Abstract
A practical scale dielectric barrier discharge (DBD) reactor, which treats up to l,000.Nm3/hr of polluted gases, has been operated to control NOx or odor. The DBD reactor treats the combustion flue gases emitted from a 300-horse power diesel engine or the air contaminated by the dilute odor gases, such as H2S, NH3, and Acetaldehydes. In the case of NOx treatment test, the combined process of DBD and a conventional NH3 selective catalytic reduction (SCR) process have been simultaneously used. The operating temperatures of the present combined process, i.e. 100 °C, are significantly lower than the typical temperature window of the SCR, i.e. 300 ∼ 450 °C. The NOx treatment test has been conducted for 6 months, which identify many of the practical problems, such as durability of the catalysts, reliability of the DBD reactor under abrupt variations of temperature conditions, deposition of soot particles, etc. In the case of odor control test, secondary chemical process assisted by a catalyst process has been adopted to reduce the gaseous by-products produced from the discharge chemical process, such as O3, HNO3, and NO2. In advance to the practical scale applications of DBD technique, characteristics of DBD have been carefully compared with those of a pulsed corona. In this comparison study, optical measurements of light emission, theoretical estimation of the electron energy distributions, and performance of NOx treatments for both types of non-thermal plasma have been conducted.
Original language | English (US) |
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Pages (from-to) | 379 |
Number of pages | 1 |
Journal | IEEE International Conference on Plasma Science |
State | Published - 2003 |
Externally published | Yes |
Event | 2003 IEEE International Conference on Plasma Science - Jeju, Korea, Republic of Duration: Jun 2 2003 → Jun 5 2003 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering