HWAHAK KONGHAK, Vol.23, No.6, 391-398, December, 1985
Ni/γ-Al2O3 촉매상에서 n-Heptane의 수소첨가 분해반응에 관한 연구
A Study of n-Heptane Hydrogenolysis over Ni/γ-Al2O3 Catalysts
초록
Ni/γ-Al2O3 촉매상에서 n-heptane의 수소첨가 분해반응을 350 ℃-400 ℃, 105Pa-50×105Pa의 범위에서 행하였다. 촉매는 500 ℃, 30×105Pa의 조건에서 수소를 53 L/hr로 보내주어 환원시킴으로써 활성화되었다.
반응의 주 생성물은 methane과 hexane이었고 이 반응의 율속단계는 350 ℃에서는 표면반응과 생성물의 탈착, 375 ℃에서는 생성물의 탈착이었다.
이 반응의 차수는 n-heptane에 대해서 외관상 1차였고 외관상활성화 에너지는 26.13 kcal/mole이었다.
반응의 주 생성물은 methane과 hexane이었고 이 반응의 율속단계는 350 ℃에서는 표면반응과 생성물의 탈착, 375 ℃에서는 생성물의 탈착이었다.
이 반응의 차수는 n-heptane에 대해서 외관상 1차였고 외관상활성화 에너지는 26.13 kcal/mole이었다.
The hydrogenolysis of n-heptane was studied over Ni/γ-Al2O3 catalysts in a fixed bed flow reactor. The ranges of operating conditions were between 350 ℃ and 400 ℃ in temperature and from 10 to 50 × 105 Pa in total pressure, respectively. The catalysts were activated by reduction with the flow of 53 L/hr of H2 at the temperature of 500 ℃ and the pressure of 30 × 105 Pa.
The main products were methane and hexane. The rate determining step was found to be surface reaction and desorption of the products at the temperature of 350 ℃, and it was desorption of the products at the temperature of 375 ℃. The apparent reaction order was first with respect to the concentration of n-heptane and the apparent activation energy was 26.13 Kcal/mole.
The main products were methane and hexane. The rate determining step was found to be surface reaction and desorption of the products at the temperature of 350 ℃, and it was desorption of the products at the temperature of 375 ℃. The apparent reaction order was first with respect to the concentration of n-heptane and the apparent activation energy was 26.13 Kcal/mole.