摘要
以胜利、孤岛、大庆 3种减压渣油为原料 ,在高压釜反应器中 4 0 5℃、恒温 1h条件下分别进行热转化反应 ,并对原料及热转化后的残渣油 (>5 0 0℃ )进行六组分分离 ,测定了原料、残渣油及其各组分的碱性氮与总氮含量。研究结果表明 ,3种减压渣油中随着组分的加重 ,碱性氮和总氮含量均增大 ,渣油各组分中约有 30 %的氮为碱性氮 ,碱性氮和总氮在渣油胶质、沥青质中含量相差不大。无论是热转化前还是热转化后 ,大多数氮都存在于胶质、沥青质中 。
Three kinds of vaccum residues from Shengli, Daqing and Gudao oilfields are thermally cracked in the batch autoclave respectively. Three vacuum residues and their thermal conversion products are separated into six fractions. The experimental results show that the basic nitrogen and the total nitrogen content increase with the raise of boiling points of the fractions. About 30% nitrogen in each fraction is basic nitrogen. The basic nitrogen and total nitrogen distribute almost equally in resin and asphaltene. The content of nitrogen in asphaltene before thermal conversion is higher than that after thermal conversion.
出处
《石油大学学报（自然科学版）》
EI
CSCD
北大核心
2002年第1期85-87,共3页
Journal of the University of Petroleum,China(Edition of Natural Science)
基金
中国石油股份有限公司资助项目 (990 810 0 2 )
关键词
减压渣油
热转化
氮分布
组分
测定
vacuum residue
fraction
thermal conversion
nitrogen distribution
measurement
