본문 바로가기
HOME> 논문 > 논문 검색상세

논문 상세정보

질소산화물 제거용 상용 $V_2O_5-WO_3/TiO_2$ SCR 폐 촉매의 재생 효과 고찰
A Study on the Regeneration Effects of Commercial $V_2O_5-WO_3/TiO_2$ SCR Catalyst for the Reduction of NOx

박해경   (한서대학교 촉매공정기술연구원UU0001506  );
  • 초록

    소각장 off gas에 장기간 노출이 되어 활성이 저하된 상용 $V_2O_5-WO_3/TiO_2$ aged 촉매를 물리화학적 방법으로 재생 처리를 수행한 후, 재생 처리에 따른 촉매의 물성 변화를 확인하고 이에 따른 촉매 활성변화를 고찰하였다. 촉매의 특성분석은 XRD(x-ray diffractometer), BET, POROSIMETER, EDX(energy dispersive x-ray spectrometer), ICP(inductively coupled plasma), TGA(thermogravimetric Analyze,), SEM(scanning electron microscopy)등을 이용하여 수행하였고 NOx 전환반응실험은 소각장 off gas를 모사하여 $NH_3$ 에 의한 SCR 반응을 통해 수행하였다. 본 연구에서 수행된 재생처리 방법 중, 열처리 방법으로 재생처리를 수행 할 경우 fresh 촉매환성의 95% 이상을 회복하였으며, 화학적 재생 처리 방법으로는 산성용액의 경우는 pH가 5인 용액으로 재생 처리된 촉매가, 염기성 용액의 경우는 pH가 12인 용액으로 재생 처리된 촉매가 fresh 촉매활성의 90% 이상의 촉매 활성을 회복 하였다. 촉매 특성 분석 결과, 상기와 같은 방법으로 재생 처리된 촉매의 경우 비표면적은 fresh 촉매의 $85{\sim}95%$ 수준으로 회복 되었으며, aged 촉매 표면에 축적되어 있던 촉매 비활성 물질로 잘 알려진 황(S)이나 칼슘(Ca)등은 최대 99%이상 제거 되었다. Aged 촉매 표면상의 인(P), 크롬(Cr), 아연(Zn) 등과 같은 중금속의 경우는 최대 95% 이상 제거 되었으나 납(Pb)의 경우는 제거율이 $10{\sim}30%$ 수준으로 매우 미흡한 것으로 나타났다.


    The commercial $V_2O_5-WO_3/TiO_2$ catalysts which had been exposed to the off gas from incinerator for a long time were regenerated by physical and chemical treatment. The catalytic properties and NOx conversion reactivity of those catalysts were examined by analysis equipment and NOx conversion experiment. The characterization of the catalysts were performed by XRD(x-ray diffractometer), BET, POROSIMETER, EDX(energy dispersive x-ray spectrometer), ICP(inductively coupled plasma), TGA(thermogravimetric analyzer) and SEM (scanning electron microscopy). NOx conversion experiment were performed with simulated off gas of the incinerator and $NH_3$ was used as a reductant of SCR reaction. Among the regeneration treatment methods which were applied to regenerate the aged catalysts in this study, it showed that the heat treatment method had excellent regeneration effect on the catalytic performance for NOx conversion. The catalytic performance of the regenerated catalysts with heat treatment method were recovered over than 95% of that of fresh catalyst. For the regenerated catalysts with the acid solution(pH 5) and the alkali solution(pH 12), the catalytic performance were recovered over than 90% of that of fresh catalyst. From the characterization results of the regenerated catalysts, the specific surface area was recovered in the range of $85{\sim}95%$ of that of fresh catalyst. S and Ca element, which are well known as the deactivation materials for the SCR catalysts, accumulated on the aged catalyst surface were removed up to maximum 99%. Among the P, Cr, Zn and Pb elements accumulated on the aged catalyst surface, P, Cr and Zn element were removed up to 95%. But the Pb element were removed in the range of $10{\sim}30%$ of that of fresh catalyst.


  • 주제어

    촉매재생 .   SCR 촉매 .   질소산화물.  

  • 참고문헌 (25)

    1. Study of thennal deactivation of a de-NOx commercial catalyst , Isabella, N.;Lorenzo, D.;Luca, L.;Elio, G.;Pia, F. , Applied catalysis : B Environmental / v.35,pp.31-42,
    2. VHC Verlagsiege-sellschaft;Handbook of Ileterogeneous Catalysis , Lox, E.S.J.;Engler, B.H.;Engler, G.(ed.);Knoziger, H.(ed.);Weikamp, J.(ed.) , / v.,pp.,
    3. Catalytic reduction of nitrogen oxides-a review on the fundamentals and technology , Bosch, H.;Janssen, F. , Catalysis Today / v.2,pp.369-532,
    4. CuO/NiO monolithic catalysts for NOx removal from mitrie acid plant flue gas , Blanco, J.;Avila, P.;Suares, S.;Yates, M.;Martin, J.A.;Marzo, L.;Knapp, C. , Chem. Eng. J. / v.97,pp.1-9,
    5. Control of NOx emissions from diesel engine by selective catalystic reduction (SCR) with urea , Baik, J.H.;Yim, S.D.;Nam, I.S.;Mok, Y.S.;Lee, J.H.;Cha, B.K.;Oh, S.H. , Topics in Catal. / v.30/31,pp.37-41,
    6. Selective catalytic reduction of nitrogen oxide by combining a non-thermal plasma and a $V_2O_5-WO_3/TiO_2$ catalysts , Broer, S.;Hammer, J. , Applied catalysis B:Environ / v.28,pp.101-111,
    7. Modelling of selective catalytic DcNOx reactors-strategy for replacing deactivated catalyst elements , Lefers, J.H.;Ladder, P.;Enoch, G.D. , Chem. Eng. Tech. / v.14,pp.192-200,
    8. Mechanism of the reaction of NO and $NH_3$ on vanadium oxide catalyst in the presence of oxygen under the dilute gas condition , lnomata, M.;Miyamoto, A.;Murakami, Y. , J. Catal. / v.62,pp.140-148,
    9. Selective reduction of nitrogen oxide by hydrocarbons under leanburn conditions using supported platinum group metal , Tanaka, T.;Okuhara, T.;Misono, M. , Catalyst Today / v.26,pp.185-206,
    10. Reactivity of $V_2O_5-WO_3/TiO_2$ deNOx catalysts by transient methods , Lietti, L. , Applied catalysis B : Environmental / v.10,pp.281-297,
    11. Structures of supported vanadium oxide catalysts. I. Vanadium(V) oxide/titanium dioxide (anatasc), vanadium(V) oxide/titanium dioxide (rutile), and vanadium (V) oxide/titanium dioxide (mixture of anatase with rutile) , Inomata, M.;Mari, K.;Myiamoto, A.;Ui, T.;Murakami, Y. , J. Phys. Chem. / v.87,pp.754-761,
    12. Selective catalytic reduction of NOx by NH3 from stationary sources , Forzatti, P.;Lietti, L. , La Chimicae I'indastria / v.78,pp.685-692,
    13. Control of NOx emissions through combustion modifications for reheating furnaces in steel plants , Teng, H.;Huang, T.S. , Fuel / v.75,pp.149-156,
    14. Deactivating effects of lead on the selective catalytic reduction of nitric oxide with ammonia over a $V_2O_5/WO_3/TiO_2$ catalyst for waste incineration applications , Khodayari, R. , Ind. Eng. Chem. Res / v.37,pp.1196-1202,
    15. $WO_3$ and $MoO_3$/ addition effect on $V_2O_5/TiO_2$ as promotors for re-moval of NOx and SOX from stationary sources , Shin, H.S.;Lim, S.Y.;Chotmg, S.J. , Korean Journal of Chemical Engineering / v.11,pp.254-260,
    16. Regeneration of commercial seR catalysts by washing and sulphation effect of sulphate groups on the activity , Raziyeh, K.;C.U.;lngemar, O. , Applied catalysis B Environmental / v.33,pp.277-291,
    17. Role of $WO_3$ in mixed $V_2O_5-WO_3/TiO_2$ catalysts for selective catalytic reduction of nitric oxide with ammonia , Chen, J.P.;Yang, R.T. , Applied catalysis A Gen. / v.80,pp.135-148,
    18. Surtace and catalytic properties of vanadiatitania and tungsta-titania systems in the selective catalytic reduction of nitrogen oxides , Lie, L.;Svachula, J.;Porzatti, P.;Busca, G.;Ramis, G.;Bregani, F. , Catalysis Today / v.17,pp.131-139,
    19. Comparison of $TiO_2$-base oxide catalysts for the selective catalytic reduction of NO effect of aging the vanadium precursor solution , Nicolaos, V.E.;Donovan, A.P.;Panagiotis. G.S. , Applied catalysis : B Environmental / v.23,pp.123-134,
    20. A study on the deactivation of commercial SCR catalyst ($V_2O_5-WO_3/TiO_2$) for thc reduction of NOx , Lim, J.S.;Kim, T.W.;Park, H.K.;Yoo, M.S. , Korean society of environmental engineers / v.26,pp.1125-1130,
    21. Theoretical and experimental study of the interaction between NOx reduction and $SO_2$ oxidation over DeNOx-SCR catalysts , Carlo, O.;Alessandra, B.;Pia, F.;Jiri, S.;Enrico, T.;Fiorenza, B.;Aldo, B. , Ctalysis today / v.27,pp.15-21,
    22. A study on the Deactivation and Regeneration of SCR Catalyst Used in Caprolactam Process , Moon, S.H.;Jeon, S.G.;Roo, W.H. , Korean society of environmental engineers / v.26,pp.270-276,
    23. Sulfur Poisoning and Tolerance of SCR Catalyst to remove NO by $NH_3$ , Ham, S.W.;Soh, B.W.;Nam, I.S. , J. Korea Ind. Eng. Chem. / v.15,pp.373-385,
    24. Regeneration of commercial $TiO_2-V_2O_5-WO_3$ SCR catalysts used in bio fuel plants , Raziyeh, K.;C.U.;Ingemar, O. , Applied catalysis B : Environmental / v.30,pp.87-99,
    25. Single and combined deactivation effect of akakle metals and HCI on commercial SCR catalysts , Lisi, L.;Lasorella, G.;Malloggi, S.;Russo, G. , Applied catalysis B : Environmental / v.50,pp.251-258,
  • 이 논문을 인용한 문헌 (2)

    1. Moon, Seung-Hyun ; Lee, Seung-Jae ; Ryu, In-Soo 2010. "A Study on the Regeneration of SCR Catalyst Deactivated by Unburned Carbon Deposition" 대한환경공학회지 = Journal of Korean Society of Environmental Engineers, 32(10): 928~935     
    2. Choi, Kang-Yong ; Park, Hea-Kyung 2010. "A Study on the Effectiveness of Remanufacturing Technology for the Catalyzed Diesel Particulate Filter-trap(DPF) Deactivated by Diesel Exhaust Gas" 대한환경공학회지 = Journal of Korean Society of Environmental Engineers, 32(10): 957~964     

 저자의 다른 논문

  • 박해경 (12)

    1. 1999 "Thermal catalytic de-NOX 공정에서 첨가제가 촉매의 활성에 미치는 영향에 관한 연구" 한국대기환경학회지 = Journal of Korean Society for Atmospheric Environment 15 (3): 249~255    
    2. 2005 "소각장 SCR 공정에서 사용되는 상용 $V_2O_5-WO_3/TiO_2$ 촉매의 재제조에 관한 연구" 대한환경공학회지 = Journal of Korean Society of Environmental Engineers 27 (9): 970~977    
    3. 2008 "유화제 종류에 의한 Water/Oil 에멀젼 연료의 유화 안정성" 한국유화학회지 = Journal of oil & applied science 25 (3): 395~403    
    4. 2009 "사용후 가솔린 자동차 삼원촉매의 재제조 효과 고찰" 공업화학 = Applied chemistry for engineering 20 (4): 430~436    
    5. 2009 "폐삼원촉매의 재제조에 관한 연구" 청정기술 = Clean technology 15 (3): 147~153    
    6. 2011 "비활성화된 상용 디젤 산화 촉매의 소형 디젤 기관에서 CVS-75 모드를 이용한 재제조에 관한 연구" 한국분말야금학회지 = Journal of Korean powder metallurgy institute 18 (6): 517~525    
    7. 2012 "상용 탈질 SCR 폐촉매의 현장 재생 효과 고찰" 대한환경공학회지 = Journal of Korean Society of Environmental Engineers 34 (10): 664~670    
    8. 2012 "Tier 3 규제 대응을 위한 선박용 에멀젼 연료 적용성 연구" 대한환경공학회지 = Journal of Korean Society of Environmental Engineers 34 (10): 671~677    
    9. 2013 "특정용제 Target 형 활성금속첨착 활성탄소섬유의 개발(II)" 대한환경공학회지 = Journal of Korean Society of Environmental Engineers 35 (7): 472~478    
    10. 2016 "저온영역에서 메탈폼에 코팅된 V2O5-Sb2O3/TiO2 SCR 촉매의 NOx 저감성능에 미치는 SO2 영향에 관한 연구" 청정기술 = Clean technology 22 (2): 132~138    

 활용도 분석

  • 상세보기

    amChart 영역
  • 원문보기

    amChart 영역

원문보기

무료다운로드
  • NDSL :
  • 대한환경공학회 : 저널
유료다운로드

유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.

원문복사신청을 하시면, 일부 해외 인쇄학술지의 경우 외국학술지지원센터(FRIC)에서
무료 원문복사 서비스를 제공합니다.

NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.

이 논문과 함께 이용한 콘텐츠
이 논문과 함께 출판된 논문 + 더보기