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Abstract <p>A series of additives based on Fe(III)-modified MFI, FAU, and FER zeolites were investigated with focus on their efficiency in reducing NO<sub><i>x</i></sub> in cracking catalyst regeneration flue gases. The zeolite efficiency was found to depend on the zeolite framework type and the modification method. The Fe/MFI additives exhibited excellent performance. The additives prepared by ion exchange—and distinguished by uniform distribution of highly active metal ions (Fe<sup>3+</sup>)—reached a NO<sub><i>x</i></sub> reduction efficiency of 45.4%.</p>

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Efficiency of Fe/MFI, Fe/FAU, and Fe/FER Zeolites: Reduction of NOx in Cracking Catalyst Regeneration Flue Gas

  • 期刊论文

  • 发表日期：

    2025年3月18日

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  • E. O. Kuziuberdina,
  • V. A. Koveza,
  • T. V. Bobkova,
  • O. V. Potapenko

摘要

Abstract

A series of additives based on Fe(III)-modified MFI, FAU, and FER zeolites were investigated with focus on their efficiency in reducing NOx in cracking catalyst regeneration flue gases. The zeolite efficiency was found to depend on the zeolite framework type and the modification method. The Fe/MFI additives exhibited excellent performance. The additives prepared by ion exchange—and distinguished by uniform distribution of highly active metal ions (Fe3+)—reached a NOx reduction efficiency of 45.4%.