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中文摘要：
通过四次连续反应-再生循环实验对甲醇芳构化催化剂Ag/ZSM-5进行了失活再生研究,结果表明催化剂通过烧碳可以得到部分再生.对反应-再生后的催化剂进行了X射线衍射（XRD）、透射电子显微镜（TEM）表征,证实芳构化过程中催化剂的ZSM-5骨架结构保持完好,金属烧结也不严重.傅里叶红外光谱（FTIR）和氨-程序升温脱附（NH3-TPD）实验证实了反应生成的水使催化剂在475℃发生水热脱铝,进而导致Brφnsted酸流失及催化剂的芳构化反应能力不可逆下降.
英文摘要：
The deactivation and regeneration properties of the methanol aromatization catalyst, Ag/ZSM-5, were investigated by a continuous reaction-catalyst regeneration experiment over four cycles. The activity of the catalyst decreased gradually over the long reaction and was only partly recovered after coke burning. Characterization of the regenerated catalyst by X-ray diffraction （XRD） and transmission electron microscope （TEM） revealed that the ZSM-5 framework remained unchanged and that the sintering of the Ag nanoparticles was not serious. Analyses by Fourier transform Infrared spectroscopy （FTIR） and ammonia-temperature programmed desorption （NH3-TPD） experiment confirmed that the hydrothermal de-alumination of the catalyst by water in large amounts at 475℃ during aromatization resulted in a significant loss of Br nsted acidity. Consequently, an irreversible decrease in the aromatization ability of the catalyst was apparent.
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