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首页> 外文期刊>天然气化学（英文版） >Effects of the Different Supports on the Activity and Selectivity of Iron-Cobalt Bimetallic Catalyst for Fischer-Tropsch Synthesis
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Effects of the Different Supports on the Activity and Selectivity of Iron-Cobalt Bimetallic Catalyst for Fischer-Tropsch Synthesis

机译：不同载体对费托合成铁钴双金属催化剂活性和选择性的影响

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摘要

硅石，氧化铝，和活性炭支持了铁钴催化剂被早期的湿受精准备。这些催化剂被赌注， X 射线衍射(XRD ) ，和规划温度的减小(TPR ) 描绘了。为公司加氢在不同搬运人上支持的铁钴的活动和选择在 1.5 MPa 的条件下面被学习， 493 K， 630 h (? 1 ) ，并且 1.6 的 H2/CO 比率。结果显示这项活动， C4 olefin/(C4 olefin+C4 石蜡) 在 Fe-Co/SiO2， Fe-Co/AC1， Fe-Co/A12O3 和 Fe-Co/AC2 的顺序的比率，和 C5 olefin/(C5 olefin+C5 石蜡) 减少。Fe-Co/SiO2 的活动到达了最大值。TPR 的结果证明 Fe-Co/SiO2 催化剂，到某程度不同。XRD 模式证明 Fe-Co/SiO2 催化剂与其它显著地不同；它有二衍射峰。活跃尖晶石阶段与支持被相关。给词调音：Fischer-Tropsch；二金属的催化剂；铁；钴；支持；硅石；氧化铝；活性炭；
机译：Silica, alumina, and activated carbon supported iron-cobalt catalysts were prepared by incipient wetness impregnation. These catalysts have been characterized by BET, X-ray diffraction (XRD), and temperature-programmed reduction (TPR). Activity and selectivity of iron-cobalt supported on different carriers for CO hydrogenation were studied under the conditions of 1.5 MPa, 493 K, 630 h-1, and H2/COratio of 1.6. The results indicate that the activity, C4 olefin/(C4 olefin+C4 paraffin) ratio, and C5olefin/(C5 olefin+C5 paraffin) decrease in the order of Fe-Co/SiO2, Fe-Co/AC1, Fe-Co/Al2O3 and Fe-Co/AC2. The activity of Fe-Co/SiO2 reached a maximum. The results of TPR show that the Fe-Co/SiO2catalyst is to some extent different. XRD patterns show that the Fe-Co/SiO2 catalyst differs significantly from the others; it has two diffraction peaks. The active spinel phase is correlated with the supports.

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