Effect of temperature on ethanol conversion over the surface of Zr-modified zeolite ZSM-5

• Autorzy: Kuzmina Raisa Ivanovna , Pilipenko Anton Yurievich
• Języki publikacji: EN

Abstrakty

EN

In this paper, we have shown modification of high-silicon zeolite ZSM-5 by zirconium, and the results of ethanol conversion on this catalyst. Effect of process parameters on the selectivity of ethanol dehydration products was analyzed. In addition, a mechanism of aromatic hydrocarbons formation including reactions of dehydrogenation, dehydrocyclization and alkylation of intermediates was discussed. It was found that with increasing temperature a selectivity decreased for reactions of isomerization and increased selectivity for aromatic products and products of cracking reactions. The data also confirms that hexene-1 is an intermediate in the conversion process of ethanol and the catalyst system with 1% Zr-ZSM-5 has a bi-functionality. Catalytic properties of the system in the conversion of hydrocarbons are determined by the presence on their surface of both Broensted and Lewis acid sites.

Słowa kluczowe

EN

ethanol; dehydration; Zr-ZSM-5; products; selectivity; mechanism

• Czasopismo: Catalysis for Sustainable Energy
• Rocznik: 2014
• Tom: 2
• Numer: 1

Daty

otrzymano

2015-11-09

zaakceptowano

2015-11-12

online

2016-01-20

Twórcy

autor

Kuzmina Raisa Ivanovna

• Chemistry Institute. Saratov State
  University named after N. G. Chernyshevsky. 83 Astrakhanskaya
  Str., Building 1, Saratov 410012, Russian Federation

autor

Pilipenko Anton Yurievich

• Chemistry Institute. Saratov State
  University named after N. G. Chernyshevsky. 83 Astrakhanskaya
  Str., Building 1, Saratov 410012, Russian Federation

Bibliografia

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Identyfikatory

DOI

10.1515/cse-2015-0006