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Single stage water gas shift conversion over Pt/TiO2—Problem of catalyst deactivation

Paper ID Volume ID Publish Year Pages File Format Full-Text
43039 45952 2008 6 PDF Available
Title
Single stage water gas shift conversion over Pt/TiO2—Problem of catalyst deactivation
Abstract

Pt/TiO2 is an active and selective catalyst for single stage water gas shift reaction. However, the catalyst deactivated with time on stream. Detailed studies of fresh, used, and reactivated Pt/TiO2 catalysts were carried out using kinetic (steady state and transient) and in situ IR spectroscopic methods in order to understand the mechanism of deactivation. The loss of Pt surface area was the cause of Pt/TiO2 deactivation, exclusively. Pt sintering occurred mainly due to the presence of traces of formaldehyde formed under WGS reaction conditions by reaction of H2 and CO. Details concerning the deactivation behavior are discussed.

Graphical abstractDeactivation of Pt/TiO2 WGS catalyst is caused by Pt sintering in the presence of traces of formaldehyde formed under WGS reaction conditions by reaction of H2 and CO.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
WGS; Bifunctional; Catalysts; Platinum; Titania; Stability; Deactivation; SMSI; Sintering
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Single stage water gas shift conversion over Pt/TiO2—Problem of catalyst deactivation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 338, Issues 1–2, 1 April 2008, Pages 66–71
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us