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Studies on Chemical Structure of Coal and on the Initial Reaction of Coalification

煤的化学结构及煤化初始反应的研究

基本信息

批准号：
63430016
负责人：
OUCHI Koji
金额：
$ 9.09万
依托单位：
Hokkaido University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (A)
财政年份：
1988
资助国家：
日本
起止时间：
1988 至 1989
项目状态：
已结题

项目摘要

It was proved that fatty acid esters and hydroxylated alkyl aromatics are the important basic constituents of coal structure. They produced n-paraffines and alkyl aromatics. during mild hydrogenation. The n-hexane extraction residue of mild hydrogenation product was again hydrogenated and extracted by n-hexane. Its residue was repeated by hydrogenation and extraction. Those three n-hexane extracts were then fractionated to acid, base, saturate, aromatic, distillable polar neutral and undistillable polar neutral. Eich corresponding fractions were analyzed and compared. All the corresponding fractions have the similar components except the increase of heavier components in the latter hydrogenation product and the increase of shorter paraffins. The conclusion was drawn that coal composes of fatty acid and hydroxylated aromatics and its structure in homogeneous. The hypothesis that alkyl phenol was produced from the reaction between lignin and lipid was proved by the model reaction between phenol and C_<18> fatty acid. The reaction produced alkyl phenol. alkyl tetralin alkyl naphthaleng, alkyl phenanthrene etc. Lignin also produced alkyl phenols by the reaction with C_<14> alcohol.

事实证明，脂肪酸酯和羟基烷基芳烃是煤结构的重要基本成分。他们生产正链烷烃和烷基芳烃。在温和氢化过程中。温和氢化产物的正己烷萃取残渣再次用正己烷氢化和萃取。将其残余物重复氢化和萃取。然后将这三种正己烷提取物分馏为酸、碱、饱和、芳香族、可蒸馏极性中性和不可蒸馏极性中性。分析并比较每个相应的级分。除后期加氢产物中重组分增加和短链烷烃增加外，所有相应馏分的组分均相似。结论是煤由脂肪酸和羟基芳烃组成，结构均匀。苯酚与C_18脂肪酸的反应模型证明了木质素与脂质反应生成烷基苯酚的假说。反应生成烷基苯酚。木质素还可以通过与C 14 醇反应生成烷基酚。