CAJ | 학술논문

利用热天平对两种植物生物质(辐射松和稻壳)及其三组分半纤维素、纤维素和木质素分别在不同的升温速率下进行热重分析，调查这些样品随热解温度的失重情况以及热解动力学。随着升温速率的增加，半纤维素的DTG曲线表现出不同于其他实验样品的规律，即DTG曲线的峰值向低温区移动。使用Kissinger微分法、FWO法和Popescu法联合对热解数据进行分析，分别计算反应活化能E和指前因子A，以及最可几机理函数，其中Jander方程G(α)=13α)(1-]2为纤维素、辐射松和稻壳的最可几机理函数，反Jander方程12)3G(α)=[(1+α-1]为半纤维素和木质素的最-[1可几机理函数，可以较好地解决植物生物质及其三组分的动力学参数的求算。
이용열천평대량충식물생물질(복사송화도각)급기삼조분반섬유소、섬유소화목질소분별재불동적승온속솔하진행열중분석，조사저사양품수열해온도적실중정황이급열해동역학。수착승온속솔적증가，반섬유소적DTG곡선표현출불동우기타실험양품적규률，즉DTG곡선적봉치향저온구이동。사용Kissinger미분법、FWO법화Popescu법연합대열해수거진행분석，분별계산반응활화능E화지전인자A，이급최가궤궤리함수，기중Jander방정G(α)=13α)(1-]2위섬유소、복사송화도각적최가궤궤리함수，반Jander방정12)3G(α)=[(1+α-1]위반섬유소화목질소적최-[1가궤궤리함수，가이교호지해결식물생물질급기삼조분적동역학삼수적구산。
Different pyrolysis characteristics of wood biomass(radiata pine and rice husk)and their three biomass compo-nens(hemicellulose,cellulose and lignin)at different heating rates were studied with TG. The DTG curves of the hemicellu-lose was different from other samples,and they moved towards the low temperature region with the increase of heating rate. Three methods,Kissinger,FWO and Popescu,were used to determine the kinetics. Based on the characteristics of different methods,the pre-exponential factor,activation energies and most probable mechanism functions of the five samples were detemined. The most probable mechanical functions of cellulose,pinups radiate and rice husk were Jander equation:1 32G(α)=[1-(1-α)],while others were anti Jander equation:1 23G(α)=[(1+α)-1]. The kinetic paramenters of the five sam-ples could be solved well by using the three methods in combination.