ON THE ROLES OF Li IN Li-Pt/HZSM-5 CATALYSTS

被引:0
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作者
WANG Xin-Kui PENG Shao-YiInstitute of Coal Chemistry
Academia Sinica Taiyuan Shanxi 030001
机构
关键词
Pt; SM; Li; ON THE ROLES OF Li IN Li-Pt/HZSM-5 CATALYSTS;
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中图分类号
O643.3 [催化];
学科分类号
081705 ;
摘要
Catalytic dehydrogenation of propane over alkali promoted Pt/HZSM-5 is investigated. Among the catalysts tested in this work, 1%Li-Pt/HZSM-5 exhibits a much better improvement in propene selectivity. Reactionpathway on the catalyst is postulated as a synergetic effect of reversed hydrogenspillover and controlled acidity of the catalyst. Another function of Li in thesuppressing of hydrogenolysis activity by Pt is also observed.
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页码:353 / 360
页数:8
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