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A molecular-level coupling model of fluid catalytic cracking and hydrotreating processes to improve gasoline quality
  • +11
  • Xinglong Qin,
  • Lei Ye,
  • Alqubati Murad,
  • Jichang Liu,
  • Qiang Ying,
  • Haitao Shen,
  • Wenxin Yu,
  • Jinquan Xie,
  • Lixin Hou,
  • Xin Pu,
  • Xin Han,
  • Jiangbing Li,
  • Rongjie Wang ,
  • Ning Liu
Xinglong Qin
East China University of Science and Technology School of Chemical Engineering

Corresponding Author:y30180864@mail.ecust.edu.cn

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Lei Ye
East China University of Science and Technology
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Alqubati Murad
East China University of Science and Technology
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Jichang Liu
East China University of Science and Technology School of Chemical Engineering
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Qiang Ying
East China University of Science and Technology
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Haitao Shen
East China University of Science and Technology School of Chemical Engineering
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Wenxin Yu
East China University of Science and Technology
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Jinquan Xie
East China University of Science and Technology
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Lixin Hou
East China University of Science and Technology
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Xin Pu
East China University of Science and Technology
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Xin Han
East China University of Science and Technology
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Jiangbing Li
Shihezi University School of Chemistry and Chemical Engineering
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Rongjie Wang
Shihezi University School of Chemistry and Chemical Engineering
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Ning Liu
Shihezi University School of Chemistry and Chemical Engineering
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Abstract

A molecular-level Fluid Catalytic Cracking (FCC)-Gasoline Hydrotreating (GH) process coupling model was established based on the Structure Oriented Lumping (SOL) method to guide the precise control of the hydrocarbon compositions in gasoline. 96 FCC reaction rules and 24 GH reaction rules were formulated, and a reaction network containing about 120,000 reactions was constructed. In order to establish the FCC-GH process coupling model, the effective transfer of composition information between the two processes was realized through the molecular composition matrix of gasoline. The molecular composition matrix of gasoline was obtained according to the classification rules of the molecular composition matrix of FCC products. The conversion laws of hydrocarbon molecules in gasoline were investigated by tracking their generation paths and reaction paths. The influences of reaction conditions on the distribution of hydrocarbons in the product gasoline could be calculated quantitatively by the FCC-GH process coupling model at molecular level.
Jan 2023Published in Chemical Engineering Journal volume 451 on pages 138778. 10.1016/j.cej.2022.138778