Decomposition of odor pollutant acetaldehyde using Mn loaded microporous zeolites

Hyung Won Lee; Heejin Lee; Young Kwon Park

doi:10.14478/ace.2019.1109

Decomposition of odor pollutant acetaldehyde using Mn loaded microporous zeolites

Hyung Won Lee, Heejin Lee, Young Kwon Park

School of Environmental Engineering

University of Seoul

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

An acetaldehyde, a representative food waste odor, was decomposed using a hybrid system comprised of a non-thermal plasma and catalyst at an ambient temperature under high humidity. A five wt.% Mn was impregnated on two differently structured microporous zeolites, namely Beta and ZSM-5, with a different molar ratio of SiO₂/Al₂O₃. Under high humidity conditions, the acetaldehyde degradation was higher in zeolites with the high ratio of SiO₂/Al₂O₃. Among studied catalysts, a five wt.% Mn/Beta (SiO₂/Al₂O₃ = 300) showed the highest acetaldehyde removal activity owing to its high hydrophobicity and reducibility. During long term stability test using the same catalyst for 110 hours, the acetaldehyde removal activity was relatively well-maintained.

Original language	English
Pages (from-to)	57-60
Number of pages	4
Journal	Applied Chemistry for Engineering
Volume	31
Issue number	1
DOIs	https://doi.org/10.14478/ace.2019.1109
State	Published - 2020

Keywords

Acetaldehyde
Beta
Mn
Non-thermal plasma
Ozone

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abstract = "An acetaldehyde, a representative food waste odor, was decomposed using a hybrid system comprised of a non-thermal plasma and catalyst at an ambient temperature under high humidity. A five wt.% Mn was impregnated on two differently structured microporous zeolites, namely Beta and ZSM-5, with a different molar ratio of SiO2/Al2O3. Under high humidity conditions, the acetaldehyde degradation was higher in zeolites with the high ratio of SiO2/Al2O3. Among studied catalysts, a five wt.% Mn/Beta (SiO2/Al2O3 = 300) showed the highest acetaldehyde removal activity owing to its high hydrophobicity and reducibility. During long term stability test using the same catalyst for 110 hours, the acetaldehyde removal activity was relatively well-maintained.",

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AB - An acetaldehyde, a representative food waste odor, was decomposed using a hybrid system comprised of a non-thermal plasma and catalyst at an ambient temperature under high humidity. A five wt.% Mn was impregnated on two differently structured microporous zeolites, namely Beta and ZSM-5, with a different molar ratio of SiO2/Al2O3. Under high humidity conditions, the acetaldehyde degradation was higher in zeolites with the high ratio of SiO2/Al2O3. Among studied catalysts, a five wt.% Mn/Beta (SiO2/Al2O3 = 300) showed the highest acetaldehyde removal activity owing to its high hydrophobicity and reducibility. During long term stability test using the same catalyst for 110 hours, the acetaldehyde removal activity was relatively well-maintained.

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KW - Ozone

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Decomposition of odor pollutant acetaldehyde using Mn loaded microporous zeolites

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Keywords

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