负载型Ce、La催化氧化脱除柴油中有机硫化物

Ce基催化剂因其具有较强的储放氧功能,在催化氧化反应中有着广泛的应用。而其用于催化氧化脱除柴油中有机硫化物的研究,并未有报道。本文用负载法制备Ce、La高丰度稀土元素的催化剂,用于催化分子氧氧化脱除柴油中硫化物,旨在分析其催化氧化效果。结果表明:反应温度越高其催化氧化活性越大,柴油脱硫率最高达70%以上。

Effection of Oxidative Desulfurization of Diesel Fuel by Ce,La -loaded Aluminum Oxide

Based on the excellent oxygen storage/release capacity of Ce - loaded catalytic materials, they were widely used in many oxidation processes. But oxidative desulfurization in the diesel whether achieved by the system was unknown. The Ce, La -loaded Al2O3 were prepared by isometric impregnation. By the experiment, the optimum catalytic efficiency was studied under conditions of different temperatures reactor. The results showed that the higher temperature was the higher catalytic oxidative activity and the system could reduce the content of sulfur in diesel more than 70%.