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Received October 6, 2014
Accepted November 14, 2014
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HY zeolite 촉매 상에서 Si/Al2 비가 2-Butanol 탈수반응에 미치는 영향
Effect of Si/Al2 Ratio on 2-butanol Dehydration over HY Zeolite Catalysts
공주대학교 화학공학부, 330-717 충남 천안시 서북구 천안대로 1223-24
Department of Chemical Engineering, Kongju National University, 1223-24 Cheonan-daero, Seobuk-gu, Cheonan 330-717, Korea
jkjeon@kongju.ac.kr
Korean Chemical Engineering Research, February 2015, 53(1), 116-120(5), 10.9713/kcer.2015.53.1.116 Epub 3 February 2015
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Abstract
HY 제올라이트 촉매 상에서 2-부탄올의 탈수반응을 통한 부텐 제조에 관한 연구를 수행하였다. 고정층 촉매 반응기에서 2-부탄올 탈수 반응을 수행하였다. HY 제올라이트 촉매의 Si/Al2 비가 증가할 때 2-부탄올의 전환율이 증가하는 경향을 보였는데 이는 산점의 세기가 증가했기 때문으로 해석할 수 있다. 2-부탄올의 탈수반응에 의해 생성된 1-부텐, 트랜스-2-부텐 및 시스-2-부텐의 선택도는 Si/Al2 몰 비의 변화에 큰 영향을 받지 않았다. 따라서, 본 연구에서 사용한 HY 제올라이트 촉매 중에서 Si/Al2 몰 비가 60인 촉매가 2-부탄올의 탈수 반응에서 1-부텐의 수율을 최대화하는데 가장 유리한 것을 알 수 있었다. HY (60) 제올라이트 촉매의 경우, 1-부텐의 수율을 최대화하기 위한 최적 반응 온도는 250 oC 이었다.
Synthesis of butenes through dehydration of 2-butanol was investigated over HY zeolite catalysts. 2-Butanol dehydration reaction was carried out in a fixed bed catalytic reactor. 2-Butanol conversion was increased with increase of Si/Al2 ratio of HY zeolite catalysts, which can be ascribed to increase of acid strength with increase of Si/Al2 ratio. Selectivities to 1-butene, trans-2-butene, and cis-2-butene were not greatly influenced by the change of the Si/Al2 ratio of HY zeolite. As a result, it was advantageous to use a HY zeolite catalyst with 60 Si/Al2 ratio for maximizing the yield of 1-butene in the dehydration of 2-butanol. The optimal reaction temperature for maximizing the yield of 1-butene was 250 oC over HY (60) catalyst.
Keywords
References
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