Effect of Ultrasonic Treatment on the Gel Formation of MnSAPO-34 Catalysts in MTO Process
Publish place: 07th International Congress on Chemical Engineering
Publish Year: 1390
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICHEC07_342
تاریخ نمایه سازی: 25 فروردین 1394
Abstract:
In order to synthesize the MnSAPO-34 crystal with a pure CHA structure having a uniform size and desired catalytic activity, factors having influence on the crystallization at gel preparation should be considered. In this work Diethylamine and morpholine were used as the organic templates. A perfectly homogeneous gel was obtained by ultrasonic wave treatment before hydrothermal treatment. The results showed that ultrasonic-wave treatment was effective in makingparticle size smaller and in narrowing the size distribution for MnSAPO-34(DEA). In addition, a uniform distribution was obtained with excelent morphology was obtained for MnSAPO-34(Mor) in compared to the one without ultrasonic treatment. Ultrasonic treated MnSAPO-34 catalysts showed similar activity and product distribution with a yield of 84% in the MTO reaction at 400℃.
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Authors
Bahman Khabiri
School of Chemical Engineering, Iran University of Science & Technology, Tehran, Iran
Mehdi Alavi
School of Chemical Engineering, Iran University of Science & Technology, Tehran, Iran
Mohammad Haghighi
Reactor & Catalysis Research Center, Sahand New Town, Tabriz, Iran
Mojtaba Charghand
Reactor & Catalysis Research Center, Sahand New Town, Tabriz, Iran
Ghasem Kasaeian
School of Chemical Engineering, Iran University of Science & Technology, Tehran, Iran
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