钴基催化剂费托合成动力学模型  

Kinetics models of Fischer-Tropsch synthesis on the cobalt-based catalyst

作　　者：鲁丰乐[1] 张海涛[1] 马向东[1,2] 应卫勇[1] 房鼎业[1] 

机构地区：[1]华东理工大学化学工程联合国家重点实验室,上海200237 [2]河南科技大学化工与制药学院,河南洛阳471003

出　　处：《中国科技论文在线》2009年第9期632-637,共6页

基　　金：高等学校博士学科点专项科研基金(20050251006)

摘　　要：由于钴基催化剂的活性组分为Co,反应中CO_2的生成量很少,水煤气变换反应可不予考虑,所以钴基催化剂上烃的生成为主要反应。在费托合成碳化物机理的基础上,建立了烃生成的可能基元反应,以生成碳化物的基元反应为控制步骤,推导出8个钴基催化剂上CO消耗的F-T合成本征动力学模型。模型揭示了钴基催化剂费托合成机理,为反应器的工业设计提供了一定的理论基础。The activated phases were Co for the cobalt-based catalyst.The production of CO2 was trace,the reaction for the water gas shift was ignored.Formed hydrocarbon reaction was the main reaction of Fischer-Tropsch synthesis.Impossible elementary steps of the formed hydrocarbon were established on the base of the carbide mechanism.The elementary step of the carbide formation was the rate-controlling step.Eight intrinsic kinetics models of CO consumption were derived over the cobalt-based catalyst.The models display mechanism of Fischer-Tropsch synthesis and provide the basis for industry design of reactors.

关 键 词：催化 F-T合成 本征动力学 钴基催化剂 

分 类 号：TQ529.2[化学工程—煤化学工程]