Application of FAU-type zeolite membranes to vapor/gas separation under high pressure and high temperature up to 5MPa and 180°C

Autor:	Mitsuko Takada, Takashi Nakane, Kiminori Sato, Masahiko Matsukata, Kazunori Sugimoto, Yasushi Sekine
Rok vydání:	2007
Předmět:	Membrane reactor Hydrogen chemistry.chemical_element General Chemistry Permeation Condensed Matter Physics chemistry.chemical_compound Membrane chemistry Chemical engineering Mechanics of Materials Organic chemistry General Materials Science Pervaporation Gas separation Methanol Zeolite
Zdroj:	Microporous and Mesoporous Materials. 101:312-318
ISSN:	1387-1811
DOI:	10.1016/j.micromeso.2006.12.021
Popis:	Tubular FAU-type zeolite membrane was synthesized on porous alumina substrate with 80 cm long by a seeded growth method. Pervaporation experiments using a mixture of water (10 wt%)/ethanol (90 wt%) at 75 °C demonstrated superior permeation properties of this type of membrane showing the total flux of 4–10 (kg m−2 h−1) with the separation factor of 110–300. A part of the synthesized membrane with 10 cm long was applied to gas separation at high pressures of 1–5 MPa and high temperatures of 130 and 180 °C. Ternary mixtures of water, methanol and hydrogen were used for evaluating the permselectivities of FAU-type membrane. It was found that hydrogen permeation was strongly depressed in the presence of water and methanol. Preferential adsorption of water and methanol in the micropores of FAU-type zeolite possibly played an important role for the appearance of permselectivity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ca4a01bd915fffb262341418c1632852 https://doi.org/10.1016/j.micromeso.2006.12.021 Zobrazit plný text záznamu Full Text from ScienceDirect