Author(s):
1. Aleksandra Ristić, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
2. Nebojša Vasiljević, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
3. Dario Balaban, Univerzitet u Novom Sadu, Tehnološki fakultet, Novi Sad, Serbia
4. Goran Tadić, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina

Abstract:
Abstract: In this paper, a mathematical model was developed and a simulation was performed of the distillation of a multicomponent hydrocarbon mixture, which is one of the intermediate fractions in the process of obtaining liquefied petroleum gas (LPG). The model, implemented in the MATLAB program, is based on the methodology of calculations for pseudobinary mixtures and the use of fast analytical procedures. The obtained results were validated by comparison with the Shortcut Column (SC) model of the DWSIM process simulator for fast column calculation, and then with the rigorous Distillation Column (DC) model. The application of the SC model showed extremely good agreement of the values of key process variables. The initial parameters derived from the SC optimization, when applied to the DC model, did not meet the strict product purity specifications, emphasizing the necessity of an iterative approach to design, i.e. a significant increase in the reflux ratio and, consequently, higher energy consumption for the reboiler and condenser. The research highlights the complementary roles of different simulation levels in process design, from preliminary screening to detailed engineering, emphasizing the critical trade-off between product purity and energy efficiency in distillation.

Key words:
Keywords: modeling, multicomponent distillation, optimization, DWSIM,modelling,multicomponent distillation,optimization,DWSIM

Thematic field:
SYMPOSIUM A - Science of matter, condensed matter and physics of solid states

Date of abstract submission:
28.06.2025.

Conference:
Contemporary Materials 2025 - Savremeni Materijali

Applied paper from author