Effect of dealumination on the catalytic activity of acid zeolites for the gas phase synthesis of MTBE

✍ Scribed by A.A. Nikolopoulos; A. Kogelbauer; J.G. Goodwin Jr.; G. Marcelin

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 672 KB
• Volume: 119
• Category: Article
• ISSN: 0926-860X
• DOI: 10.1016/0926-860x(94)85025-9

✦ Synopsis

The gas phase MTBE synthesis reaction was studied on a number of zeolite catalysts, in order to obtain a better understanding of the impact of acidity on zeolite activity for MTBE formation away from thermodynamic equilibrium limitations. The catalysts investigated included a series of dealuminated HY zeolites with different acid properties. In addition, H-ZSM-5, an amorphous silicaalumina, and Amberlyst-15 resin were investigated for comparison. An increase in acidity of the HY zeolites produced by dealumination was found to result in a significant enhancement in the intrinsic activity for MTBE formation. The ratio of extra-lattice to lattice A1 appears to be an important parameter for determining the catalytic behavior of zeolites for this reaction.