| 合成气在K－Fe－MnO／Silicalite－2催化剂上转化为低碳烯烃的研究 I．K_2O助剂的作用 |
| |
| 引用本文： | 徐龙伢,王清遐,杨力,赵修松,徐奕德,黄家生. 合成气在K－Fe－MnO／Silicalite－2催化剂上转化为低碳烯烃的研究 I．K_2O助剂的作用[J]. 天然气化工, 1994, 0(6) |
| |
| 作者姓名： | 徐龙伢 王清遐 杨力 赵修松 徐奕德 黄家生 |
| |
| 作者单位： | 中国科学院大连化学物理研究所 |
| |
| 基金项目： | 国家“八·五”重点科技攻关课题 |
| |
| 摘 要： | Ｋ２Ｏ是催化剂Ｆｅ－ＭｎＯ／Ｓｉｌｉｃａｌｉｔｅ－２由合成气制低碳烯烃的有效助剂，Ｋ２Ｏ能明显提高催化剂活性及低碳烯烃选择性。Ｋ２Ｏ助剂将抑制部分铁的还原，但能增强催化剂对ＣＯ的吸附能力，从而能提高催化剂活性，抑制甲烷的生成，Ｋ２Ｏ助剂能抑制乙烯在催化剂表面的二次反应（尤其是乙烯的歧化反应），从而提高ＣＯ／Ｈ及反应制低碳烯烃的选择性。
|
| 关 键 词： | Silicalite－2分子筛，合成气，低碳烯烃，Fe－MnO催化剂，K_2O助剂 |
Production of light alkenes from syngas over K-Fe-MnO/silicalite-2 catalyst I. Effect of K_2O promoter |
| |
| Xu Longya, Wang Qingxia,Yang Li, Zhao Xiusong. Production of light alkenes from syngas over K-Fe-MnO/silicalite-2 catalyst I. Effect of K_2O promoter[J]. Natural Gas Chemical Industry, 1994, 0(6) |
| |
| Authors: | Xu Longya Wang Qingxia Yang Li Zhao Xiusong |
| |
| Abstract: | K2O is an available promoter for production of light alkenes from syngas over FeMnO/silicalite-2 catalyst, and it can obviouslyimprove both catalyst activity and selectivityto alkenes. K2O may prohibit reduction of Fepartially, but it can strengthen adsorption ofCO on the catalyst, which is favorable for en-hancing the activity of the catalyst and suppressing the formation of CH4. K2O can increase the selectivity of CO hydrogenation tolight alkenes by inhibiting the secondary reactions of C2H4 on the surface of the catalyst,especially the disproportionation of C2H4. |
| |
| Keywords: | silicalite-2 zeolite syngas light alkene Fe-MnO catalyst K_2O promoter |
| 本文献已被 CNKI 等数据库收录！ |
