ALKYLATION OF ETHYLBENZENE BY ETHANOLE ON H-ULTRASIL ZEOLITE CATALYST, MODIFIED BY LANTANUM
Journal Title: Azerbaijan Chemical Journal - Year 2018, Vol 0, Issue 3
Abstract
The modified H-ultrasil zeolite maintained high crystallinity and high specific surface areas precursors testified by XRD, BET and NH3-TPD analysis. Effect of lanthanum concentration on the adsorptive, acidic and catalytic properties of H-ultrasil in the ethylbenzene ethylation reaction was investigated. Influence of modifying on catalytic properties of H-ultrasil zeolite is studied in a 300–4000C temperature interval. Under these conditions, selectivity of p-diethylbenzene in H-ultrasil is 42.1-44.4%. It is established that increasing concentration of lanthanum on H-ultrasil makes reduction of porous volume, essential decrease in concentration of the strong acid centers that in turn leads to increase selectivity on p-diethylbenzene. By the increase in concentration of lanthanum in H-ultrasil to 5.0 wt. % selectivity on p-diethylbenzene increases to 74.5%.
Authors and Affiliations
T. O. Gakhramanov, S. E. Mammadov, E. I. Akhmedov
Keywords
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- EP ID EP492457
- DOI 10.32737/0005-2531-2018-3-74-79
- Views 116
- Downloads 0
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