CAJ | 학술논문

采用Coats-Redfern积分法对生物质与煤单独热解和共热解过程进行动力学特性分析，考察了升温速率与反应级数在生物质与煤单独热解和共热解过程中对活化能的影响。结果表明，原料失重率在5%~80%的温度区间内，反应级数越高，反应温度越低，升温速率对热解积分曲线的影响越大，且随着升温速率的增加，热解积分曲线逐渐向高温区平移；在相同的温度段内选择不同的反应级数时，生物质热解积分曲线都可以呈现较好的线性关系，尤其是稻壳，选用的反应级数对拟合的结果影响不大；煤单独热解及煤与生物质共热解过程中，反应级数对拟合的结果影响比较明显，在较高反应级数时数据拟合程度都比较高，在较低反应级数时，拟合结果偏离直线形式，而且随着煤化程度的增加，拟合结果偏离直线形式越严重；生物质与煤共热解的拟合程度介于生物质与煤单独热解之间。通过分析动力学参数，发现生物质与煤在较低温度下协同反应效应较为明显，促进了共热解反应的进程。
채용Coats-Redfern적분법대생물질여매단독열해화공열해과정진행동역학특성분석，고찰료승온속솔여반응급수재생물질여매단독열해화공열해과정중대활화능적영향。결과표명，원료실중솔재5%~80%적온도구간내，반응급수월고，반응온도월저，승온속솔대열해적분곡선적영향월대，차수착승온속솔적증가，열해적분곡선축점향고온구평이；재상동적온도단내선택불동적반응급수시，생물질열해적분곡선도가이정현교호적선성관계，우기시도각，선용적반응급수대의합적결과영향불대；매단독열해급매여생물질공열해과정중，반응급수대의합적결과영향비교명현，재교고반응급수시수거의합정도도비교고，재교저반응급수시，의합결과편리직선형식，이차수착매화정도적증가，의합결과편리직선형식월엄중；생물질여매공열해적의합정도개우생물질여매단독열해지간。통과분석동역학삼수，발현생물질여매재교저온도하협동반응효응교위명현，촉진료공열해반응적진정。
In this paper, Coats-Redfern was used to analyze the dynamic characteristics of biomass with coal mono-pyrolysis and co-pyrolysis. It mainly researched the influence of heating rate and reaction order on pyrolysis integral curve. It found that in the temperature zone which weight lost rate of raw materials was 5 %-80 %, the higher reaction order and lower reaction temperature, the more influence of heating rate on the pyrolysis integral curve. With the heating rate increasing, the pyrolysis integral curve gradually moved to the high temperature zone. When the different reaction order in the same temperature range was chosen, biomass pyrolysis integral curves all showed well linear relation, especially the rice husk. But reaction orders had clearly influence on the results of the coal mono-pyrolysis and biomass co-pyrolysis with coal. At high reaction orders, it had the well fitting curve, but at the low ones, fitting curves drifted off the linear forms. With the coal rank increasing, the fitting curve obviously drifted off the linear forms. The fitting degree of biomass co-pyrolysis with coal was between the biomass mono-pyrolysis and coal mono-pyrolysis. In the lower temperature range, there was synergistic effect on co-pyrolysis of biomass and coal.