JP2005230769A5 - - Google Patents

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JP2005230769A5
JP2005230769A5 JP2004046229A JP2004046229A JP2005230769A5 JP 2005230769 A5 JP2005230769 A5 JP 2005230769A5 JP 2004046229 A JP2004046229 A JP 2004046229A JP 2004046229 A JP2004046229 A JP 2004046229A JP 2005230769 A5 JP2005230769 A5 JP 2005230769A5
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removal
nitrogen oxide
solid adsorbent
unit
regeneration
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JP4565857B2 (en
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気体中に含まれる窒素酸化物を除去する方法であって、
窒素酸化物を吸着して除去する固体吸着剤を含む窒素酸化物吸着手段に、前記気体を供給することにより前記気体中に含まれる窒素酸化物を除去する除去工程と、
前記除去工程によって低下した前記窒素酸化物吸着手段の前記窒素酸化物の除去機能を、塩基性物質または還元性物質を含む再生剤を前記固体吸着剤に供給することによって、前記固体吸着剤が吸着した窒素酸化物を除去して再生する再生工程とを含み、
前記除去工程と前記再生工程とを同時に行うことにより、前記固体吸着剤が、除去工程を行っている除去部と、再生工程を行っている再生部とを含み、前記固体吸着剤を、中心軸を中心として回転可能な回転容器に収納し、前記回転容器を回転させることにより、前記除去部の少なくとも一部と前記再生部の少なくとも一部とを交換することを特徴とする窒素酸化物の除去方法。 A method for removing nitrogen oxides contained in a gas,
A removal step of removing nitrogen oxides contained in the gas by supplying the gas to a nitrogen oxide adsorbing means including a solid adsorbent that adsorbs and removes nitrogen oxides;
The solid adsorbent is adsorbed by supplying a regenerant containing a basic substance or a reducing substance to the solid adsorbent so that the nitrogen oxide removing function of the nitrogen oxide adsorbing means lowered by the removing step is reduced. And a regeneration step for removing and regenerating the oxidized nitrogen oxide,
By performing the said regeneration step and the removal step simultaneously, the solid adsorbent, and a removal unit that is performing the removing step, and a reproducing unit which is performing the reproduction process, the solid adsorbent, the central axis Nitrogen oxide removal characterized in that at least a part of the removal part and at least a part of the regeneration part are exchanged by rotating the rotary container and rotating the rotary container. Method. 前記回転容器に、前記回転容器内を仕切る複数の仕切板を前記中心軸から側面に向かって設け、前記複数の仕切板により前記除去部と前記再生部との間を仕切ることを特徴とする請求項１に記載の窒素酸化物の除去方法。 A plurality of partition plates for partitioning the inside of the rotary container are provided on the rotary container from the central axis toward the side surface, and the removal unit and the regeneration unit are partitioned by the plurality of partition plates. Item 2. The method for removing nitrogen oxides according to Item 1 . 前記固体吸着剤に前記再生剤を供給する供給位置を変更することにより、前記除去部の少なくとも一部と前記再生部の少なくとも一部とを交換することを特徴とする請求項１に記載の窒素酸化物の除去方法。   2. The nitrogen according to claim 1, wherein at least a part of the removal unit and at least a part of the regeneration unit are exchanged by changing a supply position for supplying the regeneration agent to the solid adsorbent. Method for removing oxides. 窒素酸化物センサーにより前記除去機能を検知する検知工程を含み、前記検知工程において除去機能の低下が検知された場合に、前記除去部の少なくとも一部と前記再生部の少なくとも一部とを交換することを特徴とする請求項１に記載の窒素酸化物の除去方法。   Including a detection step of detecting the removal function by a nitrogen oxide sensor, and when a decrease in the removal function is detected in the detection step, at least a part of the removal unit and at least a part of the regeneration unit are exchanged The method for removing nitrogen oxides according to claim 1. 前記窒素酸化物吸着装置と前記再生剤を貯留する再生剤タンクとの間で、前記再生剤を循環させることを特徴とする請求項１から請求項４のいずれかに記載の窒素酸化物の除去方法。 The nitrogen oxide removal according to any one of claims 1 to 4 , wherein the regenerant is circulated between the nitrogen oxide adsorbing device and a regenerant tank storing the regenerant. Method. 前記気体が、道路トンネル内、地下駐車場内、都市内幹線道路近傍のいずれかの大気が採取されたものであることを特徴とする請求項１から請求項５のいずれかに記載の窒素酸化物の除去方法。 The nitrogen oxide according to any one of claims 1 to 5 , wherein the gas is collected from any air in a road tunnel, underground parking lot, or in the vicinity of an urban trunk road. Removal method. 前記固体吸着剤が、炭素系材料であることを特徴とする請求項１から請求項６のいずれかに記載の窒素酸化物の除去方法。 Method for removing the solid adsorbent, the nitrogen oxide according to any one of claims 1 to 6, characterized in that the carbon-based material. 前記塩基性物質が、アルカリ金属の水酸化物またはアルカリ土類金属の水酸化物であることを特徴とする請求項１から請求項７のいずれかに記載の窒素酸化物の除去方法。 The method for removing nitrogen oxides according to any one of claims 1 to 7 , wherein the basic substance is an alkali metal hydroxide or an alkaline earth metal hydroxide. 前記還元性物質が、亜硫酸塩であることを特徴とする請求項１から請求項７のいずれかに記載の窒素酸化物の除去方法。 The reducing substance, the method for removing nitrogen oxides as claimed in any one of claims 7, characterized in that a sulfite. 気体中に含まれる窒素酸化物を除去する装置であって、
窒素酸化物を吸着して除去する固体吸着剤を含む窒素酸化物吸着手段と、
塩基性物質または還元性物質を含む再生剤を前記固体吸着剤に供給することにより、前記固体吸着剤に吸着された前記窒素酸化物を除去し、前記窒素酸化物の除去機能を再生する再生剤供給手段と、
前記固体吸着剤を収納し、中心軸を中心として回転可能な回転容器と、
前記固体吸着剤が、前記窒素酸化物を吸着して除去する除去工程を行う除去部と、前記窒素酸化物の除去機能を再生する再生工程を行う再生部とを含み、前記回転容器が回転されることにより、前記除去部の少なくとも一部と前記再生部の少なくとも一部とが交換されることを特徴とする窒素酸化物の除去装置。 An apparatus for removing nitrogen oxides contained in a gas,
Nitrogen oxide adsorption means including a solid adsorbent that adsorbs and removes nitrogen oxides;
A regenerant that regenerates the nitrogen oxide removal function by removing the nitrogen oxide adsorbed on the solid adsorbent by supplying the solid adsorbent with a regenerant containing a basic substance or a reducing substance. Supply means;
A rotating container that houses the solid adsorbent and is rotatable about a central axis;
The solid adsorbent includes a removal unit that performs a removal step of adsorbing and removing the nitrogen oxides, and a regeneration unit that performs a regeneration step of regenerating the nitrogen oxide removal function, and the rotating container is rotated. Thus, at least a part of the removal unit and at least a part of the regeneration unit are exchanged . 前記回転容器には、前記回転容器内を仕切る複数の仕切板が前記中心軸から側面に向かって設けられ、
前記複数の仕切板により前記除去部と前記再生部との間が仕切られていることを特徴とする請求項１０に記載の窒素酸化物の除去装置。 The rotating container is provided with a plurality of partition plates for partitioning the rotating container from the central axis toward the side surface,
The apparatus for removing nitrogen oxide according to claim 10 , wherein the removal unit and the regeneration unit are partitioned by the plurality of partition plates. 前記固体吸着剤に前記再生剤を供給する供給位置が変更可能なものであり、
前記供給位置が変更されることにより、前記除去部の少なくとも一部と前記再生部の少なくとも一部とが交換されることを特徴とする請求項１０に記載の窒素酸化物の除去装置。 The supply position for supplying the regenerant to the solid adsorbent is changeable,
The apparatus for removing nitrogen oxides according to claim 10 , wherein at least a part of the removal unit and at least a part of the regeneration unit are exchanged by changing the supply position.
JP2004046229A 2004-02-23 2004-02-23 Nitrogen oxide removing method and nitrogen oxide removing apparatus Expired - Lifetime JP4565857B2 (en)

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KR101377638B1 (en) 2012-09-27 2014-03-25 현대제철 주식회사 Apparatus for supplying activated carbon and facility for treating exhaust gas with the same
CN115518491B (en) * 2022-09-28 2023-08-25 江苏新久扬环保设备科技有限公司 Gas uniform distribution adsorption tank and use method

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JPS55162331A (en) * 1979-06-04 1980-12-17 Minoru Tanaka Wet type harm removing method for exhaust gas containing nitrogen oxide
JPS5814933A (en) * 1981-07-21 1983-01-28 Sukezo Ishii Method and apparatus for desulfurizing and denitrating exhaust gas in dry system
JPH04161221A (en) * 1990-10-26 1992-06-04 Osaka Gas Co Ltd Method and apparatus adsorbing and removing nox
JPH04171016A (en) * 1990-10-31 1992-06-18 Osaka Gas Co Ltd Nox containing gas treatment device
JPH05253445A (en) * 1992-03-12 1993-10-05 Hitachi Zosen Corp Method for adsorption removing low concentration nitrogen oxide
JPH09225260A (en) * 1996-02-20 1997-09-02 Ebara Corp Regenerating method of activated carbon based material
JP2003159511A (en) * 2001-11-26 2003-06-03 Mitsubishi Electric Corp Method for regenerating denitration adsorbent and method and apparatus for exhaust gas treatment

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