Modelling and simulation of hydrotreating of palm oil components to obtain green diesel

José Ricardo Sodré*, Meliza Plazas-González, Carlos Alberto Guerrero-Fajardo

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

This work presents a model for hydrotreating of palm oil components to produce green diesel. The main reactions of triglycerides and fat acids in the presence of a NiMo/γAl2O3 catalyst are shown, especially cracking of triglycerides, hydrogenation, decarboxylation, decarbonylation and fat acid reduction. These reactions were modelled using Aspen Plus® 7.3 software, where an equilibrium reactor was used to predict the reaction behavior. The influence of reactor pressure, temperature and H2/oil molar ratio was analyzed. The results showed that the optimized conditions are obtained at average pressure from 30 bar to 60 bar, temperature between 300 °C and 400 °C, and H2/oil molar ratio of 20.1. In the separation system the operating conditions adopted were 40 bar, 200 °C in the first plate and 1.013 bar, 60 °C in the second plate, resulting in green diesel purity of 97%. High levels of n-C18 and n-C16 production were attained, compared with other methods.

Original languageEnglish
Pages (from-to)301-308
Number of pages8
JournalJournal of Cleaner Production
Volume184
Early online date26 Feb 2018
DOIs
Publication statusPublished - 20 May 2018

Fingerprint

Palm oil
diesel
fat
oil
Oils and fats
modeling
simulation
decarboxylation
acid
Acids
temperature
catalyst
Hydrogenation
software
Temperature
Catalysts
Modeling and simulation
reactor
Oil
Oils

Keywords

  • Decarbonylation
  • Decarboxylation
  • Green diesel
  • Hydrotreating
  • Reduction

Cite this

Sodré, José Ricardo ; Plazas-González, Meliza ; Guerrero-Fajardo, Carlos Alberto. / Modelling and simulation of hydrotreating of palm oil components to obtain green diesel. In: Journal of Cleaner Production. 2018 ; Vol. 184. pp. 301-308.
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abstract = "This work presents a model for hydrotreating of palm oil components to produce green diesel. The main reactions of triglycerides and fat acids in the presence of a NiMo/γAl2O3 catalyst are shown, especially cracking of triglycerides, hydrogenation, decarboxylation, decarbonylation and fat acid reduction. These reactions were modelled using Aspen Plus{\circledR} 7.3 software, where an equilibrium reactor was used to predict the reaction behavior. The influence of reactor pressure, temperature and H2/oil molar ratio was analyzed. The results showed that the optimized conditions are obtained at average pressure from 30 bar to 60 bar, temperature between 300 °C and 400 °C, and H2/oil molar ratio of 20.1. In the separation system the operating conditions adopted were 40 bar, 200 °C in the first plate and 1.013 bar, 60 °C in the second plate, resulting in green diesel purity of 97{\%}. High levels of n-C18 and n-C16 production were attained, compared with other methods.",
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Modelling and simulation of hydrotreating of palm oil components to obtain green diesel. / Sodré, José Ricardo; Plazas-González, Meliza; Guerrero-Fajardo, Carlos Alberto.

In: Journal of Cleaner Production, Vol. 184, 20.05.2018, p. 301-308.

Research output: Contribution to journalArticle

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