Ion liquid supported mor zeolite molecular sieve, and preparation method and application thereof

CN122098486APending Publication Date: 2026-05-29NANJING TECH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING TECH UNIV
Filing Date
2024-11-28
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing technologies have not significantly improved the catalytic effect when synthesizing MOR zeolite molecular sieves using natural clinoptilolite, and the application potential of ionic liquid-supported porous materials in the fields of gas adsorption and separation has not been fully realized.

Method used

MOR zeolite molecular sieves with a Si:Al molar ratio of (7~8):1 and a loading of 2.5%~10% wt were prepared by loading specific amounts of ionic liquids, including 1-butyl-3-methylimidazolium tetrafluoroborate, 1-vinyl-3-butylimidazolium bromide, or 1-allyl-3-vinylimidazolium tetrafluoroborate, onto MOR zeolite molecular sieves. The dispersion and interaction of ionic liquids in the zeolite channels were optimized by combining acid hydrolysis and hydrothermal crystallization treatment.

Benefits of technology

This method achieves uniform dispersion and strong interaction of ionic liquids in the pores of zeolite molecular sieves, improving the adsorption capacity and separation performance of ethylene and ethane mixtures, especially significantly enhancing the selectivity in the separation of ethylene and ethane, and showing good prospects for industrial applications.

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Abstract

The application provides an ionic liquid loaded MOR zeolite molecular sieve adsorbent, in the technical scheme provided by the application, the ionic liquid organic cations are uniformly dispersed in the zeolite molecular sieve channel and have strong interaction force, and the structural stability is good. The application also provides application of the adsorbent in adsorbing and separating ethylene and ethane mixed gas, and the adsorbent can make the ethylene adsorption amount high and the ethylene and ethane separation performance good; meanwhile, the stability of the adsorbent is high, and the adsorbent has a good industrial application prospect.
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