Volume 42, Issue 5 pp. 1144-1152
Research Article

Adsorbent Regeneration by Non-thermal Plasma for Elimination of Odorous Compounds from Indoor Air

Frank Holzer

Frank Holzer

Helmholtz Centre for Environmental Research – UFZ, Department of Environmental Engineering, Permoserstrasse 15, 04318 Leipzig, Germany

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Frank-Dieter Kopinke

Frank-Dieter Kopinke

Helmholtz Centre for Environmental Research – UFZ, Department of Environmental Engineering, Permoserstrasse 15, 04318 Leipzig, Germany

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Ulf Roland

Corresponding Author

Ulf Roland

Helmholtz Centre for Environmental Research – UFZ, Department of Environmental Engineering, Permoserstrasse 15, 04318 Leipzig, Germany

Correspondence: Ulf Roland ([email protected]), Helmholtz Centre for Environmental Research – UFZ, Department of Environmental Engineering, Permoserstrasse 15, 04318 Leipzig, Germany.Search for more papers by this author
First published: 14 March 2019
Citations: 1

Abstract

The non-thermal plasma (NTP) technique was shown to be a method to improve indoor air quality. In particular in kitchens, odorous emissions can be removed by NTP. A combined concept of adsorption of volatile organic compounds (VOCs) and plasma regeneration of the adsorber was tested in adsorption-regeneration-adsorption cycles. As reference VOCs, 2-methylthiophene, 2-methylpyrazine, 2-acetylthiazole, nonanal, and trans-2-nonenal were selected in humid air streams. These odorous compounds are emitted during cooking and frying processes. The adsorption-regeneration concept was also tested during a simulated frying process with garlic in rape oil. A hydrophobic zeolite was chosen as adsorber material and placed directly into the discharge zone of a plasma reactor.

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