摘要
本文的表征方法是根据SAPO-18/SAPO-5硅铝磷分子筛样品的XRF测试结果中Al原子含量,来初步快速判断是否存在非分子筛骨架铝,然后采用NMR表征进行验证。分别将该方法应用到SAPO-18单一分子筛和SAPO-18/SAPO-5复合分子筛体系中,均能准确判断出分子筛样品中是否存在非分子筛骨架铝。
The paper proposed a method for preliminarily fast identification of non framework aluminum species according to the content of aluminum atom in an XRF test result of SAPO-18/SAPO-5 samples,and thenresults were validated using the NMR characterization method. When the method was applied to both aSAPO-18 single molecular sieve system and SAPO-18/SAPO-5 composite molecular sieve system,the non framework aluminum species in themolecular sieves can be accurately determined.
作者
冯琦瑶
邢爱华
张新锋
姜继东
马琳鸽
FENG Qiyao;XING Aihua;ZHANG Xinfeng;JIANG Jidong;MA Lin‘ge(Beijing Low-Carbon Clean Energy Institute,Beijing,102209)
出处
《神华科技》
2016年第5期69-71,81,共4页
Shenhua Science and Technology
