中国炼油与石油化工 ›› 2012, Vol. 14 ›› Issue (3): 44-49.

• Scientific Research • 上一篇    下一篇

Co-processing vacuum residue oil with waste plastics in a delayed coking process: Kinetics and Modeling

Mominou Nchare1,沈本贤2,Solomon G. Anagho3   

  1. 1. University of Ngaoundere
    2. 石油加工所
    3. Department of Chemistry; Faculty of Science, University of Dschang
  • 收稿日期:2012-03-29 修回日期:2012-05-23 出版日期:2012-09-30 发布日期:2012-10-22
  • 通讯作者: Mominou Nchare E-mail:nmominou@yahoo.com

Co-processing vacuum residue oil with waste plastics in a delayed coking process: Kinetics and Modeling

  1. 1. University of Ngaoundere
    2.
  • Received:2012-03-29 Revised:2012-05-23 Online:2012-09-30 Published:2012-10-22
  • Contact: Mominou NCHARE E-mail:nmominou@yahoo.com

摘要: Lumping procedure was used to predict the kinetics of products distribution during delayed coking process. The resulting distillate of delayed coking process was separated into fractions according to their boiling points, and gasoline and diesel being our fractions of concern. The activation energy was higher for gasoline production (around 60Kcal/mol) varying with the type of feed system, while it was 33Kcal/mol for diesel fraction. The regression coefficient R and F test indicate that the model fit well to the experimental data at low thermal conversion; therefore, the model can predict the cracking reaction of heavy feedstock occurring in the coking drum of delayed coking unit.

关键词: Delayed coking, Waste plastics, Vacuum residue, Kinetics

Abstract: Thermal upgrading of vacuum residue mixed with waste plastics was studied in a laboratory scale delayed coking unit. The model of feed thermal decomposition was set up and the first order reaction kinetics was used to predict products distribution during the coking process. The distillate yield was higher (70 %) for the vacuum residue/polystyrene (VR/PS) feed system and the vacuum residue/low density polyethylene (VR/LDPE) feed system. The resulted distillate yield was separated into fractions according to their boiling points, with gasoline and diesel being our fractions of concern. The activation energy was higher for gasoline production (around 60 kcal/mol) varying with the type of feed system, while it was 33 kcal/mol for diesel fraction. The regression coefficient R was 0.990.

Key words: Delayed coking, Waste plastics, Vacuum residue, Kinetics