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Dynamic modeling and simulation of hydrotreating of gas oil obtained from heavy crude oil

Paper ID Volume ID Publish Year Pages File Format Full-Text
40920 45871 2012 15 PDF Available
Title
Dynamic modeling and simulation of hydrotreating of gas oil obtained from heavy crude oil
Abstract

This paper describes a dynamic heterogeneous one-dimensional model of trickle-bed reactor used for catalytic hydrotreating of oil fractions. The model takes into consideration the main reactions occurring in the hydrotreating process: hydrodesulfurization, hydrodenitrogenation, hydrodearomatization (mono-, di-, and polyaroamatics), olefins hydrogenation, and mild hydrocracking (gas oil, naphtha, and gases). Kinetic parameters were determined from experimental data obtained in an isothermal bench-scale reactor during hydrotreating of atmospheric gas oil coming from a heavy crude oil over a commercial CoMo catalyst. The developed model was used to predict the dynamic behavior of an industrial hydrotreating reactor within a wide range of reaction conditions. Changes in concentration, partial pressure, and temperature profiles are simulated and discussed as a function of reactor axial position and time. The simulation results obtained with the proposed dynamic model showed good agreement with experimental data.

Graphical abstract.Figure optionsDownload full-size imageDownload high-quality image (90 K)Download as PowerPoint slideHighlights► A dynamic heterogeneous one-dimensional reactor model was developed. ► Main reactions occurring in the hydrotreating process are considered. ► Kinetics was extracted from bench-scale unit experimental data. ► Heavy oil-derived gas oil and commercial CoMo catalyst were used for hydrotreating. ► Simulation results showed good agreement with experimental data.

Keywords
Dynamic modeling; Catalytic hydrotreating; Trickle-bed reactor
First Page Preview
Dynamic modeling and simulation of hydrotreating of gas oil obtained from heavy crude oil
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 425–426, 28 May 2012, Pages 13–27
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis