In present research, dissipative particle dynamics (DPD), a mesoscopic simulation method, has been used to investigate the self-assembly process of a surfactant/tetraethylorthosilicate (TEOS)/water system in order to explore the structure formation mechanism of a mesoporous ZSM-5 zeolite. The ...
ZEOLITE ZSM-5 (ref. 1) is a member of a new class of shape selective catalysts with unique channel structures which differ from the familiar large-pore faujasite and small-pore zeolites such as Linde Type A and erionite. They also possess unusual catalyt
In the present study, Monte Carlo simulation was employed to design a sample holder for irradiation of ZSM-5 zeolite using the electron beam from MT25 microtron at JINR. The results obtained demonstrate that the holder should have the shape of a cylinder-hollow. The dose uniformity is proportio...
High structure-directing activity and specificity of templating action of tetrapropylammonium cations TPA+ as well as high concentration of framework-forming substances in the initial reaction mixtures contribute to the formation of zeolite ZSM-5 at relatively low temperature (100 °C) in the alkali...
ZSM-5zeolite ; SAPO-5zeolite ; core / shellbinarystructure ; hydrothermalsynthesismethod ; vapor- phasetransportmethod 复合分子筛由于具有多种活性中心和双重孔道 结构,在石油化工和环保等方面具有潜在的应用价 值 . 核壳结构复合分子筛由于其特殊的结构性质吸 引着众多研究者的关注,大量的文献对核壳结构分 ...
over ZSM-5 or beta zeolite: effect of the zeolite pore openings and of the hydrocarbons involved on the mechanism of alkylation. Ind Eng Chem Res, 1995, 34:1517-1528. 2 Frank B, Dahlke K, Emig G, et al. A monte-carlo simulation of ...
On the exceptional time-on-stream stability of HZSM-12 zeolite: relation between zeolite pore structure and activity ZSM-12 and several other 12-membered ring large-pore zeolites have been tested for the reforming of naphthenic hydrocarbon mixtures. It was found that ZSM-... W Zhang,PG Smirni...
LiX zeolite was the most active catalyst for attaining best yields of ethylbenzene and styrene. The effects of basicity, crystallinity and type of structure 选择语言:从 到 翻译结果1翻译结果2 翻译结果3翻译结果4翻译结果5 翻译结果1复制译文编辑译文朗读译文返回顶部 锂改性分子筛进行了研究作为催化剂...
Electron-beam irradiation of ZSM-5 catalyst with a designed sample holder: Simulation and experiment 2025, Nuclear Engineering and Technology Show abstract Hydroisomerization of n-dodecane over zeolite socony mobile-48-γ-Al<inf>2</inf>O<inf>3</inf> supported platinum catalyst: Insight into platin...
The siting of AI and of bridging OH groups in zeolite HZSM-5 is studied by defect energy minimization adopting the classical shell model. The small energy differences between the various lattice sites suggest that there would be little deviation from a random distribution of bridging hydroxyl group...