A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
POROUS SUPPORT-ZEOLITE MEMBRANE COMPOSITE
A porous support-zeolite membrane composite comprising an inorganic porous support and a zeolite membrane provided on, wherein the zeolite membrane contains a zeolite having a microporous structure of 8-membered oxygen ring or less, and a molar ratio of SiO 2 /Al 2 O 3 in the zeolite membrane surface is larger by at least 20 than a molar ratio of SiO 2 /Al 2 O 3 in the zeolite membrane itself, or a water adsorption of the porous support-zeolite membrane composite at a relative pressure of 0.8, as determined from a water vapor adsorption isotherm of the porous support-zeolite membrane composite, is at least 82% of a water adsorption of the porous support-zeolite membrane composite under the same condition as above after one-week immersion of the porous support-zeolite membrane composite in an aqueous 90 mass% acetic acid solution at room temperature.
POROUS SUPPORT-ZEOLITE MEMBRANE COMPOSITE
A porous support-zeolite membrane composite comprising an inorganic porous support and a zeolite membrane provided on, wherein the zeolite membrane contains a zeolite having a microporous structure of 8-membered oxygen ring or less, and a molar ratio of SiO 2 /Al 2 O 3 in the zeolite membrane surface is larger by at least 20 than a molar ratio of SiO 2 /Al 2 O 3 in the zeolite membrane itself, or a water adsorption of the porous support-zeolite membrane composite at a relative pressure of 0.8, as determined from a water vapor adsorption isotherm of the porous support-zeolite membrane composite, is at least 82% of a water adsorption of the porous support-zeolite membrane composite under the same condition as above after one-week immersion of the porous support-zeolite membrane composite in an aqueous 90 mass% acetic acid solution at room temperature.
POROUS SUPPORT-ZEOLITE MEMBRANE COMPOSITE
ZUSAMMENSETZUNG AUS PORÖSEM SUBSTRAT UND ZEOLITHMEMBRAN
COMPOSITE SUPPORT POREUX-MEMBRANE ZÉOLITHIQUE
YAMADA MIKI (author) / TAKEWAKI TAKAHIKO (author) / HAYASHI MIKIO (author) / FUJITA NAOKO (author) / MIYAGI HIDEKAZU (author)
2020-12-23
Patent
Electronic Resource
English
PRODUCTION METHOD OF POROUS SUPPORT-ZEOLITE MEMBRANE COMPOSITE
| European Patent Office | 2016
| European Patent Office | 2019