A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
COMBUSTION EXHAUST GAS PROCESSOR AND PROCESSING METHOD, AND MERCURY ADSORBENT
PROBLEM TO BE SOLVED: To more effectively reduce a mercury concentration in a flue gas such as a cement kiln exhaust gas or the like while effectively utilizing coal ashes.SOLUTION: This invention provides a combustion exhaust gas processor 1 comprising a separation unit 4 which separates coal ash C into an ash content A and an unburned carbon U1, a blowing unit which blows the unburned carbon U1 separated by the separation unit into a flue gas G2, and a dust collector 6 which recovers the unburned carbon U2 which has adsorbed mercury in the flue gas, and so on. According to this invention, in order to blow the unburned carbon separated from the coal ash, a surface area of the unburned carbon which contacts mercury, can be significantly increased rather than the coal ash containing the unburned carbon is blown, and a concentration of mercury in the flue gas can be more effectively reduced. The flue gas is a cement kiln exhaust gas, the blowing unit can blow the unburned carbon from the separation unit into a gas after dust collection from the cement kiln exhaust gas.SELECTED DRAWING: Figure 1
【課題】石炭灰を有効利用しながらセメントキルン排ガス等の燃焼排ガス中の水銀濃度をより効果的に低減する。【解決手段】石炭灰Ｃを灰分Ａと未燃カーボンＵ１とに分離する分離装置４と、分離装置で分離された未燃カーボンＵ１を燃焼排ガスＧ２に吹き込む吹込装置と、燃焼排ガス中の水銀を吸着した未燃カーボンＵ２を回収する集塵装置６とを備える燃焼排ガス処理装置１等。石炭灰から分離した未燃カーボンを吹き込むため、未燃カーボンを含む石炭灰を吹き込むよりも、水銀と接触する未燃カーボンの表面積を大幅に増加させることができ、燃焼排ガス中の水銀濃度をより効果的に低減することができる。燃焼排ガスはセメントキルン排ガスであって、吹込装置は、セメントキルン排ガスから集塵した後のガスに、分離装置からの未燃カーボンを吹き込むことができる。【選択図】図１
COMBUSTION EXHAUST GAS PROCESSOR AND PROCESSING METHOD, AND MERCURY ADSORBENT
PROBLEM TO BE SOLVED: To more effectively reduce a mercury concentration in a flue gas such as a cement kiln exhaust gas or the like while effectively utilizing coal ashes.SOLUTION: This invention provides a combustion exhaust gas processor 1 comprising a separation unit 4 which separates coal ash C into an ash content A and an unburned carbon U1, a blowing unit which blows the unburned carbon U1 separated by the separation unit into a flue gas G2, and a dust collector 6 which recovers the unburned carbon U2 which has adsorbed mercury in the flue gas, and so on. According to this invention, in order to blow the unburned carbon separated from the coal ash, a surface area of the unburned carbon which contacts mercury, can be significantly increased rather than the coal ash containing the unburned carbon is blown, and a concentration of mercury in the flue gas can be more effectively reduced. The flue gas is a cement kiln exhaust gas, the blowing unit can blow the unburned carbon from the separation unit into a gas after dust collection from the cement kiln exhaust gas.SELECTED DRAWING: Figure 1
【課題】石炭灰を有効利用しながらセメントキルン排ガス等の燃焼排ガス中の水銀濃度をより効果的に低減する。【解決手段】石炭灰Ｃを灰分Ａと未燃カーボンＵ１とに分離する分離装置４と、分離装置で分離された未燃カーボンＵ１を燃焼排ガスＧ２に吹き込む吹込装置と、燃焼排ガス中の水銀を吸着した未燃カーボンＵ２を回収する集塵装置６とを備える燃焼排ガス処理装置１等。石炭灰から分離した未燃カーボンを吹き込むため、未燃カーボンを含む石炭灰を吹き込むよりも、水銀と接触する未燃カーボンの表面積を大幅に増加させることができ、燃焼排ガス中の水銀濃度をより効果的に低減することができる。燃焼排ガスはセメントキルン排ガスであって、吹込装置は、セメントキルン排ガスから集塵した後のガスに、分離装置からの未燃カーボンを吹き込むことができる。【選択図】図１
COMBUSTION EXHAUST GAS PROCESSOR AND PROCESSING METHOD, AND MERCURY ADSORBENT
燃焼排ガス処理装置及び処理方法並びに水銀吸着剤
CHIBA HIROMI (author) / YAMAGAMI KOICHI (author)
2018-08-30
Patent
Electronic Resource
Japanese
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