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Received February 22, 2019
Accepted May 17, 2019
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순환 유동층 보일러에서 석탄 연소 시 Borax Solution이 연소 배가스중 미세먼지 저감에 미치는 영향
The Effect of Borax Solution on the Reduction of Fine Particles in Flue Gas at a Commercial Circulating Fluidized-bed Boiler Firing Bituminous Coal
Jae Hyeok Park
Dong-Ho Lee
Dal-Hee Bae
Yu Jin Choi
Hwan-Woo Ryu1
Ji-Bong Kim2
Keun Hee Han†
Dowon Shun†
한국에너지기술연구원 온실가스연구실, 34101 대전광역시 유성구 가정로 152 1상명이엔텍(주), 54588 전라북도 익산시 석암로9길 45-14 2삼양사(주), 22826 인천광역시 서구 백범로 726
Greenhouse Gas Laboratory, Korea Institute of Energy Research, 152, Gajeong-Ro, Yuseong-Gu, Daejeon, 34101, Korea 1SangMyung ENTech, 45-14, Seogam-ro 9-gil, Iksan-si, Jeollabuk-do, 54588, Korea 2Samyang Corporation, 726, Baekbeom-ro, Seo-gu, Incheon, 22826, Korea
heehan@kier.re.kr
Korean Chemical Engineering Research, August 2019, 57(4), 492-500(9), 10.9713/kcer.2019.57.4.492 Epub 2 August 2019
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Abstract
본 연구에서는 9.2 MWe의 상용규모 순환유동층 보일러에서 화학첨가제 사용에 따른 미세입자 저감에 대한 영향을 확인하였다. 또한 화력 발전소에서 화석연료의 연소 중 발생하는 미세입자를 포집하기 위하여 간단하고 효과적인 포집설비를 개발하였다. 연소 배가스 중 PM 10이하의 입자를 감소시키기 위하여 화학첨가제를 사용하였으며, 사용한 화학첨가제는 borax solution을 사용하였다. 포집된 미세입자 중 PM 10이하의 입자 거동을 확인하기 위하여 입도분석기와 SEM 분석을 통해 확인하였다. Borax solution은 배가스중에 용융된 미네랄을 흡수하여 미세입자를 성장시키는 경향이 있는 것을 알 수 있었다. 결과적으로 borax solution을 사용함으로써 10 μm 이하의 미세입자가 감소되었음을 확인할 수 있었다.
In this study, the effect of chemical additives on the reduction of fine particles was identified in 9.2 MWe commercial scale circulating fluidized bed boiler firing bituminous coal. Futhermore, a simple and effective method of fine particle collection has been developed to collect the fine particles of the boiler during fossil fuel combustion. Chemical additives were used to reduce particles below 10 PM in the flue gas, and borax solution was used as a chemical additive. In order to identify the particle behavior of PM 10 or less among the collected fine particles, it was analyzed through particle size analyzer and SEM analysis. The Borax solution tends to absorb molten mineral in the flue gas and make fine particles grow. As a result, it was analyzed that particles smaller than 10 μm were reduced by using borax solution.
Keywords
References
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CaneghemJV, Greef JD, Chantal B, Carlo V, Journal of Cleaner Production, 112(5), 4452-4460(2016).
Frigge L, Strohle J, Epple B, Fuel, 201, 105 (2017)
Ren XH, Sun R, Chi HH, Meng XX, Li YP, Levendis YA, Fuel, 200, 37 (2017)
Park HS, Lee DA, Yang JG, Jang SG, Kim HB, Kim DS, Journal of Korean Society for Atmospheric Environment, 34(4), 534-541(2018).
Ministry of Environment (MOE), “It Looks if You Know Right Away. Fine Dust, What the Hell ?,” Administrative publication registration number 11-1480000-001435-01, 5-6(2016).
Jang KW, Kim HC, Lee YM, Song DJ, Jung N, Kim SK, Hong JH, Lee SJ, Han JS, Journal of Korean Society for Atmospheric Environment, 27(5), 485-493 (2011).
Han SI, Korean Chem. Eng. Res., 56(3), 356 (2018)
Han S, Rutledge GC, Chem. Eng. Sci., 123, 557 (2015)
Ju YW, Oh GY, Korean J. Chem. Eng., 34(10), 2731 (2017)
Kim BC, Yamamoto T, Byun YS, Kim YH, Korean J. Chem. Eng., 27(1), 328 (2010)
Gohlke O, Weber T, Seguin P, Laborel Y, Waste Management, 30(7), 1348 (2010)
Verma SK, Sinha SL, Chandraker DK, Pollutants from Energy Sources, 37-51(2018).
Lee CY, Kim SH, Chung JD, Journal of KSWM, 35(7), 640-646(2018).
Lee CY, Kim SH, Chung JD, Journal of KSWM, 35(8), 754-761(2018).
Lee DH, Park JH, Hwang Y, Bae DH, Han KH, Kim JR, Shim TE, Shun D, Powder Technol., 343, 747 (2019)
Park JH, Lee DH, Han KH, Shin JS, Bae DH, Shim TE, Lee JH, Shun D, Fuel, 236, 792 (2019)
Athika W, Vanchai S, Jay GS, Prinya C, Engineering and Applied Science Research, 45(2), 89-94(2018).
Oh MH, “Composition of Additive for Fuel,” Korea Patent, 0761065(2007).
