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Kinetics of the NO/NO2 equilibrium reaction over an iron zeolite catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
45767 46422 2013 5 PDF Available
Title
Kinetics of the NO/NO2 equilibrium reaction over an iron zeolite catalyst
Abstract

The steady-state kinetics of NO oxidation and its reverse reaction were studied by systematic measurements in an integral reactor at a range of temperatures, reactor pressures and reactant concentrations on a commercial iron zeolite catalyst. A Langmuir–Hinshelwood type rate equation was found to describe the experimental results with very good accuracy. The reaction orders for NO and O2 were found to be 1 and 0.75, respectively, while the reaction was inhibited by both NO2 and H2O. For the first time, the kinetics developed allow the influence of water vapor on the rate of the NO/NO2 equilibrium reaction both in the concentration range above and below 1 vol% H2O to be described.

Graphical abstractNO oxidation activity of iron zeolite in the presence of water vapor.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► NO oxidation and reverse reaction over a commercial iron zeolite were studied. ► Reaction orders of 1 and 0.75 for NO and O2, respectively, were determined. ► The reaction rate is inhibited by both NO2 and H2O. ► The new kinetic equation is applicable to a water concentration range from 0.1 to 2.1 vol%.

Keywords
NO oxidation; Iron zeolite; Kinetics
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Kinetics of the NO/NO2 equilibrium reaction over an iron zeolite catalyst
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volumes 134–135, 2 May 2013, Pages 55–59
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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Price after discount Only $4.95
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