高温下经氨气处理得到的氮化HZSM-5能够保持原有分子筛良好的晶体结构和较高的比表面积.吡啶吸附红外光谱测试结果表明,氮化后的分子筛表面酸性有一定的改变.将此分子筛应用于乙苯烷基化反应中,发现对二乙苯的选择性有明显的提高,同时能够保持稳定的反应活性.
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