Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Low-Temperature Thermal Decomposition of Industrial N-Hexane and Benzene Vapors

산업 발생 노르말헥산과 벤젠 증기의 저온 분해

  • Jo Wan-Kuen (Department of Environmental Engineering, Kyungpook National University) ;
  • Lee Joon-Yeob (Department of Environmental Engineering, Kyungpook National University) ;
  • Kang Jung-Hwan (Department of Environmental Engineering, Kyungpook National University) ;
  • Shin Seung-Ho (Department of Environmental Engineering, Kyungpook National University) ;
  • Kwon Ki-Dong (Department of Environmental Engineering, Kyungpook National University) ;
  • Kim Mo-Geun (Gyeongsangbukdo Government Public Institute of Health and Environment, Department of Air Conservation)
  • 조완근 (경북대학교 환경공학과) ;
  • 이준엽 (경북대학교 환경공학과) ;
  • 강정환 (경북대학교 환경공학과) ;
  • 신승호 (경북대학교 환경공학과) ;
  • 권기동 (경북대학교 환경공학과) ;
  • 김모근 (경상북도보건환경연구원 대기보전과)
  • Published : 2006.07.01
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Abstract

Present study evaluated the low-temperature destruction of n-hexane and benzene using mesh-type transition-metal platinum(Pt)/stainless steel(SS) catalyst. The parameters tested for the evaluation of catalytic destruction efficiencies of the two volatile organic compounds(VOC) included input concentration, reaction time, reaction temperature, and surface area of catalyst. It was found that the input concentration affected the destruction efficiencies of n-hexane and benzene, but that this input-concentration effect depended upon VOC type. The destruction efficiencies increased as the reaction time increased, but they were similar between two reaction times for benzene(50 and 60 sec), thereby suggesting that high temperatures are not always proper for thermal destruction of VOCs, when considering the destruction efficiency and operation costs of thermal catalytic system together. Similar to the effects of the input concentration on destruction efficiency of VOCs, the reaction temperature influenced the destruction efficiencies of n-hexane and benzene, but this temperature effect depended upon VOC type. As expected, the destruction efficiencies of n-hexane increased as the surface area of catalyst, but for benzene, the increase rate was not significant, thereby suggesting that similar to the effects of the re- action temperature on destruction efficiency of VOCs, high catalyst surface areas are not always proper for economical thermal destruction of VOCs. Depending upon the inlet concentrations and reaction temperatures, almost 100% of both n-hexane and benzene could be destructed, The current results also suggested that when applying the mesh type transition Metal Pt/SS catalyst for the better catalytic pyrolysis of VOC, VOC type should be considered, along with reaction temperature, surface area of catalyst, reaction time and input concentration.

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References

  1. Veulemans, H., E. V. Vlem, H. Janssens, R. Nasschelein and A Leplat, 1982, Experimental human exposure to n-Hexane, Int. Arch. Occup, Environ. Health, 49, 251-263 https://doi.org/10.1007/BF00377934
  2. Malek, R. F., J. M. Daisey and B. S. Cohen, 1986, The effect of aerosol on estimates of inhalation exposure to airborne styrene, Am. Ind. Hyg. Assoc. J., 47, 524-529 https://doi.org/10.1080/15298668691390160
  3. McDougal, J. N., G. W. Jepson, H. J. Clewell ill, M. L. Gargas and M. E. Andersen, 1990, Dermal absorption of organic chemical vapors in rats and humans, Fund. Appl. Toxicol., 14, 299-308 https://doi.org/10.1016/0272-0590(90)90209-3
  4. (사) 한국여성노동자회협의회, 1998, 전자업종 여성노동자들의 유기용제 사용과 건강 실태 조사, http://www.kwwnet.org/data/updata/9870709-0.html
  5. 인터넷 한겨레, 2005, 01.16, 출국 다발성 신경장애 태국 근로자 재입국 추진
  6. Karakaya, A, B. Yiicesoy, A Yiicel, N. Erdem, I. Ates, H, U. Sabir and I. Turgut, 1999, Proliferative response of peripheral blood lymphocytes and lymphocyte subpopulations in n-Hexane, toluene, and methyl ethyl ketone co-exposed workers, Environmental Toxicology and Pharmacology, 8, 53-58 https://doi.org/10.1016/S1382-6689(99)00029-0
  7. Andersen, M. E. and J. E. Dennison, 2004, Mechanistic approaches for mixture risk assessments-present capabilities with simple mixtures and future directions, Environmental Toxicology and Pharmacology, 16, 1-11 https://doi.org/10.1016/j.etap.2003.10.004
  8. U.S. EPA, 1990, Cancer risk from outdoor exposure to air toxics, EPA-450/1-00-004a, pp. 19-21
  9. Carrieri, M., E. Bonfiglio, M. I. Scapellato, I. Macca, G. Tranfo, P. Faranda, E. Paci and G. B. Bartolucci, 2006, Comparison of exposure assessment methods in occupational exposure to benzene in gasoline filling-station attendants, Toxicology Letters, 162, 146-152 https://doi.org/10.1016/j.toxlet.2005.09.036
  10. Chang, Y. C. and C. T. Carlisle, 2001, Microwave process for volatile organic compound abatement, J. Air & Waste Manage. Assoc., 51, 1628-1641 https://doi.org/10.1080/10473289.2001.10464389
  11. Henschel, D. B., 1998, Cost analysis of activated carbon versus photocatalytic oxidation for removing organic compounds from indoor air, J. Air & Waste Manage. Assoc., 48, 985-994 https://doi.org/10.1080/10473289.1998.10463744
  12. Dege, P., L. Pinard, P. Magnoux and M. Guisnet, 2001, Catalytic oxidation of volatile organic compounds (VOCs): Oxidation of oxylene over Pd and Pt/HF AU catalysts, C.R Acad. Sci. Paris, Serie liC, Chimie/Chem., 4, 41-47
  13. O'Malley, A and B. K. Hodnett, 1999, The influence of volatile organic compound structure on conditions required for total oxidation, Catal. Tod., 54, 31-38 https://doi.org/10.1016/S0920-5861(99)00166-2
  14. Wang, W., H. B. Zhang, G. D. Lin and J. T. Xiong, 2000, Study of $Ag/La_{0.6}Sr_{0.4}MnO_{3}$ catalysts for complete oxidation of methanol and ethanol at low concentrations, Appl, Catal. B: Environ., 24, 219-232 https://doi.org/10.1016/S0926-3373(99)00106-X
  15. Centeno, M. A, M. Paulis, M. Montes and J. A Odriozola, 2002, Catalytic combustion of volatile organic compounds on $Au/CeO_{2}/Al_{2}O_{3}$ and $Au/Al_{2}O_{3}$ catalysts, Appl, Catal. A: General, 234, 65-78 https://doi.org/10.1016/S0926-860X(02)00214-4
  16. Minico, S., S. Scire, C. Crisafulli, R. Maggiore and S. Galvagno, 2000, Catalytic combustion of volatile organic compounds on gold/iron oxide catalysts, Appl. Catal. B: Environ., 28, 245-251 https://doi.org/10.1016/S0926-3373(00)00181-8
  17. Ali, A. H. and F. Zaera, 2002, Kinetic study on the selective catalytic oxidation of 2-propanol to acetone over nickel foils, J Molecular Catal. A: Chem., 177, 215-235 https://doi.org/10.1016/S1381-1169(01)00223-0
  18. Hager, S. and R. Bauer, 1999, Heterogeneous photocatalytic oxidation of organics for air purification by near UV irradiated titanium dioxide, Chemosphere, 38, 1549-1559 https://doi.org/10.1016/S0045-6535(98)00375-0
  19. Saad F. T. C. and A. Koh, 1999, Catalytic destruction of volatile organic compound emissions by platinum based catalyst, Chemosphere, 38, 2109-2116 https://doi.org/10.1016/S0045-6535(98)00420-2
  20. Centeno, M. A., M. Paulis, M. Montes and J. A. Odriozola, 2002, Catalytic combustion of volatile compounds on Au/CeO2/Al2O3 and Au/ Al2O3 catalysts, Applied Catalysis, 234, 65-78 https://doi.org/10.1016/S0926-860X(02)00214-4
  21. Tong, J and Y. Matsumura, 2006, Pure hydrogen production by methane steam reforming with hydrogen-permeable membrane reactor, Catalysis Today, 111, 147-152 https://doi.org/10.1016/j.cattod.2005.11.001
  22. 김건중, 박성식, 윤조희, 1995, 바나듐 함유 제올라이트 상에서 MIBK의 촉매연소, 한국폐기물학회지, 12, 513-524
  23. Ordonez, S., L. Bello, H. Sastre, R. Rosal and F. V. Diez, 2002, Kinetics of the deep oxidation of benzene toluene, n-hexane and their binary mixtures over a platinum on r-alumina catalyst, Appl. Catal. Environ., 38, 139-149 https://doi.org/10.1016/S0926-3373(02)00036-X
  24. Baldi, M., E. Finocchio, F. Milella and G. Busca, 1997, Catalytic combustion of C3 hydrocarbons and oxygenates over $Mn_{3}O_{4}$, Appl. Catal. B: Environ., 16, 43-51 https://doi.org/10.1016/S0926-3373(97)00061-1
  25. Dell, R. M. and F. S. Stone, 1994, The Adsorption of Gases on Nickel Oxides, Trans. Soc., 50, 501-510