dc.contributor.author | Khan, Mohammed Nazeer Ul Hasan | |
dc.contributor.author | Chiesa, Paolo | |
dc.contributor.author | Cloete, Schalk Willem Petrus | |
dc.contributor.author | Amini, Shahriar | |
dc.date.accessioned | 2022-08-12T09:14:39Z | |
dc.date.available | 2022-08-12T09:14:39Z | |
dc.date.created | 2020-11-16T13:05:03Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Energy Conversion and Management: X. 2020, 7 1-14. | en_US |
dc.identifier.issn | 2590-1745 | |
dc.identifier.uri | https://hdl.handle.net/11250/3011556 | |
dc.description.abstract | Chemical looping combustion (CLC) is a promising method for power production with integrated CO2 capture with almost no direct energy penalty. When integrated into a natural gas combined cycle (NGCC) plant, however, CLC imposes a large indirect energy penalty because the maximum achievable reactor temperature is far below the firing temperature of state-of-the-art gas turbines. This study presents a techno-economic assessment of a CLC plant that circumvents this limitation via an added combustor after the CLC reactors. Without the added combustor, the energy penalty amounts to 11.4%-points, causing a high CO2 avoidance cost of $117.3/ton, which is more expensive than a conventional NGCC plant with post-combustion capture ($93.8/ton) with an energy penalty of 8.1%-points. This conventional CLC plant would also require a custom gas turbine. With an added combustor fired by natural gas, a standard gas turbine can be deployed, and CO2 avoidance costs are reduced to $60.3/ton, mainly due to a reduction in the energy penalty to only 1.4%-points. However, due to the added natural gas combustion after the CLC reactor, CO2 avoidance is only 52.4%. Achieving high CO2 avoidance requires firing with clean hydrogen instead, increasing the CO2 avoidance cost to $96.3/ton when a hydrogen cost of $15.5/GJ is assumed. Advanced heat integration could reduce the CO2 avoidance cost to $90.3/ton by lowering the energy penalty to only 0.6%-points. An attractive alternative is, therefore, to construct the plant for added firing with natural gas and retrofit the added combustor for hydrogen firing when CO2 prices reach very high levels. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.subject | Turbine inlet temperature | en_US |
dc.subject | Internally circulating reactor | en_US |
dc.subject | Carbon capture | en_US |
dc.subject | Combustor | en_US |
dc.subject | Chemical looping combustion | en_US |
dc.title | Integration of chemical looping combustion for cost-effective CO2 capture from state-of-the-art natural gas combined cycles | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | © 2020 The Author(s). Published by Elsevier Ltd. | en_US |
dc.source.pagenumber | 1-14 | en_US |
dc.source.volume | 7 | en_US |
dc.source.journal | Energy Conversion and Management: X | en_US |
dc.identifier.doi | 10.1016/j.ecmx.2020.100044 | |
dc.identifier.cristin | 1848330 | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |