| Publication Type |
Journal Article |
| Title |
Catalytic Disproportionation of Ethylbenzene over Ln-Modified HZSM-5 Zeolites |
| Authors |
Kamran T. Mahmudov F. Sh Kerimli E. S. Mammadov A. V. Gurbanov N. F. Akhmedova S. E. Mammadov |
| Groups |
CCC |
| Journal |
PETROLEUM CHEMISTRY |
| Year |
2022 |
| Month |
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|
| Volume |
62 |
| Number |
8 |
| Pages |
933-941 |
| Abstract |
A series of lanthanide (Ln) modified zeolites, Pr/HZSM-5, Gd/HZSM-5, Ho/HZSM-5, and Yb/HZSM-5 have been prepared and characterized by XRPD, IR, and atomic absorption spectroscopies. In Ln/HZSM-5, concentration of the Bronsted acid sites decreases with the increase of ionic radii of Ln (Pr > Gd > Ho > Yb) and with the Ln loading, while concentration of the Lewis acid sites increases. The conversion of EB and production of diethylbenzenes (DEBs) over the Ln/HZSM-5 catalysts and parent HZSM-5 have been studied using a flow fixed-bed reactor; the reaction temperature was varied from 300 to 450 degrees C. The m-DEB and p-DEB isomers are the main products at the studied conditions. The highest yield of DEBs of ca. 22.2\% (7.8\%m-DEB and 14.4\%p-DEB) with EB conversion of 42.4\% was obtained over 5 wt \% Yb-HZSM-5 catalyst at 400 degrees C. |
| DOI |
http://dx.doi.org/10.1134/S0965544122060147 |
| ISBN |
|
| Publisher |
MAIK NAUKA/INTERPERIODICA/SPRINGER |
| Book Title |
|
| ISSN |
0965-5441 |
| EISSN |
1555-6239 |
| Conference Name |
|
| Bibtex ID |
WOS:000824915000001 |
| Observations |
|
