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- W2160425883 abstract "Abstract BACKGROUND Environmental regulations are moving to tighter control of NOx emissions produced at both stationary and mobile sources. Selective catalytic reduction ( SCR ) of NOx with NH 3 is an efficient treatment technique capable of operating at high gas flow rates (e.g. using monolithic catalysts) and a wide range of NO concentrations. The aim of this work is to provide guidelines for designing this kind of reactor taking into account both intrinsic kinetics and mass transfer. RESULTS Experiments have been done in lab‐scale (0.5 g) and bench‐scale (430 g) reactors operating under different conditions: temperature (150–320 °C), space velocity ( WHSV 5360–16100 mol h −1 kg cat −1 ), oxygen concentration (0–21%) and NH 3 / NO ratio (0.2–1.2). Temperature has a great influence on the reaction rate, and at least 300 °C is required at a WHSV of 16100 mol h −1 kg cat −1 . Oxygen is required in the feed because it participates as reactant in SCR . CONCLUSIONS Data obtained from the lab‐scale reactor in the absence of mass transfer limitations have been used to fit an intrinsic kinetic model of the SCR reaction. A more complex model has been used for the bench‐scale reactor accounting for reaction kinetics and mass transfer (internal effectiveness factor was determined) in the monolithic catalyst. © 2014 Society of Chemical Industry" @default.
- W2160425883 created "2016-06-24" @default.
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- W2160425883 date "2014-06-13" @default.
- W2160425883 modified "2023-10-15" @default.
- W2160425883 title "The role of reaction kinetics and mass transfer in the selective catalytic reduction of <scp>NO</scp> with <scp>NH<sub>3</sub></scp> in monolithic reactors" @default.
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- W2160425883 doi "https://doi.org/10.1002/jctb.4437" @default.
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