摘要
超临界溶剂萃取分馏方法可实现重质油的深度精细切割分离,从而成为研究重质油化学组成结构的有力工具.本文针对以此方法为基础的重油化学基础研究进展进行专题评述,总结了在重质油超临界萃取分离组分的缔合作用、在液体及超临界戊烷溶剂中微量金属与沥青质的吸附缔合作用、分子组成变化规律、在多孔材料中的扩散规律及其热转化和加氢转化行为等方面的近期研究进展,并介绍了这些研究进展对重油超临界溶剂萃取梯级分离工艺开发的指导作用.
The supercritical fluid extraction and fractionation method（SFEF） can realize deep cut and separation for heavy oils, which have provided a powerful tool for heavy oil chemistry research. This work summarizes recent research progress on aspects include the association and aggregation, the diffusion phenomena of SFEF cuts, the association and interaction between trace metal species and asphaltene in liquid solvent and supercritical conditions. The molecular level composition changes in supercritical extraction, thermal reaction and hydrotreating processes will also be discussed. The inspiration of the relevant chemical fundamentals to the development of heavy oil multi-stage separation by supercritical fluid processing technologies will be introduced as well.
作者
赵锁奇
张霖宙
陈振涛
许志明
孙学文
史权
徐春明
Suoqi Zhao;Linzhou Zhang;Zhentao Chen;Zhiming Xu;Xuewen Sun;Quan Shi;Chunming Xu(State Key Laboratory of Heavy Oil Processing, China University of Petroleum （Beijing）, Beijing 102249, China)
出处
《中国科学：化学》
CAS
CSCD
北大核心
2018年第4期369-386,共18页
SCIENTIA SINICA Chimica
基金
国家自然科学基金(编号:U1162204
U1463207)
国家重点基础研究发展计划(编号:2004CB217801
2010CB226901)资助项目
关键词
重质油
超临界流体萃取
梯级分离
heavy oil, supercritical fluid extraction, multi-stage separation
