Effects of steaming on the shape selectivity and on the acidity of HZSM 5
β Scribed by Vasques, M. H. ;Ramoa Ribeiro, F. ;Gnep, N. ;Guisnet, M.
- Book ID
- 112682607
- Publisher
- Springer
- Year
- 1989
- Tongue
- English
- Weight
- 207 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0133-1736
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π SIMILAR VOLUMES
Effects of catalyst acidity and the restricted reaction volume afforded by HZSM-5 on the catalytic cracking of polypropylene are described. Polypropylene cracking by silica-alumina and HZSM-5 catalysts yields olefins as primary volatile products. In addition, HZSM-5 channels restrict carbenium ion r
## Tokyo By treating NaZSM-5 zeolite with SiCl4 vapour at 723-923 K, the ZSM-5 zeolite was dealuminated. The aluminium atoms on the external surface of ZSM-5 crystallites were removed more selectively than those in the pores. More selective dealumination took place at the higher temperatures. The