| 학회 |
한국화학공학회 |
| 학술대회 |
2005년 봄 (04/22 ~ 04/23, 여수대학교) |
| 권호 |
11권 1호, p.1024 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Ammoxidation of m-xylene to isophthalonitrile over vanadia-titania composite aerogel catalysts |
| 초록 |
Vanadia-titania composite aerogel catalysts synthesized by the sol-gel method and subsequent supercritical drying were tested in the ammoxidation of m-xylene to isophthalonitrile (IPN). The vanadia-titania composite aerogels showed catalytically favorable properties such as high specific surface area, well developed mesoporous structure and nanosized particles. The corresponding composite xerogels and impregnated catalysts were prepared and compared. The reactions were carried out in the range of 100 ℃- 450℃ with gas hourly space velocity of 8,000-20,000 hr-1. The maximum yields of IPN were normally obtained at 350-400℃. The aerogel catalysts exhibited the lower activity for ammonia oxidation and higher selectivities to IPN. The ratio of ammonia to oxygen was found to be a key factor to determine catalytic activity. |
| 저자 |
최진순1, 신치범1, 서동진2, 박태진2, 이상득2
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| 소속 |
1아주대, 2한국과학기술(연) |
| 키워드 |
ammoxidation; vanadia; titania; aerogel; xylene
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| E-Mail |
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| 원문파일 |
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