详细信息
Fe-Co-K/SiO_2催化剂催化F-T合成本征动力学的研究 ( EI收录)
Intrinsic Kinetics of Fischer-Tropsch Synthesis over Fe-Co-K/SiO_2 Catalyst
文献类型:期刊文献
中文题名:Fe-Co-K/SiO_2催化剂催化F-T合成本征动力学的研究
英文题名:Intrinsic Kinetics of Fischer-Tropsch Synthesis over Fe-Co-K/SiO_2 Catalyst
作者:马向东[1];孙启文[2];曹发海[1];应卫勇[1];房鼎业[1]
机构:[1]华东理工大学化工学院化学工程联合国家重点实验室;[2]上海兖矿能源科技研发有限公司,上海201203
年份:2007
卷号:36
期号:6
起止页码:591
中文期刊名:石油化工
外文期刊名:Petrochemical Technology
收录:CSTPCD;;EI(收录号:20072810698890);Scopus;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;
基金:高等学校博士学科点专项科研基金项目(20050251006)
语种:中文
中文关键词:F-T合成;本征动力学;铁-钴-钾/二氧化硅催化剂;氢气;一氧化碳
外文关键词:Fischer - Tropsch syntheses; intrinsic kinetics; iron - cobalt - potassium/silicon dioxide catalyst; hydrogen; carbon monoxide
摘要:采用浸渍法制备了Fe-Co-K/SiO2催化剂。在等温积分反应器中,在温度518~541K、压力1.00~2.60MPa、进料中n(H2):n(CO)=1.12~3.23、气态空速3000~4800h^-1的条件下,研究了在Fe-Co-K/SiO2催化剂上的F~T合成本征动力学。F-T合成中CO2的生成量很少,水煤气变换反应可不予考虑,生成烃为主要反应。以CO转化率的计算值和实验值的残差平方和为目标函数,采用Levenberg-Maquardt法对动力学参数进行优化,得到了F-T合成本征动力学模型参数,反应的活化能为78.9kJ/mol。在Fe-Co-K/SiO2催化剂上的F-T合成本征动力学模型的计算值与实验值的平均偏差为8.27%,模型的计算值与实验值符合较好。
Fe -Co -K/SiO2 catalyst was prepared by impregnation method. Intrinsic kinetics of Fischer- Tropsch( F- T) synthesis on the catalyst was studied in an isothermal integral reactor under conditions of temperature 518 -541 K, pressure 1.00 -2.66 MPa, n(H2) : n(CO) in feed 1.12 - 3.23 and gas hourly space velocity 3 000 - 4 800 h - 1. Since amount of CO2 produced in the F - T synthesis is negligible, water gas shift reaction can be ignored. Productions of hydrocarbons are main reactions in the F -T synthesis. Using residual sum of squares of experimental data and calculated data of CO conversion as object function, optimization of the model parameters was carded out by Levenberg - Marquardt method. Apparent activation energy of the reaction is 78.9 kJ/mol. The average deviation between experimental data and the calculated is 8.27 %. The model of intrinsic kinetics can truly simulate the experimental process.
参考文献:
正在载入数据...
