Effect of the Si/Al ratio of HZSM-5 zeolite on the production of dimethyl ether before and after ultrasonication
Aboul-Fotouh, Sameh M.K.; Laila I. Ali; Naghmash, Mona A.; Aboul-Gheit, Noha A.K.;
Abstract
A series of as-synthesized HZSM-5 zeolites with different Si/Al ratios (25, 90, 120, 240 and 400) were post-treated by ultrasonication for an optimum time of 60 min. The morphology, acidity and textural properties of HZSM-5 were characterized with XRD, SEM, N2 adsorption and NH3-TPD techniques. The catalytic performance was evaluated by dehydration of methanol to dimethyl ether (DME), which is a promising gaseous automotive fuel in future. It was found that the Si/Al ratio of HZSM-5 had considerable impacts on its catalytic performance for dehydration of methanol to DME. Its activity increased with decreasing Si/Al ratio from 400 to 25. Ultrasonication of HZSM-5 could significantly improve its catalytic performance.
Other data
| Title | Effect of the Si/Al ratio of HZSM-5 zeolite on the production of dimethyl ether before and after ultrasonication | Authors | Aboul-Fotouh, Sameh M.K.; Laila I. Ali ; Naghmash, Mona A.; Aboul-Gheit, Noha A.K. | Keywords | Ultrasonication-HZSM-5-dimethyl ether-Si/Al ratio | Issue Date | 1-May-2017 | Journal | Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology | Volume | 45 | Issue | 5 | Start page | 581 | End page | 588 | ISSN | 02532409 | DOI | 10.1016/s1872-5813(17)30030-0 | Scopus ID | 2-s2.0-85027455128 |
Recommend this item
Similar Items from Core Recommender Database
Items in Ain Shams Scholar are protected by copyright, with all rights reserved, unless otherwise indicated.