Scholarlink

<p>The results of a study on the stability of the activity and selectivity of Ga- and Zn-containing catalysts based on BEA zeolite in the oxidative dehydrogenation of propane with CO<sub>2</sub> have been analyzed. According to X-ray diffraction, nitrogen adsorption/desorption, and Raman spectroscopy data, the observed changes in catalytic activity and selectivity over 10 h of operation are attributed to surface carbonization involving Brønsted acid sites. The catalytic activity is restored after regeneration in a temperature-programmed oxidation mode (20% O<sub>2</sub> + 80% He, 650°C).</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Stability of Activity of Gallium- and Zinc-Containing Zeolite Catalysts in the Process of Propane Oxidative Dehydrogenation with CO2

  • 期刊论文

  • 发表日期：

    2026年7月7日

查看全文
  • S. M. Orlyk,
  • N. V. Vlasenko,
  • V. I. Chedryk,
  • O. Z. Didenko

摘要

The results of a study on the stability of the activity and selectivity of Ga- and Zn-containing catalysts based on BEA zeolite in the oxidative dehydrogenation of propane with CO2 have been analyzed. According to X-ray diffraction, nitrogen adsorption/desorption, and Raman spectroscopy data, the observed changes in catalytic activity and selectivity over 10 h of operation are attributed to surface carbonization involving Brønsted acid sites. The catalytic activity is restored after regeneration in a temperature-programmed oxidation mode (20% O2 + 80% He, 650°C).