JPS63287534A - Treatment of exhaust gas - Google Patents
Treatment of exhaust gasInfo
- Publication number
- JPS63287534A JPS63287534A JP62122444A JP12244487A JPS63287534A JP S63287534 A JPS63287534 A JP S63287534A JP 62122444 A JP62122444 A JP 62122444A JP 12244487 A JP12244487 A JP 12244487A JP S63287534 A JPS63287534 A JP S63287534A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- hydrogen radicals
- contg
- nox
- exhaust gas
- 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.)
- Granted
Links
- 239000007789 gas Substances 0.000 claims abstract description 66
- 239000001257 hydrogen Substances 0.000 claims abstract description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 17
- 239000002243 precursor Substances 0.000 claims abstract description 8
- 238000010894 electron beam technology Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 22
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 28
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 229910000069 nitrogen hydride Inorganic materials 0.000 abstract description 8
- 229910021529 ammonia Inorganic materials 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 239000008246 gaseous mixture Substances 0.000 abstract 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000003463 adsorbent Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 241000270666 Testudines Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、排ガス中に含まれるＮＯＸおよびＳＯＸを電
磁波あるいは電子ビームを利用して除去する方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for removing NOX and SOX contained in exhaust gas using electromagnetic waves or electron beams.
従来から燃焼排ガス中のＮＯＸ、ＳＯＸ除去方法は多接
触還元を行う方法等乾式の触媒による方法が主流を占め
ており、また、ＳＯＸに対しては吸収液として石灰水溶
液を用い副生物として石こうを回収する石灰−石こう法
による湿式法等が主流を成している。Conventionally, the mainstream method for removing NOX and SOX from combustion exhaust gas has been dry catalytic methods such as multi-catalytic reduction. Wet methods such as lime-gypsum recovery methods are the mainstream.
このような従来の排ガス処理技術では、Ｎｏ工。 With such conventional exhaust gas treatment technology, there is no work.
ＳＯＸの処理はそれぞれ別々のプロセスで実施され、そ
れぞれ固体の脱硝触媒および吸収媒体としての石灰水溶
液や固体吸着剤等が必要であり、さらにまた脱硝と脱硫
とを複数の段階で行なうため、プロセスは複雑となり、
したがって、使用する機器の点数も多くなり、その結果
、装置費や運転費が多額になるという問題点かありた。SOX treatment is carried out in separate processes, each requiring a solid denitrification catalyst and an aqueous lime solution or solid adsorbent as an absorption medium.Furthermore, since denitrification and desulfurization are performed in multiple stages, the process is complicated. becomes complicated,
Therefore, there is a problem in that the number of devices used increases, and as a result, equipment costs and operating costs increase.
本発明は、上記のような従来の排ガス処理方法の欠点を
改良した排ガスの処理方法すなわち排ガス中のＮｏｘお
よびＳＯＸを処理するための触媒や吸収液および吸着剤
等を必要としないでＮｏ工とＳＯＸとを単一プロセスで
一段階で処理できる新規なＮＯＸおよびＳＯＸの除去方
法を提供することを目的としたものである。The present invention is an exhaust gas treatment method that improves the drawbacks of the conventional exhaust gas treatment methods as described above, that is, it does not require catalysts, absorbents, adsorbents, etc. for treating NOx and SOX in exhaust gas. The purpose of this invention is to provide a novel method for removing NOX and SOX that can treat SOX in a single process and in one step.
本発明はＮＯＸおよびＮＯＸを含む排ガスの処理方法に
おいて、水素ラジカルを発生する前駆体を含むガスに電
磁波あるいは電子ビームを照射して水素ラジカ、ルな生
成させ、この水素ラジカルを含むガスを上記の排ガスに
混合して、ＮＯＸおよびＮＯＸを同時に分解処理するこ
とを特徴とする排ガスの処理方法を提案するものである
。The present invention is a method for treating NOX and exhaust gas containing NOX, in which a gas containing a precursor that generates hydrogen radicals is irradiated with electromagnetic waves or an electron beam to generate hydrogen radicals, and the gas containing hydrogen radicals is converted into the gas containing hydrogen radicals. The present invention proposes an exhaust gas treatment method characterized by simultaneously decomposing NOx and NOx by mixing them with exhaust gas.
アンモニア等の水素ラジカルを発生する前駆体を含むガ
スに、電磁波あるいは電子ビームを照射すると、前駆体
や共存する物質から水素ラジカル（Ｈりや酸素ラジカル
（Ｏ・）が発生する。 これらのラジカルを含むガスを
処理対象のＮｏ工およびＮＯＸを含む排ガスに注入し混
合するとたとえば次のような反応が生じる。When a gas containing a precursor that generates hydrogen radicals such as ammonia is irradiated with electromagnetic waves or an electron beam, hydrogen radicals (H and oxygen radicals (O)) are generated from the precursor and coexisting substances. When the gas is injected into and mixed with the NOx to be treated and the exhaust gas containing NOX, the following reaction occurs, for example.
２Ｎｏ＋４Ｈ０，Ｎ２＋２Ｈ２ｏ・・・（１）ＳＯ□＋
４Ｈ・→Ｓ ＋ ２ａ２ｏ・・・（２）Ｓｏ２＋ Ｏ−
＋ Ｓｏ３！（ＮＨ４）２Ｓｏ４−（３）上記の（１）
、 （２１弐に示すようＫＮＯは還元されてＮ２に、
Ｓ０２は還元されて単体イオウであるＳに分解される。2No+4H0, N2+2H2o...(1) SO□+
4H・→S + 2a2o...(2) So2+ O-
+ So3! (NH4)2So4-(3) (1) above
, (As shown in 212, KNO is reduced to N2,
S02 is reduced and decomposed into S, which is simple sulfur.
また、Ｏ・とＳＯ２からＳＯ３が発生し、更にこれが水
および水素ラジカルの前駆体として供給したアンモニア
の残余のアンモニアと反応して硫安が生成する。生成す
るＮ２やＮ２０は無害であり後処理の必要がないがＳお
よび（ＮＨ４）２Ｓｏ４は処理ガス中に固体状で含まれ
るので集塵器で除去される。Further, SO3 is generated from O. and SO2, and this reacts with water and residual ammonia from the ammonia supplied as a hydrogen radical precursor to generate ammonium sulfate. The generated N2 and N20 are harmless and do not require post-treatment, but S and (NH4)2So4 are contained in the processing gas in solid form and are therefore removed by a dust collector.
本発明の方法で用いられる水素ラジカルを発生する前駆
体としては、アンモニア、アミン、ヒドラジン、アルコ
ール、ホルムアルデヒド等あるいはそれらの誘導体があ
げられる。Precursors that generate hydrogen radicals used in the method of the present invention include ammonia, amines, hydrazine, alcohols, formaldehyde, etc., and derivatives thereof.
また、本発明の方法では、電磁波としては紫外・可視・
赤外光およびマイクロ波が用いられるが、波長範囲が１
．５０５ｍ〜１６μ惰の紫外・可視侍外光としては、ア
ルノン、ＣＯ□、エキサイマ等のガスレーザシステムお
よびイットリウムーアルミニウムーガーネ、 ） （Ｙ
ＡＧ）等の固体レーザシステムを用いて出射されるレー
ザ光が用いられる。In addition, in the method of the present invention, electromagnetic waves include ultraviolet, visible, and
Infrared light and microwaves are used, but the wavelength range is 1
．． For ultraviolet/visible external light of 505 m to 16μ
Laser light emitted using a solid-state laser system such as AG) is used.
さらにまた上記のマイクロ波を用いる場合は、水素ラジ
カルを発生する前駆体を誘導した空洞共振器内で照射す
る。Furthermore, when the above-mentioned microwave is used, it is irradiated within a cavity resonator in which a precursor for generating hydrogen radicals is induced.
なお、水素ラジカルを含むガスは、排ガスに対して、排
ガスが露点に致らない温度、すなわち５０〜１００℃の
温度範囲で水素ラジカルとＮＯＸ＋ＳＯＸのモル比が３
：１以下になるように混合される。In addition, the gas containing hydrogen radicals has a molar ratio of hydrogen radicals to NOX + SOX of 3 at a temperature where the exhaust gas does not reach the dew point, that is, in a temperature range of 50 to 100°C.
: Mixed so that it is 1 or less.
つぎに本発明の方法について 行なった実施例を第１１図の説明図に基いて説明する。Next, regarding the method of the present invention The carried out embodiment will be explained based on the explanatory diagram of FIG. 11.
Ｎ０１ＳＯ２、ＮＨ３、Ｎ２の試験ガスがそれぞれ別々
に封入されている試験ガスボンベ１からガス流量調整器
２により流量を調整してＮＨ３ガスとＮ２ガスとを抜き
出し混合してＮＨ３濃度が１％のＮＨ３含有ガス３を調
整した。ついでこのＮＥＩ３含有ガス３をガス流量３０
Ｃｅ／８で反応セル４に導入し、ＡｒＦエキシマレーザ
−システム５からの波長１９３ ｎｍのレーザー光６を
Ｚｏｏ Ｈｚの／４ルス発振の条件（１〜１．０ＯＨｚ
で発振させてもよい）で連続照射した。NH3 gas and N2 gas are extracted from a test gas cylinder 1 in which the test gases of N01SO2, NH3, and N2 are individually sealed by adjusting the flow rate with a gas flow regulator 2 and mixed to produce an NH3-containing gas with an NH3 concentration of 1%. Adjusted gas 3. Next, this NEI3-containing gas 3 was supplied at a gas flow rate of 30
Ce/8 was introduced into the reaction cell 4, and the laser beam 6 with a wavelength of 193 nm from the ArF excimer laser system 5 was oscillated under Zoo Hz /4 Luss oscillation conditions (1 to 1.0 OHZ).
oscillation may be performed).
レーザー光の照射罠よりＮＨ３は励起されＨ・ラジカル
が生成する。NH3 is excited by the laser beam irradiation trap and H radicals are generated.
一方、ＮＨ３含有ガスを調整する場合と同様な方法で、
Ｎｏ、 ＳＯ２およびＮ２ガスを試験ガスボンば１から
抜き出し混合して、ＮＯ濃度１００ｐ１１１１８０□濃
度６００１１％の供試ガス７を調整した。このようにし
く調整した供試ガス７をガス流量３０ＣＣ／Ｓ勾でガス
混合器８に導き反応セル４からのＨ・ラジカルを含むガ
スと８０℃で混合した。On the other hand, in the same way as when adjusting the NH3-containing gas,
No. 2, SO2 and N2 gases were extracted from the test gas bomb 1 and mixed to prepare a test gas 7 having an NO concentration of 100p111180□ and a concentration of 60011%. The test gas 7 thus adjusted was introduced into the gas mixer 8 at a gas flow rate of 30 CC/S and mixed with the H radical-containing gas from the reaction cell 4 at 80°C.
混合すると同時に供試ガメ７中に含まれているＮｏと８
０２はＨ・と反応して分解しＮ２とＳに変換する。At the same time as mixing, No. 8 contained in test turtle 7
02 reacts with H., decomposes, and converts into N2 and S.
反応後のガスをガス組成分析計９に導きガス組成を分析
しＮｏおよびＳ０２の分解率を求めた。その結果、ＮＯ
およびＳ０２の分解率は共に７０％でありた。この実験
例から本発明の方法は排ガス処理に有効であることを認
めた。The gas after the reaction was introduced into a gas composition analyzer 9 and the gas composition was analyzed to determine the decomposition rate of No and S02. As a result, NO
The decomposition rates of both S02 and S02 were 70%. From this experimental example, it was confirmed that the method of the present invention is effective for exhaust gas treatment.
本発明の排ガスの処理方法によれば次のような効果を奏
する。According to the exhaust gas treatment method of the present invention, the following effects are achieved.
（１） ＮＯＸとＮＯＸを別々のプロセスでかつ複数
段階で処理する必要がなく、単一プロセスで一段でＮＯ
ＸとＳＯＸとを同時に処理することができ、プロセスが
単純となり、したがりて必要とする機器点数も少なくな
る。(1) There is no need to treat NOX and NOX in separate processes and in multiple stages;
X and SOX can be processed simultaneously, simplifying the process and therefore requiring less equipment.
（２） 従来のプロセスで必要とした触媒や吸収液、
吸着剤等を必要としない。(2) Catalysts and absorption liquids required in conventional processes,
No adsorbent is required.
（３）排ガス中のＮＯＸおよびＳＯＸを処理するためＫ
、本発明では処理すべき排ガス全体に電磁波あるいは電
子ビームを照射するのではなく、添加するガスにのみ電
磁波あるいは電子ビームを照射させるので、ＮＯＸおよ
びＳｏ：ｃとの反応性、反応効率が向上し、また、排ガ
スによる光学系の汚染が防止され、排ガス中の不純物に
よるエネルギのロスを低減することが可能である。(3) K for treating NOX and SOX in exhaust gas
In the present invention, instead of irradiating the entire exhaust gas to be treated with electromagnetic waves or electron beams, only the gas to be added is irradiated with electromagnetic waves or electron beams, so the reactivity and reaction efficiency with NOX and So:c are improved. Furthermore, contamination of the optical system by exhaust gas can be prevented, and energy loss due to impurities in exhaust gas can be reduced.
第１図は本発明の詳細な説明するための説明図である。
１・・・試料ガスボンベ、２・・・ガス流量調整器。
３・・・ＮＨ３含有ガス、 ４・・・反応セル。
５・・・ＡｒＦエキシマレーザ−システム。
６・・・レーザー光、 ７・・・供試ガス。
８・・・ガス混合器、 ９・・・ガス組成分析計
。FIG. 1 is an explanatory diagram for explaining the present invention in detail. 1... Sample gas cylinder, 2... Gas flow rate regulator. 3... NH3-containing gas, 4... Reaction cell. 5...ArF excimer laser system. 6... Laser light, 7... Test gas. 8... Gas mixer, 9... Gas composition analyzer.
Claims (1)
て、水素ラジカルを発生する前駆体を含むガスに電磁波
あるいは電子ビームを照射して水素ラジカルを生成させ
、この水素ラジカルを含むガスを上記の排ガスに混合し
て、ＮＯ＿ＸおよびＳＯ＿Ｘを同時に分解処理すること
を特徴とする排ガスの処理方法。In a method for treating exhaust gas containing NO_X and SO_X, a gas containing a precursor that generates hydrogen radicals is irradiated with electromagnetic waves or an electron beam to generate hydrogen radicals, and the gas containing the hydrogen radicals is mixed with the above exhaust gas. , NO_X and SO_X are simultaneously decomposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62122444A JPH0815532B2 (en) | 1987-05-21 | 1987-05-21 | Exhaust gas treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62122444A JPH0815532B2 (en) | 1987-05-21 | 1987-05-21 | Exhaust gas treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63287534A true JPS63287534A (en) | 1988-11-24 |
| JPH0815532B2 JPH0815532B2 (en) | 1996-02-21 |
Family
ID=14836000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62122444A Expired - Lifetime JPH0815532B2 (en) | 1987-05-21 | 1987-05-21 | Exhaust gas treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0815532B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6411628A (en) * | 1987-07-03 | 1989-01-17 | Mitsubishi Heavy Ind Ltd | Removing method of nox |
| JPH0199633A (en) * | 1987-10-09 | 1989-04-18 | Mitsubishi Heavy Ind Ltd | Treatment of exhaust gas |
| WO1992004963A1 (en) * | 1990-09-20 | 1992-04-02 | Molecular Technology Corporation | Conversion of formaldehyde and nitrogen to a gaseous product and use of gaseous product in reduction of nitrogen oxide in effluent gases |
| JP2010058009A (en) * | 2008-09-01 | 2010-03-18 | Landmark Technology:Kk | Method of decomposing nitrogen trifluoride and device using this method |
| JP2012076033A (en) * | 2010-10-04 | 2012-04-19 | Ushio Inc | Method and apparatus for non-catalytic denitration of exhaust gas |
| US9353665B2 (en) * | 2014-09-15 | 2016-05-31 | Cummins Emission Solutions, Inc. | Ammonia generation system for an SCR system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5215265A (en) * | 1975-07-24 | 1977-02-04 | Telcon Metals Ltd | Lead frame for semicoductors |
| JPS58884A (en) * | 1981-06-24 | 1983-01-06 | Nakano Vinegar Co Ltd | Preparation of adlay vinegar |
| JPS6168126A (en) * | 1984-09-10 | 1986-04-08 | Ishikawajima Harima Heavy Ind Co Ltd | Wet method for desulfurizing and denitrating stack gas |
| JPS62250933A (en) * | 1986-04-24 | 1987-10-31 | Ebara Corp | Exhaust gas treatment method and device using electron beam irradiation |
-
1987
- 1987-05-21 JP JP62122444A patent/JPH0815532B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5215265A (en) * | 1975-07-24 | 1977-02-04 | Telcon Metals Ltd | Lead frame for semicoductors |
| JPS58884A (en) * | 1981-06-24 | 1983-01-06 | Nakano Vinegar Co Ltd | Preparation of adlay vinegar |
| JPS6168126A (en) * | 1984-09-10 | 1986-04-08 | Ishikawajima Harima Heavy Ind Co Ltd | Wet method for desulfurizing and denitrating stack gas |
| JPS62250933A (en) * | 1986-04-24 | 1987-10-31 | Ebara Corp | Exhaust gas treatment method and device using electron beam irradiation |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6411628A (en) * | 1987-07-03 | 1989-01-17 | Mitsubishi Heavy Ind Ltd | Removing method of nox |
| JPH0199633A (en) * | 1987-10-09 | 1989-04-18 | Mitsubishi Heavy Ind Ltd | Treatment of exhaust gas |
| WO1992004963A1 (en) * | 1990-09-20 | 1992-04-02 | Molecular Technology Corporation | Conversion of formaldehyde and nitrogen to a gaseous product and use of gaseous product in reduction of nitrogen oxide in effluent gases |
| JP2010058009A (en) * | 2008-09-01 | 2010-03-18 | Landmark Technology:Kk | Method of decomposing nitrogen trifluoride and device using this method |
| JP2012076033A (en) * | 2010-10-04 | 2012-04-19 | Ushio Inc | Method and apparatus for non-catalytic denitration of exhaust gas |
| US9353665B2 (en) * | 2014-09-15 | 2016-05-31 | Cummins Emission Solutions, Inc. | Ammonia generation system for an SCR system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0815532B2 (en) | 1996-02-21 |
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