JP5170974B2 - 排煙脱硝装置 - Google Patents
排煙脱硝装置 Download PDFInfo
- Publication number
- JP5170974B2 JP5170974B2 JP2006094542A JP2006094542A JP5170974B2 JP 5170974 B2 JP5170974 B2 JP 5170974B2 JP 2006094542 A JP2006094542 A JP 2006094542A JP 2006094542 A JP2006094542 A JP 2006094542A JP 5170974 B2 JP5170974 B2 JP 5170974B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- exhaust gas
- ammonia water
- pipe
- denitration
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
(第2の実施の形態) 本発明の第2の実施の形態を、図2を用いて説明する。本実施の形態が前記第1の実施の形態と異なるのは、円筒状の整流板kの上流端に、整流板kを塞ぐように、円板状の多孔板lが設置されている点であり、他の構成は前記第1の実施の形態と同じであるので説明を省略する。
b 脱硝装置入口ダクト
c 脱硝装置
d 脱硝触媒
e アンモニア水配管
f 噴霧空気配管
g パージ空気配管
h 二流体ノズル管
j 外装管
k 整流板
l 多孔板
Claims (2)
- ボイラ排ガス中に気体を用いてアンモニア水を噴霧する二流体ノズル管と、アンモニアを含む排ガスを通過させて脱硝反応を行わせる脱硝触媒とを有してなり、前記二流体ノズル管は、前記アンモニア水が流れる内管と前記気体が流れる外管とからなる二重管を、パージ空気が供給される外装管で覆って三重管状に形成され、前記二重管の先端部の管壁に前記排ガスの流れの下流側に向けて前記アンモニア水を前記気体とともに噴霧する吹出し孔と、前記吹出し孔に対向する前記外装管の管壁に前記アンモニア水と前記気体の噴霧を通過させる開口とが設けられ、前記吹出し孔の中心に対して同心をなす整流管が前記外装管の直交方向に装着され、前記整流管の内径は前記外装管の外径よりも大きく、前記整流管の両端はそれぞれ前記外装管の外周面の上流側と下流側に位置させて装着されてなる排煙脱硝装置。
- 請求項1に記載の排煙脱硝装置において、前記整流管の上流端に、複数の開口を設けた多孔板が、前記整流管の上流側開口を塞ぐように装着されていることを特徴とする排煙脱硝装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006094542A JP5170974B2 (ja) | 2006-03-30 | 2006-03-30 | 排煙脱硝装置 |
PCT/JP2007/051994 WO2007116602A1 (ja) | 2006-03-30 | 2007-02-06 | 排煙脱硝装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006094542A JP5170974B2 (ja) | 2006-03-30 | 2006-03-30 | 排煙脱硝装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007268355A JP2007268355A (ja) | 2007-10-18 |
JP5170974B2 true JP5170974B2 (ja) | 2013-03-27 |
Family
ID=38580905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006094542A Expired - Fee Related JP5170974B2 (ja) | 2006-03-30 | 2006-03-30 | 排煙脱硝装置 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP5170974B2 (ja) |
WO (1) | WO2007116602A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100986358B1 (ko) * | 2008-04-03 | 2010-10-08 | 현대자동차주식회사 | 질소산화물 선택적 촉매 정화장치가 장착된 배기관 |
JP5284722B2 (ja) * | 2008-08-20 | 2013-09-11 | バブコック日立株式会社 | 排煙脱硝装置 |
JP5456038B2 (ja) * | 2009-06-17 | 2014-03-26 | 三菱重工業株式会社 | 水銀除去システム及び水銀含有高温排ガスの水銀除去方法 |
CA2762926C (en) * | 2009-06-17 | 2014-04-01 | Mitsubishi Heavy Industries, Ltd. | Mercury reduction system and mercury reduction method of flue gas containing mercury |
JP5693061B2 (ja) * | 2010-06-30 | 2015-04-01 | 三菱重工業株式会社 | 排ガス処理装置 |
CN104014230A (zh) * | 2014-06-20 | 2014-09-03 | 北京中冶隆生环保科技发展有限公司 | 烟气的湿法脱硝工艺 |
JP6785046B2 (ja) * | 2016-02-26 | 2020-11-18 | 三菱パワー株式会社 | 排気ダクト及びボイラ並びに固体粒子の除去方法 |
JP2017124398A (ja) * | 2017-02-20 | 2017-07-20 | 三菱日立パワーシステムズ株式会社 | ノズル洗浄装置 |
CN108714367B (zh) * | 2018-06-12 | 2021-03-02 | 辽宁基伊能源科技有限公司 | 一种烧结烟尘在线自催化脱硝装置 |
JP7261019B2 (ja) * | 2019-01-21 | 2023-04-19 | 三菱重工業株式会社 | 脱硝装置 |
CN109821415B (zh) * | 2019-02-20 | 2023-12-08 | 山东莱钢永锋钢铁有限公司 | 一种燃煤锅炉scr烟气脱硝双流体加热喷枪*** |
CN113559705B (zh) * | 2021-08-05 | 2023-04-07 | 西安热工研究院有限公司 | 一种引流式scr脱硝尿素直喷*** |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60144928U (ja) * | 1984-03-07 | 1985-09-26 | バブコツク日立株式会社 | 排ガス脱硝装置のアンモニア注入ノズル構造 |
JPS63283726A (ja) * | 1987-05-13 | 1988-11-21 | Mitsubishi Heavy Ind Ltd | アンモニア還元による排煙脱硝装置 |
JP3295419B2 (ja) * | 1990-09-06 | 2002-06-24 | バブコツク日立株式会社 | 脱硝装置へのアンモニア供給装置 |
JP3269964B2 (ja) * | 1996-02-22 | 2002-04-02 | 日立造船株式会社 | ごみ処理設備における噴霧ノズル装置 |
JP3735409B2 (ja) * | 1996-05-29 | 2006-01-18 | バブコック日立株式会社 | 排ガス脱硝装置のアンモニア注入装置 |
JPH11300164A (ja) * | 1998-04-20 | 1999-11-02 | Mitsubishi Heavy Ind Ltd | 脱硝装置を有するボイラプラント、および脱硝方法 |
JPH11333252A (ja) * | 1998-05-29 | 1999-12-07 | Babcock Hitachi Kk | 排ガスの脱硝装置 |
-
2006
- 2006-03-30 JP JP2006094542A patent/JP5170974B2/ja not_active Expired - Fee Related
-
2007
- 2007-02-06 WO PCT/JP2007/051994 patent/WO2007116602A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
JP2007268355A (ja) | 2007-10-18 |
WO2007116602A1 (ja) | 2007-10-18 |
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