For their distinguished global warming potential（GWP100）and long atmosphere lifespan,CF_4,SF_6 and SF_5CF_3were significant in the field of greenhouse gas research.The details of discharging character and the optima...For their distinguished global warming potential（GWP100）and long atmosphere lifespan,CF_4,SF_6 and SF_5CF_3were significant in the field of greenhouse gas research.The details of discharging character and the optimal parameter were discussed by using a Dielectric Barrier Discharge（DBD）reactor to decompose these potent greenhouse gases in this work.The results showed that SF_6 could be decomposed by 92% under the conditions of 5 min resident time and3000 V applied voltage with the partial pressure of 2.0 k Pa,28.2 k Pa,and 1.8 k Pa for SF_6,air and water vapor,respectively.0.4 k Pa CF_4 could be decomposed by 98.2% for 4 min resident time with 30 k Pa Ar added.The decomposition of SF_5CF_3 was much more effective than that of SF_6 and CF_4and moreover,1.3 k Pa SF_5CF_3,discharged with 30 k PaO_2,Ar and air,could not be detected when the resident time was 80 s,40 s,and 120 s,respectively.All the results indicated that DBD was a feasible technique for the abatement of potent greenhouse gases.展开更多
基金supported by National Natural Science Foundation of China(Nos.20507004,21577023)
文摘For their distinguished global warming potential（GWP100）and long atmosphere lifespan,CF_4,SF_6 and SF_5CF_3were significant in the field of greenhouse gas research.The details of discharging character and the optimal parameter were discussed by using a Dielectric Barrier Discharge（DBD）reactor to decompose these potent greenhouse gases in this work.The results showed that SF_6 could be decomposed by 92% under the conditions of 5 min resident time and3000 V applied voltage with the partial pressure of 2.0 k Pa,28.2 k Pa,and 1.8 k Pa for SF_6,air and water vapor,respectively.0.4 k Pa CF_4 could be decomposed by 98.2% for 4 min resident time with 30 k Pa Ar added.The decomposition of SF_5CF_3 was much more effective than that of SF_6 and CF_4and moreover,1.3 k Pa SF_5CF_3,discharged with 30 k PaO_2,Ar and air,could not be detected when the resident time was 80 s,40 s,and 120 s,respectively.All the results indicated that DBD was a feasible technique for the abatement of potent greenhouse gases.
