| CATALYTIC BEHAVIOR OF DOPED MTiO_3 CATALYSTS FOR OXIDATIVE DEHYDROGENATION OF ETHANE |
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| 引用本文： | 陈铜,李文钊,于春英,徐桂芬. CATALYTIC BEHAVIOR OF DOPED MTiO_3 CATALYSTS FOR OXIDATIVE DEHYDROGENATION OF ETHANE[J]. 天然气化学杂志, 1998, 7(4): 283-290 |
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| 作者姓名： | 陈铜 李文钊 于春英 徐桂芬 |
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| 作者单位： | 中国科学院大连化学物理研究所 |
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| 摘 要： | 用Ｌｉ＋部分替代ＭＴｉＯ３（Ｍ＝Ｃａ、Ｓｒ）催化剂中的Ｔｉ４＋，明显地提高了乙烷氧化脱氢（ＯＤＨＥ）反应中乙烯的选择性。在ＣａＴｉ０．９Ｌｉ０．１Ｏ３－δ催化剂上，反应温度为８５０℃时，乙烯选择性为７７．４％，乙烷转化率为８１．７％。Ｌｉ掺杂的作用是增加了催化剂的Ｐ型半导性和未充分还原的氧物种数目。
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| 关 键 词： | 乙烷 氧化脱氢 掺杂钙钛矿 |
CATALYTIC BEHAVIOR OF DOPED MTiO3 CATALYSTS FOR OXIDATIVE DEHYDROGENATION OF ETHANE |
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| Tong Chen,Wenzhao Li,Chunying Yu,Guifen Xu. CATALYTIC BEHAVIOR OF DOPED MTiO3 CATALYSTS FOR OXIDATIVE DEHYDROGENATION OF ETHANE[J]. Journal of Natural Gas Chemistry, 1998, 7(4): 283-290 |
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| Authors: | Tong Chen Wenzhao Li Chunying Yu Guifen Xu |
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| Affiliation: | Dalian Institute of Chemical Physics, The Chinese Academy of Sciences Dalian, Liaoning 116023 |
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| Abstract: | When Li + was partially substituted for Ti 4+ in MTiO3 (M=Ca, Sr), a remarkable improvement in the C2H4 selectivity was observed for the oxidative dehydrogenation of ethane (ODHE). A C2H4 selectivity of 77.4% and a C2H6 conversion of 81.7% could be obtained over CaTi0.9Li0.1O3-|? at 850oC. The effects of Li doping were explained by the increment of p semiconductivity and non fully reduced oxygen species. |
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| Keywords: | ethane oxidative dehydrogenation doped perovskite |
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