Scaling of surface-plasma reactors with a significantly increased energy density for NO conversion
- 作者：Muhammad Arif Malik ; MArifMalik@gmail.com ; Shu Xiao ; Karl H. Schoenbach
- 关键词：Scaling of reactor ; Nitric oxide ; Non-thermal plasma ; Surface-plasma ; Flue gas treatment ; NOx removal
- 刊名：Journal of Hazardous Materials
- 出版年：2012
- 期刊代码：50_03043894
- 类别：ce
- 出版时间：30 March, 2012
- 卷：209-210
- 期：Complete
- 页码：293-298
- 文件大小：898 K
摘要
Comparative studies revealed that surface plasmas developing along a solid-gas interface are significantly more effective and energy efficient for remediation of toxic pollutants in air than conventional plasmas propagating in air. Scaling of the surface plasma reactors to large volumes by operating them in parallel suffers from a serious problem of adverse effects of the space charges generated at the dielectric surfaces of the neighboring discharge chambers. This study revealed that a conductive foil on the cathode potential placed between the dielectric plates as a shield not only decoupled the discharges, but also increased the electrical power deposited in the reactor by a factor of about forty over the electrical power level obtained without shielding and without loss of efficiency for NO removal. The shield had no negative effect on efficiency, which is verified by the fact that the energy costs for 50%NO removal were about 60 eV/molecule and the energy constant, kE, was about 0.02 L/J in both the shielded and unshielded cases.