Energy saving opportunities in integrated NGL/LNG schemes exploiting: Thermal-coupling common-utilities and process knowledge
Novel integrated and optimization schemes for natural gas (NG) liquid recovery and liquefaction step are presented. The liquefaction of NG was carried out using the newly developed KSMR liquefaction cycle while the separation of NG liquids was performed using energy efficient thermally coupled disti...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
Elsevier BV
2014
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/3084 |
| _version_ | 1848744133938642944 |
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| author | Khan, M. Chaniago, Y. Woldetensay, Mesfin Lee, M. |
| author_facet | Khan, M. Chaniago, Y. Woldetensay, Mesfin Lee, M. |
| author_sort | Khan, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Novel integrated and optimization schemes for natural gas (NG) liquid recovery and liquefaction step are presented. The liquefaction of NG was carried out using the newly developed KSMR liquefaction cycle while the separation of NG liquids was performed using energy efficient thermally coupled distillation schemes. The main highlight of integration are, (i) feed splitting to provide reboiler duty in the methane scrubber, (ii) common refrigeration utilities required all over the plant; and (iii) flexibility of integrated plant for easy transition between ethane recovery or ethane rejection. These integration steps minimize the overall plant-specific power requirements and the duplication of processing equipment. After successful integration, the MR cycle was optimized for the compression energy requirement by varying the refrigerant composition and operating pressure levels with the aid of an in-house established knowledge-based optimization (KBO) methodology. The KBO approach is robust in application and gives consistent results. Compared to the base case, 9% improvement in plant compression energy requirement was obtained. |
| first_indexed | 2025-11-14T05:56:38Z |
| format | Journal Article |
| id | curtin-20.500.11937-3084 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T05:56:38Z |
| publishDate | 2014 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-30842017-09-13T14:31:38Z Energy saving opportunities in integrated NGL/LNG schemes exploiting: Thermal-coupling common-utilities and process knowledge Khan, M. Chaniago, Y. Woldetensay, Mesfin Lee, M. Knowledge based optimization NGL LNG Liquefaction Thermal coupling Natural gas Novel integrated and optimization schemes for natural gas (NG) liquid recovery and liquefaction step are presented. The liquefaction of NG was carried out using the newly developed KSMR liquefaction cycle while the separation of NG liquids was performed using energy efficient thermally coupled distillation schemes. The main highlight of integration are, (i) feed splitting to provide reboiler duty in the methane scrubber, (ii) common refrigeration utilities required all over the plant; and (iii) flexibility of integrated plant for easy transition between ethane recovery or ethane rejection. These integration steps minimize the overall plant-specific power requirements and the duplication of processing equipment. After successful integration, the MR cycle was optimized for the compression energy requirement by varying the refrigerant composition and operating pressure levels with the aid of an in-house established knowledge-based optimization (KBO) methodology. The KBO approach is robust in application and gives consistent results. Compared to the base case, 9% improvement in plant compression energy requirement was obtained. 2014 Journal Article http://hdl.handle.net/20.500.11937/3084 10.1016/j.cep.2014.06.001 Elsevier BV restricted |
| spellingShingle | Knowledge based optimization NGL LNG Liquefaction Thermal coupling Natural gas Khan, M. Chaniago, Y. Woldetensay, Mesfin Lee, M. Energy saving opportunities in integrated NGL/LNG schemes exploiting: Thermal-coupling common-utilities and process knowledge |
| title | Energy saving opportunities in integrated NGL/LNG schemes exploiting: Thermal-coupling common-utilities and process knowledge |
| title_full | Energy saving opportunities in integrated NGL/LNG schemes exploiting: Thermal-coupling common-utilities and process knowledge |
| title_fullStr | Energy saving opportunities in integrated NGL/LNG schemes exploiting: Thermal-coupling common-utilities and process knowledge |
| title_full_unstemmed | Energy saving opportunities in integrated NGL/LNG schemes exploiting: Thermal-coupling common-utilities and process knowledge |
| title_short | Energy saving opportunities in integrated NGL/LNG schemes exploiting: Thermal-coupling common-utilities and process knowledge |
| title_sort | energy saving opportunities in integrated ngl/lng schemes exploiting: thermal-coupling common-utilities and process knowledge |
| topic | Knowledge based optimization NGL LNG Liquefaction Thermal coupling Natural gas |
| url | http://hdl.handle.net/20.500.11937/3084 |