과산화수소 광분해를 이용한 선박 배가스 내 NO 산화흡수에 관한 연구

Air pollution associated with the $NO_x$ emission from the ship engines is becoming one of the major environmental concerns these days. As the regulations on ship pollutants are strengthened, the wet absorption method, for controlling complex pollutants in a confined space, has the advantage of simu...

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Published inClean Technology, 23(3) Vol. 23; no. 3; pp. 294 - 301
Main Authors 이재화(Jae-Hwa Lee), 김봉준(Bong-Jun Kim), 전수빈(Soo-Bin Jeon), 조준형(Joon-Hyung Cho), 강민경(Min-Kyoung Kang), 오광중(Kwang-Joong Oh)
Format Journal Article
LanguageKorean
Published 한국청정기술학회 2017
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ISSN1598-9712
2288-0690

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Abstract Air pollution associated with the $NO_x$ emission from the ship engines is becoming one of the major environmental concerns these days. As the regulations on ship pollutants are strengthened, the wet absorption method, for controlling complex pollutants in a confined space, has the advantage of simultaneously removing various pollutants, but the low solubility of nitrogen monoxide is drawback. In this study, for improving existing denitrification scrubber system, NO oxidation process by hydroxyl radical produced from irradiating UV light on $H_2O_2$ is suggested and the $H_2O_2$ decomposition rates and hydroxyl radical quantum yields were measured to find the optimum condition of $H_2O_2$ photolysis reaction. As a result, the optimum quantum yield and photolysis rate of $H_2O_2$ were 0.8798, $0.6mol\;h^{-1}$ at 8 W, 2 M condition, and oxidation efficiency of 1000 ppm NO gas was 40%. In batch system, NO removal efficiency has a range of 65.0 ~ 67.3% according to input gas concentration of 100 ~ 1500 ppm. This results indicate that the scrubber system using hydrogen peroxide photolysis can be applied as air pollution prevention facility of ship engines. 선박 배가스 오염물질에 대한 규제가 강화됨에 따라 한정적인 공간 내에 복합 오염물질을 제어하기 위한 기술로써 습식흡수법은 다양한 오염물질을 동시에 제거할 수 있는 장점을 가지고 있으나 일산화질소의 낮은 용해도로 인한 한계점을 가지고 있다. 따라서 본 연구에서는 일산화질소를 이산화질소로 산화시켜 용해도를 높임으로써 흡수효율을 증대시키는 방안으로 자외선-과산화수소 산화법을 적용하였다. 자외선을 투사하여 생성되는 수산화라디칼의 양자수율과 과산화수소의 광분해속도는 8 W, 2 M의 최적조건에서 각각 0.8798, $0.6mol\;h^{-1}$이며, 1000 ppm 일산화질소의 산화효율은 2 M 과산화수소, 체류시간 3 min의 최적조건에서 40%로 나타났다. 회분식 반응기에서 일산화질소 가스의 제거효율은 100, 300, 500, 1000, 1500 ppm으로 초기농도가 증가함에 따라 각각 65.0, 65.7, 66.4, 67.3, 68.1%로 제거효율이 증가하는 것으로 나타났다. 따라서 본 연구에서 제안하는 산화기술은 습식흡수공정과 연계를 통해 선박 후처리장치로 적용할 수 있다.
AbstractList 선박 배가스 오염물질에 대한 규제가 강화됨에 따라 한정적인 공간 내에 복합 오염물질을 제어하기 위한 기술로써 습식흡수법은 다양한 오염물질을 동시에 제거할 수 있는 장점을 가지고 있으나 일산화질소의 낮은 용해도로 인한 한계점을 가지고 있다. 따라서 본 연구에서는 일산화질소를 이산화질소로 산화시켜 용해도를 높임으로써 흡수효율을 증대시키는 방안으로 자외선-과산화수소 산화법을 적용하였다. 자외선을 투사하여 생성되는 수산화라디칼의 양자수율과 과산화수소의 광분해속도는 8 W, 2 M의 최적조건에서 각각 0.8798, 0.6 mol h-1이며, 1000 ppm 일산화질소의 산화효율은 2 M 과산화수소, 체류시간 3 min의 최적조건에서 40%로 나타났다. 회분식 반응기에서 일산화질소 가스의 제거효율은 100, 300, 500, 1000, 1500 ppm으로 초기농도가 증가함에 따라 각각 65.0, 65.7, 66.4, 67.3, 68.1%로 제거효율이 증가하는 것으로 나타났다. 따라서 본연구에서 제안하는 산화기술은 습식흡수공정과 연계를 통해 선박 후처리장치로 적용할 수 있다. Air pollution associated with the NOx emission from the ship engines is becoming one of the major environmental concerns these days. As the regulations on ship pollutants are strengthened, the wet absorption method, for controlling complex pollutants in a confined space, has the advantage of simultaneously removing various pollutants, but the low solubility of nitrogen monoxide is drawback. In this study, for improving existing denitrification scrubber system, NO oxidation process by hydroxyl radical produced from irradiating UV light on H2O2 is suggested and the H2O2 decomposition rates and hydroxyl radical quantum yields were measured to find the optimum condition of H2O2 photolysis reaction. As a result, the optimum quantum yield and photolysis rate of H2O2 were 0.8798, 0.6 mol h-1 at 8 W, 2 M condition, and oxidation efficiency of 1000 ppm NO gas was 40%. In batch system, NO removal efficiency has a range of 65.0 ~ 67.3% according to input gas concentration of 100 ~ 1500 ppm. This results indicate that the scrubber system using hydrogen peroxide photolysis can be applied as air pollution prevention facility of ship engines. KCI Citation Count: 0
Air pollution associated with the $NO_x$ emission from the ship engines is becoming one of the major environmental concerns these days. As the regulations on ship pollutants are strengthened, the wet absorption method, for controlling complex pollutants in a confined space, has the advantage of simultaneously removing various pollutants, but the low solubility of nitrogen monoxide is drawback. In this study, for improving existing denitrification scrubber system, NO oxidation process by hydroxyl radical produced from irradiating UV light on $H_2O_2$ is suggested and the $H_2O_2$ decomposition rates and hydroxyl radical quantum yields were measured to find the optimum condition of $H_2O_2$ photolysis reaction. As a result, the optimum quantum yield and photolysis rate of $H_2O_2$ were 0.8798, $0.6mol\;h^{-1}$ at 8 W, 2 M condition, and oxidation efficiency of 1000 ppm NO gas was 40%. In batch system, NO removal efficiency has a range of 65.0 ~ 67.3% according to input gas concentration of 100 ~ 1500 ppm. This results indicate that the scrubber system using hydrogen peroxide photolysis can be applied as air pollution prevention facility of ship engines. 선박 배가스 오염물질에 대한 규제가 강화됨에 따라 한정적인 공간 내에 복합 오염물질을 제어하기 위한 기술로써 습식흡수법은 다양한 오염물질을 동시에 제거할 수 있는 장점을 가지고 있으나 일산화질소의 낮은 용해도로 인한 한계점을 가지고 있다. 따라서 본 연구에서는 일산화질소를 이산화질소로 산화시켜 용해도를 높임으로써 흡수효율을 증대시키는 방안으로 자외선-과산화수소 산화법을 적용하였다. 자외선을 투사하여 생성되는 수산화라디칼의 양자수율과 과산화수소의 광분해속도는 8 W, 2 M의 최적조건에서 각각 0.8798, $0.6mol\;h^{-1}$이며, 1000 ppm 일산화질소의 산화효율은 2 M 과산화수소, 체류시간 3 min의 최적조건에서 40%로 나타났다. 회분식 반응기에서 일산화질소 가스의 제거효율은 100, 300, 500, 1000, 1500 ppm으로 초기농도가 증가함에 따라 각각 65.0, 65.7, 66.4, 67.3, 68.1%로 제거효율이 증가하는 것으로 나타났다. 따라서 본 연구에서 제안하는 산화기술은 습식흡수공정과 연계를 통해 선박 후처리장치로 적용할 수 있다.
Author 전수빈(Soo-Bin Jeon)
강민경(Min-Kyoung Kang)
이재화(Jae-Hwa Lee)
조준형(Joon-Hyung Cho)
오광중(Kwang-Joong Oh)
김봉준(Bong-Jun Kim)
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  fullname: 오광중(Kwang-Joong Oh)
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DocumentTitleAlternate Oxidation and Removal of NO Emission from Ship Using Hydrogen Peroxide Photolysis
DocumentTitle_FL Oxidation and Removal of NO Emission from Ship Using Hydrogen Peroxide Photolysis
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Keywords 광분해
Ship emission
NO 산화
Photolysis
선박 배가스
Hyrogen peroxide
과산화수소
NO oxidation
NO
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Snippet Air pollution associated with the $NO_x$ emission from the ship engines is becoming one of the major environmental concerns these days. As the regulations on...
선박 배가스 오염물질에 대한 규제가 강화됨에 따라 한정적인 공간 내에 복합 오염물질을 제어하기 위한 기술로써 습식흡수법은 다양한 오염물질을 동시에 제거할 수 있는 장점을 가지고 있으나 일산화질소의 낮은 용해도로 인한 한계점을 가지고 있다. 따라서 본 연구에서는 일산화질소를 이산화질소로...
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SubjectTerms 화학공학
Title 과산화수소 광분해를 이용한 선박 배가스 내 NO 산화흡수에 관한 연구
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