| 학회 |
한국화학공학회 |
| 학술대회 |
2004년 가을 (10/29 ~ 10/30, 호서대학교(아산캠퍼스)) |
| 권호 |
10권 2호, p.2355 |
| 발표분야 |
촉매/반응공학 |
| 제목 |
Catalytic pyrolysis of difluorochloromethane to produce tetrafluoroethylene |
| 초록 |
The catalytic pyrolysis of difluorochloromethane (CHClF2, R22) over aluminum fluoride, calcium fluoride and their physical mixture was investigated and the effect of Cu addition on the conversion and selectivity was also studied. The catalytic pyrolysis of R22 over prepared catalyst was compared with a non-catalytic pyrolysis. All catalysts deactivated with time-on-stream. Alteration of conversion and selectivity as a function of reaction time was observed. In the catalytic pyrolysis of R22, the selectivity for trifluoromethane (CHF3, R23) decreased with time-on-stream, whereas the selectivity for tetrafluoroethylene (C2F4, TFE) increased. The conversion of R22 in the catalytic pyrolysis was significantly higher than that in the non-catalytic. The Cu-promoted catalysts were more selective toward TFE than unpromoted catalysts. The enhanced TFE yield by adding the metallic Cu catalysts can be explained by the increased heat transfer effect. In this study, the physical mixture catalysts of aluminum fluoride and calcium fluoride showed the highest selectivity and yield for TFE. |
| 저자 |
성대진1, 김준호1, 문상진1, 문동주2, 홍석인1
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| 소속 |
1고려대, 2한국과학기술(연) |
| 키워드 |
difluorochloromethane; R22; pyrolysis; tetrafluoroethylene; TFE
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| E-Mail |
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| 원문파일 |
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