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시클로헥산올의 탈수소화 반응에서 담지 구리촉매의 담체에 따른 활성저하 비교
Variation of Deactivation with Support in the Dehydrogenation of Cyclohexanol over Supported Copper Catalyst
HWAHAK KONGHAK, October 1996, 34(5), 605-609(5), NONE
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Abstract
시클로헥산올이 시클로헥산온으로 탈수소화되는 반응에서 마그네시아, 산화아연, 실리카에 담지된 구리 촉매의 활성저하 현상을 조사하였다. 반응 전후 촉매에서 구리 입자의 크기와 탄소 침적량을 조사하여, 담체와 활성저하 정도를 연관지어 검토하였다. 실리카에 담지된 구리 촉매는 다른 담체에 담지된 촉매에 비해, 구리 입자의 소결 진행속도가 상대적으로 느리고 탄소 침적량이 많지 않아 활성저하가 느리다고 설명되었다.
The deactivation of copper catalysts supported on magnesia, zinc oxide and silica in the dehydrogenation of cyclohexanol to was examined. The effect of support on the deactivation was discussed in the aspects of the sintering of copper particle and carbon deposition. Slow deactivation of copper catalyst supported on silica comparing with those supported on magnesia and zinc oxide was interpreted by relatively slow progressing rate of sintering of copper particle and small amount of carbon deposit.
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Sivaraj C, Reddy BM, Rao PK, Appl. Catal., 45, L11 (1988)
Jeon GS, Chung JS, Appl. Catal. A: Gen., 115(1), 29 (1994)
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