방사성 폐기물 소각공정을 위한 선택적 촉매 환원법 연구

이한수; 김인태; 정흥석; 안도희; 김종호; 양희성; 황재영; 김상환

Journal of the Korean Industrial and Engineering Chemistry, Vol.7, No.4, 670-678, August, 1996

Export Citation

방사성 폐기물 소각공정을 위한 선택적 촉매 환원법 연구

A Study on Selective Catalytic Reduction(SCR) for the Radioactive Waste Incineration Process

이한수, 김인태, 정흥석, 안도희, 김종호, 양희성, 황재영, 김상환

초록

방사성 폐기물 소각로의 배기가스 중에 포함되어 있는 NOx를 제거하기 위하여 선택적 촉매 환원법에 활용되는 촉매들의 특성을 조사하였다. 촉매는 V₂O₅, MoO₃, 그리고 SnO₂를 하니컴 형태의 TiO₂ 담체에 담지시켜 제조하였으며 촉매의 종류, 반응온도, feed의 조성, NH₃/NO 몰비의 영향 등이 반응특성에 미치는 영향을 실험실 규모의 반응기에서 조사하였다. 10% V₂O₅/TiO₂ 촉매가 350℃에서 94.4%의 높은 NO→N₂ 전환율을 보였으며 열적 안정성이 좋은 MoO₃의 첨가는 높은 전환율을 보이는 온도범위를 확장시켜 주었다.

The characterization of catalysts for the selective catalytic reduction(SCR) was investigated to remove NOx discharge from radioactive waste incinerator. The catalyst was prepared by impregnating V₂O₅, MoO₃, and SnO₂ on honeycomb shaped TiO₂. The effects of the type of catalysts, reaction temperature, feed composition, and mole ratio of NH₃/NO on the reaction characteristics were evaluated in a laboratory scale reactor. The 10% V₂O₅/TiO₂ catalyst showed the highest NO to N₂ conversion of 94.4% at 350℃ and the temperature range for higher conversion was broadened by adding thermally stable promoters, MoO₃.

[References]

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IAEA Technical REport No. 223, "Treatment of Low and Intermediate Level Solid Radioactive Wastes," IAEA, Vienna (1983)
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EPRI-NP-3250, "Radwaste Incinerator Experience," (1983)
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김준형, "방사성 폐기물 처리기술 개발 (VII)," KAERI-NEMAC/RR-144/94 (1994)
박원재, 이병수, 이승행, 김준형, 서용칠, "방사성 폐기물 소각시설의 현황 및 안전지침," 한국원자력학회, 27 (1995)
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Inomata M, Miyamoto A, Murakami Y, J. Catal., 62, 140 (1980)
Inomata M, Miyamoto A, Ui T, Kobayashi K, Murakami Y, Ind. Eng. Chem. Prod. Res. Dev., 21, 424 (1982)
Chen JP, Yang RT, J. Catal., 125 (1990)
Kasaoka S, Sasaoka E, Nanba H, Nippon Kagaku Kaishi, 486 (1994)
Shikada T, Fujimoto K, Chem. Lett., 77, 515 (1983)
Satsuma A, Hattori A, Mizutani K, Furuta A, Miyamoto A, Hattori T, Murakami Y, J. Phys. Chem., 93, 1484 (1989)

[1] EPRI-NP-3370, "Identification of Radwaste Sources and Reduction Techniques, Vol. II," (1984)

[2] IAEA Technical REport No. 223, "Treatment of Low and Intermediate Level Solid Radioactive Wastes," IAEA, Vienna (1983)

[3] IAEA Technical Report No. 360, "Status of Technology for Volume Reduction and Treatment of Low and Intermediate Level Solid Radioactive Waste," IAEA, Vienna (1994)

[4] 이건재, 신영준, "핵화학공학," 사단법인 한국원자력학회 (1989)

[5] EPRI-NP-3250, "Radwaste Incinerator Experience," (1983)

[6] Laser M, "Volume Reduction of Low Level Solid Radioactive Waste by Incineration and Compaction in the Federal Republic of Germany," Radioactive Waste Management and Nuclear Fuel Cycle, 7, 160-169 (1986)

[7] 김준형, "방사성 폐기물 처리기술 개발 (VII)," KAERI-NEMAC/RR-144/94 (1994)

[8] 박원재, 이병수, 이승행, 김준형, 서용칠, "방사성 폐기물 소각시설의 현황 및 안전지침," 한국원자력학회, 27 (1995)

[9] IAEA Safety Series No. 108, "Design and Operation of Radioactive Waste Incineration Facilities," IAEA, Vienna (1992)

[10] IAEA Technical Report No. 302, "Treatment of Off-gas from Radioactive Waste Incinerator," IAEA, Vienna (1989)

[11] Romano FJ, Baukal CE, "How NOx Emissions Are Effected When Using Oxygen Enrichment," Incineration Conference at Knoxville, Tennessee, 589-596 (1991)

[12] Whiting KJ, Pardell JM, "How Can Incineration Processes Meet the Stringent European Requirements for NOx Emissions," Incineration Conference at Albuquerque, p. 109-114 (1992)

[13] 신현동, 유영돈, 김진국, "저공해 연소를 위한 초희박 혼합기 연소시스템의 개발," 한국과학기술원 (1991)

[14] Morikawa, Bull. Chem. Soc. Jpn., 55, 2254 (1982)

[15] Inomata M, Miyamoto A, Murakami Y, J. Catal., 62, 140 (1980)

[16] Inomata M, Miyamoto A, Ui T, Kobayashi K, Murakami Y, Ind. Eng. Chem. Prod. Res. Dev., 21, 424 (1982)

[17] Chen JP, Yang RT, J. Catal., 125 (1990)

[18] Kasaoka S, Sasaoka E, Nanba H, Nippon Kagaku Kaishi, 486 (1994)

[19] Shikada T, Fujimoto K, Chem. Lett., 77, 515 (1983)

[20] Satsuma A, Hattori A, Mizutani K, Furuta A, Miyamoto A, Hattori T, Murakami Y, J. Phys. Chem., 93, 1484 (1989)