石油炼制与化工 ›› 2021, Vol. 52 ›› Issue (12): 60-63.

• 基础研究 • 上一篇    下一篇

不同沥青质在十氢萘体系中的加氢转化反应性能研究

孙昱东1,王泽州2,刘军3,张帅1,张肖肖1   

  1. 1. 中国石油大学(华东)化学工程学院
    2. 中国石化青岛炼油化工有限公司 3.中国石化青岛炼油化工有限公司 3.中国石化胜利油田分公司东辛采油厂

  • 收稿日期:2021-04-01 修回日期:2021-05-24 出版日期:2021-12-12 发布日期:2021-12-01
  • 通讯作者: 孙昱东 E-mail:ydsun@upc.edu.cn

HYDROTREATING CONVERSION PERFORMANCE OF DIFFERENT ASPHALTENES IN DECALIN SYSTEM

  • Received:2021-04-01 Revised:2021-05-24 Online:2021-12-12 Published:2021-12-01
  • Contact: SUN Yudong E-mail:ydsun@upc.edu.cn

摘要: 以十氢萘为溶剂,在高压釜中考察了不同溶剂抽提所得不同来源沥青质的加氢转化反应性能。结果表明,十氢萘可以改变沥青质体系的分散性能并起到供氢剂的作用,使沥青质具有较好的加氢转化性能,转化率均在60%以上,焦炭产率低于原油体系。不同溶剂分离所得沥青质的结构和组成不同,戊烷沥青质的转化率高于同一原料的庚烷沥青质。石蜡基沥青质的焦炭产率较高且转化率和产物分布略差,与传统认识有所差距,说明沥青质的加氢反应性能不仅与渣油原料的基属有关,还与沥青质本身的分子结构组成有关。

关键词: 沥青质, 原油基属, 分离溶剂, 十氢萘, 加氢转化

Abstract: The hydrotreating conversion performance of different asphaltenes separated by different solvent in decalin was investigated in an autoclave. The results show that the asphaltenes have better hydrotreating conversion performance in decalin with the conversion rate higher than 60%, and coke yield lower than that of corresponding residue. The conversion of pentane-asphaltenes is higher than that of heptane-asphaltenes from the same raw material because of the different structure and composition of asphaltenes separated by different solvents. The coke yield of asphaltenes from paraffin-based crude used in this study is higher, and the conversion and product distribution are slightly lower, which is different from the traditional understanding. It shows that the hydrogenation reactivity of asphaltenes is not only related to the base genus of residual oil raw materials, but also to the molecular structure of asphaltenes itself.

Key words: asphaltenes, type of crude oil, separation solvent, decalin, hydrotreating conversion