FeHZSM-5 molecular sieves – Highly active catalysts for catalytic cracking of isobutane to produce ethylene and propylene

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• 作者：Jiangyin Lu ; Zhen Zhao ; Chunming Xu ; Pu Zhang and Aijun Duan
• 关键词：FeHZSM-5 molecular sieve ; Catalytic cracking ; Isobutane ; Light olefins
• 刊名：Catalysis Communications
• 出版年：2006
• 出版时间：April 2006
• 年：2006
• 卷：7
• 期：4
• 页码：199-203
• 全文大小：157 K

文摘

Fe-modified HZSM-5 catalysts were firstly used for catalytic cracking of isobutane, and the influence of Fe-loading on the catalytic performances of FeHZSM-5 catalysts for the cracking of isobutane was also investigated. The results indicated that both the isobutane cracking activity and the selectivity to light olefins of FeHZSM-5 samples with a small amount of Fe were greatly enhanced compared with the unpromoted HZSM-5, and very high yields of total olefins and propylene were obtained. For example, for the FeHZSM-5 sample loading with 0.010 mmol/g Fe the total yield of olefins reached 65.6 % , and the yield of propylene was 32.4 % at 625 °C.