Development of DOC and Urea-SCR Aftertreatment System for Reducing Exhaust Emissions in a LPG Steam Boiler

≸⓸ 䚐ạ⫼⫤㜈㫴⏼㛨⫵䚍䟀 ḩ┍䚍㍔␴䟀 ⊰ⱬ㬅 2012

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Development of DOC and Urea-SCR Aftertreatment System

for Reducing Exhaust Emissions in a LPG Steam Boiler

Myung-whan Bae

, Byeong-ho Song

, Woo-cheol Kang

and Jae-ok Bae

⽎ 㡆ῂ㠦㍲⓪ ڧګڢ㯳₆⽊㧒⩂㦮کڪڳ⺆㿲ⶒ㦚 㩖Ṧ㔲䋺₆ 㥚䟊 㩗㣿䟞▮ 㣪㏢ڈڮڞڭ⹮㦧₆ 䤚㻮Ⰲ 㔲㓺䎲㠦 کڪڳ ⺆㿲 ⶒ 㭧㦮کڪ کڪ⯒ ڍ⪲ ⼖䢮㔲䋺⓪ڟڪڞ 䤚㻮Ⰲ 㔲㓺䎲㦚 㿪Ṗ⪲ ㍺䂮䞮㡂 㣪㏢⿚㌂ 㩚䤚㦮 کڪڳ⺆㿲ⶒ ⹥ ⺆₆㡾☚⯒ ⽊㧒 ⩂ ⿖䞮㠦 ➆⧒ 䁷㩫䞮ἶ ṗ ⽊㧒⩂ ⿖䞮㠦 ➆⯎ ╏⨟゚ 㣪㏢⿚㌂㥾ڇ ڇ ڇ کڣڎ 㔂Ⱃ ⹥ کڪڳ 䢮㤦䣾㥾㦚 ἶ㺆䞮㡂ڟڪڞ ⹥ 㣪㏢ڈڮڞڭ ⹮㦧₆ 䤚㻮Ⰲ 㔲㓺䎲㦚 ῂ㿫䞮₆ 㥚䞲 ₆㽞㧦⬢⪲㍲ 䢲㣿䞮⓪ ộ㦚 ⳿㩗㦒⪲ 䞲┺ډ ⽎ 㡆ῂ㦮 ἆὒ㠦 㧞㠊㍲ 㣪㏢⿚㌂㥾㧊 ⏨㞚㰞㑮⪳ کڪڳ 䢮㤦䣾㥾㦖 ⏨㞚㪢㰖Ⱒ ⺆₆ὖ㠦㍲ ⺆㿲♮⓪ڇ کڣڎ 㔂Ⱃ⨟㧊 Ⱔ㞚㰚┺ ⡦䞲 ⹮㦧₆⌊㦮 㡾☚㠦 ➆⧒㍲☚ 㣪㏢⿚㌂㥾 ⹥ډ ڇ کڪڳ 䢮㤦䣾㥾㧊 ㌗╏䧞 Ⱔ㧊 㹾㧊Ṗ ⋮₆ ➢ⶎ㠦ڇ کڪڳ 䢮 㤦䣾㥾ڇ کڣڎ 㔂Ⱃ⨟ ⹥ ⹮㦧㡾☚⯒ 㫆䞿䟊㍲ 㫛䞿㩗㦒⪲ ☯㔲㠦 ἶ⩺䞮㡂 㣪㏢⿚㌂㥾㦚 ⽊㧒⩂ ⿖䞮 ڌڋڋڇ ړڋڇ ڑڋ ⹥ 㧒 ἓ㤆㠦 ⹥ 㦒⪲ 㩫䞮㡖ἶ 㧊 ➢ 㾲㫛㩗㦒⪲ ⹲㌳♲ ڏڋڀ ڌړڇ ڍڋڇ ڌڔ ڌڏ ۈۂڊۈۄۉ ڇ کڣڎ 㔂Ⱃ⨟㦖 ڌڎډڔڍڇ ڔډڍڔڇ ڌړډڎڐ ⹥ ڍڋډڋڏ ۋۋۈ⪲ ⋮䌖⌂ἶڇ کڪڳ 䢮㤦䣾㥾㦖 ړڔڀڇ ڔڋڀڇ ڔڑڀ ⹥ ڌڋڋڀ⪲ ⋮䌖⌂┺ډ 䤚㻮Ⰲ 㔲㓺䎲㦚 ㍺䂮䞮㡂 䐋ὒ㔲䆆㦚 ἓ㤆㠦 ザ⯎ ⹮㦧 㠦 㦮䟊 㣪㏢ ⹮㦧₆ 㩚┾ ڟڪڞ ڮڞڭ ڃڡڼێۏ ڮڞڭ ڭۀڼھۏۄۊۉڄ ڈڮڞڭ 㠦㍲ 䁷㩫䞲 کڪڍ ⺆㿲ⶒ Ṩὒ 䤚┾㠦㍲ 䁷㩫䞲 کڪڳ ⺆㿲ⶒ㦮 Ṩ㦖 㹾㧊Ṗ Ⱔ㧊 ⌂┺ Ⲓ㩖ډ کڪڍ ⺆㿲ⶒ Ṩ㧊 ⿖䞮 ڌڋڋڀ 㠦㍲⓪ڏ ۋۋۈ㠦㍲ڌڋ ۋۋۈ㦒⪲ ⿖䞮ڇ ړڋڀ㠦㍲⓪ڑ ۋۋۈ㠦㍲ڍڋ ۋۋۈ㦒⪲ ⿖䞮ڇ ڑڋڀ㠦㍲⓪ ڌڎ ۋۋۈ㠦㍲ڍڋ ۋۋۈ㦒⪲ ⿖䞮ڇ 㠦㍲⓪ 㠦㍲ 㦒⪲ 䁷㩫♮㠞ἶ ڏڋڀ ڋ ۋۋۈ ڋ ۋۋۈ ڇ کڪڳ⺆㿲ⶒ 㩖Ṧ㦖 ⿖䞮 ڌڋڋڀ㦮 ἓ㤆㠦ڌڐ ۋۋۈ㠦㍲ ڒ ۋۋۈ㦒⪲ ⿖䞮ڇ ړڋڀ 㦮 ἓ㤆㠦ڌڐ ۋۋۈ㠦㍲ ڒ ۋۋۈ㦒⪲ ⿖䞮ڇ ڑڋڀ㦮 ἓ㤆㠦 ڒ ۋۋۈ㠦㍲ ڍ ۋۋۈ㦒⪲ ⿖䞮ڇ ڏڋڀ㠦㍲⓪ ڋ ۋۋۈ㠦㍲ ڋ ۋۋۈ㦒⪲ 䁷 㩫♮㠊 کڪڍ ⺆㿲ⶒ ㌳㎇ὒ کڪڳ ⺆㿲ⶒ 㩖Ṧ㠦 ڟڪڞ 䤚㻮Ⰲ 㔲㓺䎲㦮 㡃䞶㧊 㞚㭒 䋒㦚 㞢㞮┺ډ

Fig. 1 Schematic diagram of experimental system

Fig. 2 Comparisons of NOX emissions in front and at the back of SCR reactor, and NH3 slip at the back of SCR reactor relative to boiler load after urea injection

⮏ష᪏㔣

[1] M. W. Bae,뺵Development of SCR Aftertreatment System for Reducing Nitrogen Oxides Emissions(NOx) in LNG Ship’s Boilers (Development of Urea-SCR Aftertreatment System for Reducing Nitrogen Oxides(NOx) Emissions in a LPG Steam Boiler with BSU Class),뺶 Final Report of Materials and Components Technology Development Project(Ministry of Knowledge Economy), pp. 152-291, 2011.

[2] M. W. Bae, W. C. Kang and B. H. Song, 뺵Reduction Characteristics of Nitrogen Oxides Emissions in LPG Steam Boiler with a Urea-SCR Reactor,뺶 Proceedings of KSAE 2011 Annual Conference and Exhibition(KSAE11-A0041), pp. 224-228, 2011.

+ ⺆ⳛ䢮 ἓ㌗╖䞯ᾦ ₆Ἒ㍺Ἒ䞯ὒڃ ڄڇ ڠۈڼۄۇڕ ۈےڽڼۀڛۂۉېډڼھډۆۍڇ ۏۀۇڕ ڋڐڐڄڒڒڍڈڌڑڎڌ ἓ㌗╖䞯ᾦ ╖䞯㤦 ₆Ἒ䟃ὋὋ䞯⿖ ڌ ⿖㌆╖䞯ᾦ ╖䞯㤦 ₆ἚὋ䞯ὒ ڍ YWXY≸⓸G䚐ạ⫼⫤㜈㫴⏼㛨⫵䚍䟀Gḩ┍䚍㍔␴䟀⊰ⱬ㬅

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