Catalytic Destruction and Removal of Dichloromethane in the Microwave/Fe₄O₃ System

Abstract:

In this study, a new catalytic oxidation technology, microwave/Fe₃O₄ system, was used to treat volatile organic carbons (VOCs) and dichloromethane (DCM) was selected to simulate industrial emissions of VOCs. This system comprises a household microwave oven modified as the reaction chamber, which was fitted with a vertical, cylindrical quartz reactor comprising a catalytic packed column filled with granular Fe₃O₄, a microwave catalyst of iron (II, III) oxide. Experimental results showed that the destruction and removal efficiency (DRE) of DCM by microwave alone was close to zero, but with the microwave/Fe₃O₄ system, the temperature of the catalytic packed column increased rapidly and reached thermal balance within 10-15 min. Analysis of the rear gas after combustion showed that most of DCM was thermal oxidized into CO₂ and H₂O. The successful application of the proposed microwave/Fe₃O₄ system to thermal destruction of DCM promises a new technology for treatment of VOCs.

• Periodical: Applied Mechanics and Materials (Volumes 395-396)
• Pages: 595-600
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.395-396.595
• Online since: September 2013
• Authors: Ching Hsing Lin, Yung Hsu Hsieh, Chen Yu Chang*
• Keywords: Catalytic Packed Column, DCM, Fe₃O₄, Microwave, VOCS

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