Zeolite Membrane Composite Crystal Orientation for Dense Separation
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Solution Overview
Problem
Existing zeolite membrane composites have limitations in separation performance, necessitating the development of more efficient methods for producing purified components.
Innovation Solution
A zeolite membrane composite with specific X-ray diffraction peak intensity ratios and an SiO2/Al2O3 molar ratio, enhancing the orientation and growth of zeolite crystals to form a dense membrane with high separation performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional zeolite membrane composites are used, then basic separation function is provided, but separation performance is insufficient
Solution Approach 1:
The patent applies parameter changes by controlling the SiO2/Al2O3 molar ratio within 6-500 and specifying the integrated intensity ratio of X-ray diffraction peaks (2θ=9.6°)/(2θ=20.8°) to be 6.0 times or more. These parameter optimizations enable the zeolite membrane to achieve both high separation performance and reliable purification capability simultaneously.
Solution Approach 2:
The patent uses composite materials by forming a zeolite membrane on an inorganic porous support to create a zeolite membrane composite. This composite structure combines the separation properties of zeolite with the mechanical strength and porosity of the support, achieving high separation performance while maintaining structural reliability.
2Productivity
If zeolite membrane composite is used for purification, then separation function is achieved, but production efficiency needs improvement
Solution Approach 1:
The patent optimizes production efficiency through parameter changes by controlling the SiO2/Al2O3 molar ratio (6-500) and the X-ray diffraction peak intensity ratio (2θ=9.6°)/(2θ=20.8°) ≥ 6.0. These parameters ensure rapid crystallization and formation of highly oriented zeolite structures, achieving both high productivity and excellent separation performance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The composite achieves improved separation performance by ensuring a high ratio of integrated intensities in X-ray diffraction patterns, resulting in a dense membrane with reduced defects and enhanced purification capabilities.
Implementation Method 1
In an X-ray diffraction pattern obtained by irradiating a surface of the zeolite membrane with X-rays at a minimum incident angle that allows the X-rays to pass through the zeolite membrane
Implementation Method 2
an integrated intensity of a peak at or around 2θ=9.6° is 6.0 times or more an integrated intensity of a peak at or around 2θ=20.8°
Implementation Method 3
causing one component contained in a mixture of gases or liquids to pass through a zeolite membrane of a zeolite membrane composite so that the one component is separated from the mixture
Implementation Method 4
a mixture containing a first component for which the zeolite membrane of the zeolite membrane composite has higher permeability and a second component for which the zeolite membrane of the zeolite membrane composite has lower permeability
Data Source
AI summary
The object of an aspect of the present disclosure is to provide a zeolite membrane composite having high separation performance. A zeolite membrane composite in accordance with an aspect of the present disclosure has an inorganic porous support and a zeolite membrane which is formed on a surface of the inorganic porous support. In an X-ray diffraction pattern obtained by irradiating a surface of the zeolite membrane with X-rays at the minimum incident angle that allows the X-rays to pass through the zeolite membrane, an integrated intensity of a peak at or around 2θ=9.6° is 6.0 times or more an integrated intensity of a peak at or around 2θ=20.8°.