| 학회 | 한국화학공학회 |
| 학술대회 | 2010년 봄 (04/22 ~ 04/23, 대구 EXCO) |
| 권호 | 16권 1호, p.954 |
| 발표분야 | 촉매 및 반응공학 |
| 제목 | Hydrodechlorination of CHClF2 in Supercritical Fluids |
| 초록 | CHClF2 (R-22) is one of the hydrochlorofluorocarbons (HCFCs), which has beneficial physicochemical properties such as stability, non-toxicity, and non-flammability. R-22 is widely used in refrigerant applications as a refrigerator and air conditioner. However, R-22 include chlorine, lead to depletion of the ozone layer and to enhance the global warming effect. For that reason, Globals agreed this problem and try to phase-out HCFCs. In this study, hydrodechlorination of R-22 has been performed over Pd, Pt, Ru and Ni on high-surface-area support used as catalysts. The catalysts were characterized by IPC, XRD, BET and TEM. Catalyst prior to reduction. Reaction temperature and pressure were fixed to 300, 400℃ and 100bar. The reaction time took 8hr. Starting the supercritical phase reaction, CHF3 (R-23), CH2F2 (R-32), CH4 (R-50) were the primary product. Under the Ni catalyst reaction, R-32 yield are in the range of 37-31% and selectivity is in the range of 60-78%. |
| 저자 | 김대우1, 김재훈1, 김재덕1, 강정원2 |
| 소속 | 1한국과학기술(연), 2고려대 |
| 키워드 | Hydrodechlorination; CHClF2; R-22; R-32; Supercritical Fluids |
| 원문파일 | 초록 보기 |
