학회 | 한국화학공학회 |
학술대회 | 2006년 가을 (10/27 ~ 10/28, 고려대학교) |
권호 | 12권 2호, p.2557 |
발표분야 | 촉매 및 반응공학 |
제목 | Mesoporous/Microporous Hierarchical MFI Zeolites for Retardation of Catalyst Deactivation in Organic Reactions |
초록 | We developed a new synthesis strategy for direct, hydrothermal crystallization of zeolites having mesoporous/microporous hierarchical structure. Despite the disordered mesopores, the pore diameters were uniformly tailorable. The zeolite frameworks were highly crystalline and exhibited strong acidity. The hierarchical zeolites showed remarkably enhanced catalytic activity for bulky molecular transformation. The hierarchical MFI zeolite exhibited remarkably high resistance to deactivation in catalytic activity of various reactions, such as gas phase isomerization of 1,2,4 trimenthylbenzene & cumene cracking, and liquid phase esterification of benzyl alcohol with hexanoic acid. Such slow deactivation seems to be generalized to a phenomenon corresponding to the zeolite structures with mesoporous/microporous hierarchical nature. |
저자 | Rajendra 1 , 최민기 2 , 김정남 2 , 유 룡 1 |
소속 | 1 한국과학기술원, 2 한국과학기술원 화학과 |
키워드 | hierarchical |
VOD | VOD 보기 |
원문파일 | 초록 보기 |