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Title: Thin-sheet zeolite membrane and methods for making the same

Abstract

Zeolite membrane sheets for separation of mixtures containing water are provided, as well as methods for making the same. Thin, but robust, zeolite membrane sheets having an inter-grown zeolite crystal film directly on a thin, less than 200 micron thick, porous support sheet free of any surface pores with a size above 10 microns. The zeolite membrane film thickness is less than about 10 microns above the support surface and less than about 5 microns below the support surface. Methods of preparing the membrane are disclosed which include coating of the support sheet surface with a seed coating solution containing the parent zeolite crystals with mean particle sizes from about 0.5 to 2.0 microns at loading of 0.05-0.5 mg/cm2 and subsequent growth of the seeded sheet in a growth reactor loaded with a growth solution over a temperature range of about 45° C. to about 120° C.

Inventors:
Issue Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1805645
Patent Number(s):
10953372
Application Number:
16/272,885
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
DOE Contract Number:  
AC05-76RL01830; AR0000138; AR0000372; FC36-04G098014
Resource Type:
Patent
Resource Relation:
Patent File Date: 02/11/2019
Country of Publication:
United States
Language:
English

Citation Formats

Liu, Wei. Thin-sheet zeolite membrane and methods for making the same. United States: N. p., 2021. Web.
Liu, Wei. Thin-sheet zeolite membrane and methods for making the same. United States.
Liu, Wei. Tue . "Thin-sheet zeolite membrane and methods for making the same". United States. https://www.osti.gov/servlets/purl/1805645.
@article{osti_1805645,
title = {Thin-sheet zeolite membrane and methods for making the same},
author = {Liu, Wei},
abstractNote = {Zeolite membrane sheets for separation of mixtures containing water are provided, as well as methods for making the same. Thin, but robust, zeolite membrane sheets having an inter-grown zeolite crystal film directly on a thin, less than 200 micron thick, porous support sheet free of any surface pores with a size above 10 microns. The zeolite membrane film thickness is less than about 10 microns above the support surface and less than about 5 microns below the support surface. Methods of preparing the membrane are disclosed which include coating of the support sheet surface with a seed coating solution containing the parent zeolite crystals with mean particle sizes from about 0.5 to 2.0 microns at loading of 0.05-0.5 mg/cm2 and subsequent growth of the seeded sheet in a growth reactor loaded with a growth solution over a temperature range of about 45° C. to about 120° C.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {3}
}

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