Process scale-up remains a considerable challenge for environmental applications of non-thermal plasmas.Undersanding the impact of reactor hydrodynamics in the performance of the process is a key step to overcome this...Process scale-up remains a considerable challenge for environmental applications of non-thermal plasmas.Undersanding the impact of reactor hydrodynamics in the performance of the process is a key step to overcome this challenge.In this work,we apply chemical engineering concepts to analyse the impact that different non-thermal plasma reactor configurations and regimes,such as laminar or plug flow,may have on the reactor performance.We do this in the particular context of the removal of pollutants by non-thermal plasmas,for which a simplified model is available.We generalise this model to different reactor configurations and,under certain hypotheses,we show that a reactor in the laminar regime may have a behaviour significantly different from one in the plug flow regime,often assumed in the non-thermal plasma literature.On the other hand,we show that a packed-bed reactor behaves very similarly to one in the plug flow regime.Beyond those results,the reader will find in this work a quick introduction to chemical reaction engineering concepts.展开更多
基金Supported by the Foundation of State Key Laboratory of Coal Combustion, the National Natural Science Foundation of China （51306022, 51176059） and the Natural Science Foundation of Hubei Province （2013CFB398）.
文摘煤烟形成在一个 jet-stirred/plug-flow 反应堆(JSR/PFR ) 与 CO2 增加数字地被调查在气压的 C2H4/O2/N2 反应堆(2.2 的 C/O 比率) 。更新的 Kazakov 机制在 premixed 火焰强调 O2/CO2 空气的效果而不是 O2/N2。煤烟形成为 C2H4/O2/N2 在 JSR/PFR 被考虑。在不同 C2H4/O2/CO2/N2 气氛的煤烟形成上的 CO2 增加的效果被学习，与化学效果上的特殊强调。模拟表演吸热的反应 CO2 +HCO + 哦在 CO2 的烃中介的减小是负责的通过氢氧根激进分子的增补形成的增加的燃烧。为通过有最最重要的链的上述前面的反应的 H 基的 CO2 的比赛分叉的反应 H +O2O + 哦显著地减少燃烧的燃料率。CO2 的化学效果在住处时间和公司的鼹鼠部分引起重要增加并且哦，在一些中介的重要减少(H， C2H2 ) ，多不的芳香的烃(哼， C6H6 和 C16H10，等等) 并且煤烟体积部分。CO2 增加愿望在一些 C3 的仅仅大约 5% ～ 20% 最大的鼹鼠部分导致减少到 C10 烃中介。敏感分析和反应路径分析结果证明那条 C2H4 反应路径和产品由于 CO2 增加被改变。
文摘Process scale-up remains a considerable challenge for environmental applications of non-thermal plasmas.Undersanding the impact of reactor hydrodynamics in the performance of the process is a key step to overcome this challenge.In this work,we apply chemical engineering concepts to analyse the impact that different non-thermal plasma reactor configurations and regimes,such as laminar or plug flow,may have on the reactor performance.We do this in the particular context of the removal of pollutants by non-thermal plasmas,for which a simplified model is available.We generalise this model to different reactor configurations and,under certain hypotheses,we show that a reactor in the laminar regime may have a behaviour significantly different from one in the plug flow regime,often assumed in the non-thermal plasma literature.On the other hand,we show that a packed-bed reactor behaves very similarly to one in the plug flow regime.Beyond those results,the reader will find in this work a quick introduction to chemical reaction engineering concepts.
