Energy Integration of Crude Distillation Unit of a Refining and Petrochemical Company in Northern Nigeria
Most Nigerian refineries were constructed before pinch technology was developed, hence, the design were not optimal, leading to high energy loss. The objective of this work is to evaluate energy integration of crude distillation unit (CDU) of a refining and petrochemical company in Northern Nigeria...
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| Format: | Article |
| Language: | English |
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Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)
2022-11-01
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| Series: | Journal of Applied Sciences and Environmental Management |
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| Online Access: | https://www.ajol.info/index.php/jasem/article/view/237282 |
| _version_ | 1797228220051881984 |
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| author | U. Hamidu S. I. Ahmed U. D. Hamza |
| author_facet | U. Hamidu S. I. Ahmed U. D. Hamza |
| author_sort | U. Hamidu |
| collection | DOAJ |
| description |
Most Nigerian refineries were constructed before pinch technology was developed, hence, the design were not optimal, leading to high energy loss. The objective of this work is to evaluate energy integration of crude distillation unit (CDU) of a refining and petrochemical company in Northern Nigeria using pinch analysis by utilising HINT software. Minimum heating and cooling demand of 32251.1 kW and 29637.9 kW at the pinch point of 506.5 K was evaluated from the composite curve, grand composite curve and the cascade diagram. The region of overlap in the composite curve indicates a total of 108,945 kW as the possible energy that can be recovered in the process. Existing utility demand of the unit was 96,873.5 kW, after heat integration it reduces to 61,889 kW, this showed 36.11 % energy saving with a total operating cost of US$4,560,766.5 that could be saved (annually). Minimum approach temperature (DTmin) analysis results showed an optimum DTmin of 15 K which resulted in a total annual cost of US$6,715,700. Furthermore, the analysis showed the effect of DTmin on energy, area, minimum number of units and cost targets. The design objective of the retrofit heat exchanger network (HEN) was set toward maximum energy recovery. A total of twenty (20) heat exchangers made up the new network, which comprises of twelve (12) process to process heat exchangers, two (2) heaters and six (6) coolers.
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| first_indexed | 2024-04-24T14:53:14Z |
| format | Article |
| id | doaj.art-2b7ecedafa18448db06f2ba38c5a344f |
| institution | Directory Open Access Journal |
| issn | 2659-1502 2659-1499 |
| language | English |
| last_indexed | 2024-04-24T14:53:14Z |
| publishDate | 2022-11-01 |
| publisher | Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP) |
| record_format | Article |
| series | Journal of Applied Sciences and Environmental Management |
| spelling | doaj.art-2b7ecedafa18448db06f2ba38c5a344f2024-04-02T19:46:27ZengJoint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)Journal of Applied Sciences and Environmental Management2659-15022659-14992022-11-01261110.4314/jasem.v26i11.11Energy Integration of Crude Distillation Unit of a Refining and Petrochemical Company in Northern NigeriaU. HamiduS. I. AhmedU. D. Hamza Most Nigerian refineries were constructed before pinch technology was developed, hence, the design were not optimal, leading to high energy loss. The objective of this work is to evaluate energy integration of crude distillation unit (CDU) of a refining and petrochemical company in Northern Nigeria using pinch analysis by utilising HINT software. Minimum heating and cooling demand of 32251.1 kW and 29637.9 kW at the pinch point of 506.5 K was evaluated from the composite curve, grand composite curve and the cascade diagram. The region of overlap in the composite curve indicates a total of 108,945 kW as the possible energy that can be recovered in the process. Existing utility demand of the unit was 96,873.5 kW, after heat integration it reduces to 61,889 kW, this showed 36.11 % energy saving with a total operating cost of US$4,560,766.5 that could be saved (annually). Minimum approach temperature (DTmin) analysis results showed an optimum DTmin of 15 K which resulted in a total annual cost of US$6,715,700. Furthermore, the analysis showed the effect of DTmin on energy, area, minimum number of units and cost targets. The design objective of the retrofit heat exchanger network (HEN) was set toward maximum energy recovery. A total of twenty (20) heat exchangers made up the new network, which comprises of twelve (12) process to process heat exchangers, two (2) heaters and six (6) coolers. https://www.ajol.info/index.php/jasem/article/view/237282Cost;Crude Distillation;Energy integration;Heat Exchangers;Pinch analysis |
| spellingShingle | U. Hamidu S. I. Ahmed U. D. Hamza Energy Integration of Crude Distillation Unit of a Refining and Petrochemical Company in Northern Nigeria Journal of Applied Sciences and Environmental Management Cost; Crude Distillation; Energy integration; Heat Exchangers; Pinch analysis |
| title | Energy Integration of Crude Distillation Unit of a Refining and Petrochemical Company in Northern Nigeria |
| title_full | Energy Integration of Crude Distillation Unit of a Refining and Petrochemical Company in Northern Nigeria |
| title_fullStr | Energy Integration of Crude Distillation Unit of a Refining and Petrochemical Company in Northern Nigeria |
| title_full_unstemmed | Energy Integration of Crude Distillation Unit of a Refining and Petrochemical Company in Northern Nigeria |
| title_short | Energy Integration of Crude Distillation Unit of a Refining and Petrochemical Company in Northern Nigeria |
| title_sort | energy integration of crude distillation unit of a refining and petrochemical company in northern nigeria |
| topic | Cost; Crude Distillation; Energy integration; Heat Exchangers; Pinch analysis |
| url | https://www.ajol.info/index.php/jasem/article/view/237282 |
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