التفاصيل البيبلوغرافية
| العنوان: |
Decomposition of ethylene oxide in the RF plasma environment |
| المؤلفون: |
Liao, W. T., Lee, W. J., Chen, C. Y., Shih, M. |
| المصدر: |
Environmental Technology; Feb2001, Vol. 22 Issue 2, p165, 0p |
| مصطلحات موضوعية: |
ETHYLENE oxide, BIODEGRADATION |
| مستخلص: |
A radio frequency (RE) plasma system was used to decompose the ethylene oxide (EO) contained gas in the EO/Ar, and EO/O2/Ar system, respectively. The reactants and final products were analyzed byusing FTIR (Fourier transform infrared spectroscopy). The effects ofplasma operational parameters, including input power wattage (W), total gas flow rate (Q), feeding concentration (C) of EO and operational pressure for EO decomposition were evaluated. Due to the importanceof the high-energy electrons in the RE plasma system, the EO decomposition fraction in plasma reaction increased with decreasing operational pressure, while that of thermal reaction, reported .by previous investigations, increased with increasing operational pressure. However, owing to the electrophilic characteristic of oxygen atoms in the EO molecule causing the effect of electron attachment, in conditions of higher EO feeding concentration, the pressure dependence became thesame for both plasma- and thermal- reaction. The EO oxidation reaction has also been investigated, the result shows that EO almost completely oxidized at 600-692 K gas temperature. The main products for theEO/Ar system are CO, CH4, C2H6, C2H4 and C2H2, and those forthe EO/O2/Ar system are CO2 and H2O. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
