Exergy analysis of the biogas multistage compression process based on Aspen Plus simulation

In this study, by taking the compression separation process of a biogas project as a research subject, a multistage compression process was simulated using Aspen Plus software. The exergy analysis of the biogas project under multistage compression and adiabatic or isothermal conditions was performed...

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Main Authors: Zou Shuai, Li Kangchun, Dou Mingyuan, Yang Jing, Feng Qing, Huang Fuchuan, Chen Lin
Format: Article
Language:English
Published: Association of the Chemical Engineers of Serbia 2022-01-01
Series:Chemical Industry and Chemical Engineering Quarterly
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/1451-9372/2022/1451-93722200006Z.pdf
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author Zou Shuai
Li Kangchun
Dou Mingyuan
Yang Jing
Feng Qing
Huang Fuchuan
Chen Lin
author_facet Zou Shuai
Li Kangchun
Dou Mingyuan
Yang Jing
Feng Qing
Huang Fuchuan
Chen Lin
author_sort Zou Shuai
collection DOAJ
description In this study, by taking the compression separation process of a biogas project as a research subject, a multistage compression process was simulated using Aspen Plus software. The exergy analysis of the biogas project under multistage compression and adiabatic or isothermal conditions was performed employing the thermodynamic principle. The results showed that the biogas exergy increased with pressure during the compression process and correspondently decreased in the interstage cooling process. Further, the compression series increased with the increase in efficiency, but the increase was gradual. The results of the example study of the four-stage compression process are as follows: the process exergy increased by ~83.07 kW, the process exergy efficiency was ~75.56%, and the recovery exergy potential was ~12.6 kW. In this study, the allocation of compression ratios and the selection of compression stages within the multistage compression process were analyzed by Aspen Plus was used to analyze., This analysis can ultimately help others design efficient multistage compression systems that reduce energy losses.
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spelling doaj.art-5c82ef5d20634a2a916de70a4a4a9aad2022-12-22T04:21:13ZengAssociation of the Chemical Engineers of SerbiaChemical Industry and Chemical Engineering Quarterly1451-93722217-74342022-01-0128431932710.2298/CICEQ210822006Z1451-93722200006ZExergy analysis of the biogas multistage compression process based on Aspen Plus simulationZou Shuai0Li Kangchun1Dou Mingyuan2Yang Jing3Feng Qing4Huang Fuchuan5Chen Lin6School of Mechanical Engineering, Guangxi University, Nanning, Guangxi, China + Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi UniversitySchool of Chemistry & Chemical Engineering of Guangxi University, Nanning, Guangxi, China + Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi UniversitySchool of Mechanical Engineering, Guangxi University, Nanning, Guangxi, China + Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi UniversitySchool of Mechanical Engineering, Guangxi University, Nanning, Guangxi, China + Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi UniversitySchool of Mechanical Engineering, Guangxi University, Nanning, Guangxi, China + Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi UniversitySchool of Mechanical Engineering, Guangxi University, Nanning, Guangxi, China + Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University.School of Mechanical Engineering, Guangxi University, Nanning, Guangxi, ChinaIn this study, by taking the compression separation process of a biogas project as a research subject, a multistage compression process was simulated using Aspen Plus software. The exergy analysis of the biogas project under multistage compression and adiabatic or isothermal conditions was performed employing the thermodynamic principle. The results showed that the biogas exergy increased with pressure during the compression process and correspondently decreased in the interstage cooling process. Further, the compression series increased with the increase in efficiency, but the increase was gradual. The results of the example study of the four-stage compression process are as follows: the process exergy increased by ~83.07 kW, the process exergy efficiency was ~75.56%, and the recovery exergy potential was ~12.6 kW. In this study, the allocation of compression ratios and the selection of compression stages within the multistage compression process were analyzed by Aspen Plus was used to analyze., This analysis can ultimately help others design efficient multistage compression systems that reduce energy losses.http://www.doiserbia.nb.rs/img/doi/1451-9372/2022/1451-93722200006Z.pdfaspen plusbiogasexergy analysismultistage compression
spellingShingle Zou Shuai
Li Kangchun
Dou Mingyuan
Yang Jing
Feng Qing
Huang Fuchuan
Chen Lin
Exergy analysis of the biogas multistage compression process based on Aspen Plus simulation
Chemical Industry and Chemical Engineering Quarterly
aspen plus
biogas
exergy analysis
multistage compression
title Exergy analysis of the biogas multistage compression process based on Aspen Plus simulation
title_full Exergy analysis of the biogas multistage compression process based on Aspen Plus simulation
title_fullStr Exergy analysis of the biogas multistage compression process based on Aspen Plus simulation
title_full_unstemmed Exergy analysis of the biogas multistage compression process based on Aspen Plus simulation
title_short Exergy analysis of the biogas multistage compression process based on Aspen Plus simulation
title_sort exergy analysis of the biogas multistage compression process based on aspen plus simulation
topic aspen plus
biogas
exergy analysis
multistage compression
url http://www.doiserbia.nb.rs/img/doi/1451-9372/2022/1451-93722200006Z.pdf
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