国产航空煤油裂解催化剂Pt/ZrxTixAl1-2xO2的性能

催化学报 , 2014, 35(2): 175-184. doi: 10.1016/S1872-2067(12)60732-2

国产航空煤油裂解催化剂Pt/ZrxTixAl1-2xO2的性能

焦毅 ^1, , 王健礼 ^2, , 朱权 ^3, , 李象远 ^4, , 陈耀强 ^5,

1.四川大学化学学院,绿色化学与技术教育部重点实验室,四川成都610064

2.四川大学化学学院,绿色化学与技术教育部重点实验室,四川成都610064

3.四川大学化工学院,四川成都610064

4.四川大学化工学院,四川成都610064

5.四川大学化学学院,绿色化学与技术教育部重点实验室,四川成都610064

基金项目: 国家高技术研究发展计划(863项目,2006AA01A119) 高超声速冲压发动机技术重点实验室开放基金(20120103013) the Open Foundation of Key Laboratory on Hypersonic Scramjet Technology(20120103013) the National High Technology Research and Development Program of China(863 Program,2006AA01A119) 国家自然科学基金(91016002,J1103315) The work was supported by the National Natural Science Foundation of China(91016002,J1103315)

关键词： ZrxTixAl1-2xO2复合氧化物 , 管式涂层 , 催化裂解 , 吸热燃料 , 酸性

The performance of Pt/ZrxTixAl1-2xO2 as Kerosene cracking catalysts

Yi Jiao ^1, , Jianli Wang ^2, , Quan Zhu ^3, , Xiangyuan Li ^4, , Yaoqiang Chen ^5,

1.四川大学化学学院,绿色化学与技术教育部重点实验室,四川成都610064

2.四川大学化学学院,绿色化学与技术教育部重点实验室,四川成都610064

3.四川大学化工学院,四川成都610064

4.四川大学化工学院,四川成都610064

5.四川大学化学学院,绿色化学与技术教育部重点实验室,四川成都610064

Keywords： ZrxTixAl1-2xO2 composite oxides , Pipe coating , Catalytic cracking , Endothermic fuel , Acidity

采用共沉淀法制备了一系列ZrxTixAl1-2xO2复合氧化物载体材料,考察了其作为裂解催化剂载体对航空煤油裂解反应的影响.采用全自动吸附仪、X射线衍射、扫描电镜/能谱仪联用、NH3-程序升温脱附等手段对催化剂进行了表征.结果表明,当ZrO2∶TiO2∶Al2O3质量比为1∶1∶3时催化剂具有最大的比表面积和孔容;具有最强的表面酸性和最集中的强酸中心密度,且具有良好的再生功能.实验结果表明,载体ZrO2∶TiO2∶Al2O3质量比为1∶1∶3时催化剂上650℃裂解产气量较热裂解提高了2.1倍,700℃时提高1.4倍.另外,该系列载体材料经1000℃焙烧5h后,所制得的催化剂几乎失去了催化活性.

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