JPS63175652A - Prevention of enlargement of discharging wire of electrostatic precipitator - Google Patents
Prevention of enlargement of discharging wire of electrostatic precipitatorInfo
- Publication number
- JPS63175652A JPS63175652A JP62007851A JP785187A JPS63175652A JP S63175652 A JPS63175652 A JP S63175652A JP 62007851 A JP62007851 A JP 62007851A JP 785187 A JP785187 A JP 785187A JP S63175652 A JPS63175652 A JP S63175652A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- flue
- injected
- production
- enlargement
- 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
- 239000012717 electrostatic precipitator Substances 0.000 title claims 2
- 238000007599 discharging Methods 0.000 title abstract 2
- 230000002265 prevention Effects 0.000 title 1
- 239000000126 substance Substances 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 239000000428 dust Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 abstract description 16
- 238000002347 injection Methods 0.000 abstract description 10
- 239000007924 injection Substances 0.000 abstract description 10
- 239000007795 chemical reaction product Substances 0.000 abstract description 9
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract description 9
- 235000012254 magnesium hydroxide Nutrition 0.000 abstract description 9
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract description 9
- 239000000347 magnesium hydroxide Substances 0.000 abstract description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 8
- 239000002253 acid Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 229910000069 nitrogen hydride Inorganic materials 0.000 abstract description 4
- 238000011144 upstream manufacturing Methods 0.000 abstract description 4
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 9
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 7
- 235000011130 ammonium sulphate Nutrition 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 229910019440 Mg(OH) Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- -1 i.e. Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
- B03C3/013—Conditioning by chemical additives, e.g. with SO3
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は？イラ設備用の乾式電気業じん装置（乾式ＥＰ
）等に適用されるＥＰの放電線肥大防止方法に関する。[Detailed Description of the Invention] [Field of Industrial Application] What is the present invention? Dry-type electrical industrial dust equipment (Dry-type EP
), etc., and relates to a method for preventing enlargement of discharge wires of EP.
ボイラから排出されるがス中にはボイラダストの他ＳＯ
ｘ、ＮＯ８等がありそれらの物質は公害規制値を満足す
べき設備（即ちＢＰ、脱硫・脱硝設備）によって処理さ
れている。一方ゴイラヘ供給され７５＃８料〔重油−石
炭Ｓ）によってト紀物質の潟聞は異なるが、重油専焼が
イラの場合、硫黄含有量（８分）の高い重油（Ｈａ油Ｈ
１ｇｈ ５ｕｌｆｕｒ油）を燃料とした場合には、がス
中の５Ｏｘ（ＳＯ□＊ Ｓｏ、 ）濃度が高くなり、特
にＳＯ５濃度が高くなることによってガスの酸露点が上
が９、ガス温度との裕度が小さくなって煙道及びＥＰケ
ーシング、ｆ内部品等に酸腐食を発生させることになる
。これまでの経験では酸露点＋２０℃以上のガス温度を
維持させることによって酸腐食防止対策として推奨して
いる。しかしながら価格の低摩なＨａ油を燃料として使
用される場合には、上記の推奨値が満足されないため酸
腐食対策としてＥＰ入口側の煙道内 ゛に第２図に示す
ようにＮＨ，ガスを注入し、ガス中のＳＯ５がスと反応
させることによって■、 −ＳＯ。Although it is discharged from the boiler, there is boiler dust and SO in the gas.
x, NO8, etc., and these substances are processed by equipment (i.e., BP, desulfurization/denitrification equipment) that satisfies pollution control values. On the other hand, the lagoon of the material supplied to Goira differs depending on the 75#8 feedstock (heavy oil - coal S).
When 1gh 5ulfur oil) is used as fuel, the concentration of 5Ox (SO□*So, The margin becomes smaller and acid corrosion occurs in the flue, EP casing, internal parts, etc. Based on past experience, maintaining the gas temperature above the acid dew point +20°C is recommended as a measure to prevent acid corrosion. However, when the low-cost Ha oil is used as fuel, the above recommended values are not met, so NH and gas are injected into the flue on the EP inlet side as shown in Figure 2 to prevent acid corrosion. When SO5 in the gas reacts with sulfur, ■, -SO.
の反応生成物（大半が（ＮＨ４）２Ｓ０４即ち硫安ダス
ト）ｔ−ＥＰで捕集しガス中のｓｏ、 ｔ−除去してい
た。The reaction products (mostly (NH4)2S04, i.e., ammonium sulfate dust) were collected by t-EP and the so and t-products in the gas were removed.
第２図は従来のＮＨ３注入フロ一式のＥＰを示す図であ
り、１は乾式ＥＰ、２は皿、？ンベ、３は気化器、４は
アキュームレータ、５はＮＨ，７！／ス輸送管、６はＮ
Ｈ３ガス注入母管、７はＮＨ，がス注入ノズルを示す。Fig. 2 is a diagram showing a conventional NH3 injection flow EP set, where 1 is a dry EP, 2 is a plate, and ? 3 is the carburetor, 4 is the accumulator, 5 is NH, 7! /S transport pipe, 6 is N
H3 gas injection main tube, 7 indicates NH gas injection nozzle.
第３図は第２図に示すＥＰ集じん部の放電線の形状を示
す部分拡大図で、第３図（４）はトゲ付放電線８の正常
時の状態を示す図、第３図（Ｂ）は洲、注入によって放
電縁８に形成されたスケール層９付着後の状態を示す図
である。FIG. 3 is a partially enlarged view showing the shape of the discharge wire in the EP dust collection section shown in FIG. 2, and FIG. B) is a diagram showing the state after the scale layer 9 formed on the discharge edge 8 by injection has been deposited.
以上の様にＨ８油の燃料を使用した重油専焼ボイラにお
ける酸腐食の問題は解決されたが、ＮＨ。As mentioned above, the problem of acid corrosion in heavy oil-fired boilers using H8 oil as fuel has been solved, but NH.
ガスを注入することによって生成されるＮＨ，−８ｏ。NH, -8o produced by injecting gas.
の反応物がＥＰ内部に悪影響を及ぼすことが判明した。It was found that the reactants had an adverse effect on the inside of the EP.
即ちＦＴ’の集じん部（一対の放電電極と集じん電極の
間に電位を加えることによってコロナ族ｔを発生させガ
ス中のダストをイオン化することによって集じん板上に
捕集する）には、がス中のゲイラダストの他にＮＨ，−
ＳＯ３の反応生成物が流入するが、ＮＨ，−Ｓｏ、の反
応生成物には安定した（ＮＨ４）２Ｓ０４（硫安）以外
に、反応過程において生成されるＮＨ４ＨＳＯ４（酸性
硫安）等があり、特に酸性硫安は低融点（約１４７℃ン
の物質であるためこの物質が主体となって第３図＠）に
示すように、ＥＰの集じん部を構成している集じん板及
び放電線８に付着固着し非常に固いスケール層９を形成
することになる。この様なスケール層９が成長していっ
だ場合、特に放電線８においては、コロナ放電の起点と
なる先端部がスケール層９で覆われることになり、集じ
ん板と放を線との間の電流の流れを阻害し、その結果と
してＥＰの除じん性能が悪化し、初期の性能を滴定する
ことができなくなる。そこで従来の技術では、スケール
層９が付着・生成されること全緩和することはできない
ため、スケールＮ９ができることを前提として、特にＥ
Ｐの安定した性能を維持きせるために重要な放電線８に
おいてコロナ放電の起点となるトゲを長くすることによ
って、放電Ｒ８の先端部がスケール層９で覆われ正常な
電流値の確保が困難になるまでの運転時間を長くするこ
とで対応していた。That is, in the dust collection part of FT' (which generates corona group t by applying a potential between a pair of discharge electrodes and a dust collection electrode, ionizes the dust in the gas, and collects it on the dust collection plate). , besides the gayla dust in the gas, NH, -
The reaction products of SO3 flow in, but in addition to the stable (NH4)2S04 (ammonium sulfate), the reaction products of NH, -So include NH4HSO4 (acidic ammonium sulfate) generated during the reaction process, and especially acidic Ammonium sulfate is a substance with a low melting point (approximately 147°C), so this substance is the main substance. This results in the formation of a very hard scale layer 9. When such a scale layer 9 continues to grow, especially in the discharge wire 8, the tip of the discharge wire 8, which is the starting point of corona discharge, will be covered with the scale layer 9, and the gap between the dust collecting plate and the wire will be covered with the scale layer 9. As a result, the dust removal performance of the EP deteriorates, making it impossible to titrate the initial performance. Therefore, in the conventional technology, since it is not possible to completely alleviate the adhesion and formation of scale layer 9, it is assumed that scale N9 is formed, and especially E
By lengthening the spines that serve as the starting point for corona discharge in the discharge line 8, which is important for maintaining stable performance of P, the tip of the discharge R8 is covered with a scale layer 9, making it difficult to maintain a normal current value. The company responded by lengthening the driving time until the situation occurred.
■、注入によって発生するＮ’Ｈ３−Ｓｏ、の反応生成
物によるＥＰ集じん部の汚損に対して、従来の技術では
スケール層の発生等の汚損を前提とじた対応（即ち放電
線のトゲを長くする）しかなくスケール層の付着・生成
されることを緩和する様な技術的な方法はなされていな
かった。③ In response to the contamination of the EP dust collecting section due to the reaction products of N'H3-So generated during injection, conventional techniques have taken measures based on the assumption that contamination will occur such as the formation of a scale layer (i.e., removing the thorns of the discharge wire). However, no technical method has been developed to alleviate the adhesion and formation of scale layers.
上記の様なスケール層の付着・生成に対して放電線のト
）ｆ′を長くするという物理的な処置にして本、いずｔ
′ＬＶｉ時間の経過と共にトゲの先＠部もスケール層で
覆われることになり根本的な対策とはなり得ない。In order to prevent the adhesion and formation of scale layers as described above, physical measures such as lengthening f' of the discharge wire can be taken.
'LVi As time passes, the tips of the thorns also become covered with a scale layer, so this cannot be a fundamental countermeasure.
又ＮＨ３−ＳＯ３の反応生成物によって一度スケール膚
が生成されると非常に固い層となって成長していくため
ＥＰの定期点検時においてもスケール層の清掃・除去が
困難である。Furthermore, once a scale layer is generated by the NH3-SO3 reaction product, it grows into a very hard layer, making it difficult to clean and remove the scale layer even during periodic inspections of the EP.
本発明は、上記従来の問題点を解消し、放ｔＩ＃の肥大
化を防止し、長期に亘って安定したＩＰ性能を発揮する
ことができるＥＰの放電線肥大防止方法を提供すること
を目的とする。It is an object of the present invention to provide a method for preventing the enlargement of discharge lines in an EP, which can solve the above-mentioned conventional problems, prevent the enlargement of the discharge tI#, and exhibit stable IP performance over a long period of time. shall be.
ＥＰ集じん部におけるスケール層の付着・生成する主原
因は、ＮＨ３−ＳＯ，反応の過程におｈて生成されるＮ
Ｈｊ（Ｓｏ□（酸性硫安）による影響が最も大きいと考
えられる。従って本発明方法はＮＨ５注入後の煙道にア
ルカリ物質を注入することによって低融点物質である酸
性硫安の生成を抑制し、放電線へのスケール層の付着・
生成を緩和することを特徴とする。The main cause of the adhesion and formation of a scale layer in the EP dust collection area is NH3-SO, N generated during the reaction process.
It is thought that the influence of Hj (So□ (acidic ammonium sulfate)) is the largest. Therefore, the method of the present invention suppresses the production of acidic ammonium sulfate, which is a low melting point substance, by injecting an alkaline substance into the flue after NH5 injection. Adhesion of scale layer to electric wire
It is characterized by easing generation.
尚アルカリ物質としてはＮａ系、Ｃａ系、Ｍｇ系がある
が、Ｎａ系は反応性が良過ぎて添加量が増大しコスト高
となり、またＣａ系は反応物としてＣａ ＳＯ４の固着
が懸念されることから、反応生成物（Ｍｇ５ｏ４）が安
定しているＭｇ（ＯＨ）２粉末全アルカリ初質として使
用することが望ましい。There are Na-based, Ca-based, and Mg-based alkaline substances, but Na-based materials are too reactive and require an increased amount to be added, resulting in high costs, and Ca-based materials are concerned about sticking of CaSO4 as a reactant. Therefore, it is desirable to use the Mg(OH)2 powder as a total alkali initial material in which the reaction product (Mg5o4) is stable.
本発明方法によれば、アルカリ物質の注入によってスケ
ール層の付着・生成が緩和されれば特に放１１！線への
スケールの固着・肥大現象も緩和されることになり、ト
ゲの長い放電線の効果がＥＰ性能をより長期に亘って安
定した性能を発揮させることになる。According to the method of the present invention, if the adhesion and formation of a scale layer is alleviated by the injection of an alkaline substance, it is especially possible to achieve 11! The phenomenon of scale adhesion and enlargement on the wire is also alleviated, and the effect of the discharge wire with long spines allows the EP to exhibit stable performance over a longer period of time.
本発明方法の一実施例を第１図を参照して詳細に説明す
る。An embodiment of the method of the present invention will be described in detail with reference to FIG.
第１図において、１１はアルカリ物質例えばＭｇ （Ｏ
Ｈ） ２粉末貯蔵サイロ、１２はロータリパルプ、１３
はエジェクタ、１４は圧送プロワ、１５はＭｇ（ＯＨ）
粉末の輸送配管、１６はＭｇ（ＯＨ）２粉末の吹込
ノズル、ノーはガス、１８はＮＨ，ガス、１９はＭｇ（
ＯＨ）２供給、２０はＥＰ、２１は煙道を示す。In FIG. 1, 11 is an alkaline substance such as Mg (O
H) 2 powder storage silos, 12 rotary pulp, 13
is an ejector, 14 is a pressure feed blower, 15 is Mg(OH)
Powder transport pipe, 16 is a blowing nozzle for Mg(OH)2 powder, NO is gas, 18 is NH, gas, 19 is Mg(
OH)2 supply, 20 indicates EP, and 21 indicates flue.
第１図において、Ｍｇ （ＯＨ）２粉末は貯蔵サイロ１
１に供給され、ロータリパルプ１２を経て圧送プロワ１
４によって昇圧された空気と共に輸送配管１５を通うＥ
Ｐ２０の上流側の煙道２１へ吹込ノズル１６を介して注
入される。Ｍｇ（ＯＨ）２粉末を注入する煙道２１の更
に上流側ではＮＨ５がス１８に示す如く、従来例の第２
図に示すものと同様ＮＨ３ｙｊｌ”ンペ２の液体アンモ
ニアが気化器３でガス化され、アキュームレータ４に貯
蔵された後ＮＨ３注入母管６を経て注入ノズル７より煙
道内へ注入されＮＨ，−ＳＯ２の反応生成物を形成する
。従ってＭｇ（ＯＨ）２粉末が注入される箇所ではＮＨ
３−ＳＯ，の反応生成物とＭｇ（ＯＨ）２粉末が混合さ
れることになりこの混合ダストがＥＰ２０に流入して捕
集されることになる。In Figure 1, Mg (OH)2 powder is stored in storage silo 1.
1, and is supplied to the pressure blower 1 via the rotary pulp 12.
E passing through the transport pipe 15 with the air pressurized by 4.
It is injected into the flue 21 on the upstream side of P20 through the blow nozzle 16. Further upstream of the flue 21 where the Mg(OH)2 powder is injected, NH5 is in the second state of the conventional example, as shown in S18.
Similar to what is shown in the figure, liquid ammonia in NH3yjl'' pump 2 is gasified in a vaporizer 3, stored in an accumulator 4, and then injected into the flue through an NH3 injection main pipe 6 and an injection nozzle 7 to produce NH, -SO2. Therefore, where the Mg(OH)2 powder is injected, NH
The reaction product of 3-SO, and Mg(OH)2 powder are mixed, and this mixed dust flows into the EP20 and is collected.
本発明方法によれば、アルカリ物質例えばＭｇ （ＯＨ
） ２粉末を注入することによって、ＮＨ，−８ｏ３の
反応生成物の低融点′＠質である酸性硫安（ＮＴ（４Ｈ
８Ｏ４）の生成を抑制し、スケール層の付着・生成を緩
和することが可能となる。こｎ、によってＥＰの集じん
性能を安定させるために特に重要となる荷電状態に影響
を及ぼす放１線へのスケールの付着・生成による肥大現
象が緩和され、従来の放″ｘｉの形￥Ｋ（トｒ付放電勝
）効果と共にＥＰ性能をより長期に亘って安定した性能
を発渾させることができる等の優れた効果が奏せられる
。According to the method of the invention, alkaline substances such as Mg (OH
) 2 powder, acidic ammonium sulfate (NT(4H
8O4) and alleviate the adhesion and formation of a scale layer. This alleviates the enlargement phenomenon caused by the adhesion and formation of scale on the radiation line, which affects the charge state, which is particularly important for stabilizing the dust collection performance of EP, and improves the conventional radiation shape In addition to the (tr-equipped discharge win) effect, excellent effects such as being able to develop stable EP performance over a longer period of time can be achieved.
第１図は本発明方法ｆ：実施するのに使用するＥＰ装置
の一例の構成を示す概略図、第２図は従来例の構成を示
す図、第３図は第２図におけるＥＰ集じん部の放電線の
形状を示す部分断面図で第３図（Ａ）は正常時、第３図
（Ｂ）はスケール層の生成後の状態を示す図である。
１１・・・Ｍｇ（ＯＨ）２粉末貯蔵サイロ、１６・・・
Ｍｇ （ＯＨ）２粉末の吹込ノズル、１８・・・皿、ガ
ス、２０・−ＥＰ。
２１・・・煙道。Fig. 1 is a schematic diagram showing the configuration of an example of an EP device used to carry out method f of the present invention, Fig. 2 is a diagram showing the configuration of a conventional example, and Fig. 3 is an EP dust collection section in Fig. 2. FIG. 3(A) is a partial cross-sectional view showing the shape of a discharge line in a normal state, and FIG. 3(B) is a diagram showing a state after a scale layer is generated. 11...Mg(OH)2 powder storage silo, 16...
Mg (OH)2 powder blowing nozzle, 18... dish, gas, 20.-EP. 21... Flue.
Claims (1)
より、ＮＨ＿３−ＳＯ＿３反応生成過程で発生する低融
点物質（ＮＨ＿４ＨＳＯ＿４）の生成を抑制し、放電線
へのダスト固着、肥大化を防止することを特徴とする電
気集じん装置の放電線肥大防止方法。By injecting an alkaline substance into the flue after NH_3 is injected, it is possible to suppress the production of low-melting point substances (NH_4HSO_4) generated in the NH_3-SO_3 reaction generation process, and prevent dust from adhering to the discharge wire and enlarging it. A method for preventing enlargement of discharge wires in an electrostatic precipitator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62007851A JPS63175652A (en) | 1987-01-16 | 1987-01-16 | Prevention of enlargement of discharging wire of electrostatic precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62007851A JPS63175652A (en) | 1987-01-16 | 1987-01-16 | Prevention of enlargement of discharging wire of electrostatic precipitator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63175652A true JPS63175652A (en) | 1988-07-20 |
Family
ID=11677128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62007851A Pending JPS63175652A (en) | 1987-01-16 | 1987-01-16 | Prevention of enlargement of discharging wire of electrostatic precipitator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63175652A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007031552A1 (en) * | 2005-09-15 | 2007-03-22 | Solvay Chemicals, Inc. | Sulfur trioxide removal from a flue gas stream |
-
1987
- 1987-01-16 JP JP62007851A patent/JPS63175652A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007031552A1 (en) * | 2005-09-15 | 2007-03-22 | Solvay Chemicals, Inc. | Sulfur trioxide removal from a flue gas stream |
| EA015416B1 (en) * | 2005-09-15 | 2011-08-30 | Солвей Кемикалз, Инк. | Sulfur trioxide removal from a flue gas stream |
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