Guangyu Liu , Peng Tian , Qinhua Xia , Zhongmin Liu
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引用次数: 18
摘要
研究了简单草酸处理提高SAPO-34在甲醇制烯烃反应中催化性能的有效途径。采用XRD、SEM、N2吸附-脱附、XRF、TG、29Si MAS NMR和NH3-TPD技术对样品进行了表征。结果表明，草酸处理能很好地调节SAPO-34的外表面酸度，使SAPO-34对C2H4的选择性和甲醇制烯烃反应的催化剂寿命大大提高。
An effective route to improve the catalytic performance of SAPO-34 in the methanol-to-olefin reaction
An effective route to improve the catalytic performance of SAPO-34 in the methanol-to-olefin reaction by simple oxalic acid treatment was investigated. The samples were characterized by XRD, SEM, N2 adsorption-desorption, XRF, TG, 29Si MAS NMR and NH3-TPD techniques. The results indicated that the external surface acidity of SAPO-34 was finely tuned by oxalic acid treatment, and the selectivity to C2H4 on SAPO-34 and the catalyst lifetime in the methanol-to-olefin reaction were greatly improved.
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