Exergy Analysis of Single- and Two-Stage Crude Oil Distillation UnitsSource: Journal of Energy Resources Technology:;2003:;volume( 125 ):;issue: 003::page 199DOI: 10.1115/1.1595670Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In a refinery distillation plant, there are many components of interest to be analyzed thermodynamically, e.g., the crude oil heating furnace, the distillation column and a network of heat exchangers. Previous studies showed that the highest exergy losses occur when there is a heat transfer process especially in the crude oil heating furnace where high quality fuel is used to heat the crude oil, which is a low quality duty, beside the high temperature difference. Therefore, it is proposed in this work to perform distillation in two stages rather than one to reduce heat duty of the heating furnace and thus reducing irreversible losses. In this paper, energy and exergy analyses of a traditional one-stage crude oil distillation unit and a newly proposed two-stage crude oil distillation unit are conducted to study energy and exergy efficiencies of these units and determine the exergy losses. The results are compared for both one- and two-stage distillation units. In this regard, a commercial software package, SimSci/PRO II program is used to carry out both energy and exergy calculations. It is found that the overall exergy efficiencies for single- and two-stage distillation units are 14.0% and 31.5%, respectively. The proposed two-stage distillation unit shows 43.8% decrease in the overall exergy losses and 125% increase in the overall exergy efficiency.
keyword(s): Exergy , Heat exchangers , Crude oil , Exergy analysis , Furnaces , Heat AND Heating ,
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contributor author | Husain Al-Muslim | |
contributor author | Ibrahim Dincer | |
contributor author | Syed M. Zubair | |
date accessioned | 2017-05-09T00:09:59Z | |
date available | 2017-05-09T00:09:59Z | |
date copyright | September, 2003 | |
date issued | 2003 | |
identifier issn | 0195-0738 | |
identifier other | JERTD2-26512#199_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/128274 | |
description abstract | In a refinery distillation plant, there are many components of interest to be analyzed thermodynamically, e.g., the crude oil heating furnace, the distillation column and a network of heat exchangers. Previous studies showed that the highest exergy losses occur when there is a heat transfer process especially in the crude oil heating furnace where high quality fuel is used to heat the crude oil, which is a low quality duty, beside the high temperature difference. Therefore, it is proposed in this work to perform distillation in two stages rather than one to reduce heat duty of the heating furnace and thus reducing irreversible losses. In this paper, energy and exergy analyses of a traditional one-stage crude oil distillation unit and a newly proposed two-stage crude oil distillation unit are conducted to study energy and exergy efficiencies of these units and determine the exergy losses. The results are compared for both one- and two-stage distillation units. In this regard, a commercial software package, SimSci/PRO II program is used to carry out both energy and exergy calculations. It is found that the overall exergy efficiencies for single- and two-stage distillation units are 14.0% and 31.5%, respectively. The proposed two-stage distillation unit shows 43.8% decrease in the overall exergy losses and 125% increase in the overall exergy efficiency. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Exergy Analysis of Single- and Two-Stage Crude Oil Distillation Units | |
type | Journal Paper | |
journal volume | 125 | |
journal issue | 3 | |
journal title | Journal of Energy Resources Technology | |
identifier doi | 10.1115/1.1595670 | |
journal fristpage | 199 | |
journal lastpage | 207 | |
identifier eissn | 1528-8994 | |
keywords | Exergy | |
keywords | Heat exchangers | |
keywords | Crude oil | |
keywords | Exergy analysis | |
keywords | Furnaces | |
keywords | Heat AND Heating | |
tree | Journal of Energy Resources Technology:;2003:;volume( 125 ):;issue: 003 | |
contenttype | Fulltext |