|
|||||
|
|
| FeCoMnK/BeO催化剂上二氧化碳加氢合成低碳烯烃的反应性能和原位FT-IR研究 | |
| 引用本文： | 李梦青,邓国才,陈荣悌,刘崇微,朱起明.FeCoMnK/BeO催化剂上二氧化碳加氢合成低碳烯烃的反应性能和原位FT-IR研究[J].催化学报,2000,21(1):71-74. |
| 作者姓名： | 李梦青 邓国才 陈荣悌 刘崇微 朱起明 |
| 作者单位： | 1. 天津大学化学工程研究所,天津,300072 2. 南开大学化学系,天津,300071 3. 清华大学化学系,北京,100084 |
| 摘 要： | 研究了FeCoMnK/BeO新型多组分催化剂上二氧化碳加氢的反应性能,考察了反应温度、空速及原料气组成对反应性能的影响. 结果表明,二氧化碳的转化率及烯烃/烷烃比值均高于氧化铝、硅胶或活性炭担载的催化剂. 在647 K, 3000 h-1, CO2/H2体积比为1/3的条件下,低碳烯烃的收率最高. 利用原位FT-IR技术研究了该催化剂上二氧化碳加氢反应的程序升温过程,提出了可能的反应机理. |
| 关 键 词： | CO2加氢 低碳烯烃 |
| 收稿时间： | 2000-02-25 |
| 修稿时间： | : |
Synthesis of Light Olefins from CO2 Hydrogenation on FeCoMnK/BeO Catalysts and in situ FT-IR Studies |
|
| LI Mengqing,DENG Guocai,CHEN Rongti,LIU Chongwei,ZHU Qiming.Synthesis of Light Olefins from CO2 Hydrogenation on FeCoMnK/BeO Catalysts and in situ FT-IR Studies[J].Chinese Journal of Catalysis,2000,21(1):71-74. | |
| Authors: | LI Mengqing DENG Guocai CHEN Rongti LIU Chongwei ZHU Qiming |
| Institution: | LI Mengqing 1,DENG Guocai 2,CHEN Rongti 2,LIU Chongwei 3,ZHU Qiming 3 |
| Abstract: | A novel FeCoMnK/BeO catalyst was prepared by impregnation method and evaluated in the synthesis of light olefins from carbon dioxide hydrogenation. It is found that the yield of light olefins reaches the highest under the conditions of 647 K, 3?000 h -1 and CO 2/H 2 molar ratio 1/3. On BeO supported catalyst, the yield of light olefins is much higher than that on Al 2O 3, SiO 2 and active carbon supported catalysts. By the studies of in situ FT IR, a possible mechanism is proposed on the basis of surface intermediates. |
| Keywords: | FeCoMnK/BeO catalyst beryllia supported catalyst carbon dioxide hydrogenation light olefins in situ Fourier transform infrared spectroscopy |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《催化学报》浏览原始摘要信息 | |
| 点击此处可从《催化学报》下载免费的PDF全文 | |