JPS62171736A - Method for injecting dilution gas for ammonia in dry desulfurization and denitration facility - Google Patents
Method for injecting dilution gas for ammonia in dry desulfurization and denitration facilityInfo
- Publication number
- JPS62171736A JPS62171736A JP61011163A JP1116386A JPS62171736A JP S62171736 A JPS62171736 A JP S62171736A JP 61011163 A JP61011163 A JP 61011163A JP 1116386 A JP1116386 A JP 1116386A JP S62171736 A JPS62171736 A JP S62171736A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- dust collector
- exhaust gas
- blower
- adsorption tower
- 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
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 8
- 230000023556 desulfurization Effects 0.000 title claims abstract description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title abstract description 10
- 239000012895 dilution Substances 0.000 title abstract description 6
- 238000010790 dilution Methods 0.000 title abstract description 6
- 229910021529 ammonia Inorganic materials 0.000 title abstract description 4
- 238000000034 method Methods 0.000 title abstract description 3
- 239000000428 dust Substances 0.000 claims abstract description 19
- 238000001179 sorption measurement Methods 0.000 claims abstract description 12
- 239000003085 diluting agent Substances 0.000 claims description 5
- 238000007865 diluting Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 4
- 229910000069 nitrogen hydride Inorganic materials 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 34
- 238000010586 diagram Methods 0.000 description 3
- 239000012716 precipitator Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 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】
（関連技術分野）
本発明は乾式脱硫脱硝装置におけるＮＨ，希釈ガスの注
入方法の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Related Technical Field) The present invention relates to an improvement in a method for injecting NH and diluent gas into a dry desulfurization and denitrification apparatus.
（従来技術） 従来乾式脱硫装置にＮ１１Ｊを注入する場合、ＮＩＩ。(Conventional technology) When injecting N11J into conventional dry desulfurization equipment, NII.
ガスが拡散し、Ｓガス中に均一に分散しやすくするため
、空−ｔをほぼ排ガス７！！度と同し温度まで昇温し、
約６％のアンモニア希釈ガスをつくって徘カス中に注入
している。In order to make it easier for the gas to diffuse and be uniformly dispersed in the S gas, the air-t is almost the exhaust gas 7! ! The temperature is raised to the same temperature as the
Approximately 6% ammonia dilution gas is created and injected into the waste.
（発明の解決しようとする問題点及目的）ＮＨ，希釈ガ
スとして空気を使用すると、これの加熱昇温の必要があ
る。又これを排気ガス中に注入するのにファンによって
送り込むのに大きな動力を必要とし、不経済である。(Problems and Objectives to be Solved by the Invention) When air is used as the NH or diluent gas, it is necessary to heat it to raise its temperature. In addition, a large amount of power is required to inject this into the exhaust gas using a fan, which is uneconomical.
本発明はこれら昇温、昇圧の不経済な工程を省き、経済
的な乾式脱硫、脱硝装置を提供しようとするものである
。The present invention aims to provide an economical dry desulfurization and denitrification equipment by omitting these uneconomic steps of temperature and pressure increases.
（解決手段）
乾式脱硫脱硝装置において、排ガス集塵器によって集塵
されたクリーンガスの一部をリサイクルして吸着塔又は
脱硝塔に注入するＮＨ，ガスの希釈用ガスとして利用す
るようにした。(Solution) In the dry desulfurization and denitrification equipment, a part of the clean gas collected by the exhaust gas dust collector is recycled and used as a diluting gas for NH and gas to be injected into the adsorption tower or the denitrification tower.
（第１実施例）
第１図に基いて説明する。１はブロワ−で、該ブロワ−
にて排ガスは吸着塔２に送り込まれる。(First Example) This will be explained based on FIG. 1. 1 is a blower;
The exhaust gas is sent to the adsorption tower 2.
吸着塔２内で活性炭によって吸着されたガスは排ガス集
塵器３で集塵され、クリーンガスとなって排出される。The gas adsorbed by activated carbon in the adsorption tower 2 is collected by an exhaust gas dust collector 3 and discharged as clean gas.
４はブロワ−１の出側と排ガス集塵器３の出側間に設け
られたファン５を具えたリサイクル回路で、ＮＨ，ガス
との混合器６を具えている。4 is a recycling circuit equipped with a fan 5 provided between the outlet side of the blower 1 and the outlet side of the exhaust gas dust collector 3, and is equipped with a mixer 6 for mixing NH and gas.
排ガスは吸着塔２でＮＯｘ、ＳＯｘを吸着され、さらに
排ガス集塵器で集塵されて排出されるが、排ガス集塵器
３出口のクリーンガスがファン５によって途中にＮＩ（
、ガスを混合されてブロワ−１の出口側に希釈ガスとし
てリサイクルされる。The exhaust gas is adsorbed with NOx and SOx in the adsorption tower 2, and further collected with an exhaust gas dust collector and discharged.
The mixed gases are recycled to the outlet side of the blower 1 as diluent gas.
（第２実施例）
第２図に基いて説明する。排ガスはブロワ−１によって
吸着塔２、脱硝塔７によって脱硫・脱硝されたのち、集
塵器３で集塵されてクリーンガスとなり排出される。(Second embodiment) This will be explained based on FIG. 2. The exhaust gas is desulfurized and denitrated by a blower 1, an adsorption tower 2, and a denitrification tower 7, and then collected by a dust collector 3 and discharged as clean gas.
集塵器３の出口側から分岐したファン５を具えたリサイ
クル回路４はＮＨ３ｆｉ合器６を経てブロワ−１の出口
側と吸着塔２の出口側に希釈ガスとしてリサイクルされ
ている。A recycling circuit 4 equipped with a fan 5 branched from the outlet side of the dust collector 3 is recycled as diluted gas to the outlet side of the blower 1 and the outlet side of the adsorption tower 2 via an NH3fi combiner 6.
（作用）
吸着塔２でＳＯ２を、又必要な場合は第２実施例の如く
脱硝塔７でＮＯｘを除去されて、集塵器３でダストを除
去されたクリーンガスは脱硫塔又は脱硝塔の前に注入す
るＮＨ，の希釈用ガスとして使用される。(Operation) The clean gas from which SO2 is removed in the adsorption tower 2, NOx is removed in the denitrification tower 7 as in the second embodiment if necessary, and dust is removed in the dust collector 3 is sent to the desulfurization tower or the denitrification tower. It is used as a diluent gas for the NH, which is injected beforehand.
（効果） １）空気のかわりに排ガス集塵器出口ガスをＮＨ。(effect) 1) Use NH instead of air for exhaust gas dust collector outlet gas.
希釈用ガスとして使用するようにした。このため入口の
排ガス温度とほぼ同温の集塵器出口ガスを使用するため
、希釈用ガスの昇温をする必要がなくなった。It is now used as a dilution gas. Therefore, since the precipitator outlet gas is used, which has approximately the same temperature as the exhaust gas temperature at the inlet, there is no need to raise the temperature of the dilution gas.
２）排ガス集塵器出口ガスは正圧であるため、ファン５
の昇圧能力が大気空気を使用する場合にくらべ、その分
すくなくてすみ経済的である。2) Since the exhaust gas dust collector outlet gas has positive pressure, the fan 5
Compared to the case of using atmospheric air, the pressurization capacity is reduced by that amount and it is economical.
第１図は本発明の第１実施例回路図。
第２図は同じく第２実施例回路図。
図において；
１ ブロワ−２吸着塔
３ 集塵器 ４ リサイクル回路５ ファン
６ ＮＨ，混合器７ 脱硝塔
以上FIG. 1 is a circuit diagram of a first embodiment of the present invention. FIG. 2 is a circuit diagram of the second embodiment. In the diagram: 1 Blower 2 Adsorption tower 3 Dust collector 4 Recycling circuit 5 Fan
6 NH, mixer 7 Above the denitrification tower
Claims (1)
されたクリーンガスの一部をリサイクルして吸着塔又は
脱硝塔に注入するＮＨ＿３ガスの希釈用ガスとして利用
することを特徴とする乾式脱硫脱硝装置におけるＮＨ＿
３希釈ガスの注入方法。A dry desulfurization and denitrification device characterized in that a part of the clean gas collected by the exhaust gas dust collector is recycled and used as a gas for diluting NH_3 gas to be injected into an adsorption tower or a denitrification tower. NH_ in
3. How to inject diluent gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61011163A JPS62171736A (en) | 1986-01-23 | 1986-01-23 | Method for injecting dilution gas for ammonia in dry desulfurization and denitration facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61011163A JPS62171736A (en) | 1986-01-23 | 1986-01-23 | Method for injecting dilution gas for ammonia in dry desulfurization and denitration facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62171736A true JPS62171736A (en) | 1987-07-28 |
Family
ID=11770372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61011163A Pending JPS62171736A (en) | 1986-01-23 | 1986-01-23 | Method for injecting dilution gas for ammonia in dry desulfurization and denitration facility |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62171736A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5330976A (en) * | 1976-09-03 | 1978-03-23 | Toray Ind Inc | Removing method for nitrogen oxides |
| JPS5814979U (en) * | 1981-07-20 | 1983-01-29 | セイレイ工業株式会社 | Grain sorting equipment |
-
1986
- 1986-01-23 JP JP61011163A patent/JPS62171736A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5330976A (en) * | 1976-09-03 | 1978-03-23 | Toray Ind Inc | Removing method for nitrogen oxides |
| JPS5814979U (en) * | 1981-07-20 | 1983-01-29 | セイレイ工業株式会社 | Grain sorting equipment |
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