US 12,214,320 B2 · Separator membrane having hierarchical structure comprising mesopores, production method therefor and xylene separation method using same

Abstract

The present invention relates to a separator membrane having a hierarchical structure, a production method therefor and a xylene separation method using same, and to: a separator membrane having a hierarchical structure comprising mesopores, the separator membrane having mesopores introduced inside a microporous zeolite separator membrane, thereby being thin, having less defects and exhibiting high xylene permeation and separation performance; a production method therefor; and a xylene separation method using same.

Claims1

Dependent claims

A hierarchically structured zeolite membrane having a thickness of 0.1 to 5 μm and comprising micropores having a size of 2 nm or less and mesopores having a size of 2 to 20 nm,

wherein the hierarchically structured zeolite membrane comprises MFI zeolite and MEL zeolite, and
wherein the mesopores are isolated and embedded between the micropores.

Dependencies are inferred from the claim text.

Separator membrane having hierarchical structure comprising mesopores, production method therefor and xylene separation method using same

Life of this patent

Separator membrane having hierarchical structure comprising mesopores, production method therefor and xylene separation method using same

Life of this patent

Abstract

Claims1