CAJ | 학술논문

通过热重分析技术,考察了煤液化残渣及其萃取物的热解特性.结果表明,在相同条件下,煤液化沥青(即煤液化残渣萃取物)具有更大的失重率和失重速率.通过比较煤液化残渣、煤液化沥青及萃余物热失重曲线发现,残渣的热失重是由残渣中重质油和沥青质的热解,以及挥发造成的.随着升温速率的增大,煤液化沥青及残渣的初始分解温度、热解最终温度、最大失重速率温度均升高,峰值向高温区的方向移动.同时,为了有利于聚合反应的进行,应当适当降低反应的升温速率.
통과열중분석기술,고찰료매액화잔사급기췌취물적열해특성.결과표명,재상동조건하,매액화력청(즉매액화잔사췌취물)구유경대적실중솔화실중속솔.통과비교매액화잔사、매액화력청급췌여물열실중곡선발현,잔사적열실중시유잔사중중질유화력청질적열해,이급휘발조성적.수착승온속솔적증대,매액화력청급잔사적초시분해온도、열해최종온도、최대실중속솔온도균승고,봉치향고온구적방향이동.동시,위료유리우취합반응적진행,응당괄당강저반응적승온속솔.
The pyrolysis characteristics of coal liquefaction pitch and residue are studied using TG method.It is found that compared with residue,the weight loss and weight loss rate of coal liquefaction pitch(The coal liquefaction residue extract)is higher.Compared with the TG and DTG curve of residue,pitch and ex-traction residue,it is found that the majority of weight loss of residue is caused due to the volatilization and pyrolysis of heavy oil and pitch.It is also found that the initial pyrolysis temperature,final pyrolysis temperature and maximal weight loss rate temperature of pitch and residue are increased with the increasing of heating rates;the peak temperature of heating is shift to the high temperature regions.Lower heating rate is helpful for polymerization reaction.