【摘要】 本文研究了我国河北峰峰焦煤裂解反应,根据总包一级反应动力学模型对实验数据进行处理,结果表明温度低于700℃时满足阿仑尼乌斯方程,活化能为E=46kJmol^-1。 如果把煤裂解按一系列并行的不可逆一级反应步骤进行模拟,连续分布函数f（E）对活化能E的曲线遵从高斯正态分布,从而得到最可几活化能为E=259kJmol^-1。 测定了气相中碳氢化合物和氢的含量。结果表明气相中主要成分是甲烷,其来源,一来自煤裂解本身,二来自气相产物的二次反应。更多还原

【Abstract】 The pyrolysis reaction of a chinese coking coal "Feng-Feng" has been studied in this work.The overall process is treated based on a single first order decomposition model. The resultsshow that the Arrhenious equation could only be used at the temperature lower than 700℃with an activation energy E= 46kJ/mol. The pyrolysis reaction was assumed to consist of aseries of independent irreversible parallel reactions, a statistical distribution function f（E） foractivation energy could be obtained. The results show that f（E） obeyed Gaussian normal statistcal distribution and the most probable activation energy was E = 259kJ/mol. The volatilespeciees of the coal were analyzed.The major constituent in all cases was found to be methane.It could be assumed that CH₄ came from two ways: pyrolysis reaction itself and the sccon-dary reactions or other volatile products.更多还原