摘要
钌离子催化氧化法是对芳香碳有高度选择性的化学降解方法。本文在模型化合物研究的基础上，利用该方法对大庆减压渣油中芳香分和胶质的化学结构进行了分析。定量测定了与芳香核相连的正构烷基侧链和连接两个芳香核的正构烷基桥的分布。其碳数范围分别为Ｃ１～Ｃ３０和Ｃ２～Ｃ１１，随碳数增加其摩尔浓度下降。从两种组分的氧化产物中都检测出了从邻苯二甲酸到苯六甲酸的一系列苯多甲羧。定量分析表明，芳香分以渺位缩合芳香环系结构为主，胶质中的芳香结构比芳香分更丰富。
Ruthenium ions catalyzed oxidation (RICO) is a useful degradation technique which converts aromatic carbons high selectively to carbon dioxide and/or carboxylic acid while leaving aliphatic and naphthenic structures essentially unaffected Based on studies of the RICO reactions of model aromatic compounds, the chemical structure of aromatics and resins in Daqing vacuum residue were investigated by RICO The distributions of n-alkyl side chains and polymethylene bridges connected to aromatic moieties were determined quantitatively The carbon number ranges of these n-alkyl side chains and polymethylene bridges were C1C30 and C2C11 respectively, and their concentrations decrease with the increase of carbon number Various isomeric benzenepolycarboxylic acids (from di- to hexacarboxylic acids) were identified from the RICO products of either aromatics or resins The quantitative analyses indicated that the aromatic unit structure of aromatics is mainly cata-condensed while resins have more complex and conde
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
1999年第2期102-109,共8页
Journal of Fuel Chemistry and Technology
关键词
减压渣油
化学结构
钌离子
催化氧化
渣油
crude vacuum residue, chemical structure, ruthenium ions catalyzed oxidation nsed aromatic systems
