| 担体对Fe-MnO催化剂CO加氢合成烯烃性能影响的TPSR表征 |
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| 引用本文： | 徐龙伢,王清遐,蔡光宇,陈国权,黄家生,徐奕德,刘炳灿.担体对Fe-MnO催化剂CO加氢合成烯烃性能影响的TPSR表征[J].催化学报,1993,14(6):420-425. |
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| 作者姓名： | 徐龙伢 王清遐 蔡光宇 陈国权 黄家生 徐奕德 刘炳灿 |
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| 作者单位： | 中国科学院大连化学物理研究所，中国科学院大连化学物理研究所，中国科学院大连化学物理研究所，中国科学院大连化学物理研究所，中国科学院大连化学物理研究所催化基础国家重点实验室，中国科学院大连化学物理研究所催化基础国家重点实验室，中国科学院大连化学物理研究所催化基础国家重点实验室 大连 116023，大连 116023，大连 116023，大连 116023，大连 116023，大连 116023，大连 116023 |
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| 摘 要： | 考察了不同担体担载的Ｆｅ－ＭｎＯ催化剂上ＣＯ加氢合成烯烃的反应。结果表明担体直接影响低碳烯烃选择性。通过对催化剂的ＣＯ，ＣＯ／Ｈ２，Ｃ２Ｈ４等吸附的ＴＰＳＲ表征及催化剂表面ＣＯ加氢微观反应的研究，证明以碱性担体为基质的ＰＢＣ催化剂具有强吸附ＣＯ能力，且生成的烯烃不易发生二次反应，因而ＰＢＣ催化剂具有较高的烯烃选择性；以酸性担体为基质的ＰＡＣ催化剂对ＣＯ为弱吸附，对Ｈ２为较强吸附，且烯烃会发生强烈的
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| 关 键 词： | 担体 催化剂 一氧化碳 加氢 烯烃 |
| 收稿时间： | 1993-12-25 |
TPSR CHARACTERIZATION OF THE SUPPORTED Fe-MnO CATALYSTS FOR CO HYDROGENATION |
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| Xu,Long-ya, Wang,Qing-xia,Cai,Guang-yu,Chen,Guo-quan,.TPSR CHARACTERIZATION OF THE SUPPORTED Fe-MnO CATALYSTS FOR CO HYDROGENATION[J].Chinese Journal of Catalysis,1993,14(6):420-425. |
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| Authors: | Xu Long-ya Wang Qing-xia Cai Guang-yu Chen Guo-quan |
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| Abstract: | It was shown by the results of CO hydrogenation on supported Fe--MnO catalysts that their selectivity for light olefins was affected by the support. TPSR characterization of CO, H2, CO/H2 and C2H4 adsorbed on catalyst was carried out. It was found that the catalyst PBC(Fe-MnO supported on basic support) was capable of stronger adsorbing CO and H2, and that the secondary reactions of C2H4 occurring over PBC catalyst surface was ambiguous, so PBC has high selectivity for light ole-fins; while PAC (Fe-MnO supported on acidic support) had only stronger adsorption for H2 and weaker adsorption for CO, meanwhile, the secondary reactions of C2H4 occurring over PAC were very strong, therefore, PAC was not fit for the production of light olefins. |
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| Keywords: | support Fe-MnO catalyst carbon monoxide hydrogenation olefin temperature programmed surface reaction |
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