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Simultaneous removal of NOx and chlorobenzene on V2O5/TiO2 granular catalyst: Kinetic study and performance prediction
Authors:Lina Gan  Kezhi Li  Hejingying Niu  Yue Peng  Jianjun Chen  Yuandong Huang  Junhua Li
Institution:1. School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China2. Institute of Engineering Technology, Sinopec Catalyst Co., Ltd., Beijing 101111, China3. School of Environmental & Chemical Engineering, Shanghai University, Shanghai 200444, China4. School of Environment, Tsinghua University, Beijing 100084, China
Abstract: ? A V2O5/TiO2 granular catalyst for simultaneous removal of NO and chlorobenzene. ? Catalyst synthesized by vanadyl acetylacetonate showed good activity and stability. ? The kinetic model was established and the synergetic activity was predicted. ? Both chlorobenzene oxidation and SCR of NO follow pseudo-first-order kinetics. ? The work is of much value to design of multi-pollutants emission control system. The synergetic abatement of multi-pollutants is one of the development trends of flue gas pollution control technology, which is still in the initial stage and facing many challenges. We developed a V2O5/TiO2 granular catalyst and established the kinetic model for the simultaneous removal of NO and chlorobenzene (i.e., an important precursor of dioxins). The granular catalyst synthesized using vanadyl acetylacetonate precursor showed good synergistic catalytic performance and stability. Although the SCR reaction of NO and the oxidation reaction of chlorobenzene mutually inhibited, the reaction order of each reaction was not considerably affected, and the pseudo-first-order reaction kinetics was still followed. The performance prediction of this work is of much value to the understanding and reasonable design of a catalytic system for multi-pollutants (i.e., NO and dioxins) emission control.
Keywords:NOx  Chlorobenzene  Simultaneous removal  Kinetic study  Performance prediction  V2O5/TiO2  Graphical abstract  
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