Dehydration method and dehydration apparatus
AssigneeNGK Insulators, Ltd.
InventorsKenichi Noda, Makoto Miyahara, Katsuya Shimizu, Takeshi Hagio
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Abstract
A dehydration method is a dehydration method for selectively separating water from a mixture that contains water, and the method includes a step of supplying the mixture to a supply side space of a zeolite membrane having an ERI structure, and a step of making a pressure difference between the supply side space and a permeation side space of the zeolite membrane having an ERI structure.
Claims7
A dehydration method for selectively separating water from a mixture that contains water, using a zeolite membrane consisting of an ERI structure, the method comprising:
- a step of supplying the mixture to a supply side space of the zeolite membrane consisting of the ERI structure;
- and
- a step of making a pressure difference between the supply side space and a permeation side space of the zeolite membrane consisting of the ERI structure,
- wherein in an X-ray diffraction pattern of the zeolite membrane consisting of the ERI structure, a peak intensity of a (002) plane is at least 0.51 times or greater than a peak intensity of a (100) plane.
A dehydration apparatus comprising:
- a separation vessel configured to include a porous support, a zeolite membrane consisting of an ERI structure that is formed on the porous support, and a housing portion that is sectioned into a supply side space of the zeolite membrane consisting of the ERI structure and a permeation side space of the zeolite membrane consisting of the ERI structure;
- and
- a pressure changing apparatus configured to increase a pressure in the supply side space and/or reduces a pressure in the permeation side space,
- wherein in an X-ray diffraction pattern of the zeolite membrane consisting of the ERI structure, a peak intensity of a (002) plane is at least 0.51 times or greater than a peak intensity of a (100) plane.
Dependencies are inferred from the claim text.