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http://dx.doi.org/10.5762/KAIS.2018.19.2.21

Design of Naphtha Splitter Unit with Petlyuk Distillation Column Using Aspen HYSYS Simulation  

Lee, Ju-Yeong (Department of Environmental & Chemical Industry, Ulsan College)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.2, 2018 , pp. 21-27 More about this Journal
Abstract
FRN (Full range Naphtha) is distilled from crude oil in a Naphtha Splitter Unit and is separated into the Light Straight Naphtha, Heavy Naphtha, and kerosene according to the boiling point in sequence. This separation is conducted using a series of binary-like columns. In this separation method, the energy consumed in the reboiler is used to separate the heaviest components and most of this energy is discarded as vapor condensation in the overhead cooler. In this study, the first two columns of the separation process are replaced with the Petlyuk column. A structural design was exercised by a stage to stage computation with an ideal tray efficiency in the equilibrium condition. Compared to the performance of a conventional system of 3-column model, the design outcome indicates that the procedure is simple and efficient because the composition of the liquid component in the column tray was designed to be similar to the equilibrium distillation curve. An analysis of the performance of the new process indicated an energy saving of 12.3% under same total number of trays and with a saving of the initial investment cost.
Keywords
Petlyuk Column; Naphther Splitter Process; Aspen HYSYS; Energy saving; Process simulation;
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