Corrosion-Resistant Hydrophobic MFI-Type Zeolite-Coated Mesh for Continuous Oil–Water Separation
نویسندگان
چکیده
منابع مشابه
Molecular sieving MFI-type zeolite membranes for pervaporation separation of xylene isomers.
Molecular sieving MFI-type zeolite membranes were prepared by a secondary growth method without using an organic template. Silicalite membranes with intercrystalline pores minimized or eliminated were obtained by this synthesis method which avoids the template removal step. The silicalite membrane exhibits molecular sieving characteristics with pervaporation separation factor for p-xylene to o-...
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1. Introduction 1. Introduction Information on mass transport in polycrystalline zeolite membranes is necessary for a theoretical estimation of the membrane performances. Zeolite membranes are usually prepared as thin layer of an assembly of small zeolite crystals including many intercrystalline regions. Thus, the intercrystal region would influence their individual diffusion properties, which ...
متن کاملCrystallographic Structure Determination of MFI-Zeolite Nanosheets
Ultrathin MFI-zeolite nanosheets can be packed on porous supports to create molecular sieve membranes. The nanosheets on porous support reduce morphological damage seen in regular MFIzeolite crystals [1]. MFI-zeolite belongs to pentasil family of zeolites where the periodic building unit (PerBU) is composed of 12 interconnected SiO4 tetrahedral (T12) units of 41m2 (D2d) symmetry [2]. Rotation o...
متن کاملPermeation and Separation Characteristics of Mfi Type Zeolite Membranes on Zirconia Intermediate Layer by Template-free Secondary Growth Method
MFI type zeolite membranes were synthesized on two types of supporting materials, alumina (α-alumina) and yttria-stabilized zirconia (YSZ) coated alumina. Membranes were prepared by template-free secondary growth method with multiple growth steps in order to minimize intercrystalline gaps. Gas permeation characteristics, thermal and hydrothermal stability for MFI type zeolite membranes were exa...
متن کاملIdentification of two types of exchangeable sites for monovalent copper ions exchanged in MFI-type zeolite.
Three different approaches have been used to characterize the state of exchanged copper ions in copper-ion-exchanged MFI (CuMFI) samples. (1) Two types of an ion-exchangeable site with different adsorption properties for N(2) or CO molecules were identified depending on the pre-treatment temperature (723 or 873 K) of a sample prepared by using an aqueous solution of CuCl(2). (2) The state of th...
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ژورنال
عنوان ژورنال: Industrial & Engineering Chemistry Research
سال: 2020
ISSN: 0888-5885,1520-5045
DOI: 10.1021/acs.iecr.9b05923