在升温速率为20℃/min,催化剂为纯CaO和煅烧后的白云石(CaO/MgO),氮气气氛下进行麦秸的热解和催化热解试验。由TG曲线可见麦秸催化热解可以提高其最大失重率,由DTG曲线可见催化热解有两个挥发分析出峰,通过比较说明添加催化剂有利于热解反应的进行,并且CaO/MgO催化效果更明显;对挥发分最大吸光率和第二大吸光率的红外谱图进行分析,再次证明了催化剂的效果;对挥发分大量析出阶段的主要气体CO2、CO、CH4、SO2的表观生成过程进行了研究分析;通过热解反应动力学的计算,采用Ozawa-Doyle法进行数据处理,表明添加催化剂后麦秸的热解活化能降低,有利于热解反应的进行。 Pyrolysis and catalytic pyrolysis experiments of wheat straw were carried out under nitrogen atmosphere at a heating rate of 20 ℃ / min, pure CaO catalyst and calcined dolomite (CaO / MgO). From the TG curve, it can be seen that the catalytic pyrolysis of wheat straw can increase the maximum weight loss rate. From the DTG curve, there are two volatile analysis peaks of the catalytic pyrolysis. The comparison shows that adding the catalyst is favorable for the pyrolysis reaction and the catalytic effect of CaO / MgO is more Obviously, the infrared spectra of the maximum absorbance of volatile matter and the second largest absorbance were analyzed to prove the effect of the catalyst again. The apparent formation process of CO2, CO, CH4 and SO2, which are the main gases with large amount of volatilization, was carried out The data was processed by Ozawa-Doyle method through the calculation of pyrolysis kinetics, which showed that the pyrolysis activation energy of wheat straw decreased after addition of catalyst, which was in favor of the pyrolysis reaction.