神华煤直接液化残渣中沥青烯组分的分子结构研究

对神华煤直接液化残渣的己烷不溶苯可溶物--沥青烯组分--进行了分子结构特性的研究.分析得到其平均分子量为1 387，平均分子式可写成为C₁₀₁H_90.7O_3.6N₂.从其分子内部结构来看：它的主要结构由多环稠合芳香烃和芳环上存在的烷基取代基组成，其中少量芳香烃已部分饱和，取代基的链长不一，平均为13个碳原子.此外，沥青烯还含有少量氧和氮原子处在环上形成杂环，并存在少量羟基和醚基.

Study on the molecular structure of asphaltene fraction from the Shenhua coal direct liquefaction residue

The structure characters of asphaltene fraction in the Shenhua coal direct liquefaction residue were studied.Its average molecular weight is 1 387,and average molecular formula is C_(101)H_(90.7)O_(3.6)N_2.So far as character of intra-molecule is concerned,asphaltene fraction is made up of polycyclic aromatic hydrocarbon and a series of n-alkane chains that are linked with aromatic structure.Some polycyclic aromatic hydrocarbons have been partially hydrogenated and average n-alkane chain has 13 carbon atoms.In addition,asphaltene has a few oxygen and nitrogen atoms that are in aromatic rings and form heterocyclic stucture,some hydroxy groups and ether groups.