Pd/La0.8Ce0.2MnO3/ZSM-5的制备及其甲苯催化燃烧活性

王永强 肖丽 孙启猛 赵朝成 李石

引用本文: 王永强, 肖丽, 孙启猛, 赵朝成, 李石. Pd/La0.8Ce0.2MnO3/ZSM-5的制备及其甲苯催化燃烧活性[J]. 燃料化学学报, 2014, 42(9): 1146-1152. shu
Citation:  WANG Yong-qiang, XIAO Li, SUN Qi-meng, ZHAO Chao-cheng, LI Shi. Preparation of the Pd/La0.8Ce0.2MnO3/ZSM-5 catalyst and its performance in catalytic combustion of toluene[J]. Journal of Fuel Chemistry and Technology, 2014, 42(9): 1146-1152. shu

Pd/La0.8Ce0.2MnO3/ZSM-5的制备及其甲苯催化燃烧活性

    通讯作者: 王永强,Tel:13668868046,E-mail:wyqupc@163.com。
  • 基金项目:

    国家自然科学基金(51202294) (51202294)

    中央高校基本科研业务费专项资金(24720142054A) (24720142054A)

    中国石油大学(华东)研究生自主创新项目(13CX06054A)。 (华东)研究生自主创新项目(13CX06054A)

摘要: 以贵金属改性的钙钛矿为活性组分,通过等体积浸渍法制备了Pd/La0.8Ce0.2MnO3/ZSM-5催化剂,并采用XRD、BET、SEM和H2-TPR等技术对催化剂进行了表征。在固定床反应器上,对Pd/La0.8Ce0.2MnO3/ZSM-5催化剂上的甲苯为目标污染物的催化燃烧进行了研究,考察了焙烧温度、负载量及ZSM-5的性质对其催化活性的影响。结果表明,所得到Pd/La0.8Ce0.2MnO3催化剂仍保持钙钛矿型结构,Pd均匀的分布在催化剂表面,有利于催化剂活性的提高。当ZSM-5硅铝原子比为25、La0.8Ce0.2MnO3负载量为20%、焙烧温度为750℃时,La0.8Ce0.2MnO3/ZSM-5上甲苯的起燃温度和完全转化温度分别为200和279℃;加入0.3%的Pd后,Pd/La0.8Ce0.2MnO3/ZSM-5的催化活性明显提高,甲苯起燃温度下降了90℃,完全转化温度可低至230℃。

English

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  • 收稿日期:  2014-02-10
  • 网络出版日期:  2014-05-10
通讯作者: 陈斌, bchen63@163.com
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