DOI QR코드

DOI QR Code

Improvement of Durability Performance of Catalysts for a Catalytic Combustor

촉매 연소기용 촉매의 내구 성능 향상 연구

  • Choi, Byugchul (School of Mechanical Engineering, Chonnam National University) ;
  • Yu, Jin sang (School of Mechanical Engineering, Chonnam National University) ;
  • Seo, Yong seok (School of polymer and fusion material Eng., Chonnam National University) ;
  • Jung, Pilsoo (Daon RS Co.)
  • Received : 2019.10.14
  • Accepted : 2019.11.20
  • Published : 2019.11.30

Abstract

The aim of this study is to improve the durability performance of catalysts for a catalytic combustor and to obtain operating conditions for stable combustion of the catalytic combustor. It was attempted to improve the durability of the catalysts by adding a promoter in order to reduce the cost of replacing Pt catalyst while maintaining stability. The main catalyst used in the study was Pt and the promoters were Ni and La. Pure Pt3/γ-Al2O3 catalyst without promoter was promoted to fast sintering states under harsh conditions and catalytic combustion was turned off, whereas the catalysts added La, Ni as promoter were showed relatively slow sintering states. It can be concluded that the promoter La, Ni effectively contributes to the improvement of the durability of the Pt catalyst, and it is possible to get longer durability and more stable duration than the conventional catalytic combustor.

Keywords

References

  1. Y. Li, C. Luo, Z. Liu, L. Sang, Catalytic oxidation characteristics of CH4-air mixtures over metal foam monoliths, Applied Energy, 156, p.756-761, 2015. https://doi.org/10.1016/j.apenergy.2015.05.053
  2. Y. Yazawa, H. Yoshida, T. Hattori, The support effect on platinum catalyst under oxidizing atmosphere: improvement in the oxidation-resistance of platinum by the electrophilic property of support materials, Applied Catalysis A: Gen, 237(1-2), p.139-148, 2001.
  3. S.H. Kim, D.C. Gitz, R.C. Sicher, J.T. Baker, D.J. Timlin, V.R. Reddy, Temperature dependence of growth, development, and photosynthesis in maize under elevated $CO_2$, Environ, and Experiment. Botany, 61, p. 224-236, 2007. https://doi.org/10.1016/j.envexpbot.2007.06.005
  4. O. Ghannoum, N.G. Phillip, J.P. Conroy, R.A. Smith, R.D. Attard, R. Woodfield, B.A. Logan, J.D. Lewis, A.t. Tissue, Exposure to preindustrial, current and future atmospheric $CO_2$ and temperature differentially affects growth and photosynthesis in Eucalyptus, Global Change Biology,16, p.303-319, 2010. https://doi.org/10.1111/j.1365-2486.2009.02003.x
  5. H. Shimaji, Complex control of the environment and energy conservation technology: Greenhouse horticulture handbook 5th ed. by Japan Greenhouse Horticulture Association, Agri press, p.206-216, 2013.
  6. Y.H. Lee, C.M. Kim, M.Y. Kim, M.J. Yu, A numerical study on the propane combustion characteristics in a catalytic combustor, The Korean Society of Propulsion Engineers, 21-3, p.247-250, 2010.
  7. Byungchul Choi, Combustion Engineering. Munundang, p.477-491, 2016.
  8. P.S. Jeong, B.C. Choi, Combustion characteristics of a $CO_2$ generator using a catalytic combustor, The 57th KOSCO Symposium, p.91-93, 2018.