Abstract

Carbon material (CM) based on shadbush C_Am (Amelanchier) wood pulp and a mixture of C_Am + AMS, where AMS is aluminum magnesium spinel, are used as a support for a Fe-containing catalyst promoted by Bi (0.6 wt %) for the hydrogenation of CO. The dynamics of the formation of iron carbides during the activation of iron oxides supported on the CM and CM–aluminum magnesium spinel mixture is studied, along with the effect bismuth has on this process. It is found that they already have nonzero magnetization at the stage of preparing the catalysts. It is shown that with Fe/C_Am, only Hägg carbide forms in a medium of CO/H₂ (1 : 1), while a mixture of Hägg carbides and ε'-Fe_2.2C forms when using Fe/(C_Am + AMS). The promotion of the Fe/(C_Am + AMS) catalyst by bismuth substantially increases the amount of formed Hägg carbide and affects the amount of ε'-Fe_2.2C negligibly.

中文翻译：

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用Shadbush（Amlamnchier）木浆制备的碳材料上负载的铁：碳化铋促进的含Fe催化剂用于CO加氢

摘要

基于Shadbush C _Am（Amelanchier）木浆的碳材料（CM）和C _Am + AMS的混合物（其中AMS为铝镁尖晶石）用作由Bi（0.6 wt％）促进的含铁催化剂的载体研究了负载在CM和CM-铝镁尖晶石混合物上的氧化铁活化过程中碳化铁形成的动力学，以及铋对该过程的影响。已经发现它们在制备催化剂的阶段已经具有非零磁化强度。结果表明，与铁/ C_上午，在CO / H的介质仅HAGG碳化物形式₂（1：1），而HAGG碳化物和的混合物ε' -铁_2.2使用Fe /（C _Am + AMS）时，C形成。促进的Fe /（C_上午由铋+ AMS）催化剂显着地提高形成HAGG碳化物的量和影响ε'-Fe量_2.2忽略地℃。