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Journal of Applied Sciences
  Year: 2010 | Volume: 10 | Issue: 21 | Page No.: 2602-2607
DOI: 10.3923/jas.2010.2602.2607
 
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The Role of Acid Strength of Modified NaX Zeoliteson Gas Phase Ethylation of Benzene
Sanghamitra Barman

Abstract:
The role of acid strength of modified NaX zeolites in gas phase ethylation of benzene were studied over Ce exchanged NaX zeolite of different types. Acidity of the modified zeolite was investigated by means of adsorbing ammonia at different temperature. The conversion of reactantsvaries with the acid strength as well as the different types of the zeolites. The strong acid sites are active centers while the weak acid sites are inactive. The influences of various process parameters such as temperature, space-time and the feed ratio of benzene to ethanol on benzene conversion over most acidic zeolite were studied. The kinetic and adsorption constants of the rate equations were estimated by the best fit. From the estimated kinetic constants, the activation energies and frequency factors for various reactions were determined. The activation energy values compared well with those reported by other investigators for same reactions over similar catalysts.
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How to cite this article:

Sanghamitra Barman , 2010. The Role of Acid Strength of Modified NaX Zeoliteson Gas Phase Ethylation of Benzene. Journal of Applied Sciences, 10: 2602-2607.

DOI: 10.3923/jas.2010.2602.2607

URL: https://scialert.net/abstract/?doi=jas.2010.2602.2607

 
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