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Remediation of olfactory pollution by photocatalytic degradation process: Study of methyl ethyl ketone (MEK)

Paper ID Volume ID Publish Year Pages File Format Full-Text
28869 44099 2007 9 PDF Available
Title
Remediation of olfactory pollution by photocatalytic degradation process: Study of methyl ethyl ketone (MEK)
Abstract

The photocatalyzed oxidation of gas-phase contaminants in air is being more and more explored regarding the possible applications: decontamination, deodorization and purification of enclosed atmospheres. In the present work, the photocatalytic degradation of a typical malodorous pollutant of indoor air: methyl ethyl ketone (MEK) has been investigated by using an annular photoreactor. The annular photoreactor was modelled by a cascade of heighten elementary continuously stirred tank reactors. The influence of several kinetic parameters such as pollutant concentration, oxygen content, humidity content and incident light irradiance has been studied. The Langmuir–Hinshelwood model has been verified for MEK. The by-products of MEK photocatalytic degradation have been identified by GC/MS and acetaldehyde was found to be the main gaseous intermediate. Acetaldehyde thus has been taken into account in the general Langmuir–Hinshelwood model to evaluate the possible competition of adsorption between acetaldehyde and MEK. A mechanistic pathway is then proposed for the photocatalytic degradation of MEK.

Keywords
Methyl ethyl ketone; Acetaldehyde; Mechanism of photocatalytic degradation; Annular photocatalytic reactor modelling; Kinetic parameters
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Remediation of olfactory pollution by photocatalytic degradation process: Study of methyl ethyl ketone (MEK)
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 191, Issue 1, 7 September 2007, Pages 42–50
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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
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Any Questions? feel free to contact us