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通过TG-FTIR与动力学方法,研究碱性木质素与油页岩混合共热解的协同作用。实验结果表明:通过二者加权平均理论值与实验实际值对比,发现在热失重过程中仅在高温热解区间有协同作用。热解动力学研究表明:碱性木质素与油页岩可用组合一级反应动力学来描述,混合质量比为8∶2时反应活化能E在高温热解区间最高,为抑制作用;其他混合比的反应活化能E在高温热解区间最低,为促进作用。通过红外光谱的检测,对共热解过程有明显变化的官能团进行分析,共热解过程析出的CH_4、CO、CO_2、H_2O浓度在高温热解区间均有不同程度的增大,混合比为8∶2时,浓度均为最低。
The synergistic effect of co-pyrolysis of basic lignin and oil shale was studied by TG-FTIR and kinetic methods. The experimental results show that: by the weighted average theoretical value of the two compared with the actual value of the experiment, found in the process of thermal weight loss only in the pyrolysis interval synergy. Pyrolysis kinetics studies show that alkaline lignin and oil shale can be used to describe the first order reaction kinetics, when the mixing mass ratio is 8: 2, the reaction activation energy E is the highest in pyrolysis interval, which is the inhibitory effect; The reaction activation energy E is the lowest in the high-temperature pyrolysis interval, which is the promotion effect. Through the detection of infrared spectrum, the functional groups with obvious changes in the total pyrolysis process were analyzed. The concentrations of CH_4, CO, CO_2 and H_2O precipitated in the pyrolysis process all increased to some extent in the pyrolysis interval with the mixing ratio of 8 : 2, the concentration is the lowest.