Hierarchy control of mfi zeolite membranes
Web15 de nov. de 2011 · In this Account, we describe our efforts to characterize microstructures of zeolite membranes and to understand the fundamental adsorption and diffusion behavior of permeating solutes. This Account will focus on the MFI membranes which have been the most widely used but will also present results on other types of zeolite membranes. WebIn this study, we demonstrated that the introduction of hierarchy easily enabled concurrent thickness reduction and orientation control of zeolite membranes. Specifically, hierarchical MFI zeolite membranes comprising higher degree of (h0h) preferentially oriented … In this study, we demonstrated that the introduction of hierarchy easily enabled …
Hierarchy control of mfi zeolite membranes
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Web1 de dez. de 2024 · Mobil-Type Five (MFI) zeolite membranes are studied in different separation processes due to their pore size of about 0.5 nm and good chemical stability … Web1 de abr. de 2024 · A high-flux and acid-resistant MOR zeolite membrane was applied to remarkably improve conversion. • A high conversion (99.3%) was obtained in a short reaction time of 480 min. • The membrane showed good acidic stability in the esterification after 8 reaction cycles. Abstract Download full-size image Keywords Esterification …
Web14 de mai. de 2015 · Efficient ceramic zeolite membranes for CO 2 /H 2 separation . D. Korelskiy, P. Ye, S. Fouladvand, S. Karimi, E. Sjöberg and J. Hedlund, J. Mater.Chem. A, 2015, 3, 12500 DOI: 10.1039/C5TA02152A . This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in … Web8 de set. de 2016 · Zeolite molecular sieves are indispensable materials for acid-based catalysis and separation processes. This article overviews zeolite-type microporous materials containing a secondary system of larger (meso-/macro-) pores. These materials, often referred to as hierarchical zeolites, show better performance in reactions where …
WebLiu, Y., et al.: Hierarchy Control of MFI Zeolite Membrane towards Superior Butane Isomer Separation Performance. Angewandte Chemie-International Edition. 60(14), 7659–7663 (2024) Mori, N., Tomita, T.: Separation of n-butane/iso-butane by self-supporting MFI membranes with various SiO2/Al2O3. Microporous Mesoporous Mater. 112(1–3), 88–96 ... WebIn this study, we demonstrated that the introduction of hierarchy easily enabled concurrent thickness reduction and orientation control of zeolite membranes. Specifically, hierarchical MFI zeolite membranes comprising higher degree of ( h 0 h ) preferentially oriented ultrathin (ca. 380 nm) selective top layers and porous intermediate layers on…
Web17 de out. de 2024 · The crystallization process of the nanocrystals of an MFI-type zeolite has been the subject of a number of works in recent years. Most of them focused on the crystallization of silicalite-1 with clear solutions producing crystals with sizes below 100 nm [ 35, 36, 37, 38, 39, 40, 41, 42 ].
WebHigh quality pure-silica MFI-type zeolite membranes are successfully prepared by simply controlling the amount of structure directing agent (SDA), i.e., tetrapropylammonium … city code sgnWeb30 de abr. de 2024 · Zeolite membranes can separate the desired component selectively by molecular sieving and selective adsorption. LTA-, MFI-, and FAU-type zeolite membranes were prepared in this study, and the permeation and separation performances were determined for the ternary mixture of NH 3, H 2 S, and N 2 to develop an NH 3 … dictionary bastardWeb2.1. Preparation of the MFI-Type Zeolite Membrane The MFI-type zeolite membrane was prepared from an α-alumina substrate (outer diameter: 10 mm, length: 30 mm) using a secondary growth method. Here, MFI-type zeolite seed crystals were prepared in accordance with the protocols from prev ious reports [11] and applied to the substrate via … city codes for japanWebIn this study, we demonstrated that the introduction of hierarchy easily enabled concurrent thickness reduction and orientation control of zeolite membranes. Specifically, … city code shanghaiWebHierarchy Control of MFI Zeolite Membrane towards Superior Butane Isomer Separation Performance Microstructural optimization (e.g., thickness and preferred orientation) represents a major concern for performance enhancement of … dictionary batheWeb16 de mar. de 2024 · MFI-type zeolitic membranes were prepared on the porous α-A2O3 support to investigate the separation properties of dichlorobenzene isomers. The … city code slcWeb7 de jan. de 2024 · In this study, we demonstrated that the introduction of hierarchy easily enabled concurrent thickness reduction and orientation control of zeolite membranes. … city code sjd