Preparation and characterization of nanoporous ceramic membranes for separation of water from ethanol

Autor:	Hazhir Ghahremani, Saeed Shirazian, Ferial Nosratinia
Rok vydání:	2014
Předmět:	Chromatography Materials science Nanoporous Scanning electron microscope Ocean Engineering Mullite medicine.disease Pollution Ceramic membrane Membrane Chemical engineering medicine Dehydration Pervaporation Zeolite Water Science and Technology
Zdroj:	Desalination and Water Treatment. :1-6
ISSN:	1944-3986 1944-3994
DOI:	10.1080/19443994.2014.903866
Popis:	In this work, high performance nanoporous Linde Type A (LTA)-type zeolite membranes were synthesized via secondary growth method. The used substrate for growing membrane layer was porous mullite. To synthesize defect-free zeolite film on porous mullite discs, synthesis duration was optimized for hydrothermal treatment. The morphology and structure of synthesized zeolite membranes were characterized by scanning electron microscopy and X-ray diffraction. The defect-free LTA-type zeolite membranes were obtained at synthesis duration of 3 h and synthesis temperature of 100°C. The separation performance of synthesized LTA-type zeolite membranes were evaluated in dehydration of ethanol using pervaporation process. Influence of feed composition on separation performance of LTA membranes was also investigated. The best membranes showed a separation factor of 9,400 and total flux of 9.8 kg m−2 h−1 for dehydration of 10:90 (wt.%) water/ethanol mixture.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::70c0ae7ee8e0a2d6ab76fad168c748ae https://doi.org/10.1080/19443994.2014.903866 Zobrazit plný text záznamu