화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.20, No.4, 1650-1655, July, 2014
DOI10.1016/j.jiec.2013.08.012  Export Citation
NOx removal efficiency and N2 selectivity during selective catalytic reduction processes over Al2O3 supported highly cross-linked polyethylene catalysts
Ahmad M. Abu-Jrai†, Jehad A. Yamin1, Khalid A. Ibrahim2, Omar A. Al-Khashman, Mouath A. Al-Shaweesh, Muhannad A. Hararah, Umer Rashid3, Mohammad Ahmad4, Gavin M. Walker5, and Ala’a H. Al-Muhtaseb6
  • Department of Environmental Engineering, Faculty of Engineering, Al-Hussein Bin Talal University, Ma’an, Jordan
  • 1Department of Mechanical Engineering, Faculty of Engineering and Technology, The University of Jordan, Amman, Jordan
  • 2Department of Chemical Engineering, Faculty of Engineering, Al-Hussein Bin Talal University, Ma’an, Jordan
  • 3Institute of Advanced Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
  • 4Department of Mechanical Engineering, Faculty of Engineering and Architecture, American University Beirut, Lebanon
  • 5Materials Surface Science Institute, Department of Chemical and Environmental Sciences, University of Limerick, Ireland
  • 6Petroleum and Chemical Engineering Department, Faculty of Engineering, Sultan Qaboos University, Muscat, Oman
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The performance of a highly cross-linked polyethylene catalyst supported on alumina for low temperature selective catalytic reduction of NOx by unburned hydrocarbons (HCs) existing in an exhaust gas was examined at different engine conditions with the addition of exhaust-gas recirculation. The HXPE catalyst was shown to exhibit good NOx reduction activity at low temperatures (100-250 ℃) where the only reductant was the unburned HC, which was already present in the exhaust flow. The maximum NOx reduction of approximately 52% was achieved at a temperature of 150 ℃. HXPE demonstrated very good selectivity toward N2 in the majority of tested conditions (~80%).
Keywords:NOx reduction;Selective catalytic reduction;Highly cross-linked polyethylene;Polymer catalysts;Exhaust gas recirculation
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