Performance evaluation of hybrid systems comprising silent discharge plasma and catalysts for VOC control

Hisahiro Einaga, Takashi Ibusuki, Shigeru Futamura

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A hybrid system comprising silent discharge plasma (SDP) and manganese oxide (MnO2) catalyst was used for the decomposition of benzene in air, The efficiency for the benzene decomposition was greatly enhanced by combining MnO2 with the SDP reactor in the latter part. The MnO2 catalyst decomposed benzene by using ozone, which was formed in SDP as the oxidant precursor. With increase in the amount of water vapor in air, the efficiency for the benzene decomposition was decreased, partly due to the diminished formation of O3 in the SDP reactor. Only CO2 and CO were obtained as the products. The carbon mass balance was not perfect due to the formation of intermediates on MnO2 during the reaction. The intermediates were subsequently decomposed to CO2 and CO by MnO2 in the presence of O3. In dry air, the selectivities to CO2 and CO were 70% and 30%, respectively, and were almost independent of SED. The CO2 selectivity was improved to 90% by humidifying the reaction gas.

Original languageEnglish
Pages (from-to)858-863
Number of pages6
JournalConference Record - IAS Annual Meeting (IEEE Industry Applications Society)
Volume2
DOIs
Publication statusPublished - Jan 1 2000
Externally publishedYes

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Hybrid systems
Volatile organic compounds
benzene
volatile organic compound
Benzene
catalyst
Plasmas
plasma
Catalysts
decomposition
Decomposition
air
Air
Manganese oxide
manganese oxide
Oxidants
oxidant
Ozone
Water vapor
mass balance

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

Cite this

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abstract = "A hybrid system comprising silent discharge plasma (SDP) and manganese oxide (MnO2) catalyst was used for the decomposition of benzene in air, The efficiency for the benzene decomposition was greatly enhanced by combining MnO2 with the SDP reactor in the latter part. The MnO2 catalyst decomposed benzene by using ozone, which was formed in SDP as the oxidant precursor. With increase in the amount of water vapor in air, the efficiency for the benzene decomposition was decreased, partly due to the diminished formation of O3 in the SDP reactor. Only CO2 and CO were obtained as the products. The carbon mass balance was not perfect due to the formation of intermediates on MnO2 during the reaction. The intermediates were subsequently decomposed to CO2 and CO by MnO2 in the presence of O3. In dry air, the selectivities to CO2 and CO were 70{\%} and 30{\%}, respectively, and were almost independent of SED. The CO2 selectivity was improved to 90{\%} by humidifying the reaction gas.",
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AU - Einaga, Hisahiro

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N2 - A hybrid system comprising silent discharge plasma (SDP) and manganese oxide (MnO2) catalyst was used for the decomposition of benzene in air, The efficiency for the benzene decomposition was greatly enhanced by combining MnO2 with the SDP reactor in the latter part. The MnO2 catalyst decomposed benzene by using ozone, which was formed in SDP as the oxidant precursor. With increase in the amount of water vapor in air, the efficiency for the benzene decomposition was decreased, partly due to the diminished formation of O3 in the SDP reactor. Only CO2 and CO were obtained as the products. The carbon mass balance was not perfect due to the formation of intermediates on MnO2 during the reaction. The intermediates were subsequently decomposed to CO2 and CO by MnO2 in the presence of O3. In dry air, the selectivities to CO2 and CO were 70% and 30%, respectively, and were almost independent of SED. The CO2 selectivity was improved to 90% by humidifying the reaction gas.

AB - A hybrid system comprising silent discharge plasma (SDP) and manganese oxide (MnO2) catalyst was used for the decomposition of benzene in air, The efficiency for the benzene decomposition was greatly enhanced by combining MnO2 with the SDP reactor in the latter part. The MnO2 catalyst decomposed benzene by using ozone, which was formed in SDP as the oxidant precursor. With increase in the amount of water vapor in air, the efficiency for the benzene decomposition was decreased, partly due to the diminished formation of O3 in the SDP reactor. Only CO2 and CO were obtained as the products. The carbon mass balance was not perfect due to the formation of intermediates on MnO2 during the reaction. The intermediates were subsequently decomposed to CO2 and CO by MnO2 in the presence of O3. In dry air, the selectivities to CO2 and CO were 70% and 30%, respectively, and were almost independent of SED. The CO2 selectivity was improved to 90% by humidifying the reaction gas.

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