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在前一阶段的工作中,发现La_2O_3/BaCO_3作为甲烷氧化偶联制乙烯的催化剂具有良好的活性与选择性。本文在对这一体系催化剂进行筛选、评价的基础上,选择其中编号为C82的催化剂进行了稳定性考察,并对500小时稳定性试验后的催化剂进行了一系列反应条件试验与红外光谱和x-光衍射分析。
In the previous work, it was found that La 2 O 3 / BaCO 3 has good activity and selectivity as a catalyst for methane oxidation to ethylene. Based on the screening and evaluation of this system catalyst, the stability of catalyst C82 was investigated. A series of reaction conditions were tested on the catalyst after 500 hours stability test. Light diffraction analysis.