Removal of gaseous toluene and submicron aerosol particles using a dielectric barrier discharge reactor.
A lab-scale dielectric barrier discharge (DBD) reactor was fabricated, and gaseous and particulate contaminant removal tests were carried out under a range of DBD reactor operating conditions: applied voltage (5.0-8.5 kV), frequency (60-1000 Hz), upstream toluene concentration (50-200 ppm) and gas flow rate (1-5 L min(-1) or 0.48-0.096 s of gas residence time). The results suggested that the toluene removal efficiency (at 1 L min(-1), 100 ppm) increased (up to approximately 46%) either with increasing voltage (at 1000 Hz) or frequency (at 8.5 kV). The overall particle collection efficiency (at 1 L min(-1)) improved (up to approximately 60%) with increasing voltage (at 1000 Hz) whereas the penetration of the particles increased (up to approximately 40%) with increasing frequency (at 8.5 kV). The toluene removal efficiency (at 8.5 kV, 1000 Hz, 100 ppm) decreased (down to approximately 29%) with increasing gas flow rate while the particle collection efficiency decreased slightly (maintaining approximately 60%) regardless of the flow rate. In addition, the toluene removal efficiency (down to approximately 41%) and carbon dioxide selectivity (down to approximately 43%) decreased with increasing upstream toluene concentration (at 5 kV, 1000 Hz, 1 L min(-1)).
Byeon
Jeong Hoon
JH
LCD Division, Samsung Electronics Co., Ltd., Yongin 446-711, Republic of Korea.
Park
Jae Hong
JH
Jo
Yoon Shin
YS
Yoon
Ki Young
KY
Hwang
Jungho
J
D000336:Aerosols / Q000737:chemistry*; D000393:Air Pollutants / Q000737:chemistry / Q000302:isolation & purification*; D019149:Bioreactors; D002245:Carbon Dioxide / Q000737:chemistry; D002384:Catalysis; D004560:Electricity; D004563:Electrochemistry / Q000379:methods; D004583:Electrons; D052918:Environmental Restoration and Remediation; D004867:Equipment Design; D005740:Gases; D010316:Particle Size; D052638:Particulate Matter; D012997:Solvents / Q000737:chemistry; D014050:Toluene / Q000737:chemistry*
D000336:Aerosols; D000393:Air Pollutants; D005740:Gases; D052638:Particulate Matter; D012997:Solvents; D002245:Carbon Dioxide; D014050:Toluene