Fe—Silicalite—2催化剂表面CO2加氢反应性能的研究

研究了Ｆｅ／Ｓｉｌｉｃａｌｉｔｅ－２催化剂ＣＯ２加氢低碳烯烃反应性能，利用ＣＯ２－ＴＰＤ，ＣＯ２／Ｈ２－ＴＰＳＲ和ＣＯ／Ｈ２－ＴＰＳＲ表征手段，考察了铁含量及ＭｎＯ助剂对Ｆｅ／Ｓｉｌｉｃａｌｉｔｅ－２催化剂ＣＯ２吸附脱附及加氢反应性能的影响，表明随铁含量增加可提高催化剂对ＣＯ２的吸附能力，有利于提高ＣＯ２加氢反应的转化率。

STUDY OF Fe/SILICALITE2 CATALYST FOR PRODUCING LIGHT OLEFINS FROM CO 2 HYDROGENATION

CO 2TPD, CO 2/H 2TPSR and CO/H 2TPSR were employed to investigate the catalytic performance of FeMnO/silicalite2 catalyst for the production of light alkenes from CO 2 hydrogenation. It has been shown that Fe is a active component of CO 2 hydrogenation for the synthesis of hydrocarbons The increment of its loading content can enhance the adsorption capacity of CO 2, accompanying the increment of CO 2 conversion and hydrocarbon formation Especially in H 2 atmosphere, the FT reaction is promoter with Fe loading increasing, causing the watergas shift reaction CO 2+H 2CO+H 2O shifting to the right direction and being favorable for the enhancement of CO 2 conversion MnO is an effective promoter for the production of light olefins from CO 2 hydrogenation With addition of MnO, the selectivity of light olefins, especially, the olefin/paraffin ratio were increased obviously