Techno-economic optimisation of carbon dioxide purification and allocation for industrial sinks: a two-stage simulation and optimisation framework
<p dir="ltr">Carbon capture, utilisation, and storage (CCUS) is recognised as an important pathway for reducing greenhouse gas emissions in hydrocarbon-producing regions such as Qatar. However, the high energy and cost requirements of CO<sub>2</sub> capture and purificati...
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| مؤلفون آخرون: | , , |
| منشور في: |
2025
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| _version_ | 1864513523970736128 |
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| author | Razan Sawaly (19170910) |
| author2 | Ahmed AlNouss (9872265) Ahmad S. Abushaikha (14151651) Tareq Al-Ansari (9872268) |
| author2_role | author author author |
| author_facet | Razan Sawaly (19170910) Ahmed AlNouss (9872265) Ahmad S. Abushaikha (14151651) Tareq Al-Ansari (9872268) |
| author_role | author |
| dc.creator.none.fl_str_mv | Razan Sawaly (19170910) Ahmed AlNouss (9872265) Ahmad S. Abushaikha (14151651) Tareq Al-Ansari (9872268) |
| dc.date.none.fl_str_mv | 2025-10-14T18:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.encoman.2025.120559 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Techno-economic_optimisation_of_carbon_dioxide_purification_and_allocation_for_industrial_sinks_a_two-stage_simulation_and_optimisation_framework/31239679 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Chemical engineering Environmental engineering Carbon capture and utilisation (CCU) Carbon Dioxide purification Carbon Dioxide allocation Optimisation Sustainability |
| dc.title.none.fl_str_mv | Techno-economic optimisation of carbon dioxide purification and allocation for industrial sinks: a two-stage simulation and optimisation framework |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">Carbon capture, utilisation, and storage (CCUS) is recognised as an important pathway for reducing greenhouse gas emissions in hydrocarbon-producing regions such as Qatar. However, the high energy and cost requirements of CO<sub>2</sub> capture and purification remain a barrier to large-scale deployment. This study hypothesises that integrating process simulation with optimisation can reduce costs by aligning purification levels with the specific requirements of multiple industrial sinks. A two-stage amine absorption system was simulated in Aspen HYSYS to generate CO<sub>2</sub> streams of different purities, and a regression-based cost model from 45 scenarios was embedded into a nonlinear optimisation framework implemented in GAMS. The optimisation identified an economically optimal strategy with a splitting ratio of 6.61 % and a recovery rate of 74.2 %, achieving a minimum system cost of 4.26 million USD/year. CO<sub>2</sub> purification costs ranged from 73.89 USD/ton at 91.2 % purity to 155.60 USD/ton at 99.9 % purity, demonstrating a nonlinear cost escalation with increasing purity. The results show that directing moderate-purity CO2 to GTL and methanol, and reserving ultra-pure CO<sub>2</sub> for urea and EOR, enhances overall profitability. This scalable framework provides a practical tool for strategic CCUS planning in Qatar and similar industrial contexts, linking technical performance with economic decision-making.</p><h2 dir="ltr">Other Information</h2><p dir="ltr">Published in: Energy Conversion and Management<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.encoman.2025.120559" target="_blank">https://dx.doi.org/10.1016/j.encoman.2025.120559</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_53cedb30d58bc693f947c4996e101396 |
| identifier_str_mv | 10.1016/j.encoman.2025.120559 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/31239679 |
| publishDate | 2025 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Techno-economic optimisation of carbon dioxide purification and allocation for industrial sinks: a two-stage simulation and optimisation frameworkRazan Sawaly (19170910)Ahmed AlNouss (9872265)Ahmad S. Abushaikha (14151651)Tareq Al-Ansari (9872268)EngineeringChemical engineeringEnvironmental engineeringCarbon capture and utilisation (CCU)Carbon Dioxide purificationCarbon Dioxide allocationOptimisationSustainability<p dir="ltr">Carbon capture, utilisation, and storage (CCUS) is recognised as an important pathway for reducing greenhouse gas emissions in hydrocarbon-producing regions such as Qatar. However, the high energy and cost requirements of CO<sub>2</sub> capture and purification remain a barrier to large-scale deployment. This study hypothesises that integrating process simulation with optimisation can reduce costs by aligning purification levels with the specific requirements of multiple industrial sinks. A two-stage amine absorption system was simulated in Aspen HYSYS to generate CO<sub>2</sub> streams of different purities, and a regression-based cost model from 45 scenarios was embedded into a nonlinear optimisation framework implemented in GAMS. The optimisation identified an economically optimal strategy with a splitting ratio of 6.61 % and a recovery rate of 74.2 %, achieving a minimum system cost of 4.26 million USD/year. CO<sub>2</sub> purification costs ranged from 73.89 USD/ton at 91.2 % purity to 155.60 USD/ton at 99.9 % purity, demonstrating a nonlinear cost escalation with increasing purity. The results show that directing moderate-purity CO2 to GTL and methanol, and reserving ultra-pure CO<sub>2</sub> for urea and EOR, enhances overall profitability. This scalable framework provides a practical tool for strategic CCUS planning in Qatar and similar industrial contexts, linking technical performance with economic decision-making.</p><h2 dir="ltr">Other Information</h2><p dir="ltr">Published in: Energy Conversion and Management<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.encoman.2025.120559" target="_blank">https://dx.doi.org/10.1016/j.encoman.2025.120559</a></p>2025-10-14T18:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.encoman.2025.120559https://figshare.com/articles/journal_contribution/Techno-economic_optimisation_of_carbon_dioxide_purification_and_allocation_for_industrial_sinks_a_two-stage_simulation_and_optimisation_framework/31239679CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/312396792025-10-14T18:00:00Z |
| spellingShingle | Techno-economic optimisation of carbon dioxide purification and allocation for industrial sinks: a two-stage simulation and optimisation framework Razan Sawaly (19170910) Engineering Chemical engineering Environmental engineering Carbon capture and utilisation (CCU) Carbon Dioxide purification Carbon Dioxide allocation Optimisation Sustainability |
| status_str | publishedVersion |
| title | Techno-economic optimisation of carbon dioxide purification and allocation for industrial sinks: a two-stage simulation and optimisation framework |
| title_full | Techno-economic optimisation of carbon dioxide purification and allocation for industrial sinks: a two-stage simulation and optimisation framework |
| title_fullStr | Techno-economic optimisation of carbon dioxide purification and allocation for industrial sinks: a two-stage simulation and optimisation framework |
| title_full_unstemmed | Techno-economic optimisation of carbon dioxide purification and allocation for industrial sinks: a two-stage simulation and optimisation framework |
| title_short | Techno-economic optimisation of carbon dioxide purification and allocation for industrial sinks: a two-stage simulation and optimisation framework |
| title_sort | Techno-economic optimisation of carbon dioxide purification and allocation for industrial sinks: a two-stage simulation and optimisation framework |
| topic | Engineering Chemical engineering Environmental engineering Carbon capture and utilisation (CCU) Carbon Dioxide purification Carbon Dioxide allocation Optimisation Sustainability |