Authors: Dmytrzyk, Jaromir; Kotarba, Andrzej; Grabowska, Hanna; Klimkiewicz, Roman

Source: Research on Chemical Intermediates, Volume 30, Number 3, 2004 , pp. 337-342(6)

Publisher: VSP, an imprint of Brill

Abstract:

The influence of gas-phase methylation of phenol on the state of the Fe-Si-Cr-K oxide catalyst surface was investigated by thermodesorption of K atoms and ions. Changes in potassium desorption energies, as determined from Arrhenius-like plots, varied from 3.07 eV to 1.21 eV for the atoms and from 2.59 eV to 2.89 eV for ion desorption from the active and deactivated samples, respectively. The results were discussed in terms of transformation of the catalyst surface and formation of β-ferrite.

Keywords: POTASSIUM DESORPTION; CATALYTIC ALKYLATION; IRON OXIDE CATALYST.

Document Type: Research article

DOI: http://dx.doi.org/10.1163/156856704323034076

Publication date: 2004-04-01

Related content

• In this: publication
• By this: publisher
• In this Subject: Physical & Theoretical Chemistry
• By this author: Dmytrzyk, Jaromir ;  Kotarba, Andrzej ;  Grabowska, Hanna ;  Klimkiewicz, Roman

Website © Publishing Technology. Article copyright remains with the publisher, society or author(s) as specified within the article.

• Terms and conditions
• Privacy policy
• Information for advertisers