摘要
对生物质醋糟进行热重实验研究,分析醋糟在不同升温速率、不同粒径下的热解特性的规律。实验结果表明:当升温速率依次增加时,对醋糟热解反应的进行有着明显的促进作用;不同的醋糟颗粒粒径对其热解特性的影响比较小。通过Satava—Sestak积分法来求解醋糟的热解动力学参数,得到最符合醋糟热解的机理函数的积分形式为[-ln(1-α)]~3,由计算结果得出活化能的平均值为1.44×10~5J/mol,指前因子的平均值为8.47×107 min^(-1)。
In this paper,thermogravimetric experiment on vinegar residue was carried on.It was studied the pyrolysis characteristics law of vinegar bad under different heating rates and different sizes.The experimental results showed that the increasing heating rate could promote vinegar bad pyrolysis reactions.The experiment results also showed that different particle size had little influence on the pyrolysis characteristics of vinegar bad.Satava—Sestak method were used to solve the vinegar bad pyrolysis kinetic parameters.The integral form of the best mechanism function is[-ln（1-α）]^3.The calculation results showed that the value of Activation energy E in the mean is 1.44×10^5 J/mol,the value of pre-exponential factor A in the mean is 8.47×10^7 min^（-1）.
出处
《中国农机化学报》
2016年第5期248-252,共5页
Journal of Chinese Agricultural Mechanization
基金
镇江市科技支撑(农业)项目(NY20140048)
关键词
醋糟
热重实验
热解特性
动力学分析
动力学参数
vinegar residue
thermogravimetric experiment
pyrolysis characteristics
kinetic analysis
pyrolysis kinetic parameters
