| 학회 |
한국공업화학회 |
| 학술대회 |
2005년 봄 (05/13 ~ 05/14, 충남대학교) |
| 권호 |
9권 1호 |
| 발표분야 |
촉매 |
| 제목 |
Ag/HY catalyst for the toluene adsorption and oxidation : the effect of zeolite's hydrophobicity |
| 초록 |
The Ag/HY catalyst was suggested as a good candidate for the control of low concentration VOCs (volatile organic compounds) by an adsorption-oxidation combined process. In this study, the effect of hydrophobicity (or Si/Al ratio) of zeolite HY on the adsorption and catalytic oxidation of toluene were investigated. The hydrophobic HY zeolite (Si/Al=80) showed superior adsorption capacity to the hydrophilic HY zeolite (Si/Al=5.1) at a low partial pressure region. The activity of Ag/HY(x=Si/Al ratio) catalyst for toluene oxidation increased with hydrophobicity at a fixed silver loading of 6 wt%. The CO2 selectivity was also enhanced with the increase of Si/Al ratio. It could be inferred that the hydrophobic nature of zeolite support should be important not only for enhancing the VOC adsorption properties but also for increasing the catalytic activity and selectivity toward complete oxidation. |
| 저자 |
백세원, 김정랑, 임선기
|
| 소속 |
한국과학기술원 |
| 키워드 |
Silver; HY; adsorption; oxidation; zeolite; hydrophobicity
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| E-Mail |
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