KR970073702A - A reforming reductant for flue gas denitrification and a method for removing nitrogen oxides using the same - Google Patents

A reforming reductant for flue gas denitrification and a method for removing nitrogen oxides using the same Download PDF

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KR970073702A
KR970073702A KR1019960017224A KR19960017224A KR970073702A KR 970073702 A KR970073702 A KR 970073702A KR 1019960017224 A KR1019960017224 A KR 1019960017224A KR 19960017224 A KR19960017224 A KR 19960017224A KR 970073702 A KR970073702 A KR 970073702A
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reforming
reductant
reducing agent
reducing
group
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KR1019960017224A
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KR100197287B1 (en
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송재준
오동규
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송재준
한모기술 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treating Waste Gases (AREA)

Abstract

종래의 무촉매 환원 탈질법에 의한 질소산화물 제거 방법에서 사용되는 환원에 산화제 및/또는 분무 촉진 첨가제를 동시에 연소로 내에 분무하여, 반응온도 500∼800℃의 비교적 낮은 운전 온도 범위에서도 50%이상의 높은 질소산화물 제거 효율을 얻을 수 있다.The oxidizing agent and / or the spray promoting additive are simultaneously sprayed into the combustion furnace at the reduction used in the nitrogen oxide removal method by the conventional non-catalytic reduction denitrification method, and at a relatively low operating temperature range of 500 to 800 ° C., The nitrogen oxide removal efficiency can be obtained.

Description

배연 탈질용 개질 환원제와 이를 이용한 질소산화물 제거 방법A reforming reductant for flue gas denitrification and a method for removing nitrogen oxides using the same

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명의 일 실시예에 따른 환원탈질용 개질 환원제의 제조 장치를 개략적으로 나타내는 설명도, 제2도는 제1도에서 제조한 환원탈질용 개질 환원제를 연소로 내에 분무하는 장치를 개략적으로 나타내는 장치도.FIG. 1 schematically illustrates an apparatus for producing a reforming reducing agent for reducing denitration according to an embodiment of the present invention. FIG. 2 schematically shows an apparatus for spraying a reducing denitration reforming reducing agent prepared in FIG. 1 into a combustion furnace Also indicating the device.

Claims (19)

연소로내에 환원제와 산화제를 투여하는 공정을 포함하는 질소산화물의 제거 방법.A method for removing nitrogen oxides comprising the step of administering a reducing agent and an oxidizing agent in a combustion furnace. 제1항에 있어서, 상기 산화제는 OH 라디칼을 생성시킬 수 있는 것인 질소산화물의 제거 방법.The method of claim 1, wherein the oxidant is capable of generating an OH radical. 제1항에 있어서, 상기 산화제는 과산화수소인 질소산화물의 제거 방법.The method of claim 1, wherein the oxidizing agent is hydrogen peroxide. 제1항에 있어서, 상기 환원제 및 산화제의 분무 상태를 증가시키는 분무 촉진 첨가제를 더욱 투여하는 질소산화물의 저게 방법.The method of claim 1, further comprising administering a spray promoting additive that increases the spray of the reducing agent and the oxidizing agent. 제4항에 있어서, 상기 분무 촉진 첨가제는 알콜류인 질소산화물의 제거 방법.5. The method of claim 4, wherein the spray promoting additive is an alcohol. 제5항에 있어서, 상기 알콜류는 메탄올, 에탄올, 프로판올, 이소프로판올, 부탄올, 헥산올로 이루어진 군에서 선택되는 하나 또는 둘 이상의 혼합물인 질소산화물의 제거 방법.6. The method for removing nitrogen oxides according to claim 5, wherein the alcohols are one or a mixture of two or more selected from the group consisting of methanol, ethanol, propanol, isopropanol, butanol, and hexanol. 제1항에 있어서, 상기 환원제는 암모니아 수용액, 요소 수용액으로 이루어진 군에서 선택되는 하나 이상의 것인 질소 산화물의 제거 방법.The method for removing nitrogen oxides according to claim 1, wherein the reducing agent is at least one selected from the group consisting of aqueous ammonia solution and urea aqueous solution. 환원제와, 상온에서 환원제와 반응하지 않은 산화제를；포함하는 환원탈질용 개질 환원제.And a reducing agent and an oxidizing agent which has not reacted with the reducing agent at normal temperature. 제8항에 있어서, 상기 산화제는 OH 라디칼을 생성시킬 수 있는 것인 환원탈질용 개질 환원제.The reforming reductant for reduction denitrification according to claim 8, wherein the oxidizing agent is capable of generating an OH radical. 제9항에 있어서, 상기 산화제는 과산화수소인 환원탈질용 개질 환원제.The reforming reductant according to claim 9, wherein the oxidizing agent is hydrogen peroxide. 제8항에 있어서, 상기 개질 환원제는 분무 상태를 증가시키는 분무 촉진 첨가제 10중량%까지 더욱 포함하는 환원탈질용 개질환원제.9. The reforming reductant for reduction denitration according to claim 8, wherein the reforming reducing agent further comprises up to 10% by weight of a spray promoting additive for increasing the spraying state. 제11항에 있어서, 상기 분무 촉진 첨가제는 알콜류인 환원탈질용 개질 환원제.12. The reforming reducing agent according to claim 11, wherein the spray promoting additive is an alcohol. 제12항에 있어서, 상기 알콜류는 메탄올, 에탄올, 프로판올, 이소프로판올, 부탄올, 헥산올로 이루어진 군에서 선택되는 하나 또는 둘 이상의 혼합물인 환원탈질용 개질 환원제.The reforming reductant for reducing denitration according to claim 12, wherein the alcohols are one or a mixture of two or more selected from the group consisting of methanol, ethanol, propanol, isopropanol, butanol and hexanol. 제8항에 있어서, 상기 환원제는 암모니아 수용액, 요소 수용액으로 이루어진 군에서 선택되는 하나 이상의 것인 환원탈질용 개질 환원제.The reforming reductant for reducing denitration according to claim 8, wherein the reducing agent is at least one selected from the group consisting of aqueous ammonia solution and urea aqueous solution. 환원제와；분무 상태를 증가시키는 분무 촉진 첨가제를；포함하는 환원탈질용 개질 환원제.A reducing agent and a spray promoting additive for increasing the spraying state. 제15항에 있어서, 상기 분무 촉진 첨가제는 알콜류인 환원탈질용 개질 환원제.16. The reforming reducing agent according to claim 15, wherein the spray promoting additive is an alcohol. 제16항에 있어서, 상기 알콜류는 메탄올, 에탄올, 프로판올, 이소프로판올, 부탄올, 헥산올로 이루어진 군에서 선택되는 하나 또는 둘 이상의 혼합물인 환원탈질용 개질 환원제.The reforming reductant for reducing denitration according to claim 16, wherein the alcohols are one or a mixture of two or more selected from the group consisting of methanol, ethanol, propanol, isopropanol, butanol and hexanol. 제15항에 있어서, 상기 환원제는 암모니아 수용액, 요소 수용액으로 이루어진 군에서 선택되는 하나 이상의 것인 환원탈질용 개질 환원제.16. The reforming reductant for reducing denitration according to claim 15, wherein the reducing agent is at least one selected from the group consisting of aqueous ammonia solution and urea aqueous solution. 연소로 내에 제15항의 환원탈질용 개질 환원제를 투여하는 공정을 포함하는 질소산화물의 제거 방법.And a step of administering the reforming reductant for reducing denitration of claim 15 in a combustion furnace. ※ 참고사항：최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960017224A 1996-05-21 1996-05-21 Reforming reductant for exhaust gas denitrogen and the method of removing nitrogen oxide KR100197287B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100374291B1 (en) * 2000-10-19 2003-03-03 한국동서발전(주) Method for reducing the content of nitrogen oxides in gas exhausted from combustion reactor
KR100401996B1 (en) * 1998-12-24 2004-01-24 주식회사 포스코 Improved method of wet scrubbing of nitrogen oxides from flue gas

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100402051B1 (en) * 2000-10-18 2003-10-17 한국과학기술연구원 Selective non-catalytic reducing agent for reducing nitric oxides in flue gases
CA2924319C (en) * 2013-09-13 2021-06-22 Peroxychem Llc Treatment of nitrogen oxides in flue gas streams
KR102104050B1 (en) * 2019-05-21 2020-04-24 오미혜 A composition for reducing NOx, and a method for reducing NOx
KR102259063B1 (en) * 2019-10-17 2021-06-02 오미혜 A composition for reducing NOx, and a method for reducing NOx

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100401996B1 (en) * 1998-12-24 2004-01-24 주식회사 포스코 Improved method of wet scrubbing of nitrogen oxides from flue gas
KR100374291B1 (en) * 2000-10-19 2003-03-03 한국동서발전(주) Method for reducing the content of nitrogen oxides in gas exhausted from combustion reactor

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