Chemical reaction kinetics simulation of NO removal by strong ionization discharge
- Received Date: 19/12/2016
- Accepted Date: 30/09/2016
- Available Online: 26/08/2017
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Key words:
- reaction kinetics /
- numerical simulation /
- strong ionization discharge /
- NO removal rate /
- active particles
Abstract: The removal of NO by strong ionization discharge is an interdisciplinary subject, which involves chemistry, physics and environmental engineering. The removal process is a series of essentially micro process. It is difficult to research through experiments directly. Therefore, a chemical model was developed to obtain NO removal mechanism by using MATLAB to carry out numerical simulation. Results obtained from the model indicated that ·O and ·OH were produced in a large amount at 800 μs, while the amount of ·N was rather small. Thus, the removal of NO was mainly achieved by reacting with ·O and ·OH. In the process of removal, NO was firstly oxidized into NO2 and eventually converted into HNO3.Concurrently, the validity of the model was verified by experiments. Experimental results showed that the NO removal rate decreased gradually with the increase of NO initial concentration and increased significantly with the increase of oxygen content.