화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.67, 448-460, November, 2018
DOI10.1016/j.jiec.2018.07.019  Export Citation
Carbon bead-supported copper-dispersed carbon nanofibers: An efficient catalyst for wet air oxidation of industrial wastewater in a recycle flow reactor
Ashish Yadav1, and Nishith Verma1, 2, †
  • 1Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
  • 2Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
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Copper nanoparticle-doped and graphitic carbon nanofibers-covered porous carbon beads were used as an efficient catalyst for treating synthetic phenolic water by catalytic wet air oxidation (CWAO) in a packed bed reactor over 10-30 bar and 180-230 °C, with air and water flowing co-currently. A mathematical model based on reaction kinetics assuming degradation in both heterogeneous and homogeneous phases was developed to predict reduction in chemical oxygen demand (COD) under a continuous operation with recycle. The catalyst and process also showed complete COD reduction (>99%) without leaching of Cu against a high COD (~120,000 mg/L) containing industrial wastewater.
Keywords:Catalytic wet air oxidation;Kinetic model;Recycle reactor;Carbon nanofibers;Copper nanoparticle
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