| 학회 |
한국화학공학회 |
| 학술대회 |
2010년 봄 (04/22 ~ 04/23, 대구 EXCO) |
| 권호 |
16권 1호, p.234 |
| 발표분야 |
미립자공학 |
| 제목 |
Analysis on SO2 Removal and (NH4)2SO4 Particle Growth in Dielectric Barrier Discharge-Photocatalyst Hybrid Process |
| 초록 |
We analyzed the effects of several process variables on the SO2 removal and ammonium sulfate ((NH4)2SO4) particle growth by the dielectric barrier discharge - photocatalyst hybrid process. The size and crystallinity of ammonium sulfate particles were examined by using TEM and XRD analysis. The dielectric barrier discharge reactor consisted of two zones: the first one is for plasma generation and the second one is for the formation and growth of ammonium sulfate particles. The first zone of reactor was filled with glass beads as a dielectric material. To enhance SO2 removal efficiency, the TiO2 photocatalysts were coated on glass beads by dip-coating method. SO2 was converted into sulfuric acid in the first zone of the reactor. (NH4)2SO4 was generated by the reaction between sulfuric acid and ammonia and grew continuously by particle coagulation and surface growth in the second zone of reactor. As the voltage applied to the plasma reactor or the pulse frequency of applied voltage increases, the SO2 removal efficiency increases. (NH4)2SO4 particles become bigger, moving inside the reactor. Larger particles are produced according to the increase of residence time or SO2 concentrations. |
| 저자 |
나소노바 안나, 김동주, 김교선
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| 소속 |
강원대 |
| 키워드 |
particle growth; ammonium sulfate particles; low temperature plasma-photocatalysts hybrid process; SOx removal
|
| E-Mail |
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| 원문파일 |
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