| 초록 |
In order to utilize and test as a catalyst for the aromatization using acetylene, a nanosheet zeolite ITQ-2 was shaped from MCM-22 zeolite precursor through a delamination process. In addition to MCM-22 zeolites which are calcined forms of the precursors, the resultant materials were prepared and featured in respect of surface properties and pore structure. The performance of ITQ-2 zeolites on aromatization was as good as that of MCM-22 zeolites. ITQ-2 zeolites had a substantial portion of external active sites due to the distant and thin-layer structure. Because of the reduced residence and, in other words, reaction time, the fact that the amount of C3-C8 aliphatic compounds are produced more than that of C6-C8 aromatic compounds resulted from aforementioned feature. There are three points we found; those were external surface area, the amounts of Brønsted acid sites, and deactivation rate. Finally, the reaction pathways of aromatization of acetylene was rebuilt. |
