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H-ZSM-5와 Zn으로 개조된 H-ZSM-5 촉매를 이용한 n-butane의 탈수소화 반응에 관한 연구
양재춘,설용건,김길용 연세대학교 산업기술연구소 1997 논문집 Vol.29 No.1
The dehydrogenation of n-butane was studied on a series of H-ZSM-5 and Zn-ZSM-5 having various SiO₂/Al₂O₃ ratios(70. 100. 500). As SiO₂/Al₂O₃ratio is decreased, the conversion of n-butane and the selectivity to aromatics are increase, while that to olefins is decreased. In comparison with H-ZSM-5, Zn-ZSM-5 exhibited high selectivity to aromatics as well as enhanced total conversion of n-butane with decreasing olefins selectivity. The effects of Zn addition on n-butane dehydrogenation was explained by enhancement of n-butane conversion on acid sites by hydrogen reverse-spillover on Zn. Zn-ZSM-5, Zincaluminosilicate and Zincsilicate, that were synthesized with changing the distance between acid site and Zn, showed the differences in the reactivity, but much higher than H-ZSM-5 in the dehydrogenation of n-butane.