Simulation and Optimization of Gas Fractionation Process in Refinery
To address the issue of high steam consumption in the propane removal tower of the three tower gas fractionation process in refineries, it is proposed to use a high and low pressure dual tower propane removal process instead of the single tower propane removal process in the original process. The pr...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal of Petrochemical Universities
2025-08-01
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| Series: | Shiyou huagong gaodeng xuexiao xuebao |
| Subjects: | |
| Online Access: | https://journal.lnpu.edu.cn/syhg/CN/10.12422/j.issn.1006-396X.2025.04.003 |
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| author | Dan ZHAO Yanjuan WANG Xianliang PAN Jian ZHANG Haotian YE |
| author_facet | Dan ZHAO Yanjuan WANG Xianliang PAN Jian ZHANG Haotian YE |
| author_sort | Dan ZHAO |
| collection | DOAJ |
| description | To address the issue of high steam consumption in the propane removal tower of the three tower gas fractionation process in refineries, it is proposed to use a high and low pressure dual tower propane removal process instead of the single tower propane removal process in the original process. The process was simulated under steady?state conditions using Unisim Design process simulation software. The steam load of the high?pressure depropanizer and the hot water load of the deethanizer were analyzed, and the main operating parameters were optimized. The results showed that under the operating conditions of n(top C3 production)/n(total feed C3)=0.6, top pressure of 1.81 MPa, feed tray position of the 10th plate, and feed positions of the 114th and 126th plates at the top of the propane removal tower and low?pressure propane removal tower respectively, using the high and low?pressure double tower propane removal process can save 56.12% of steam load compared to the original process, save 49.83% of hot water load in the ethane removal tower compared to before optimization, reduce total energy consumption by 235.4 kW, and save about 339.71 yuan in thermal utility costs per hour. |
| format | Article |
| id | doaj-art-120b277750e44b2d96245477a7e3086c |
| institution | Kabale University |
| issn | 1006-396X |
| language | zho |
| publishDate | 2025-08-01 |
| publisher | Editorial Department of Journal of Petrochemical Universities |
| record_format | Article |
| series | Shiyou huagong gaodeng xuexiao xuebao |
| spelling | doaj-art-120b277750e44b2d96245477a7e3086c2025-08-25T02:29:55ZzhoEditorial Department of Journal of Petrochemical UniversitiesShiyou huagong gaodeng xuexiao xuebao1006-396X2025-08-01384182410.12422/j.issn.1006-396X.2025.04.003Simulation and Optimization of Gas Fractionation Process in RefineryDan ZHAO0 Yanjuan WANG1Xianliang PAN2Jian ZHANG3Haotian YE4School of Petrochemical Engineering，Liaoning Petrochemical University，Fushun Liaoning 113001，ChinaSchool of Petrochemical Engineering，Liaoning Petrochemical University，Fushun Liaoning 113001，ChinaPetroChina Liaohe Petrochemical Company，Panjin Liaoning 124000，ChinaSchool of Petrochemical Engineering，Liaoning Petrochemical University，Fushun Liaoning 113001，ChinaSchool of Chemical Engineering，Dalian University of Technology，Dalian Liaoning 116033，ChinaTo address the issue of high steam consumption in the propane removal tower of the three tower gas fractionation process in refineries, it is proposed to use a high and low pressure dual tower propane removal process instead of the single tower propane removal process in the original process. The process was simulated under steady?state conditions using Unisim Design process simulation software. The steam load of the high?pressure depropanizer and the hot water load of the deethanizer were analyzed, and the main operating parameters were optimized. The results showed that under the operating conditions of n(top C3 production)/n(total feed C3)=0.6, top pressure of 1.81 MPa, feed tray position of the 10th plate, and feed positions of the 114th and 126th plates at the top of the propane removal tower and low?pressure propane removal tower respectively, using the high and low?pressure double tower propane removal process can save 56.12% of steam load compared to the original process, save 49.83% of hot water load in the ethane removal tower compared to before optimization, reduce total energy consumption by 235.4 kW, and save about 339.71 yuan in thermal utility costs per hour.https://journal.lnpu.edu.cn/syhg/CN/10.12422/j.issn.1006-396X.2025.04.003gas fractionationseparation of high and low pressure twin towersenergy conservation and consumption reductionoptimize the designprocess simulation |
| spellingShingle | Dan ZHAO Yanjuan WANG Xianliang PAN Jian ZHANG Haotian YE Simulation and Optimization of Gas Fractionation Process in Refinery Shiyou huagong gaodeng xuexiao xuebao gas fractionation separation of high and low pressure twin towers energy conservation and consumption reduction optimize the design process simulation |
| title | Simulation and Optimization of Gas Fractionation Process in Refinery |
| title_full | Simulation and Optimization of Gas Fractionation Process in Refinery |
| title_fullStr | Simulation and Optimization of Gas Fractionation Process in Refinery |
| title_full_unstemmed | Simulation and Optimization of Gas Fractionation Process in Refinery |
| title_short | Simulation and Optimization of Gas Fractionation Process in Refinery |
| title_sort | simulation and optimization of gas fractionation process in refinery |
| topic | gas fractionation separation of high and low pressure twin towers energy conservation and consumption reduction optimize the design process simulation |
| url | https://journal.lnpu.edu.cn/syhg/CN/10.12422/j.issn.1006-396X.2025.04.003 |
| work_keys_str_mv | AT danzhao simulationandoptimizationofgasfractionationprocessinrefinery AT yanjuanwang simulationandoptimizationofgasfractionationprocessinrefinery AT xianliangpan simulationandoptimizationofgasfractionationprocessinrefinery AT jianzhang simulationandoptimizationofgasfractionationprocessinrefinery AT haotianye simulationandoptimizationofgasfractionationprocessinrefinery |