Nitrous Oxide Reduction Combustion System Using Coaxial combustor

The present invention relates to a nitrous oxide reducing combustion apparatus using a coaxial combustor and, more specifically, to a nitrous oxide reducing combustion apparatus using a coaxial combustor, which can reduce harmful gases included in an exhaust gas by generating a high temperature meth...

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Bibliographische Detailangaben
Hauptverfasser: SUNGHWAN YOON, JAE GEUN SEO, SI YOUNG JIN
Format: Patent
Sprache:eng ; kor
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Zusammenfassung:The present invention relates to a nitrous oxide reducing combustion apparatus using a coaxial combustor and, more specifically, to a nitrous oxide reducing combustion apparatus using a coaxial combustor, which can reduce harmful gases included in an exhaust gas by generating a high temperature methane flame in the coaxial combustor to convert nitrous oxide, included in the exhaust gas, into nitrogen oxide such as nitrogen monoxide, nitrogen dioxide, etc. through direct heating-type pyrolysis and once again, converting the converted nitrogen oxide into nitrogen and water by means of selective catalytic reduction. To this end, the present invention provides a nitrous oxide reducing combustion apparatus using the coaxial combustor, which includes the coaxial combustor (10) provided with an inner nozzle (12) and an outer nozzle (14), wherein methane and oxygen are introduced into the inner nozzle and the exhaust gas including the nitrous oxide is introduced into the outer nozzle to flow to the outside of the inner nozzle. The coaxial combustor (10) generates a methane flame by combusting the methane and oxygen introduced through the inner nozzle and converts the nitrous oxide, included in the exhaust gas introduced through the outer nozzle, into nitrogen oxide including nitrogen monoxide or nitrogen dioxide through direct heating-type pyrolysis using the generated methane flame. 본 발명은 동축연소기를 이용한 아산화질소 저감 연소장치에 관한 것이다. 보다 상세하게는, 동축연소기에서 고온의 메탄화염을 생성시켜 배기가스에 포함된 아산화질소를 직접 가열 방식으로 열분해하여 일산화질소 또는 이산화질소 등의 질소산화물을 전환시키고, 전환된 질소산화물을 다시 선택적환원촉매에 의해 질소와 물로 전환하여 배기가스에 포함된 유해가스를 저감시킬 수 있는 동축연소기를 이용한 아산화질소 저감 연소장치에 관한 것이다. 이를 위해 본 발명은 내부노즐(12)과 외부노즐(14)이 구비되며, 내부노즐에는 메탄과 산소가 유입되고, 외부노즐에는 아산화질소가 포함된 배기가스가 유입되어 내부노즐의 외측으로 유동하는 동축연소기(10)를 포함하고, 동축연소기(10)는 내부노즐을 통해 유입된 메탄과 산소를 연소하여 메탄화염을 생성시키고, 생성된 메탄화염으로 외부노즐을 통해 유입된 배기가스에 포함된 아산화질소를 직접 가열 방식으로 열분해하여 일산화질소 또는 이산화질소를 포함한 질소산화물로 전환시키는 것을 포함하는 동축연소기를 이용한 아산화질소 저감 연소장치를 제공한다.