【摘要】 用溶剂对大同煤进行预处理得四氢呋喃 甲醇不溶物(残煤),以萃取所得残煤作为反应物在Fe、Ni和Pd C的催化作用下进行温和加氢热处理,并用气相色谱 质谱联用仪(GC MS)分析了反应产物中石油醚可溶成分。结果表明,金属尤其是Ni和Pd C的添加促进了煤中有机氮的脱除。检测到的有机氮以苯胺及其烷基取代衍生物为主。更多还原

【Abstract】 It is important to understand the existing forms of organonitrogen compounds in coal and subsequently to choose proper approaches for removing and utilizing the components The tetrahydrofuran/methanolinsoluble fraction (residue) was obtained by solvent extraction from Datong bituminous coal, then noncatalytic and metal (Fe, Ni and Pd/C)catalyzed thermolysis of the residues were conducted in cyclohexane under pressurized hydrogen at 300?℃ Petroleum ethersoluble fractions from thermolysis products were identified with GC/MS The results showed that organonitrogen can be released from the residues in metal (especially Ni and Pd/C)catalyzed thermolysis The detected compounds are predominantly aniline and its alkylsubstituted derivatives The metalcatalyzed hydrogenation of polycyclic aromatic rings in coal destroyed both intermolecular interactions and covalent bonds so that the organonitrogen compounds could be released from macromolecule network更多还原