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Deactivation and regeneration of an activated carbon-supported nickel catalyst for methanol carbonylation in the vapor phase

Paper ID Volume ID Publish Year Pages File Format Full-Text
53018 46896 2008 5 PDF Available
Title
Deactivation and regeneration of an activated carbon-supported nickel catalyst for methanol carbonylation in the vapor phase
Abstract

The stability, deactivation and regeneration of a Ni/AC catalyst for methanol carbonylation in the vapor phase were studied. The results revealed that deactivation was mainly caused by carbon deposition and an increase in Ni particle size. Limitation of the internal diffusion of acetic acid and/or methyl acetate was confirmed by Py-FTIR, as could explain the slow deactivation observed in the initial stage of the reaction. Further study revealed that the deactivated catalyst was easily regenerated in H2 flow at 400 °C. The deactivation of regenerated catalyst occurred more rapidly due to the bigger Ni particle size.

Keywords
Methanol carbonylation; Acetic acid; Ni/AC catalyst; Deactivation; Regeneration
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Deactivation and regeneration of an activated carbon-supported nickel catalyst for methanol carbonylation in the vapor phase
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issues 11–12, 30 June 2008, Pages 2107–2111
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