Abstract
Tuning the morphology of heterogeneous catalysts is of paramount importance for the design of efficient processes and requires detailed information on the physicochemical characteristics of the materials. Four micro-/mesoporous composites with different morphologies were synthesized by a dual-templating method using two-step crystallization with different zeolite seed concentrations. This work demonstrates the dependence of selectivity on the catalyst nature in solid-acid alkylation. It was demonstrated that a high concentration of weak acid sites leads to dialkyltoluene products, whereas a high concentration of strong acid sites is beneficial for other side reactions. It was shown that the morphology of catalysts played a crucial role in solid-acid alkylation. The alkylation mechanism defined in this study with different contributions of weak and strong acid sites could provide a route to the development of effective solid-acid catalysts.
Original language | English |
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Pages (from-to) | 1994-2009 |
Number of pages | 16 |
Journal | Industrial and Engineering Chemistry Research |
Volume | 61 |
Issue number | 5 |
DOIs | |
Publication status | Published - 9 Feb 2022 |
MoE publication type | A1 Journal article-refereed |