US 12,226,741 B2
Zeolite film composite body, method for producing same, and fluid separation method
Bo Liu, Kyoto (JP); and Katsunori Yogo, Kyoto (JP)
Assigned to RESEARCH INSTITUTE OF INNOVATIVE TECHNOLOGY FOR THE EARTH, Kyoto (JP)
Appl. No. 17/621,780
Filed by RESEARCH INSTITUTE OF INNOVATIVE TECHNOLOGY FOR THE EARTH, Kyoto (JP)
PCT Filed May 14, 2020, PCT No. PCT/JP2020/019275
§ 371(c)(1), (2) Date Dec. 22, 2021,
PCT Pub. No. WO2020/261795, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 2019-119548 (JP), filed on Jun. 27, 2019.
Prior Publication US 2022/0241732 A1, Aug. 4, 2022
Int. Cl. B01D 69/12 (2006.01); B01D 61/36 (2006.01); B01D 71/02 (2006.01); C01B 39/46 (2006.01); C04B 41/85 (2006.01)
CPC B01D 71/025 (2013.01) [B01D 61/363 (2022.08); B01D 71/0215 (2022.08); B01D 71/027 (2013.01); C01B 39/46 (2013.01); C04B 41/85 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A zeolite membrane composite, comprising:
a porous support; and
a zeolite membrane formed on a surface of the porous support, wherein
the zeolite membrane has an LTA-type crystal structure,
the zeolite membrane has a first atomic ratio: Si/Al of silicon element (Si) to aluminum element (Al) of 1.29 or greater and 1.60 or less,
the porous support has a first surface and a second surface, and has pores allowing the first surface and the second surface to communicate with each other, and the zeolite membrane is formed on at least one of the first surface and the second surface, and
a water selectivity represented by a ratio of the permeance of water to the permeance of methanol of 600 or greater, when placed in an aqueous methanol solution at 60° C. having a methanol concentration of 50 mass %, with a supply side pressure set at 0.1 MPa and a permeation side pressure set at 1 kPa.