JP2003172132A - SOOT AND NOx REMOVING DEVICE FOR INTERNAL/EXTERNAL COMBUSTION ENGINE - Google Patents
SOOT AND NOx REMOVING DEVICE FOR INTERNAL/EXTERNAL COMBUSTION ENGINEInfo
- Publication number
- JP2003172132A JP2003172132A JP2001402340A JP2001402340A JP2003172132A JP 2003172132 A JP2003172132 A JP 2003172132A JP 2001402340 A JP2001402340 A JP 2001402340A JP 2001402340 A JP2001402340 A JP 2001402340A JP 2003172132 A JP2003172132 A JP 2003172132A
- Authority
- JP
- Japan
- Prior art keywords
- soot
- fluidized bed
- nox
- combustion
- 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
Landscapes
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Treating Waste Gases (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明はデーゼルエンジンなどの
内燃機関において、排ガス中のすす（未燃カーボン）、
及び窒素酸化物（ＮＯｘ）の除去に関するものであり、
車輌、船舶、及び定置型原動機用ジーゼル機関に利用さ
れるものである。
【０００２】
【従来の技術】従来、この種のものにあっては、すすの
除去に当ってはフィルター方式によるものが実用化され
ているが、その目づまり防止のための対策などよりコス
ト高となり、また、すす除去、ＮＯｘ除去、及びすす燃
焼灰の除去を完結する装置は実用化されていない。
【０００３】
【発明が解決しようとする課題】従来の技術で述べたも
のにあっては、次のような問題点を有していた。デーゼ
ルエンジンの排気中のすす除去は、フィルター方式によ
るものが実用化されているが、フィルター内のすすの滞
積防止のため、すす除去装置は高コストなものとなって
おり、その普及を阻害している。本願は、従来の技術の
有する、このような問題点に鑑みてなされたものであ
り、その目的とするところは、次のようなことのできる
ものを提供しようとするものである。
【０００４】本発明は、排気ガス中のすすは流動層によ
る触媒燃焼によるものとするが、デーゼルエンジンの排
ガス温度４００℃程度では完全にすすを燃焼させること
は困難であり、すすの完全な燃焼を促進する必要があ
る。また、すすの燃焼による灰分が、大容量機関では問
題になることがあり、流動層の排出側に固定層を設置
し、灰分を捕集し、またその固定層を利用して排ガス中
のＮＯｘの除去をしようとするものである。
【０００５】
【課題を解決するための手段】上記目的を達成するため
に、本発明は次記のようになるものである。すすの流動
層による触媒燃焼において、ディーゼルエンジンの排ガ
ス温度４００℃程度で完全燃焼を確実にするため、流動
層は内部循環流動層を形成し、燃焼灰分は内部循環流動
層の排出側に固定層を設ける。その固定層の粒子媒体
は、選択還元脱硝剤（例えば、ゼオライトに銅イオンを
担持した触媒）として、固定層へのガス流入部より尿素
の加水分解したアンモニア（ＮＨ３）を供給し、排ガス
中の（ＮＯｘ）をＮ２、Ｏ２に還元する。また、すすの
燃焼灰、及びＮＯｘにおいて、小容量機関の場合は固定
層を省略し、内部循環流動層のみとして装置の簡素化も
し得るものとし、車輌、船舶に搭載するとき、内部循環
流動層を、小区分に分割して、車輌、船舶のヨコ振れ、
タテ振れ、及び急制動時の流動層粒子の偏りを防止し、
排ガスの流動層内での吹き抜けを生じないようにしてい
る。
【０００６】
【実施例】実施例について図面を参照して説明する。図
１においてケース１の中に内部循環流動ｎ個と、固定層
１個を収納している。デーゼル機関の排ガスは流入口２
より流入し流動層分散板１２を経て内部循環流動層１０
において流動層粒子１１を流動化する。また内部循環流
動層１０は、小区分に分割されている。流動層粒子は、
触媒燃焼を促進するため、ゼオライトにＮｉまたはＦｅ
を担持したものを用い、流動層粒子１１は排ガスにより
流動化し、その動きは流動層上部傾斜板１３に沿ってガ
ス流路を形成し、そのガスの流れに誘導されて流動層粒
子１１が移動し、ケース１の側面に至ると、ケース側面
傾斜部１ａに沿って降下することより流動層粒子１１に
循環性を付加させて、流動層粒子１１と排ガス中すすと
の接触による触媒燃焼を促進させる。
【０００７】流動層粒子１１は、車輌、船舶などに搭載
のとき、ヨコ振れ、タテ振れ、または急制動により粒子
が偏りすることを防止するため、内部循環流動層１０の
一辺の長さ（ａ，ｂ）は流動層静上層高ｈの３倍以内と
してｎ個に分割して、流動層粒子１１の偏りによる、排
ガスの吹き抜けを防止する。
【０００８】内部循環流動層１０を流出した排ガスは、
すすの燃焼による灰分を随伴するため、その灰分は固定
層２０に流入し、固定層粒子２１間に捕集される。固定
層粒子２１の粒径は流動層粒子１１の粒径の３〜６倍と
し固定層２０内のガス通過による圧力損失の上昇を抑制
する。また、固定層２０内にダスト集積による圧力損失
上昇時はガス排出口３より逆洗空気を供給し、ＮＯｘ還
元用ガス注入口４より排出し、固定層２０を逆洗する。
固定層粒子２１にはゼオライトにＣｕイオンを担持し
た、ＮＯｘ選択還元触媒を用い、還元剤にジメチルエー
テル（ＤＭＥ）、または尿素の加水分解により得たアン
モニアＮＨ３により、ＮＯｘの選択還元によりＮ２，Ｏ
２に分離する。
【０００９】以上において、小容量デーゼル機関など、
すすの燃焼灰、及びＮＯｘが問題にならないときは、図
２に示すように、固定層２０を省略し、ｎ個の内部循環
流動層１０の半数を対称に配置して装置を簡略化する。
作用については効果とともに説明する。
【０００１０】
【発明の効果】本発明は、上求の通り構成されているの
で次の記載する効果を有する。従来の技術では、デーゼ
ル機関の排出ガス中のすすの除去は、微細な多孔質のフ
ィルターを使用しており、すすのフィルター内部での完
全燃焼が不確実な時には（デーゼル機関の軽負荷運転の
とき）すすがフィルター内に滞留し、その除去対策を必
要とし、コスト高をもたらしていた。本発明では、内部
循環流動層を排ガス通過によって形成して、すすの燃焼
を触媒燃焼により確実なものとし、すす燃焼の灰分は、
内部循環流動層の排出側にある固定層により集塵する。
またその固定層粒子には、ＮＯｘの選択還元触媒を用い
ることにより、固定層にジメチルエーテル（ＤＭＥ）、
または尿素水を霧状に噴霧して尿素の加水分解によるア
ンモニアＮＨ３を発生させ、固定層内でＮＯｘを選択的
に還元してＮ２，Ｏ２に分離する。以上において、本発
明は、車輌、船舶に搭載の場合においても小分割した流
動層の集合体としていることより、流動層粒子の偏りを
防止し、さらに固定層との組合せより、排ガス中のＮＯ
ｘ、及びすすの燃焼灰を除去する効果を有するものとし
ている。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soot (unburned carbon) in exhaust gas in an internal combustion engine such as a diesel engine.
And removal of nitrogen oxides (NOx)
It is used for vehicles, ships, and diesel engines for stationary prime movers. 2. Description of the Related Art Conventionally, this type of filter has been put into practical use for removing soot, but the cost is higher than measures for preventing clogging. In addition, an apparatus that completes the removal of soot, NOx, and soot combustion ash has not been put to practical use. [0003] The above-mentioned prior art has the following problems. The soot removal in diesel engine exhaust has been practically done by a filter method.However, to prevent the accumulation of soot in the filter, soot removal equipment is expensive and hinders its spread. are doing. The present application has been made in view of such problems of the conventional technology, and has as its object to provide the following. In the present invention, soot in exhaust gas is caused by catalytic combustion in a fluidized bed. However, it is difficult to completely burn soot at an exhaust gas temperature of a diesel engine of about 400 ° C. Need to be promoted. In addition, ash due to soot combustion may be a problem in large-capacity engines. A fixed bed is installed on the discharge side of the fluidized bed, ash is collected, and NOx in exhaust gas is collected using the fixed bed. Is to be removed. [0005] In order to achieve the above object, the present invention is as follows. In catalytic combustion using a fluidized bed of soot, the fluidized bed forms an internal circulating fluidized bed to ensure complete combustion at the exhaust gas temperature of the diesel engine at around 400 ° C, and the combustion ash is fixed to the exhaust side of the internal circulating fluidized bed. Is provided. The particle medium of the fixed bed supplies ammonia (NH 3 ) obtained by hydrolyzing urea from a gas inlet into the fixed bed as a selective reduction denitration agent (for example, a catalyst in which copper ions are supported on zeolite). (NOx) is reduced to N 2 and O 2 . In the case of a small-capacity engine, the soot combustion ash and NOx may omit the fixed bed and simplify the apparatus only with the internal circulating fluidized bed. Is divided into small sections,
Prevents vertical run-out and bias of fluidized bed particles during sudden braking,
Exhaust gas is prevented from blowing through in the fluidized bed. An embodiment will be described with reference to the drawings. In FIG. 1, n internal circulation flows and one fixed bed are accommodated in a case 1. Exhaust gas of diesel engine is inflow port 2
From the internal circulating fluidized bed 10
, The fluidized bed particles 11 are fluidized. The internal circulating fluidized bed 10 is divided into small sections. The fluidized bed particles
Ni or Fe is added to the zeolite to promote catalytic combustion.
The fluidized bed particles 11 are fluidized by the exhaust gas, and the movement forms a gas flow path along the fluidized bed upper inclined plate 13, and the fluidized bed particles 11 move by being guided by the gas flow. Then, when reaching the side surface of the case 1, the fluidized bed particles 11 are circulated by descending along the case side inclined portion 1 a to promote catalytic combustion by contact between the fluidized bed particles 11 and soot in exhaust gas. Let it. When the fluidized bed particles 11 are mounted on a vehicle, a ship, or the like, the length (a) of one side of the internal circulating fluidized bed 10 is prevented in order to prevent the particles from being biased due to horizontal vibration, vertical vibration, or sudden braking. , B) are divided into n pieces within three times the height h of the fluidized bed upper layer to prevent blow-off of exhaust gas due to unevenness of the fluidized bed particles 11. The exhaust gas flowing out of the internal circulating fluidized bed 10 is
Since ash due to soot combustion accompanies, the ash flows into the fixed bed 20 and is collected between the fixed bed particles 21. The particle size of the fixed bed particles 21 is set to 3 to 6 times the particle size of the fluidized bed particles 11 to suppress an increase in pressure loss due to gas passing through the fixed bed 20. When the pressure loss rises due to dust accumulation in the fixed layer 20, backwash air is supplied from the gas outlet 3 and discharged from the NOx reducing gas inlet 4 to backwash the fixed layer 20.
For the fixed layer particles 21, a NOx selective reduction catalyst in which Cu ions are supported on zeolite is used, and dimethyl ether (DME) or ammonia NH 3 obtained by hydrolysis of urea is used as a reducing agent, and NO 2 is selectively reduced by NOx. O
Separate into 2 . In the above, a small capacity diesel engine, etc.
When soot combustion ash and NOx do not matter, as shown in FIG. 2, the fixed bed 20 is omitted, and half of the n internal circulation fluidized beds 10 are arranged symmetrically to simplify the apparatus.
The operation will be described together with the effect. The present invention has the following effects because it is configured as described above. In the prior art, the removal of soot in the exhaust gas of diesel engines uses a fine porous filter, and when complete combustion inside the soot filter is uncertain (when light-load operation of diesel engines is not possible). Sometimes) soot stays in the filter, necessitating measures to remove it, resulting in high cost. In the present invention, the internal circulating fluidized bed is formed by passing exhaust gas, soot combustion is ensured by catalytic combustion, and the ash content of soot combustion is:
Dust is collected by a fixed bed on the discharge side of the internal circulating fluidized bed.
Also, by using a NOx selective reduction catalyst for the fixed layer particles, dimethyl ether (DME),
Alternatively, urea water is sprayed in a mist to generate ammonia NH 3 by hydrolysis of urea, and NOx is selectively reduced and separated into N 2 and O 2 in the fixed bed. As described above, the present invention prevents the fluidized bed particles from being biased by using a small fluidized bed aggregate even when mounted on a vehicle or a ship, and further reduces the NO in the exhaust gas by combining with a fixed bed.
x and soot combustion ash.
【図面の簡単な説明】 【図１】排ガス処理装置のＸ−Ｘ′断面図 【図２】 〃 のＡ−Ａ′平面図 【図３】 〃 のＢ−Ｂ′平面図 【図４】 〃 のＹ−Ｙ′断面図 【図５】排ガスすす除去処理装置のＸ−Ｘ′断面図 【図６】 〃 のＡ−Ａ′平面図 【図７】 〃 のＢ−Ｂ′平面図 【図８】 〃 のＹ−Ｙ′断面図 【符号の説明】 １ 本体ケース １ａ 本体ケース側面傾斜部 ２ 排ガス流入口 ３ 排ガス流出口 ４ ＮＯｘ還元剤注入口 １０ 内部循環流動層 １１ 流動層粒子 １２ 流動層分散板 １３ 流動層上部傾斜板 ２０ 固定層 ２１ 固定層粒子 ２２ 固定層ガス流入側分散板 ２３ 固定層ガス流出側分散板[Brief description of the drawings] FIG. 1 is a cross-sectional view of an exhaust gas treatment device taken along line XX ′. FIG. 2 is a plan view of AA ′ of 〃. FIG. 3 is a BB ′ plan view of 〃. FIG. 4 is a sectional view taken along the line YY 'of FIG. FIG. 5 is a sectional view taken along the line XX ′ of the exhaust gas soot removal processing apparatus. FIG. 6 is an AA ′ plan view of 〃. FIG. 7 is a BB ′ plan view of 〃. FIG. 8 is a sectional view taken along line YY 'of FIG. [Explanation of symbols] 1 Body case 1a Body case side slope 2 Exhaust gas inlet 3 Exhaust gas outlet 4 NOx reducing agent inlet 10 Internal circulating fluidized bed 11 Fluidized bed particles 12 Fluidized bed dispersion plate 13 Fluidized bed upper inclined plate 20 fixed layers 21 Fixed layer particles 22 Fixed bed gas inflow side dispersion plate 23 Fixed layer gas outflow side dispersion plate
─────────────────────────────────────────────────────
【手続補正書】
【提出日】平成１４年２月１３日（２００２．２．１
３）
【手続補正１】
【補正対象書類名】明細書
【補正対象項目名】［０００５］ ［課題を解決するた
めの手段］
【補正方法】変更
【補正内容】
「固定層へのガス流入部より尿素の加水分解したアンモニア」
↓
「固定層へのガス流入部より、ジメチルエーテル（ＤＭＥ）または尿素の加水分
解したアンモニア」
【手続補正２】
【補正対象書類名】図面
【補正対象項目名】全図
【補正方法】変更
【補正内容】
【図１】
【図４】
【図５】
【図２】
【図３】
【図６】
【図７】
【図８】
─────────────────────────────────────────────────────
【手続補正書】
【提出日】平成１４年５月８日（２００２．５．８）
【手続補正１】
【補正対象書類名】明細書
【補正対象項目名】０００５
【補正方法】変更
【補正内容】
【０００５】
【課題を解決するための手段】上記目的を達成するため
に、本発明は次記のようになるものである。すすの流動
層による触媒燃焼において、ディーゼルエンジンの排ガ
ス温度４００℃程度で完全燃焼を確実にするため、流動
層は内部循環流動層を形成し、燃焼灰分は内部循環流動
層の排出側に固定層を設ける。その固定層の粒子媒体
は、選択還元脱硝剤（例えば、ゼオライトに銅イオンを
担持した触媒）として、固定層へのガス流入部よりジメ
チルエーテル（ＤＭＥ）または、尿素の加水分解したア
ンモニア（ＮＨ３）を供給し、排ガス中の（ＮＯｘ）を
Ｎ２、Ｏ２に還元する。また、すすの燃焼灰、及びＮＯ
ｘにおいて、小容量機関の場合は固定層を省略し、内部
循環流動層のみとして装置の簡素化もし得るものとし、
車輌、船舶に搭載するとき、内部循環流動層を、小区分
に分割して、車輌、船舶のヨコ振れ、タテ振れ、及び急
制動時の流動層粒子の偏りを防止し、排ガスの流動層内
での吹き抜けを生じないようにしている。────────────────────────────────────────────────── ───
[Procedure amendment] [Date of submission] February 13, 2002 (2002.2.1
3) [Procedure amendment 1] [Document name to be amended] Description [Item name to be amended] [0005] [Means for solving the problem] [Correction method] Change [Content of amendment] "Gas inflow section to fixed bed" Urea hydrolyzed ammonia "↓" Dimethyl ether (DME) or urea hydrolyzed ammonia from gas inlet to fixed bed "[Procedure amendment 2] [Document name to be amended] Drawing [Name of amended item] Figure [Correction method] Change [Correction contents] [Figure 1] FIG. 4 FIG. 5 FIG. 2 FIG. 3 FIG. 6 FIG. 7 FIG. 8 ────────────────────────────────────────────────── ───
[Procedure amendment] [Submission date] May 8, 2002 (2002.5.8) [Procedure amendment 1] [Document name to be amended] Description [Item name to be amended] 0005 [Correction method] Change [Amendment] SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is as follows. In catalytic combustion using a fluidized bed of soot, the fluidized bed forms an internal circulating fluidized bed to ensure complete combustion at the exhaust gas temperature of the diesel engine at around 400 ° C, and the combustion ash is fixed to the exhaust side of the internal circulating fluidized bed. Is provided. The particle medium of the fixed bed is a selective reduction denitration agent (for example, a catalyst in which copper ions are supported on zeolite), dimethyl ether (DME) or urea-hydrolyzed ammonia (NH 3 ) from a gas inflow section into the fixed bed. To reduce (NOx) in the exhaust gas to N 2 and O 2 . Also, soot combustion ash and NO
In x, in the case of a small capacity engine, the fixed bed shall be omitted, and the apparatus may be simplified by using only the internal circulating fluidized bed,
When mounted on a vehicle or ship, the internal circulating fluidized bed is divided into small sections to prevent horizontal deflection of the vehicle or ship, vertical deflection, and uneven distribution of the fluidized bed particles during sudden braking, and to prevent the exhaust gas from flowing into the fluidized bed. So that there is no stairwell.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｆ０１Ｎ 3/02 ３２１ Ｆ０１Ｎ 3/08 Ｂ 3/28 Ｄ 3/08 Ｍ Ｑ 3/28 Ｂ０１Ｄ 53/34 １２９Ｂ ＺＡＢ 53/36 １０３Ｃ １０１Ｂ Ｆターム(参考） 3G090 AA03 AA06 BA01 CA01 EA02 3G091 AA02 AA04 AA18 AA28 AB05 AB13 BA00 BA14 BA31 BA38 CA17 CA22 CA27 CB02 CB03 DA01 DA02 DA10 DB06 DB10 EA32 FB10 FB15 FB16 FC02 GA01 GB01W GB09X HA16 4D002 AA12 AC10 BA06 BA14 CA07 CA09 DA33 DA45 DA57 EA02 4D048 AA06 AA14 AB01 AB02 AC03 AC04 AC09 BA11X BA35X BA36X BA38X BB01 CB03 4D058 JA60 JB02 SA08 TA06 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) F01N 3/02 321 F01N 3/08 B 3/28 D 3/08 M Q 3/28 B01D 53/34 129B ZAB 53/36 103C 101B F-term (reference) 3G090 AA03 AA06 BA01 CA01 EA02 3G091 AA02 AA04 AA18 AA28 AB05 AB13 BA00 BA14 BA31 BA38 CA17 CA22 CA27 CB02 CB03 DA01 DA02 DA10 DB06 DB10 EA32 FB10 GB01 AFC16 GB01 FC16 BA06 BA14 CA07 CA09 DA33 DA45 DA57 EA02 4D048 AA06 AA14 AB01 AB02 AC03 AC04 AC09 BA11X BA35X BA36X BA38X BB01 CB03 4D058 JA60 JB02 SA08 TA06
Claims (1)
いて、図１のケース１に内部循環流動層１０及び固定層
２０を収納し、内部循環流動層１０は、ｎ個に分割し、
区分された１辺の長さ（ａ，ｂ）は、流動層粒子１１の
静子層高ｈの３倍以内として、車輌、船舶などに搭載さ
れたとき、横振れ、縦振れ、及び急制動により流動層粒
子１１の偏在による、ガスの吹き抜け防止をはかり、流
動層上部傾斜板１３に沿ってガス流路を形成し、そのガ
スの流れに誘導されて、流動層粒子１１が移動し、ケー
ス１の側面に至ると、ケース側面傾斜部１ａに沿って降
下することにより、流動層粒子１１に循環性を付加させ
て、流動層粒子１１と排ガス中のすすとの接触による触
媒燃焼を促進させる。内部循環流動層を流出した排ガス
は固定層２０を通過し、ガス処理装置より排出される
が、固定層粒子２１はＮＯｘ選択還元触媒とし、還元剤
にジメチルエーテル（ＤＭＥ）、または尿素水を霧状化
して還元剤注入口４より注入し、ＮＯｘを選択還元脱硝
をし、また、すす燃焼による灰分は固定層２０内に捕集
する。また、ＮＯｘ除去、及びすすの燃焼灰の除去を必
要としないときは、図２に示すように固定層２０を省略
する。以上、内部循環流動層と固定層の組合せによる、
すすの触媒燃焼と、ＮＯｘの除去、及びすす燃焼灰の集
塵に関する機能を有するすす・ＮＯｘ除去装置。Claims: A device for removing soot and NOx in exhaust gas of an internal combustion / external combustion engine, wherein an internal circulating fluidized bed 10 and a fixed bed 20 are housed in a case 1 of FIG. Divided into
The length (a, b) of one of the divided sides is within three times the height h of the static layer of the fluidized-bed particles 11, and when mounted on a vehicle, a ship, or the like, a horizontal vibration, a vertical vibration, and a sudden braking cause. The gas is prevented from flowing through due to the uneven distribution of the fluidized bed particles 11, a gas flow path is formed along the upper inclined plate 13 of the fluidized bed, and the fluidized bed particles 11 are guided by the flow of the gas to move the case 1. When the fluidized bed particle 11 descends along the case side inclined portion 1a, the fluidized bed particle 11 is provided with circulating properties to promote catalytic combustion by contact between the fluidized bed particle 11 and soot in exhaust gas. The exhaust gas flowing out of the internal circulating fluidized bed passes through the fixed bed 20 and is discharged from the gas treatment apparatus. The fixed bed particles 21 are used as a NOx selective reduction catalyst, and dimethyl ether (DME) or urea water is atomized as a reducing agent. And NOx is selectively reduced and denitrated, and ash due to soot combustion is collected in the fixed layer 20. When it is not necessary to remove NOx and soot combustion ash, the fixed layer 20 is omitted as shown in FIG. As described above, by the combination of the internal circulating fluidized bed and the fixed bed,
A soot / NOx removing device having functions related to catalytic combustion of soot, removal of NOx, and dust collection of soot combustion ash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001402340A JP3849000B2 (en) | 2001-11-30 | 2001-11-30 | Exhaust gas purification equipment for internal combustion and external combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001402340A JP3849000B2 (en) | 2001-11-30 | 2001-11-30 | Exhaust gas purification equipment for internal combustion and external combustion engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003172132A true JP2003172132A (en) | 2003-06-20 |
| JP3849000B2 JP3849000B2 (en) | 2006-11-22 |
Family
ID=19190137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001402340A Expired - Fee Related JP3849000B2 (en) | 2001-11-30 | 2001-11-30 | Exhaust gas purification equipment for internal combustion and external combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3849000B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013208958A (en) * | 2012-03-30 | 2013-10-10 | National Maritime Research Institute | Ship fluidized bed device and ship mounted with the same |
| CN105617947A (en) * | 2014-10-27 | 2016-06-01 | 中国石油化工股份有限公司 | Fixed bed-fluidized bed reactor and application thereof |
| CN109821379A (en) * | 2019-04-04 | 2019-05-31 | 南京国电环保科技有限公司 | For improving the ammonia-gas spraying device of ammonia distribution consistency degree |
-
2001
- 2001-11-30 JP JP2001402340A patent/JP3849000B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013208958A (en) * | 2012-03-30 | 2013-10-10 | National Maritime Research Institute | Ship fluidized bed device and ship mounted with the same |
| CN105617947A (en) * | 2014-10-27 | 2016-06-01 | 中国石油化工股份有限公司 | Fixed bed-fluidized bed reactor and application thereof |
| CN105617947B (en) * | 2014-10-27 | 2018-09-28 | 中国石油化工股份有限公司 | A kind of fixed bed-fluidized bed reactor and its application |
| CN109821379A (en) * | 2019-04-04 | 2019-05-31 | 南京国电环保科技有限公司 | For improving the ammonia-gas spraying device of ammonia distribution consistency degree |
| CN109821379B (en) * | 2019-04-04 | 2021-11-19 | 南京国电环保科技有限公司 | Ammonia spraying device for improving ammonia distribution uniformity |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3849000B2 (en) | 2006-11-22 |
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