摘要
采用减压蒸馏与超临界流体萃取分馏相结合的方法 ,将大庆、大港和沙特重油催化裂化分离出催化剂后的油浆切割成窄馏分。研究表明 ,油浆窄馏分中除含芳烃外 ,还有相当数量的饱和分 ,两者之和在 90 %以上 ,饱和分中环烷烃是主要成分。蒸馏馏分中主要是三环、四环芳烃 ;萃取馏分芳香分中主要是五环及更重的芳烃。各窄馏分的平均结构是带短侧链的环烷稠环芳烃。油浆的蒸馏馏分可直接作为橡胶软化剂 ;大庆油浆超临界萃取分馏馏分可制备中间相沥青炭纤维。
FCC decanted oils from processing Daqing, Saudi and Dagang heavy oils were separated into narrow fractions by vacuum distillation and Supercritical Fluid Extraction & Fraction (SFEF). The properties, compositions, and structures of the fractions were studied. The content of saturates and aromatics in the fractions was more than 90% and the cyclo paraffins were dominant in saturates. The aromatics of the fractions obtained from vacuum distillation were mainly triaromatics and tetraaromatics. The aromatics obtained from SFEF were mainly pentaaromatics and heavier. The average molecular structure of the decanted oil fractions was cycloparaffin polycyclic aromatics with short alkyl chains. The vacuum distillation fractions could be used as rubber softener, and the SFEF fractions from Daqing feedstock could be used to produce carbon fiber.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2001年第9期17-21,共5页
Petroleum Processing and Petrochemicals
关键词
催化裂化
油浆
澄清油
组成
分离
结构
化工利用
catalytic cracking
slurry
decanted oil
composition analysis
structure
chemical industry
utilization study
