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Energy Efficient Distillation Columns Design for Retrofit NGLs Fractionation Process

Mohd Faris, Mustafa and Noor Asma Fazli, Abdul Samad and Kamarul, Asri Ibrahim and Norzana, Ibrahim and Mohd Kamaruddin, Abd Hamid (2015) Energy Efficient Distillation Columns Design for Retrofit NGLs Fractionation Process. Advanced Materials Research, 1113. pp. 667-673. ISSN 1022-6680 (print), 1662-8985 (online)

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Abstract

Distillation is the primary separation process widely used in the industrial chemical process. Although it has many advantages, the main drawback is its large energy requirement, which may significantly influence the overall plant profitability. However, the large energy requirement of these processes can be systematically reduced by using driving force and energy integration methods. This paper presents a methodology for designing energy efficient distillation columns systems based on those two methods. Generally, the proposed methodology consists of four hierarchical steps. In the first step, the system of distillation columns for multicomponent separation is designed based on the conventional distillation column design (shortcut) method. Then, the conventional distillation columns systems design is improved in terms of energy saving by using driving force method in the second step. It is expected in the third step that the distillation columns systems design can be further improved in terms of energy saving by using energy integration method. Finally, the distillation columns systems design is evaluated in terms of economic performance. The simulation results by using Aspen HYSYS have shown that the driving force sequence by using shortcut method for NGLs has energy savings with 55% reduction compared to a direct method with shortcut method. It can be verified that the proposed methodology has the capability in designing energy efficient distillation columns in an easy, systematic and practical manners.

Item Type: Article
Uncontrolled Keywords: Energy efficient distillation columns, driving force, pinch technology
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Mrs. Neng Sury Sulaiman
Date Deposited: 12 Apr 2016 06:11
Last Modified: 21 May 2018 06:32
URI: http://umpir.ump.edu.my/id/eprint/8846
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