| Titre : | Study on alkylation of toluene with tert - butanol over La2O3 - modified HY zeolite (2010) |
| Auteurs : | Lin-bo Chen, Auteur ; Hong-jun Dong, Auteur ; Shi Li, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 49 N° 16, Août 2010) |
| Article en page(s) : | pp. 7234–7238 |
| Note générale : | Industrial chemistry |
| Langues : | Anglais |
| Tags : | Zeolite catalysts |
| Résumé : | Alkylation of toluene with tert-butanol was investigated over La2O3-modified HY zeolite catalysts in the microfixed bed reactor. The affect factors of conversion of toluene and the selectivity of tert-butyltoluene were studied. The main reaction products have been identified as p-tert-butyltoluene and m-tert-butyltoluene, La2O3 modified HY zeolite catalyst can significantly improve the selectivity of p-tert-butyltoluene. The result showed that 5% La2O3-modified HY zeolite catalyst was catalytic active (32.4% conversion of toluene), with para-selectivity near 82% at 473 K after 8 h. At the same time the catalysts were characterized by the X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) spectroscopy. The FT-IR results showed that the modifier could increase the concentration of weak B acid of HY zeolite and obviously improve the selectivity of p-tert-butyltoluene. |
| ISSN : | 0888-5885 |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie100695k |
