Catalytic Cracking of RP-3 Jet Fuel over Pt/CeO2鈥揂l2O3 by Adding Cu/ZSM-5

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• 作者：Yi Jiao ; Jianli Wang ; Quan Zhu ; Xiangyuan Li ; Yaoqiang Chen
• 刊名：Energy & Fuels
• 出版年：2014
• 出版时间：August 21, 2014
• 年：2014
• 卷：28
• 期：8
• 页码：5382-5388
• 全文大小：320K
• ISSN：1520-5029

文摘

Cu/ZSM-5 (CZ) zeolite and Pt/CeO₂鈥揂l₂O₃ (PCA) composite catalysts (PCA, PCA + CZ, and CZ) were prepared using the impregnation method, the as-prepared catalysts were characterized using an automatic adsorption instrument, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and temperature-programmed desorption (TPD). Catalytic cracking of Chinese number 3 jet fuel (RP-3) was used to examine the catalytic activities and thermal stabilities of the as-prepared catalysts. It was found that PCA + CZ had better catalytic cracking activities and high-temperature stabilities compared to the other catalysts. This is in well accordance with an increase in the strong acid amount and the appearance of a bimodal structure of PCA + CZ. Rapid deactivation of the heat sink over CZ at 700 掳C was possibly caused by their poor stabilities under high temperatures. The addition of CZ onto PCA to form a composite catalyst may be an effective approach to maintain both catalytic activity and thermal stability (>650 掳C).