Multilayer composite membrane for hydrogen separation

By using a composite membrane with a sandwich structure on a porous substrate, and utilizing the catalytic effect of palladium alloy and graphene or graphene oxide layers, the problems of low hydrogen separation efficiency and high cost in existing technologies are solved, achieving efficient and low-cost hydrogen separation.

CN121311298APending Publication Date: 2026-01-09SAUDI ARABIAN OIL CO
0 Cites 0 Cited by

Patent Information

Application Number
CN202480037007.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-06-08
Filing Date
2024-05-28
Publication Date
2026-01-09

AI Technical Summary

Technical Problem

Existing technologies for separating hydrogen from gas streams suffer from low separation efficiency, low purity, and high cost, especially when separating impurity compounds.

Method used

Composite membranes employing sandwich structures include a porous substrate and a multilayer membrane. The multilayer membrane consists of a palladium or palladium alloy layer and a graphene or graphene oxide layer. Through catalysis, hydrogen molecules are split into hydrogen atoms or protons, and other compounds are blocked from passing through. The graphene or graphene oxide layer reduces the amount of palladium used and improves the stability of the membrane.

Benefits of technology

It improves hydrogen separation efficiency and purity, reduces manufacturing costs, and enhances the thermal and chemical stability of the membrane, making it suitable for industrial-scale hydrogen separation applications.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

A device includes a porous substrate and a multilayer film. The porous substrate has a pore structure configured to allow hydrogen molecules to diffuse through the porous substrate. The multilayer film is configured to split hydrogen molecules into at least one of hydrogen atoms or protons in response to contacting the hydrogen molecules in the gas stream. The multilayer film is configured to allow passage of hydrogen atoms or protons through the multilayer film while blocking passage of larger compounds than hydrogen molecules that may be present in the gas stream. The hydrogen atoms or protons bind after passing through the multilayer film to reform hydrogen molecules. The multilayer film includes a first metal layer, an intermediate layer, and a second metal layer.
Need to check novelty before this filing date? Find Prior Art