摘要
用气流粉碎法将 Na ZSM- 5和 Na Y分子筛粉碎成微粉 ,作了粒度分布及比表面测定 ,根据吡啶吸附红外光谱分析其 B、L 酸中心的变化 ,粉碎后 HZSM- 5催化正己烷裂化和 HY催化正十六烷裂化的催化活性有显著增强 .
The NaZSM 5 and NaY molecular sieve are pulverized by air stream to form fine particles The graininess distribution and specific surface area are determined The change of B and L acid centers is analysed based on IR absorption spectra Catalytic activities of hexane cracked by HZSM 5 and hexadecane cracked by HY are improved apparently
出处
《沈阳工业学院学报》
2001年第2期75-78,共4页
Journal of Shenyang Institute of Technology
