Tetrafluoroethylene 제조를 위한 R22 열분해반응을 일반적인 상압유통식 반응기에서 반응온도(665∼770℃), 체류시간(0.05∼0.6초) 및 N₂/R22 몰비(3.0∼7.0)를 변수로 수행하였다. 반응온도와 체류시간이 증가함에 따라 R22 전화율은 증가하였으나 TFE 선택도는 감소하였다. 희석제의 사용은 반응성의 향상을 가져왔으며 R22와의 혼합정도는 생성물의 조성에 큰 영향을 미치는 것으로 나타났다. 속도론으로부터 R22 열분해반응의 주반응은 CF₂ 생성반응으로 추정되었고 속도식은 다음과 같은 1차식으로 나타낼 수 있었다. kr= -0.5·f_(R22)·X＋(1＋0.5·f_(R22))ln 1/(1-X) 이때 속도상수(k)의 활성화에너지는 45.19-49.86㎉/㏖ 범위로 계산되었다.

Pyrolysis of R22 for tetrafluoroethylene was carried out using the conventional atmospheric flow reactor. The range of reaction temperature, residence time and N₂/R22 molar ratio were 665∼770℃, 0.05∼0.6 sec, and 3.0∼7.0, respectively. With increasing reaction temperature and residence time, R22 conversion increased, but selectivity of TFE decreased. The use of diluent(N₂) resulted in enhancing the reactivity, and the degree of mixing R22 with N₂ affected the composition of products clearly. The formation of CF₂ might be suggested as the key reaction for pyrolysis of R22 from kinetics experiment. The following first order equation fitted well with experimental results. kr=-0.5·f_(R22)·X＋(1＋0.5·f_(R22))ln 1/(1-X) The range of activation energy for the rate constant was obtained between 45.19㎉/㏖ and 49.86㎉/㏖.