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Desıgn and Optimization of An Atmospheric Distillation Unit in An Oil Refinery

BROWSE_DETAIL_CREATION_DATE: 09-06-2017

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BROWSE_DETAIL_TYPE: Thesis

BROWSE_DETAIL_SUB_TYPE: Masters

BROWSE_DETAIL_PUBLISH_STATE: Published

BROWSE_DETAIL_FORMAT: PDF Document

BROWSE_DETAIL_LANG: English

BROWSE_DETAIL_SUBJECTS: Chemistry, Chemical engineering,

BROWSE_DETAIL_CREATORS: Sowani, Khaled Husein E. (Author),

BROWSE_DETAIL_CONTRIBUTERS: Kayı, Hakan (Advisor),

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crude oil, petroleum assay, distillation column, process design and simulation, optimization


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Today, production and distillation of crude oil are important processes in almost all around the world. Price of the petroleum products is rising due to the high demand which is much stronger than expected.In the last few years, simulation of the different processes has become an important tool, especially in the study of behavior of almost all the chemical processes. A proper simulation can bring the best advantages to industry, such as improving the in knowledge about the processes without the need to carry out the real operation of the processes. Simply, simulation can translate the mathematics of a computer modeling to description of the system behavior based on the data of input parameters. Simulation and modeling are very important in different engineering applications, because they describe the process operation that may not be feasible, may be inaccessible, too costly, or dangerous.ivIn this study a computer model of atmospheric distillation unit (which is also called crude distillation unit, CDU) in Libyan oil refinery was designed and simulations were performed to improve the middle distillate productions in CDU focusing on Naphtha product. Data of the crude oil, the operating conditions of the process unit, and other essential data were collected from actual refinery and entered into the simulation environment to generate the CDU model.Aspen program provides a capability to design the entire process accurately and gives us accurate information of how processes take place. This study includes the design and simulation of the crude distillation unit, and aims to improve its middle distillate productions, by concentrating on the improvement of the volumetric flow rate of the naphtha product, because it’s one of the most demanded valuable products.According to our findings, it’s possible to increase mainly the production of naphtha, kerosene (jet fuel), light gas oil (LGO). In addition reducing the residue volumetric flow rate at the same time is possible, and this is one of the objectives of this study. Ultimately, the simulation of the CDU is successfully completed, and the obtained results are discussed. The effects of the different operation conditions in the crude oil refining process on the yield and the composition of the crude oil products are investigated. To ensure the simulation works successful, the obtained results are compared with the actual distillation column production data.


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