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US 11,596,905 B2Granted
Method of preparing heterogeneous zeolite membranes
AssigneeKorea University Research and Business Foundation
InventorsJungkyu Choi, Kwan Young Lee, Yang-Hwan Jeong
Life of this patent
Estimating the term…
Abstract
Disclosed are a heterogeneous zeolite membrane and a method of preparing the same, and more particularly a heterogeneous zeolite membrane that has CHA and DDR zeolite structures by growing seed particles into a crystal structure different from that of the zeolite membrane and can thus separate CO2/N2 and CO2/CH4 even under wet conditions, a method of preparing the same, and a method of capturing and removing carbon dioxide using the membrane.
Claims7
A method of preparing a heterogeneous zeolite separation membrane comprising:
- (a) forming a seed layer by depositing zeolite particles having a DDR structure on a support;
- and
- (b) producing a CHA@DDR heterogeneous zeolite separation membrane by performing hydrothermal synthesis on the support having the seed layer in the presence of a CHA precursor solution.
Dependencies are inferred from the claim text.