Show simple item record

dc.contributor.authorMoreno, Joseba
dc.contributor.authorHomsy, Sally Louis
dc.contributor.authorSchmid, Max
dc.contributor.authorScheffknecht, Günter
dc.date.accessioned2021-10-04T07:00:58Z
dc.date.available2021-10-04T07:00:58Z
dc.date.issued2021-09-30
dc.date.submitted2021-06-01
dc.identifier.citationMoreno, J., Homsy, S. L., Schmid, M., & Scheffknecht, G. (2021). Calcium Looping: Sorbent and Process Characterization in a 20 kWth Dual Fluidized Bed. Energy & Fuels. doi:10.1021/acs.energyfuels.1c01734
dc.identifier.issn0887-0624
dc.identifier.issn1520-5029
dc.identifier.doi10.1021/acs.energyfuels.1c01734
dc.identifier.urihttp://hdl.handle.net/10754/672097
dc.description.abstractThis paper presents an experimental investigation at a 20 kWth calcium looping (CaL) facility with a twofold focus. The first objective is on assessing the multicyclic behavior of limestone under continuous dual fluidized bed (DFB) operation. Different carbonation conditions were employed to derive a mathematical expression that is valid to compare the results from DFB and thermogravimetric analysis (TGA) with adequate accuracy. A preliminary screening of three morphologically distinct limestones was conducted by TGA including exposure to SO2 and H2O during carbonation. The second objective is to analyze the influence of multiple process variables (i.e., temperature, CO2 loading, and H2O concentration) on the performance of the 20 kWth CaL facility’s bubbling fluidized bed carbonator. Within the investigated range of operating conditions, the chosen carbonator design allowed for CO2 capture efficiencies as high as 0.99 mol/mol, yielding an apparent carbonation rate (kSφ) of 0.09 s–1. Paving the way to a more flexible usage of CaL systems, the proposed carbonator design could be integrated into the existing load-following power plants, in preference to a conventional circulating fluidized bed carbonator that is heavily penalized when forced to operate under low capacity factors.
dc.description.sponsorshipThe authors would like to thank Tim Seitz for his technical assistance during the completion of the fluidized bed experiments.
dc.description.sponsorshipThe authors received no specific funding for this work.
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acs.energyfuels.1c01734
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Energy & Fuels, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.energyfuels.1c01734.
dc.titleCalcium Looping: Sorbent and Process Characterization in a 20 kWth Dual Fluidized Bed
dc.typeArticle
dc.contributor.departmentClean Combustion Research Center
dc.identifier.journalEnergy & Fuels
dc.rights.embargodate2022-09-30
dc.eprint.versionPost-print
dc.contributor.institutionUniversity of Stuttgart, Institute of Combustion and Power Plant Technology (IFK), Pfaffenwaldring 23, Stuttgart 70569, Germany
kaust.personHomsy, Sally Louis
dc.date.accepted2021-09-17
dc.date.published-online2021-09-30
dc.date.published-print2021-10-21


This item appears in the following Collection(s)

Show simple item record