JP2002243132A - Method for treating ammonia-containing gas and coal gasifying composite power plant - Google Patents
Method for treating ammonia-containing gas and coal gasifying composite power plantInfo
- Publication number
- JP2002243132A JP2002243132A JP2001045956A JP2001045956A JP2002243132A JP 2002243132 A JP2002243132 A JP 2002243132A JP 2001045956 A JP2001045956 A JP 2001045956A JP 2001045956 A JP2001045956 A JP 2001045956A JP 2002243132 A JP2002243132 A JP 2002243132A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- ammonia
- combustion
- containing gas
- combustion furnace
- 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
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、石炭に代表される
微粉固体炭素質原料をガス化するプラントに係り、特に
アンモニア含有ガスの処理方法及び石炭ガス化複合発電
プラントに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant for gasifying fine solid carbonaceous raw materials such as coal, and more particularly to a method for treating ammonia-containing gas and a combined gasification combined cycle power plant.
【０００２】[0002]
【従来の技術】従来より石炭等の固体炭素質原料をガス
化するガス化炉には、固定層、流動層及び気流層等の各
方式が提案されている。これらの方式の中で気流層は原
料を、微粉にして酸素及び空気等の酸化剤とともに原料
灰の融点以上の温度（約1300℃〜1600℃）に高めた炉内
に供給してガス化させるため、他の方式に比較してガス
化効率が高く、かつ適用炭種が広く、また環境適合性に
優れている等の特徴を有しており、合成ガス、複合発電
及び燃料電池等の燃料及び原料製造に適しているため、
国内外で開発が進められている。石炭中には硫黄（S）
が含まれており、この硫黄分はガス化によって硫化水素
（H2S）と硫化カルボニル（COS）とに変換され、その濃
度は原料中のS含有量に支配されるが一般には数100ppm
〜数1000ppmである。また、石炭中には窒素(N)が含まれ
ており、この窒素の一部はガス化によってアンモニア(N
H3)あるいはシアン化水素（HCN）に変換され、その濃度
は原料中のN含有量で支配されるが一般には数10ppmであ
る。2. Description of the Related Art Conventionally, a gasification furnace for gasifying a solid carbonaceous raw material such as coal has been proposed in various systems such as a fixed bed, a fluidized bed and an airflow bed. In these systems, the gas flow layer feeds the raw material into fine powder and gasifies it together with oxidizing agents such as oxygen and air in a furnace that is heated to a temperature higher than the melting point of the raw ash (about 1300 ° C to 1600 ° C). Therefore, compared to other systems, it has features such as higher gasification efficiency, wider range of applicable coal types, and superior environmental compatibility. And because it is suitable for raw material production,
It is being developed in Japan and overseas. Sulfur (S) in coal
The sulfur content is converted into hydrogen sulfide (H 2 S) and carbonyl sulfide (COS) by gasification, and its concentration is controlled by the S content in the raw material, but is generally several hundred ppm.
~ Several thousand ppm. In addition, coal contains nitrogen (N), and a part of this nitrogen is converted to ammonia (N
H 3 ) or hydrogen cyanide (HCN), the concentration of which is governed by the N content in the raw material, but is generally several tens of ppm.
【０００３】従来の石炭ガス化複合発電プラントの一例
を図10に示す。微粉炭1に代表される炭素質原料は酸素2
等の酸化剤とともにガス化炉10に入り、CO及びH2に富む
生成ガスに変換され、ライン12を経て熱回収ボイラ20を
通り脱塵装置30に至る。また、生成ガスは、ライン31を
経て水洗浄装置50で冷却されて洗浄され、次に脱H2S装
置70内で生成ガス中のH2Sを除去され、さらに水洗浄装
置50の上流に設置された熱交換器40で加熱された後に、
ガスタービン130を経て廃熱回収ボイラ（HRSG）140に至
る。脱H2S装置70で分離した高濃度H2Sガスは、ライン72
を経てH2S燃焼炉80に至り、ここで空気82とともに燃焼
され、H2S燃焼炉80で発生した高濃度SO2ガスは、ライン
81を経て脱SO2装置（脱硫装置）90に至り、ここで石灰
石スラリによって最終的には石膏（CaSO4）となってラ
イン92より系外に排出される。なお、ガス化炉10、熱回
収ボイラ20及び排熱回収ボイラ140等で発生した蒸気
は、図示しない蒸気タービンに送給され、ガスタービン
130とともに図示しない発電設備に接続されて複合発電
し、排気101は、ライン141を経て煙突100より排出され
る。FIG. 10 shows an example of a conventional integrated coal gasification combined cycle power plant. The carbonaceous raw material represented by pulverized coal 1 is oxygen 2
The gas enters the gasification furnace 10 together with the oxidizing agent and the like, is converted into a product gas rich in CO and H 2 , passes through the heat recovery boiler 20 via the line 12, and reaches the dust removal device 30. Further, the produced gas is cooled and washed by the water washing device 50 via the line 31, then H 2 S in the produced gas is removed in the H 2 S removing device 70, and further upstream of the water washing device 50. After being heated by the installed heat exchanger 40,
The gas reaches the waste heat recovery boiler (HRSG) 140 via the gas turbine 130. High concentration H 2 S gas separated in de H 2 S device 70, line 72
Through the H 2 S combustion furnace 80, where it is burned with the air 82, and the high-concentration SO 2 gas generated in the H 2 S combustion furnace 80
Reaches the 81 de-SO 2 unit via a (desulfurization) 90, where finally the limestone slurry is discharged from the system through a line 92 becomes gypsum (CaSO 4). The steam generated in the gasifier 10, the heat recovery boiler 20, the exhaust heat recovery boiler 140, and the like is supplied to a steam turbine (not shown),
Along with 130, it is connected to a power generation facility (not shown) to perform combined power generation, and exhaust 101 is discharged from chimney 100 via line 141.
【０００４】なおガス化炉10以降の機器、例えばガスタ
ービン130の失火等の異常時、あるいはガス化初期にお
いて生成ガスの発熱量が低い時には、ガスタービン130
に通気する以前に生成したガスを焼却処分する必要があ
る。また、湿式H2S吸収装置（脱H2S装置）70の吸収液は
酸素によって酸化して劣化する。したがって、ガスター
ビン130の異常時又は起動時等の酸素を含むガスを焼却
処分するため、例えば水洗浄装置（冷却装置）50の排出
するライン51より生成ガスを弁53を経て生成ガス焼却炉
120に送給するライン52が設置されている。なお、図10
では水洗浄装置50出口のライン51を生成ガス焼却炉120
に接続しているが、生成ガス焼却炉120に接続するライ
ンとして、熱回収ボイラ20を経てガス温度が比較的低く
なったライン21又は脱塵装置30出口のライン31でもよ
い。生成ガス焼却炉120では燃料122と空気123とにより
異常時には即座に生成ガスを処分できるように常に燃焼
させている。[0004] When an abnormality such as a misfire of the gasification furnace 10 or later, such as the gas turbine 130, or when the calorific value of the generated gas is low at the beginning of gasification, the gas turbine 130
It is necessary to incinerate the gas generated before venting the gas. Further, the absorbing solution of the wet H 2 S absorbing device (de-H 2 S removing device) 70 is oxidized and deteriorated by oxygen. Therefore, in order to incinerate the gas containing oxygen when the gas turbine 130 is abnormal or when it is started, for example, the generated gas is discharged from a line 51 discharged from a water washing device (cooling device) 50 through a valve 53 to generate a gas.
A line 52 for feeding to 120 is provided. Note that FIG.
Then, the line 51 at the outlet of the water washing device 50 is connected to the generated gas incinerator 120.
However, the line connected to the generated gas incinerator 120 may be a line 21 having a relatively low gas temperature via the heat recovery boiler 20 or a line 31 at the outlet of the dust removal device 30. In the generated gas incinerator 120, the fuel 122 and the air 123 are constantly burning so that the generated gas can be immediately disposed of in the event of an abnormality.
【０００５】また、生成ガス中のH2S等の硫黄化合物を
除去する方法として、乾式法と湿式法とがある。乾式法
はFe、Ni等の金属酸化物にH2Sを反応させた後、酸素含
有ガスでH2Sを酸化させるとともに金属酸化物として再
生する方法であるが、吸収剤が粉化する欠点があり実用
化に至っていない。一方、湿式法は、石油化学プロセス
で開発したもので、アルカノールアミン吸収液等を用い
てH2Sを吸収させた後、この吸収液を別の塔に導き減圧
して加熱しH2Sを脱離させる方法であり、乾式法に比較
して信頼性が高い。この湿式脱硫法では100℃でH2Sを吸
収し除去するもので、数100℃の高温ガスを直接流入さ
せると、吸収液が熱により分解して劣化が起きるため、
冷却装置をその前に設置し、高温ガスを冷却するように
なっている。Further, there are a dry method and a wet method as a method for removing a sulfur compound such as H 2 S in a produced gas. After dry process, which was reacted with H 2 S Fe, the metal oxides such as Ni, is a method of reproducing a metal oxide with oxidizing the H 2 S in an oxygen-containing gas, the absorption agent is powdered drawbacks And has not yet been put to practical use. On the other hand, the wet method was developed in a petrochemical process, and after absorbing H 2 S using an alkanolamine absorbing solution or the like, the absorbing solution was led to another column and heated under reduced pressure to reduce H 2 S. This is a method of desorption and has higher reliability than the dry method. In this wet desulfurization method, H 2 S is absorbed and removed at 100 ° C. If a high-temperature gas of several 100 ° C is directly introduced, the absorbing liquid is decomposed by heat and deteriorates.
A cooling device is installed in front of the cooling device to cool the hot gas.
【０００６】石炭の中には硫黄（S）の他に微量ではあ
るが、塩素（Cl）、フッ素（F）等のハロゲンや亜鉛（Z
n）、銅（Cu）等の金属も含まれており、石炭のガス化
とともにガスになり、冷却装置でこれらのガスが濃縮さ
れるため、一部のガスは系外に抜き出し水処理される。
前記のように、石炭中には窒素（N）も含まれており、
この窒素の一部はガス化によってアンモニア（NH3）あ
るいはシアン化水素（HCN）に変換され、その濃度は原
料中のN含有量で支配されるが一般には合計で数10ppmで
ある。このNH3及びHCNも冷却装置で溶解し吸収されて濃
縮され、加圧状態より常圧に減圧して抜き出されるた
め、溶解したNH3及びHCNが排出水から脱気する。湿式の
ガス精製を行わないガス化プラントにおける生成ガス中
には前記のようにNH3及びHCNが含有し、燃焼させると所
謂Fuel NOxとなり、環境保全上好ましくない。[0006] In coal, in addition to sulfur (S), there are trace amounts of halogens such as chlorine (Cl) and fluorine (F) and zinc (Z
n), also contains metals such as copper (Cu), which become gas with the gasification of coal, and these gases are concentrated in the cooling device, so some gas is extracted out of the system and treated with water .
As mentioned above, coal also contains nitrogen (N),
A part of this nitrogen is converted into ammonia (NH 3 ) or hydrogen cyanide (HCN) by gasification, and its concentration is controlled by the N content in the raw material, but is generally several tens ppm in total. The NH 3 and HCN are also dissolved, absorbed and concentrated by the cooling device, and are extracted from the pressurized state by reducing the pressure to normal pressure, so that the dissolved NH 3 and HCN are degassed from the discharged water. As described above, NH 3 and HCN are contained in the product gas in a gasification plant that does not perform wet gas purification, and when it is burned, it becomes so-called Fuel NOx, which is not preferable in terms of environmental conservation.
【０００７】例えば、特開昭61-266491号公報にはN含有
量の多い石炭を酸素（02）量の多いバーナに供給して高
温雰囲気下でガス化させる方法が開示されているが、こ
れはガス化に使用する原料を制限することになり好まし
い方法ではない。また他に高圧の石炭ガス生成ラインに
触媒もしくは02を注入してこれらのガスをN2に還元する
技術も開示されているが、高価な触媒が必要であり、ま
た触媒はS化合物によって性能が劣化するため、現実的
ではない。さらに特開平1-75586号公報に記載された方
法では、生成ガスを一部抜き取り湿式吸収装置に導いて
NH3を分離し、生成ガスを燃焼させて発生したNOxの還元
剤として使用する方法が開示されているが、本事例に記
載された湿式吸収装置に用いる吸収液としてメタノール
及びグリコールエーテルが記載されており、これらの吸
収液はNH3の他にH2Sも吸収することが記載されており、
NH3だけを脱気させることは容易ではない。For example, Japanese Patent Application Laid-Open No. Sho 61-266491 discloses a method in which coal containing a large amount of N is supplied to a burner containing a large amount of oxygen (O 2 ) and gasified in a high-temperature atmosphere. This limits the raw materials used for gasification and is not a preferred method. Performance also has been also disclosed techniques for reducing these gases to N 2 by injecting a catalyst or 0 2 in the other high pressure coal gas generation line, it requires an expensive catalyst and catalyst by S compound Is not realistic because it deteriorates. Furthermore, in the method described in JP-A-1-75586, a part of the generated gas is withdrawn and guided to a wet-type absorption device.
Although a method of separating NH 3 and using it as a reducing agent for NOx generated by burning generated gas is disclosed, methanol and glycol ether are described as absorption liquids used in the wet absorption device described in this example. It is described that these absorbing solutions also absorb H 2 S in addition to NH 3 ,
It is not easy to degas NH 3 alone.
【０００８】また、前記の事例は全て脱硫方法として乾
式の方法を用いるガス化プラントを対象としており、本
発明の湿式でH2Sを除去するガス化プラントを対象とし
てはいない。結局、従来の開示された事例の中では、生
成ガス中のH2Sを湿式H2S吸収装置で吸収除去するガス化
プラントにおいて生成ガスに含まれるNH3及びHCN含有ガ
スの処理に関して、何ら対策がなされていなかった。Further, all the above-mentioned cases are directed to a gasification plant using a dry method as a desulfurization method, but not to a gasification plant of the present invention for removing H 2 S by a wet method. After all, in the conventional disclosed case, in relation to the processing of the NH 3 and HCN-containing gas contains a H 2 S in the product gas to the product gas in a gasification plant for absorbing and removing by wet H 2 S absorber, any No measures were taken.
【０００９】[0009]
【発明が解決しようとする課題】従来のアンモニア含有
ガスの処理方法にあっては、水洗浄装置より抜き出され
る排出水から脱気するNH3及びHCN含有ガス（アンモニア
含有ガス）の処理が考慮されていない問題点があった。In the conventional method for treating ammonia-containing gas, the treatment of NH 3 and HCN-containing gas (ammonia-containing gas) degassed from the effluent discharged from the water washing device is considered. There were issues that were not.
【００１０】本発明の課題は、脱気したNH3及びHCN含有
ガスを無害に燃焼処分することのできるアンモニア含有
ガスの処理方法及び該方法に用いる石炭ガス化複合発電
プラントを提供することにある。An object of the present invention is to provide a method for treating an ammonia-containing gas capable of harmlessly burning degassed NH 3 and HCN-containing gas and a combined gasification combined cycle power plant used in the method. .
【００１１】[0011]
【課題を解決するための手段】前記の課題を達成するた
め、本発明に係るアンモニア含有ガスの処理方法は、石
炭を加圧下のガス化炉で生成ガスに変換し、生成ガスを
脱塵し熱交換器を経由したのち水洗浄装置で冷却して洗
浄し、処分を要する生成ガスを分岐して生成ガス焼却炉
で焼却し、生成ガス中のH2Sを脱H2S装置で除去したのち
H2S燃焼炉で燃焼し、水洗浄装置の排出水より減圧時に
脱気したアンモニア含有ガスは、補助ボイラ、H2S燃焼
炉及び生成ガス焼却炉よりなる複数の分離ガス燃焼手段
のうちのいずれか一つの分離ガス燃焼手段で燃焼処理さ
れる構成とする。In order to achieve the above-mentioned object, a method for treating an ammonia-containing gas according to the present invention converts coal into a product gas in a gasifier under pressure, and removes the product gas from the dust. After passing through the heat exchanger, it was cooled and washed by a water washing device, the generated gas that needed to be disposed was branched and incinerated in a generated gas incinerator, and H 2 S in the generated gas was removed by a H 2 S removal device. Later
It burned in H 2 S combustion furnace, degassed ammonia-containing gas at reduced pressure from the discharge water of the water cleaning apparatus, auxiliary boiler, of the plurality of separating gas combustion unit consisting of H 2 S combustion furnace and generating gas incinerator The combustion processing is performed by any one of the separated gas combustion means.
【００１２】そしてアンモニア含有ガスは、補助ボイラ
と、生成ガス焼却炉及びH2S燃焼炉を兼ねた一つの燃焼
炉とのいずれか一つの分離ガス燃焼手段で燃焼処理され
る構成、又は一つの分離ガス燃焼手段で燃料を燃焼させ
て発生した火炎の下流にアンモニア含有ガスを注入して
燃焼処理される構成、さらに一つの分離ガス燃焼手段で
燃料を空気比1以下で燃焼させて発生した火炎の下流に
アンモニア含有ガスを注入し、かつ該アンモニア含有ガ
スの注入による燃焼の下流に空気を注入して燃焼処理さ
れる構成でもよい。The ammonia-containing gas is combusted by one of the auxiliary gas boiler and one of the separated gas combustion means of the product gas incinerator and one of the combustion furnaces also serving as the H 2 S combustion furnace, or A configuration in which an ammonia-containing gas is injected downstream of a flame generated by burning fuel with separated gas combustion means and combustion is performed, and a flame generated by burning fuel at an air ratio of 1 or less with one separated gas combustion means The combustion treatment may be performed by injecting an ammonia-containing gas downstream of the fuel cell and injecting air downstream of the combustion by the injection of the ammonia-containing gas.
【００１３】そして石炭ガス化複合発電プラントにおい
ては、石炭を加圧下でガス化して生成ガスに変換するガ
ス化炉と、生成ガスを脱塵し熱交換器を経由したのち冷
却し洗浄する水洗浄装置と、処分を要する生成ガスを分
岐して焼却する生成ガス焼却炉と、生成ガス中のH2Sを
脱H2S装置で除去したのち燃焼するH2S燃焼炉と、水洗浄
装置の排出水より減圧時に脱気したアンモニア含有ガス
を燃焼処理する補助ボイラ又はH2S燃焼炉及び前記生成
ガス焼却炉を兼ねた燃焼炉のうちのいずれか一つの分離
ガス燃焼手段と、H2S燃焼炉又は一つの燃焼炉へ接続す
る脱硫装置と、脱H2S装置で精製されかつ熱交換器で加
熱された生成ガスが送給されるガスタービンと、ガスタ
ービン及び蒸気タービンを含む発電設備とを備えてなる
構成とする。In the integrated coal gasification combined cycle power plant, a gasification furnace for gasifying coal under pressure to convert it into product gas, and a water washing device for removing the generated gas from dust, passing through a heat exchanger, and cooling and washing the gas. apparatus and a product gas incinerator for incineration is branched product gas requiring disposal, and H 2 S combustion furnace for burning after the H 2 S in the product gas is removed in de H 2 S device, the water cleaning devices and one separation gas combustion means any of the auxiliary boiler or H 2 S combustion furnace and combustion furnace which also serves as the product gas incinerator for combustion treatment of ammonia-containing gas was degassed at reduced pressure from the discharge water, H 2 S A desulfurization unit connected to a combustion furnace or a single combustion furnace, a gas turbine supplied with product gas purified by a de-H 2 S unit and heated by a heat exchanger, and power generation equipment including a gas turbine and a steam turbine And a configuration including:
【００１４】[0014]
【発明の実施の形態】本発明の一実施の形態を図1を参
照しながら説明する。図1に示すように、石炭を加圧下
のガス化炉10で生成ガスに変換する工程と、生成ガスを
脱塵し熱交換器40を経由したのち水洗浄装置50で冷却し
て洗浄する工程と、異常時等の処分を要する生成ガスを
分岐して生成ガス焼却炉120で焼却する工程と、生成ガ
ス中のH2Sを脱H2S装置70で除去したのちH2S燃焼炉80で
燃焼する工程と、水洗浄装置50の排出水より減圧時に脱
気したアンモニア含有ガスは、補助ボイラ、H2S燃焼炉8
0及び生成ガス焼却炉120よりなる複数の分離ガス燃焼手
段のうちのいずれか一つの分離ガス燃焼手段で燃焼処理
される工程とを含む構成である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIG. As shown in FIG. 1, a step of converting coal into a product gas in a gasifier 10 under pressure, and a step of removing the generated gas through a heat exchanger 40 and then cooling and cleaning the same with a water cleaning device 50. When, step a, H 2 S combustion furnace 80 after removing the H 2 S in the product gas in de H 2 S device 70 for burning in the generated gas incinerator 120 branches the product gas requiring disposal of abnormality such as And the ammonia-containing gas degassed at the time of decompression from the discharge water of the water washing device 50 is supplied to the auxiliary boiler and the H 2 S combustion furnace 8.
And a step of performing a combustion treatment by any one of a plurality of separated gas combustion means including the separated gas incinerator 120 and the generated gas incinerator 120.
【００１５】本発明の一実施の形態は、図10に示す従来
技術と比較するとブロータンク110で発生したガスを生
成ガス焼却炉120に導いて焼却処分するものであり、プ
ラントの異常時に生成ガスを焼却処分する生成ガス焼却
炉120と、さらに脱H2S装置70で脱離させたH2Sを焼却す
るH2S燃焼炉80とが設置されており、これらの分離ガス
燃焼手段でNH3（アンモニア）及びHCN（シアン化水素）
含有ガス（アンモニア含有ガス）を燃焼処分させるもの
である。In one embodiment of the present invention, as compared with the prior art shown in FIG. 10, the gas generated in the blow tank 110 is led to the generated gas incinerator 120 for incineration. the generation and gas incinerator 120 to incineration, are an H 2 S combustion furnace 80 for burning the H 2 S was desorbed further de H 2 S 70 is installation, NH with these separation gas combustion unit 3 (ammonia) and HCN (hydrogen cyanide)
The contained gas (ammonia-containing gas) is burned and disposed.
【００１６】図2に生成ガス焼却炉120におけるNH3及びH
CN含有ガスの燃焼処分方法を示す。燃焼用の空気ライン
123にNH3及びHCN含有ガスを、ライン112を経て混入させ
て生成ガス焼却炉120で燃焼する場合と、燃料122の燃焼
によって形成された火炎200の下流にNH3及びHCN含有ガ
スを注入して還元炎201を形成させる場合との2種類を示
している。なお、NH3及びHCN含有ガスを空気ライン123
に注入しなくても、例えば空気ライン123に供給する空
気送風機の吸入側に冷却装置（水洗浄装置）50のブロー
タンク110でNH3及びHCN含有ガスを空気とともに吸入さ
せても同様の効果が得られる。このように燃焼用の空気
ライン123にNH3及びHCN含有ガスを混入させて燃焼する
と、NH3及びHCN含有ガスから所謂Fuel NOxが発生す
る。本発明のうちでNH3及びHCN含有ガスを燃焼用の空気
に混入させないで、つまりNH3を含まない燃料52を燃焼
させて発生した火炎200の下流にNH3及びHCN含有ガスを
注入し、還元炎201を形成させる方法では、火炎200で発
生したNOxとNH3及びHCN含有ガスとを反応させることが
できるため、ライン121より排出されるNOx排出量を従来
よりも抑制して燃焼処理できるものである。FIG. 2 shows NH 3 and H in the generated gas incinerator 120.
The method of burning and disposal of CN-containing gas is shown. Air line for combustion
The NH 3 and HCN-containing gas is injected into the 123 by mixing the NH 3 and HCN-containing gas through the line 112 and burning in the generated gas incinerator 120, and the NH 3 and HCN-containing gas is injected downstream of the flame 200 formed by the combustion of the fuel 122. And the case where the reducing flame 201 is formed. In addition, NH 3 and HCN-containing gas were
Even if the gas containing NH 3 and HCN is sucked together with air into the blow tank 110 of the cooling device (water washing device) 50 on the suction side of the air blower that supplies the air to the air line 123, the same effect can be obtained. can get. When NH 3 and HCN-containing gas are mixed and burned in the combustion air line 123 in this way, so-called Fuel NOx is generated from NH 3 and HCN-containing gas. Not be mixed with air for combustion of NH 3 and HCN-containing gas of the present invention, the NH 3 and HCN-containing gas is injected that is downstream of the flame 200 generated by the fuel 52 is burned free of NH 3, In the method of forming the reducing flame 201, the NOx generated in the flame 200 can react with NH 3 and the HCN-containing gas, so that the NOx emission amount discharged from the line 121 can be suppressed and the combustion treatment can be reduced. Things.
【００１７】本発明の他の実施の形態を図3に示す。NH3
を含有しない燃料を空気比1以下で燃焼させて火炎300を
形成させ、火炎300の下流にNH3及びHCN含有ガスを注入
し、かつNH3及びHCN含有ガスを注入した燃焼301の下流
に空気をライン124より注入して完全燃焼302するもので
あり、火炎300では空気比が1以上となる図２の火炎200
と比較してNOxの発生量が少なく、さらにNH3及びHCN含
有ガスでNOxを還元することができるので、さらに出口
のライン121におけるNOxの発生を図2より抑制すること
ができる。FIG. 3 shows another embodiment of the present invention. NH 3
Is burned at an air ratio of 1 or less to form a flame 300, NH 3 and HCN-containing gas are injected downstream of the flame 300, and air downstream of the combustion 301 injected with NH 3 and HCN-containing gas. From the line 124 to complete combustion 302, and the flame 300 in FIG.
Since the amount of generated NOx is smaller than that of NOx and NOx can be reduced with the NH 3 and HCN-containing gas, the generation of NOx in the outlet line 121 can be further suppressed as shown in FIG.
【００１８】本発明の他の実施の形態を図4に示す。NH3
を含まない燃料52によって形成された火炎200の周り還
元炎201を形成させ、さらにこれらの火炎の下流に空気
をライン124より注入して完全燃焼202させるものであ
る。この他の実施の形態においても、図3と同様にライ
ン121におけるNOxの発生を抑制しつつ、NH3及びHCN含有
ガスを処理できる。FIG. 4 shows another embodiment of the present invention. NH 3
A reducing flame 201 is formed around a flame 200 formed by a fuel 52 containing no, and air is injected downstream of these flames from a line 124 to complete combustion 202. In this other embodiment, NH 3 and HCN-containing gas can be treated while suppressing generation of NOx in the line 121 as in FIG.
【００１９】本発明の実施の形態の作用を説明する。石
炭ガス化プラントではプラント起動用蒸気発生源として
補助ボイラが通常設置されている。また、プラントの異
常時に生成ガスを焼却する生成ガス焼却炉、さらに脱H2
S装置で脱離させたH2Sを焼却するH2S燃焼炉が設置され
ている。本発明はこれらの燃焼炉においてNH3及びHCN含
有ガスを燃焼処分させるものである。すなわちNH3及びH
CN含有ガスを燃焼するとNOxが発生する。ところがこれ
らのガスはNOxと反応してNOxをN2に還元する作用もす
る。本発明では前記各分離ガス燃焼手段の燃焼炉におい
て、形成した火炎の下流にNH3及びHCN含有ガスを注入す
ることによって火炎で発生したNOxと反応させる。その
結果、NOxはNH3及びHCN含有ガスで還元されるため、燃
焼炉で発生するNOxの発生量を抑制して燃焼処理できる
のである。さらに燃焼炉において空気比1以下で燃焼さ
せた後にNH3及びHCN含有ガスを注入し、さらにその下流
で空気を注入して完全燃焼させることにより、燃焼炉で
発生するNOxは空気比が1以下であるため、NOxの発生量
が少なく、さらにNH3及びHCN含有ガスでNOxを還元する
ことができるため、さらにNOxの発生を抑制することが
できる。The operation of the embodiment of the present invention will be described. In a coal gasification plant, an auxiliary boiler is usually installed as a steam generation source for starting the plant. Furthermore, product gas incinerator for incinerating the produced gas during plant upset, further de H 2
H 2 S combustion furnace for burning the H 2 S that was detached with S device is installed. The present invention is to combust NH 3 and HCN-containing gas in these combustion furnaces. That is, NH 3 and H
When the CN-containing gas is burned, NOx is generated. However these gases also act to reduce react with NOx of NOx to N 2. In the present invention, in the combustion furnace of each of the separated gas combustion means, NH 3 and HCN-containing gas are injected downstream of the formed flame to react with NOx generated in the flame. As a result, NOx is to be reduced by the NH 3 and HCN-containing gas, it can be combusted by suppressing the generation amount of NOx generated in the combustion furnace. In addition, NH 3 and HCN-containing gas are injected after combustion at an air ratio of 1 or less in the combustion furnace, and air is further injected downstream to complete combustion, so that NOx generated in the combustion furnace has an air ratio of 1 or less. Therefore, the generation amount of NOx is small, and NOx can be reduced with the NH 3 and HCN-containing gas, so that the generation of NOx can be further suppressed.
【００２０】本発明の他の実施の形態として石炭ガス化
複合発電プラントを図5に示す。石炭（微粉炭）1を加圧
下でガス化して生成ガスに変換するガス化炉10と、生成
ガスを脱塵し熱交換器40を経由したのち冷却し洗浄する
水洗浄装置50と、異常時等の処分を要する生成ガスを分
岐して焼却する生成ガス焼却炉120と、生成ガス中のH2S
を脱H2S装置70で除去したのち燃焼するH2S燃焼炉80と、
水洗浄装置50の排出水より減圧時に脱気したアンモニア
含有ガスを燃焼処理する図示しない補助ボイラ又はH2S
燃焼炉80及び生成ガス焼却炉120を兼ねた燃焼炉150（図
9参照）のうちのいずれか一つの分離ガス燃焼手段と、H
2S燃焼炉80又は一つの燃焼炉150へ接続する脱硫装置90
と、脱H2S装置70で精製されかつ熱交換器40で加熱され
た生成ガスが送給されるガスタービン130と、ガスター
ビン130及び図示しない蒸気タービンを含む発電設備と
を備えてなる構成とする。FIG. 5 shows an integrated coal gasification combined cycle power plant as another embodiment of the present invention. A gasification furnace 10 for gasifying coal (pulverized coal) 1 under pressure to convert it into product gas; a water cleaning device 50 for removing the generated gas from dust, passing through a heat exchanger 40, and cooling and cleaning the same; A generated gas incinerator 120 that branches and incinerates a generated gas requiring disposal, etc., and H 2 S in the generated gas
H 2 S combustion furnace 80, which burns after removing H 2 S in a de-H 2 S device 70,
Auxiliary boiler or H 2 S (not shown) that burns the ammonia-containing gas that has been degassed from the water discharged from the water washing device 50 during depressurization.
Combustion furnace 150 that also serves as combustion furnace 80 and generated gas incinerator 120 (see FIG.
9), any one of the separated gas combustion means
2 S combustion furnace 80 or desulfurization device 90 connected to one combustion furnace 150
And a gas turbine 130 to which product gas purified by the de-H 2 S device 70 and heated by the heat exchanger 40 is supplied, and a power generation facility including the gas turbine 130 and a steam turbine (not shown). And
【００２１】図1では、NH3及びHCN含有ガスを生成ガス
焼却炉120に導いて燃焼処分する構成であるが、図5では
NH3及びHCN含有ガスをH2S燃焼炉80で焼却処分するもの
である。この他の実施の形態でもNH3及びHCN含有ガスを
無害で処理することができる。図6、図7及び図8は、図
2、図3及び図4に対応させてH2S燃焼炉の詳細を示すもの
である。いずれもNH3及びHCN含有ガスを燃焼処理するこ
とができる。NH3及びHCN含有ガスはNOxの還元剤として
作用するため、H2S燃焼炉で発生したNOxをNH3及びHCN含
有ガスで還元できるため、H2S燃焼炉より排出するNOxの
生成を抑制することができる。FIG. 1 shows a configuration in which the NH 3 and HCN-containing gas is led to a generated gas incinerator 120 for combustion and disposal.
The gas containing NH 3 and HCN is incinerated in the H 2 S combustion furnace 80. In this other embodiment, the gas containing NH 3 and HCN can be treated harmlessly. 6, 7, and 8 are diagrams
2 shows details of the H 2 S combustion furnace corresponding to FIGS. 3 and 4. FIG. In either case, the gas containing NH 3 and HCN can be burned. Because NH 3 and HCN-containing gas which acts as a NOx reducing agent, since it is possible to reduce the NOx generated in the H 2 S combustion furnace with NH 3 and HCN-containing gas, suppress the generation of NOx discharged from the H 2 S combustion furnace can do.
【００２２】図9に本発明の他の実施の形態を示す。図1
では、NH3及びHCN含有ガスを生成ガス焼却炉120に導い
て処分するものであるが、図9はNH3及びHCN含有ガスをH
2S燃焼炉と生成ガス焼却炉とを兼ねた燃焼炉150で焼却
処分するものである。この他の実施の形態では、前記実
施の形態と同様、NH3及びHCN含有ガスを無害で処理する
ことができる。またこの他の実施の形態では、図6、図7
及び図8並びに図2、図3及び図4と同様に燃焼させること
によって、いずれもNH3及びHCN含有ガスを燃焼処理する
ことができる。また、NH3及びHCN含有ガスはNOxの還元
剤としても作用するため、燃焼炉150で発生したNOxをNH
3及びHCN含有ガスで還元できるため、燃焼炉より排出す
るNOxの生成を抑制することができる。FIG. 9 shows another embodiment of the present invention. Figure 1
In, but is intended to dispose leading the NH 3 and HCN-containing gas in the product gas incinerator 120, 9 NH 3 and HCN-containing gas H
The incinerator is to be incinerated in a combustion furnace 150 that also serves as a 2S combustion furnace and a generated gas incinerator. In this other embodiment, NH 3 and HCN-containing gas can be treated harmlessly as in the above-described embodiment. In other embodiments, FIGS.
In addition, by performing combustion in the same manner as in FIG. 8 and FIGS. 2, 3, and 4, the NH 3 and HCN-containing gas can be burned. Further, since the gas containing NH 3 and HCN also acts as a reducing agent for NOx, NOx generated in the combustion furnace 150 is converted into NH3.
Since it can be reduced by 3 and the HCN-containing gas, the generation of NOx discharged from the combustion furnace can be suppressed.
【００２３】なお、一般にプラントの起動時に必要な蒸
気を発生させる補助ボイラが設置されている。NH3及びH
CN含有ガスについて、前記各実施の形態に示すように本
補助ボイラに適用しても前記と同様に処理できる。Generally, an auxiliary boiler for generating necessary steam at the time of starting the plant is provided. NH 3 and H
The CN-containing gas can be treated in the same manner as described above even when applied to the auxiliary boiler as described in the above embodiments.
【００２４】[0024]
【発明の効果】本発明によれば、石炭のガス化によって
生成したアンモニア含有ガスを、いずれか一つの分離ガ
ス燃焼手段により、無害にあるいは排出するNOxの発生
を抑制して燃焼処理することができる。According to the present invention, the ammonia-containing gas generated by coal gasification can be burned harmlessly or by suppressing the generation of NOx to be discharged by any one of the separated gas combustion means. it can.
【図１】本発明の一実施の形態を示す構成図である。FIG. 1 is a configuration diagram showing an embodiment of the present invention.
【図２】図1の生成ガス焼却炉の燃焼状態を説明する断
面図である。FIG. 2 is a cross-sectional view illustrating a combustion state of the generated gas incinerator of FIG.
【図３】図1の生成ガス焼却炉の他の燃焼状態を説明す
る断面図である。FIG. 3 is a sectional view illustrating another combustion state of the generated gas incinerator of FIG. 1;
【図４】図1の生成ガス焼却炉の他の燃焼状態を説明す
る断面図である。FIG. 4 is a cross-sectional view illustrating another combustion state of the generated gas incinerator of FIG.
【図５】本発明の他の実施の形態を示す構成図である。FIG. 5 is a configuration diagram showing another embodiment of the present invention.
【図６】図5のH2S燃焼炉の燃焼状態を説明する断面図で
ある。6 is a sectional view illustrating a combustion state of the H 2 S combustion furnace of FIG.
【図７】図5のH2S燃焼炉の他の燃焼状態を説明する断面
図である。FIG. 7 is a sectional view illustrating another combustion state of the H 2 S combustion furnace of FIG. 5;
【図８】図5のH2S燃焼炉の他の燃焼状態を説明する断面
図である。FIG. 8 is a sectional view illustrating another combustion state of the H 2 S combustion furnace of FIG. 5;
【図９】本発明の他の実施の形態を示す構成図である。FIG. 9 is a configuration diagram showing another embodiment of the present invention.
【図１０】従来の技術を示す図である。FIG. 10 is a diagram showing a conventional technique.
1 微粉炭 2 酸化剤 10 ガス化炉 20 熱回収ボイラ 30 脱塵装置 40 熱交換器 50 水洗浄装置 70 脱H2S装置 80 H2S燃焼炉 90 脱SO2装置 100 煙突 110 ブロータンク 120 生成ガス焼却炉 130 ガスタービン 140 廃熱回収ボイラ 150 燃焼炉1 Pulverized coal 2 Oxidizing agent 10 Gasifier 20 Heat recovery boiler 30 Dedusting device 40 Heat exchanger 50 Water washing device 70 De-H 2 S device 80 H 2 S combustion furnace 90 De-SO 2 device 100 Chimney 110 Blow tank 120 generation Gas incinerator 130 Gas turbine 140 Waste heat recovery boiler 150 Combustion furnace
───────────────────────────────────────────────────── 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） Ｃ１０Ｋ 1/02 Ｃ１０Ｋ 1/02 1/10 1/10 Ｆ０２Ｃ 3/28 Ｆ０２Ｃ 3/28 Ｆ２３Ｂ 7/00 ３０５ Ｆ２３Ｂ 7/00 ３０５ Ｆ２３Ｇ 5/46 ＺＡＢ Ｆ２３Ｇ 5/46 ＺＡＢＺ (72)発明者 植田 昭雄 広島県呉市宝町３番36号 バブコック日立 株式会社呉研究所内 (72)発明者 山田 陸雄 広島県呉市宝町３番36号 バブコック日立 株式会社呉研究所内 (72)発明者 竹田 誠 広島県呉市宝町３番36号 バブコック日立 株式会社呉研究所内 (72)発明者 山口 英次 広島県呉市宝町６番９号 バブコック日立 株式会社呉事業所内 Ｆターム(参考） 3K046 AA02 AB01 CA02 CA10 EA03 FA06 3K065 AB02 AC20 BA05 JA05 JA18 3K078 AA05 BA03 BA25 BA27 BA28 CA02 CA12 CA24 4D020 AA09 BA23 BB03 4H060 AA01 BB02 BB25 DD24 FF07 GG01 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI theme coat ゛ (Reference) C10K 1/02 C10K 1/02 1/10 1/10 F02C 3/28 F02C 3/28 F23B 7/00 305 F23B 7/00 305 F23G 5/46 ZAB F23G 5/46 ZABZ (72) Inventor Akio Ueda 3-36 Takaracho, Kure-shi, Hiroshima Pref. No. 3-36 Babcock Hitachi Kure Research Institute Co., Ltd. (72) Inventor Makoto Takeda No. 3-36 Babcock Hitachi Kure Research Center Co., Ltd. (72) Inventor Eiji Yamaguchi 6-9 Takaracho Kure City, Hiroshima Prefecture No. F-term in Babcock Hitachi, Ltd. Kure Plant (reference) 3K046 AA02 AB01 CA02 CA10 EA03 FA06 3K065 AB02 AC20 BA05 JA05 JA18 3K078 AA05 BA03 BA25 BA27 BA28 CA02 CA12 CA24 4D020 AA09 BA23 BB03 4H060 AA01 BB02 BB25 DD24 FF07 GG01
Claims (5)
換し、生成ガスを脱塵し熱交換器を経由したのち水洗浄
装置で冷却して洗浄し、処分を要する生成ガスを分岐し
て生成ガス焼却炉で焼却し、生成ガス中のH2Sを脱H2S装
置で除去したのちH2S燃焼炉で燃焼し、前記水洗浄装置
の排出水より減圧時に脱気したアンモニア含有ガスは、
補助ボイラ、前記H2S燃焼炉及び前記生成ガス焼却炉よ
りなる複数の分離ガス燃焼手段のうちのいずれか一つの
分離ガス燃焼手段で燃焼処理されることを特徴とするア
ンモニア含有ガスの処理方法。1. Coal is converted into a product gas in a gasifier under pressure, the generated gas is dust-removed, passed through a heat exchanger, cooled and washed by a water washing device, and a product gas requiring disposal is branched. incinerated in the generated gas incinerator with the H 2 S in the product gas burned in H 2 S combustion furnace after removing in de H 2 S device was degassed at reduced pressure from the discharge water of the water washing device ammonia The contained gas is
A method for treating an ammonia-containing gas, wherein the combustion treatment is performed by any one of a plurality of separated gas combustion means including an auxiliary boiler, the H 2 S combustion furnace, and the generated gas incinerator. .
理方法において、前記アンモニア含有ガスは、補助ボイ
ラと、生成ガス焼却炉及びH2S燃焼炉を兼ねた一つの燃
焼炉とのいずれか一つの分離ガス燃焼手段で燃焼処理さ
れることを特徴とするアンモニア含有ガスの処理方法。2. The method for treating an ammonia-containing gas according to claim 1, wherein the ammonia-containing gas is one of an auxiliary boiler and one of a combustion furnace serving also as a product gas incinerator and an H 2 S combustion furnace. A method for treating ammonia-containing gas, wherein the treatment is performed by two separate gas combustion means.
スの処理方法において、前記アンモニア含有ガスは、一
つの分離ガス燃焼手段で燃料を燃焼させて発生した火炎
の下流にアンモニア含有ガスを注入して燃焼処理される
ことを特徴とするアンモニア含有ガスの処理方法。3. The method for treating an ammonia-containing gas according to claim 1, wherein the ammonia-containing gas is injected into a downstream side of a flame generated by burning fuel by one separation gas combustion means. A method for treating an ammonia-containing gas, wherein the ammonia-containing gas is subjected to combustion treatment.
スの処理方法において、前記アンモニア含有ガスは、一
つの分離ガス燃焼手段で燃料を空気比1以下で燃焼させ
て発生した火炎の下流にアンモニア含有ガスを注入し、
かつ該アンモニア含有ガスの注入による燃焼の下流に空
気を注入して燃焼処理されることを特徴とするアンモニ
ア含有ガスの処理方法。4. The method for treating an ammonia-containing gas according to claim 1, wherein the ammonia-containing gas is provided downstream of a flame generated by burning fuel at an air ratio of 1 or less by one separation gas combustion means. Inject the contained gas,
A method for treating ammonia-containing gas, wherein air is injected downstream of the combustion by injection of the ammonia-containing gas to perform combustion treatment.
換するガス化炉と、生成ガスを脱塵し熱交換器を経由し
たのち冷却し洗浄する水洗浄装置と、処分を要する生成
ガスを分岐して焼却する生成ガス焼却炉と、生成ガス中
のH2Sを脱H2S装置で除去したのち燃焼するH2S燃焼炉
と、前記水洗浄装置の排出水より減圧時に脱気したアン
モニア含有ガスを燃焼処理する補助ボイラ又は前記H2S
燃焼炉及び前記生成ガス焼却炉を兼ねた燃焼炉のうちの
いずれか一つの分離ガス燃焼手段と、前記H2S燃焼炉又
は前記一つの燃焼炉へ接続する脱硫装置と、前記脱H2S
装置で精製されかつ前記熱交換器で加熱された生成ガス
が送給されるガスタービンと、該ガスタービン及び蒸気
タービンを含む発電設備とを備えてなることを特徴とす
る石炭ガス化複合発電プラント。5. A gasification furnace for gasifying coal under pressure to convert it into product gas, a water cleaning device for removing the product gas, passing through a heat exchanger, and cooling and washing the product gas, and a product gas requiring disposal. and product gas incinerator for incineration is branched, degassed H 2 S in the product gas and H 2 S combustion furnace for burning after removing in de H 2 S device, at reduced pressure from the discharge water of the water washing device Auxiliary boiler for burning treated ammonia-containing gas or H 2 S
And one separation gas combustion means any of the combustion furnace and combustion furnace which also serves as the product gas incinerator, a desulfurization device to connect to the H 2 S combustion furnace or the one of the combustion furnace, the de H 2 S
A combined gasification combined cycle power plant comprising: a gas turbine to which a product gas purified by a device and heated by the heat exchanger is supplied; and a power generation facility including the gas turbine and a steam turbine. .
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| JP2001045956A JP4519338B2 (en) | 2001-02-22 | 2001-02-22 | Method for treating ammonia-containing gas and coal gasification combined power plant |
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|---|---|---|---|
| JP2001045956A JP4519338B2 (en) | 2001-02-22 | 2001-02-22 | Method for treating ammonia-containing gas and coal gasification combined power plant |
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| JP4519338B2 JP4519338B2 (en) | 2010-08-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019069519A1 (en) * | 2017-10-04 | 2019-04-11 | 三菱重工エンジニアリング株式会社 | Gas combustion treatment device, combustion treatment method, and gas purification system provided with gas combustion treatment device |
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|---|---|---|---|---|
| JPS63274427A (en) * | 1987-05-07 | 1988-11-11 | Central Res Inst Of Electric Power Ind | Composite dry dust collector for power generation by coal gasification |
| JPH11165033A (en) * | 1997-12-05 | 1999-06-22 | Babcock Hitachi Kk | Coal gasification complex power plant and formed gas treatment on abnormality thereof |
| JP2000290668A (en) * | 1999-04-12 | 2000-10-17 | Mitsubishi Heavy Ind Ltd | Purification of gas |
-
2001
- 2001-02-22 JP JP2001045956A patent/JP4519338B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63274427A (en) * | 1987-05-07 | 1988-11-11 | Central Res Inst Of Electric Power Ind | Composite dry dust collector for power generation by coal gasification |
| JPH11165033A (en) * | 1997-12-05 | 1999-06-22 | Babcock Hitachi Kk | Coal gasification complex power plant and formed gas treatment on abnormality thereof |
| JP2000290668A (en) * | 1999-04-12 | 2000-10-17 | Mitsubishi Heavy Ind Ltd | Purification of gas |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019069519A1 (en) * | 2017-10-04 | 2019-04-11 | 三菱重工エンジニアリング株式会社 | Gas combustion treatment device, combustion treatment method, and gas purification system provided with gas combustion treatment device |
| JP2019066140A (en) * | 2017-10-04 | 2019-04-25 | 三菱重工エンジニアリング株式会社 | Gas combustion treatment device, combustion treatment method, and gas refining system having the gas combustion treatment device |
| CN111033124A (en) * | 2017-10-04 | 2020-04-17 | 三菱重工工程株式会社 | Gas combustion processing device, combustion processing method, and gas purification system provided with gas combustion processing device |
| US11365882B2 (en) | 2017-10-04 | 2022-06-21 | Mitsubishi Heavy Industries Engineering, Ltd. | Gas combustion treatment device, combustion treatment method, and gas purification system including gas combustion treatment device |
| CN111033124B (en) * | 2017-10-04 | 2022-09-16 | 三菱重工工程株式会社 | Gas combustion processing device, combustion processing method, and gas purification system |
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|---|---|
| JP4519338B2 (en) | 2010-08-04 |
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