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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received January 29, 2008
Accepted March 14, 2008

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Synthesis of superacidic mesoporous alumina and its application in the dehydration of glycerol

Lina Yang Ji Bong Joo¹ You Jung Kim¹ Seogil Oh¹ Nam Dong Kim¹ Jongheop Yi^1†

Department of Petrochemical Engineering, Liaoning Shihua University, Fushun 113001, China ¹School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Shinlim-dong, Gwanak-gu, Seoul 151-742, Korea

rothario@gmail.com

Korean Journal of Chemical Engineering, September 2008, 25(5), 1014-1017(4), 10.1007/s11814-008-0164-5

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Abstract

Superacid ZrO2/SO42- (SZ) was supported on mesoporous alumina (MA) to synthesize a novel superacid catalyst (SZMAP) with high active surface area. The synthesized catalyst was characterized by both physical and chemical methods, including XRD, BET, NH3-TPD and TEM. The prepared superacidic mesoporous alumina (SZMAP) showed typical gamma-alumina phase patterns and uniform mesoporous structures with a regular channel arrangement. NH3-TPD analysis indicated that SZMAP has superacidic characteristics. The SZMAP catalyst was used in the dehydration of glycerol to acrolein. Results showed that SZMAP showed much higher catalytic activity than the bulk superacid, ZrO2/SO42-. (SZ), and MA due to the high dispersion of active SZ molecules, which results from a large surface area and uniform mesopores of mesoporous alumina.

Keywords

Mesopore γ-Alumina ZrO2/SO42-. Super Acid Acrolein

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