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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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小龙潭褐煤加氢液化及其重质产物结构表征
, PP. 560-566
Keywords: 小龙潭褐煤,加氢液化,结构表征,重质产物,缔合作用
Abstract:
？研究了小龙潭(xlt)褐煤直接加氢液化性能,并利用元素分析、红外光谱和荧光光谱法对液化重质产物沥青烯(as)和前沥青烯(pa)结构进行了分析表征。结果表明,xlt褐煤液化活性高,fes催化415℃时液化转化率最高达到89.6%,其液化过程主要是煤大分子结构热解并脱氧。所得as和pa的芳环结构单元类似于原煤,氧主要以羟基和芳香酮羰基形式存在。pa具有"列岛"(archipelago)式大分子结构特征,芳香结构含量明显大于as。thf溶液中,pa缔合作用显著强于as,尤其在稀溶液中pa存在一定的分子内缔合。较高温度下所得pa和as中芳香结构含量高,缔合作用强。
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