Yuan, B., Zhang, Y., Du, W. et al. (2 more authors) (2019) Assessment of energy saving potential of an industrial ethylene cracking furnace using advanced exergy analysis. Applied Energy, 254. ISSN 0306-2619
Abstract
Steam cracking furnace is a high energy-consuming equipment in the ethylene plant. Reducing the exergy destruction and losses associated with the steam cracking furnace can increase the thermodynamic efficiency of the system and thereby reducing energy penalties. This paper aims to quantitatively evaluate thermodynamic performance of an industrial steam cracking furnace through conventional and advanced exergy analysis in order to assess its energy saving potential. A steady state simulation of an industrial steam cracking furnace with a total feed capacity of 12 t/h was carried out. The simulation was validated by comparing the model prediction results with the industrial data. The conventional exergy analysis shows that the overall exergy efficiency of the steam cracking furnace is found to be 43.43% and the combustion process in the radiation section exhibits the largest exergy destruction followed by the tube reactors in the radiation section. The advanced exergy analysis shows that the combustion process has the highest unavoidable exergy destruction. Moreover, the tube reactors in the radiation section has the highest avoidable exergy destruction, followed by the combustion process and the feed-steam mixture superheater in the convection section. Therefore, there is high energy saving potential in the tube reactors, combustion process and feed-steam mixture superheater. The advanced exergy analysis also indicates that efforts on improving the radiation and convection sections should be dedicated to themselves while the thermodynamic performance of the quench system should be improved by reducing the exergy destruction of other interacting components.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 Elsevier. This is an author produced version of a paper subsequently published in Applied Energy. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
Keywords: | Steady state modelling/simulation; Thermodynamic performance; Conventional exergy analysis; Advanced exergy analysis; Steam cracking furnace; Ethylene manufacturing |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Chemical and Biological Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 19 Sep 2019 08:17 |
Last Modified: | 22 Aug 2020 00:38 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.apenergy.2019.113583 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:151053 |
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Filename: 2019_06_18_Yuan_Modified_Manuscript_NoMark.pdf
Licence: CC-BY-NC-ND 4.0