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Study On The Characteristics Of Dielectric Barrier Discharge And The Remocal Of Cyclohexanone By Dielectric Barrier Discharge

Posted on:2009-01-13Degree:MasterType:Thesis
Country:ChinaCandidate:X B LiFull Text:PDF
GTID:2121360248454726Subject:Environmental Science
Abstract/Summary:PDF Full Text Request
The pollution control of volatile organic compounds(VOCs) is receiving more and more attention.Recently,non-thermal plasma technology is regarded as a more promising new technology in VOCs control all over the world.In atmospheric temperature and room pressure,different VOCs at various concentration can be decomposed by this technology immediately.In this article,dielectric barrier discharge(DBD) was used to remove the dynamic cyclohexanone underatmospheric pressure.it was found that in the same power parameters,with an increase of voltage and frequence,the removal efficiency of cyclohexanone also increased,while it would decrease when the concentrate of cyclohexanone or gas flow rate climbed up.The removal efficiency of cyclohexanone(50 ml/m3) was 100%when the voltage was 8000 V,frequence was 10 kHz and total gas flowrate was 0.46 m3/h.The result indicated that DBD had good effect on removal of cyclohexanone.A water electrode experimental facility setup of dielectric barrier discharge was designed.In this article,the effect of applied excitation voltage,) repetition frequency and discharges gap width on discharge images characteristics of DBD was investigatedThe emission spactras were analyzed by using spectral diagnosis equipment at atmospheric pressure.The relationships between N2(C3Пu→B3Пg) emission spectrum relative intensity and peak voltage,are measured by means of emission spectrum method at room temperature and atmospheric pressure which is advantage and practical for plasma characteristic diagnosis,it was indicated that the quantity of active particles was the critical factor of cyclohexanone remove...
Keywords/Search Tags:Cyclohexanone removal, Dielectric barrier discharge, Pattern formation, Emission spectrum
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