화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.72, 400-407, April, 2019
DOI10.1016/j.jiec.2018.12.042  Export Citation
Removal of NOx by selective catalytic reduction coupled with plasma under temperature fluctuation condition
Duc Ba Nguyen1, 2, Van Toan Nguyen1, Il Jeong Heo3, and Young Sun Mok1, †
  • 1Department of Chemical and Biological Engineering, Jeju National University, Jeju 63243, Republic of Korea
  • 2Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang, Vietnam
  • 3Environment & Sustainable Resources Research Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
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The hydrocarbon selective catalytic reduction (HC-SCR) of nitrogen oxides (NOx) over Ag/α.Al2O3 with temperature fluctuation in the range of 150-350 °C was investigated in a packed-bed dielectric barrier discharge plasma reactor. The results revealed that the HC-SCR coupled with plasma maintained high NOx reduction efficiency around 74% regardless of the temperature variations in the range from 150 to 350 °C (10-40 °C/min). In comparison, the NOx reduction efficiency of the HC-SCR-alone process was varied from 37.6 to 63.4%, depending on the reaction temperature fluctuations. Consequently, the strong temperature dependence of catalytic activity can be resolved by integrating plasma and catalysis.
Keywords:NOx;Plasma;Ag/α-Al2O3 catalyst;HC-SCR;Temperature fluctuation
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