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A Method for Removal of CO from Exhaust Gas Using Pulsed Corona Discharge
Xiaohong Li1, Lin Yang1, Yuyong Lei1
1a College of Mechanical Engineering, Chongqing University , Chongqing City , People's Republic of China.
Journal of the Air & Waste Management Association (1995)
|January 12, 2017
Summary
This study demonstrates effective carbon monoxide (CO) removal from motorcycle exhaust using plasma chemical reactions. Over 80% CO reduction was achieved by optimizing parameters in a pulsed corona discharge system.
Area of Science:
- Environmental Science
- Chemical Engineering
- Plasma Physics
Background:
- Motorcycle exhaust is a significant source of air pollution, particularly carbon monoxide (CO).
- Traditional methods for CO removal can be energy-intensive or inefficient.
- Plasma-based technologies offer a promising alternative for pollutant degradation.
Purpose of the Study:
- To investigate the efficacy of pulsed corona discharge plasma for CO oxidation in motorcycle exhaust.
- To identify key operational parameters influencing CO removal efficiency.
- To explore the co-production of ozone (O3) and its role in CO reduction.
Main Methods:
- Experimental setup utilizing a pulsed corona discharge reactor.
- Systematic variation of parameters: initial CO concentration, pulse amplitude and frequency, residence time, reactor volume, and relative humidity.
- Gas analysis to quantify CO removal and O3 generation.
Main Results:
- Achieved over 80% CO removal efficiency at an initial CO concentration of 288 ppm under ambient temperature conditions.
- Identified optimal ranges for key parameters, including pulse characteristics and residence time.
- Observed the generation of ozone (O3), which aids in CO oxidation.
Conclusions:
- Pulsed corona discharge plasma is an effective method for removing CO from motorcycle exhaust.
- Parameter optimization is crucial for maximizing CO removal efficiency.
- The process offers a potentially efficient route for exhaust gas treatment with beneficial O3 co-production.
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