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Dynamic methods for catalytic kinetics

Paper ID Volume ID Publish Year Pages File Format Full-Text
43008 45951 2008 26 PDF Available
Title
Dynamic methods for catalytic kinetics
Abstract

The application of various transient techniques in heterogeneous catalysis (TAP, step-response experiments, SSITKA, TEOM), with the aim to determine reaction kinetics for design purposes, is presented for several cases. These cases, comprising catalytic cracking, diffusion in zeolites, simultaneous NOx and SOx removal, syngas production from methane by chemical looping and selective catalytic reduction of NOx, show that transient techniques can be well used for the purpose of rapid determination of the reaction kinetics without the laborious classical approach of steady-state kinetic measurements and without the need of high levels of sophistication to interpret and process the experimental data. In this respect transient kinetics deserve, next to fundamental catalysis studies, more frequent application in design studies for industrially relevant reaction systems. Topics and challenges for further developments in transient studies are indicated.

Graphical abstractThis paper reviews different transient methods amenable for determination of reaction kinetics. Transient methods allow extracting more and better kinetic information from fewer experiments compared to conventional steady-state experiments. The present day availability of experimental and analysis equipment and of more easily applicable numerical tools justifies a reappreciation of transient kinetic analysis techniques. Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Transient technique; Kinetics; Heterogeneous catalysis; TAP; SSITKA; TEOM; Step-response experiments; Isotopic Labeling; Temperature programming; Concentration programming; Catalytic cracking; Diffusion in zeolites; SCR; Methane coupling; Chemical looping
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Dynamic methods for catalytic kinetics
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 342, Issues 1–2, 30 June 2008, Pages 3–28
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
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