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US 12,179,156 B2Granted
Zeolite membrane complex, method of producing zeolite membrane complex, method of treating zeolite membrane complex, and separation method
AssigneeNGK Insulators, Ltd.
InventorsRyotaro Yoshimura, Kenichi Noda
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Abstract
A zeolite membrane complex includes a porous support and a zeolite membrane formed on the support. Water molecules are adsorbed in the zeolite membrane. A decreasing rate of water content in the zeolite membrane from 250° C. to 500° C. is 0.1% or more.
Claims10
A zeolite membrane complex, comprising:
- a porous support;
- and
- a zeolite membrane formed on said support, wherein
- water molecules are adsorbed in said zeolite membrane, and
- a decreasing rate of water content in said zeolite membrane from 250° C. to 500° C. is 0.1% or more.
2 more elements
A method of producing a zeolite membrane complex, comprising:
- a) immersing a porous support in a starting material solution to form a zeolite membrane on said support by hydrothermal synthesis;
- b) causing said zeolite membrane to adsorb water molecules in an environment of 40° C. or more and 5 MPa or more;
- and
- c) after said operation b), drying said support and said zeolite membrane at a temperature of 80° C. or higher and 200° C. or lower.
1 more element
A method of treating a zeolite membrane complex, comprising:
- a) heating a zeolite membrane formed on a support by hydrothermal synthesis to remove a structure-directing agent;
- b) causing said zeolite membrane to adsorb water molecules in an environment of 40° C. or more and 5 MPa or more;
- and
- c) after said operation b), drying said support and said zeolite membrane at a temperature of 80° C. or higher and 200° C. or lower.
1 more element
Dependencies are inferred from the claim text.