We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Study of Gas Phase m-Cresol Alkylation with Methanol on Solid Acid Catalysts.
- Authors
Acevedo, M.; Bedogni, G.; Okulik, N.; Padró, C.
- Abstract
The gas-phase alkylation of m-cresol with methanol was studied at 523 K on Al-MCM-41 and zeolites ZnY, HBEA, HZSM5 and HMCM22. The acidity was determined by ammonia TPD and FTIR of adsorbed pyridine. On acid sites of moderate strength (Al-MCM-41), initially the O-alkylation rate was higher than the C-alkylation rate. In contrast, formation of dimethylphenols by C-alkylation was highly favored on ZnY and HMCM22 which have both strong acidity although different nature; Lewis (ZnY) and Brønsted and Lewis (HMCM22). High selectivity of 2,5-DMP was observed on HZSM5, probably due to diffusional constraint. All catalysts, except Al-MCM-41, showed deactivation by coke formation. Graphical Abstract: [Figure not available: see fulltext.]
- Subjects
GAS phase reactions; CRESOL; ALKYLATION; METHANOL; ACID catalysts; ZEOLITE catalysts; PYRIDINE; FOURIER transform infrared spectroscopy
- Publication
Catalysis Letters, 2014, Vol 144, Issue 11, p1946
- ISSN
1011-372X
- Publication type
Article
- DOI
10.1007/s10562-014-1358-6