【摘要】 在 40 0℃、30min、7MPa冷氢压条件下两种煤液化结果表明 ,兖州煤比DECS 6 (美国煤 )煤更容易液化或共液化 ,这可能与兖州煤硫含量比较高有关 ,但DECS 6煤的油收率要高于兖州煤 ,表明EDCS 6煤容易裂解生成小分子化合物。同种煤液化油的沸点分布特征基本一致。UV(紫外光谱 )特征表明 ,液化油中单环芳烃主要为烷基取代苯类化合物 ,二环芳烃组分主要是烷基取代萘类化合物 ,三环芳烃主要为渺位缩合的菲类化合物 ,四环芳烃主要为芘、屈艹 类化合物 ,五环芳烃以苯并芘类化合物为主 ,而极性化合物可归属为含O、S、N的极性芳香化合物更多还原

【Abstract】 Two high volatile subbituminous coals, DECS 6 of US and Yanzhou coal of China, were liquefied or co liquefied with HDPE or PVC at 400?℃, 30?min under 7?MPa hydrogen The results show that Yanzhou coal is easier to be liquefied or co liquefied than DECS 6 coal under the experimental conditions used and the hexane soluble oil from Yanzhou coal has more low boiling point fractions than that from DECS 6 coal The aromatics in hexane soluble oils mainly consist of alkylbeneze, alkylnaphthalene, phenanthrene ,pyrene , chrysene , and benzopyrene compounds, the polars mainly compose of compounds containing O, S and N etc更多还原