-03 | Continuous analysis of mercury in gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63191059A true JPS63191059A (en) | 1988-08-08 |
Family
ID=12064660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2178387A Pending JPS63191059A (en) | 1987-02-03 | 1987-02-03 | Continuous analysis of mercury in gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63191059A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5879948A (en) * | 1997-05-12 | 1999-03-09 | Tennessee Valley Authority | Determination of total mercury in exhaust gases |
| WO2002021122A1 (en) * | 2000-09-08 | 2002-03-14 | Central Research Institute Of Electric Power Industry | Method and apparatus for continuous fractional analysis of metallic mercury and water-soluble mercury in a gas |
| JP2007268427A (en) * | 2006-03-31 | 2007-10-18 | Nippon Instrument Kk | Mercury-reducing catalyst, mercury-converting unit, and measuring device using the unit for measuring whole mercury in exhaust gas |
| JP2008190950A (en) * | 2007-02-02 | 2008-08-21 | Horiba Ltd | Removing method and removing device for selenium oxide in sample, and measuring method and measuring device for mercury in coal combustion exhaust gas using them |
| CN108051383A (en) * | 2017-12-02 | 2018-05-18 | 宁波亿诺维信息技术有限公司 | Flue gas pollutant automatic monitoring system |
| JP2019049451A (en) * | 2017-09-08 | 2019-03-28 | キヤノン株式会社 | Dust collector, substrate processing system, and article manufacturing method |
-
1987
- 1987-02-03 JP JP2178387A patent/JPS63191059A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5879948A (en) * | 1997-05-12 | 1999-03-09 | Tennessee Valley Authority | Determination of total mercury in exhaust gases |
| WO2002021122A1 (en) * | 2000-09-08 | 2002-03-14 | Central Research Institute Of Electric Power Industry | Method and apparatus for continuous fractional analysis of metallic mercury and water-soluble mercury in a gas |
| EP1324034A1 (en) * | 2000-09-08 | 2003-07-02 | Central Research Institute of Electric Power Industry | Method and apparatus for continuous fractional analysis of metallic mercury and water-soluble mercury in a gas |
| US7144736B2 (en) * | 2000-09-08 | 2006-12-05 | Central Research Institute Of Electric Power Industry | Method and apparatus for continuous fractional analysis of metallic mercury and water-soluble mercury in a gas |
| EP1324034A4 (en) * | 2000-09-08 | 2008-10-22 | Central Res Inst Elect | Method and apparatus for continuous fractional analysis of metallic mercury and water-soluble mercury in a gas |
| JP2007268427A (en) * | 2006-03-31 | 2007-10-18 | Nippon Instrument Kk | Mercury-reducing catalyst, mercury-converting unit, and measuring device using the unit for measuring whole mercury in exhaust gas |
| JP2008190950A (en) * | 2007-02-02 | 2008-08-21 | Horiba Ltd | Removing method and removing device for selenium oxide in sample, and measuring method and measuring device for mercury in coal combustion exhaust gas using them |
| JP2019049451A (en) * | 2017-09-08 | 2019-03-28 | キヤノン株式会社 | Dust collector, substrate processing system, and article manufacturing method |
| CN108051383A (en) * | 2017-12-02 | 2018-05-18 | 宁波亿诺维信息技术有限公司 | Flue gas pollutant automatic monitoring system |
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