CO2 capture and utilization through isothermal carbonation-calcination looping integrated with MSW pyrolysis volatile reforming
This work proposed a concept of isothermal carbonation-calcination looping integrated with municipal solid waste (MSW) pyrolysis volatile reforming that achieves CO2 capture, utilization and waste-to-chemicals in a single process. The process was demonstrated in a bench-scale reactor using simulated...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Online Access: | https://hdl.handle.net/10356/178077 |
| _version_ | 1826116578566995968 |
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| author | Liu, Guicai Hu, Zhifeng Lisak, Grzegorz |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Liu, Guicai Hu, Zhifeng Lisak, Grzegorz |
| author_sort | Liu, Guicai |
| collection | NTU |
| description | This work proposed a concept of isothermal carbonation-calcination looping integrated with municipal solid waste (MSW) pyrolysis volatile reforming that achieves CO2 capture, utilization and waste-to-chemicals in a single process. The process was demonstrated in a bench-scale reactor using simulated flue gas and a sorbent-catalyst bi-functional composite Ni/Sr2CeO4. Over 70 % CO2 conversion of flue gas was achieved under 900 °C operation without the formation of CO in the off-gas. Exergy analysis explained the necessity of isothermal configuration due to its lower exergy loss compared with temperature-swing configuration. Furthermore, several bench-scale tests were conducted to improve the understanding of the proposed process. It was found that low oxygen content in feedstocks was crucial to obtain high CO2 conversion, thus MSW is more appropriate than biomass. The presence of O2 in flue gas led to a minor decline of CO2 conversion but effectively prevented CO formation in off-gas, owing to CO oxidation and the redox of Ni-NiO resulting in the alleviation of coke formation. Higher carbonation-reforming temperature facilitated the CO2 conversion, syngas production and the limitation of CO formation in flue gas at 800–900 °C. The decay during extended cycles is due to the growth and deactivation of Ni nanoparticle, instead of the sorbent component. |
| first_indexed | 2024-10-01T04:13:45Z |
| format | Journal Article |
| id | ntu-10356/178077 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:13:45Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1780772024-06-04T05:23:03Z CO2 capture and utilization through isothermal carbonation-calcination looping integrated with MSW pyrolysis volatile reforming Liu, Guicai Hu, Zhifeng Lisak, Grzegorz School of Civil and Environmental Engineering Nanyang Environment and Water Research Institute Residues and Resource Reclamation Centre Engineering Chemical looping Calcium looping This work proposed a concept of isothermal carbonation-calcination looping integrated with municipal solid waste (MSW) pyrolysis volatile reforming that achieves CO2 capture, utilization and waste-to-chemicals in a single process. The process was demonstrated in a bench-scale reactor using simulated flue gas and a sorbent-catalyst bi-functional composite Ni/Sr2CeO4. Over 70 % CO2 conversion of flue gas was achieved under 900 °C operation without the formation of CO in the off-gas. Exergy analysis explained the necessity of isothermal configuration due to its lower exergy loss compared with temperature-swing configuration. Furthermore, several bench-scale tests were conducted to improve the understanding of the proposed process. It was found that low oxygen content in feedstocks was crucial to obtain high CO2 conversion, thus MSW is more appropriate than biomass. The presence of O2 in flue gas led to a minor decline of CO2 conversion but effectively prevented CO formation in off-gas, owing to CO oxidation and the redox of Ni-NiO resulting in the alleviation of coke formation. Higher carbonation-reforming temperature facilitated the CO2 conversion, syngas production and the limitation of CO formation in flue gas at 800–900 °C. The decay during extended cycles is due to the growth and deactivation of Ni nanoparticle, instead of the sorbent component. National Research Foundation (NRF) Public Utilities Board (PUB) This research is supported by the National Research Foundation, Singapore, and PUB, Singapore’s National Water Agency under its RIE2025 Urban Solutions and Sustainability (USS) (Water) Centre of Excellence (CoE) Programme which provides funding to the Nanyang Environment & Water Research Institute (NEWRI) of the Nanyang Technological University, Singapore (NTU). Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not reflect the views of National Research Foundation, Singapore and PUB, Singapore’s National Water Agency. 2024-06-04T05:23:03Z 2024-06-04T05:23:03Z 2024 Journal Article Liu, G., Hu, Z. & Lisak, G. (2024). CO2 capture and utilization through isothermal carbonation-calcination looping integrated with MSW pyrolysis volatile reforming. Chemical Engineering Journal, 482, 149164-. https://dx.doi.org/10.1016/j.cej.2024.149164 1385-8947 https://hdl.handle.net/10356/178077 10.1016/j.cej.2024.149164 2-s2.0-85185176624 482 149164 en Chemical Engineering Journal © 2024 Elsevier B.V. All rights reserved. |
| spellingShingle | Engineering Chemical looping Calcium looping Liu, Guicai Hu, Zhifeng Lisak, Grzegorz CO2 capture and utilization through isothermal carbonation-calcination looping integrated with MSW pyrolysis volatile reforming |
| title | CO2 capture and utilization through isothermal carbonation-calcination looping integrated with MSW pyrolysis volatile reforming |
| title_full | CO2 capture and utilization through isothermal carbonation-calcination looping integrated with MSW pyrolysis volatile reforming |
| title_fullStr | CO2 capture and utilization through isothermal carbonation-calcination looping integrated with MSW pyrolysis volatile reforming |
| title_full_unstemmed | CO2 capture and utilization through isothermal carbonation-calcination looping integrated with MSW pyrolysis volatile reforming |
| title_short | CO2 capture and utilization through isothermal carbonation-calcination looping integrated with MSW pyrolysis volatile reforming |
| title_sort | co2 capture and utilization through isothermal carbonation calcination looping integrated with msw pyrolysis volatile reforming |
| topic | Engineering Chemical looping Calcium looping |
| url | https://hdl.handle.net/10356/178077 |
| work_keys_str_mv | AT liuguicai co2captureandutilizationthroughisothermalcarbonationcalcinationloopingintegratedwithmswpyrolysisvolatilereforming AT huzhifeng co2captureandutilizationthroughisothermalcarbonationcalcinationloopingintegratedwithmswpyrolysisvolatilereforming AT lisakgrzegorz co2captureandutilizationthroughisothermalcarbonationcalcinationloopingintegratedwithmswpyrolysisvolatilereforming |