Cracking Performance of Supercritical n-Decane with Mo-promoted Pt/CeO2-Al2O3 Catalysts

摘要

The catalytic performances of Pt/MoO3/CeO2-Al2O3 (PCA-M), Pt/V2O5/CeO2-Al2O3 (PCA-V), and Pt/MoO3/CeO2-ZrO2-Al2O3 (PCZA-M) are investigated using n-decane cracking in a plug flow reactor. The catalytic cracking activities of the catalysts are found to increase with the order of the strong acid amount: PCA-M > PCZA-M > PCA-V. Hence, it is concluded that the larger the strong acid amount the better the cracking activities. The gas yield of PCA-M increase by 5.8% at 700 degrees C compared to that of PCA-V, and its heat sink increases by 0.17 MJ/kg correspondingly. PCA-M has the greatest effects on the gas yields and heat sinks.