摘要
采用非等温法对Fe_2O_3催化剂催化花生壳的热解进行了研究,用双外推法对花生壳热解过程进行了动力学分析,获得了相应的动力学参数。实验结果表明,升温速率的增加可以提高花生壳的热解速率;Fe_2O_3催化剂的加入促进了花生壳的热解,使得热解后的最终失重量增加了51.19%。动力学研究结果表明,Fe_2O_3催化剂没有改变热解过程的反应机理,其动力学机理函数始终保持为Mample单行法则,机理函数的积分式为-ln(1-α)。两种条件下的热解活化能分别为153.30kJ/mol和134.22kJ/mol,Fe_2O_3催化剂的加入使得花生壳热解过程的活化能降低了12.45%。
Non-isothermal method was used to study the catalytic pyrolysis of peanut shell over Fe2O3 catalyst.The double extrapolation method was adopted to analyze the kinetics of pyrolysis process.The corresponding kinetic parameters were obtained.It is found that the increase of heating rate improved the pyrolysis rate of peanut shell.The Fe2O3 catalyst enhanced the pyrolysis behavior of peanut shell with a 51.19% increase in final weight loss.Kinetic analysis demonstrated that the reaction mechanism of pyrolysis process has not changed by adding Fe2O3 catalyst.The kinetic mechanism function remained the principle of Manple single law with the integral formula of-ln（1-α）.The activation energies were 153.30kJ/mol and 134.22kJ/mol,respectively.It is indicated that the addition of Fe2O3 reduced the activation energy of pyrolysis of peanut shell by 12.45%.
出处
《精细石油化工》
CAS
CSCD
北大核心
2017年第1期77-82,共6页
Speciality Petrochemicals
基金
国家自然科学基金(21676148
21206074)
中国博士后科学基金(2014M561649)
关键词
花生壳
催化热解
Fe2O3双外推法
机理函数
peanut shell
catalytic pyrolysis
ferric oxide
double extrapolation method
mechanism function
