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Abstract <p>The possibility of using UHF energy in the synthesis of ZSM-5 type zeolite with a reduced content of Na<sup>+</sup> ions intended for the catalytic pyrolysis of biomass is investigated to find solutions for enhancing energy efficiency (shortening the period of crystallization) while preserving the morphological features of specimens, along with their textural and catalytic characteristics. The research subject was ZSM-5 type high-silica zeolite with a modulus of 50.0. The objects of study are the physico-chemical patterns that occur while microwaving a mixture of initial components and their subsequent hydrothermal crystallization. X-ray phase analysis and IR spectroscopy are used to determine the optimum time of exposure to microwaves for a mixture of initial ingredients and their subsequent crystallization, while keeping the content of the crystalline phase at a level of 80% or more. The results in this work are of interest from a fundamental viewpoint and can be used in optimizing existing industrial technologies.</p>

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Using Microwave Radiation to Intensify Crystallization in the Synthesis of ZSM-5 Type Zeolite

  • 期刊论文

  • 发表日期：

    2025年10月16日

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  • E. S. Severgina,
  • D. A. Kravchuk,
  • T. A. Kamanova,
  • R. N. Rumyantsev,
  • N. E. Gordina

摘要

Abstract

The possibility of using UHF energy in the synthesis of ZSM-5 type zeolite with a reduced content of Na+ ions intended for the catalytic pyrolysis of biomass is investigated to find solutions for enhancing energy efficiency (shortening the period of crystallization) while preserving the morphological features of specimens, along with their textural and catalytic characteristics. The research subject was ZSM-5 type high-silica zeolite with a modulus of 50.0. The objects of study are the physico-chemical patterns that occur while microwaving a mixture of initial components and their subsequent hydrothermal crystallization. X-ray phase analysis and IR spectroscopy are used to determine the optimum time of exposure to microwaves for a mixture of initial ingredients and their subsequent crystallization, while keeping the content of the crystalline phase at a level of 80% or more. The results in this work are of interest from a fundamental viewpoint and can be used in optimizing existing industrial technologies.