Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/155639
Full metadata record
DC FieldValueLanguage
dc.contributor.authorLiu, Guicaien_US
dc.contributor.authorWang, Haimingen_US
dc.contributor.authorVeksha, Andreien_US
dc.contributor.authorGiannis, Apostolosen_US
dc.contributor.authorLim, Teik-Thyeen_US
dc.contributor.authorLisak, Grzegorzen_US
dc.date.accessioned2022-03-15T01:29:37Z-
dc.date.available2022-03-15T01:29:37Z-
dc.date.issued2021-
dc.identifier.citationLiu, G., Wang, H., Veksha, A., Giannis, A., Lim, T. & Lisak, G. (2021). Chemical looping combustion-adsorption of HCl-containing syngas using alkaline-earth coated iron ore composites for simultaneous purification and combustion enhancement. Chemical Engineering Journal, 417, 129226-. https://dx.doi.org/10.1016/j.cej.2021.129226en_US
dc.identifier.issn1385-8947en_US
dc.identifier.urihttps://hdl.handle.net/10356/155639-
dc.description.abstractFor high temperature purification of HCl-containing syngas, chemical looping combustion-adsorption (CLCA) was developed using Ba-, Sr- and Ca-coated iron ore (IO) as bifunctional oxygen carrier-HCl sorbent (OCS) composites. The behavior of OCS at fuel reaction (FR), air reaction (AR) and sorbent regeneration (SR) stages was studied. It was found that compared with conventional chemical looping combustion (CLC), CLCA could maintain high dechlorination performance at FR stage, without any deterioration after multiple cycles. Among the OCS composites, Ba and Sr-coated IO showed extraordinary performance as OCS for CLCA process of HCl-containing syngas, whereas Ca-coated IO exhibited low HCl removal ability. During 5-cycle test of Ba and Sr-coated IO, the HCl concentration in flue gas from fuel reactor was 20–30 ppmv, corresponding to approx. 95% dechlorination efficiency. For the selection of SR conditions, high temperature (950 °C) was required to achieve stable and high regeneration performance, while H2O was the effective regenerating gas for Ba-coated IO, instead of CO2. Regarding syngas combustibility, the coating with alkaline-earth metal compounds improved the oxidizing ability of IO leading to higher combustion efficiency compared to pure IO. Ba- and Sr-coated IO showed greater performance in syngas combustion than Ca-coated IO due to the greater electron donating ability and base strength. The addition of SR stage was also found to promote the syngas combustion performance, due to the mitigation of sintering problem from molten metal chlorides. The results suggest that the CLCA process could be an efficient solution for processing HCl-containing syngas.en_US
dc.description.sponsorshipMinistry of the Environment and Water Resourcesen_US
dc.description.sponsorshipNational Environmental Agency (NEA)en_US
dc.language.isoenen_US
dc.relationWTE CRP 1701 105en_US
dc.relation.ispartofChemical Engineering Journalen_US
dc.rights© 2021 Elsevier B.V. All rights reserved. This paper was published in Chemical Engineering Journal and is made available with permission of Elsevier B.V.en_US
dc.subjectEngineering::Civil engineeringen_US
dc.titleChemical looping combustion-adsorption of HCl-containing syngas using alkaline-earth coated iron ore composites for simultaneous purification and combustion enhancementen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.contributor.researchNanyang Environment and Water Research Instituteen_US
dc.contributor.researchResidues and Resource Reclamation Centreen_US
dc.identifier.doi10.1016/j.cej.2021.129226-
dc.description.versionSubmitted/Accepted versionen_US
dc.identifier.scopus2-s2.0-85102074480-
dc.identifier.volume417en_US
dc.identifier.spage129226en_US
dc.subject.keywordsOxygen Carrieren_US
dc.subject.keywordsSorbent Regenerationen_US
dc.description.acknowledgementThis work is supported by the National Environment Agency, Ministry of the Environment and Water Resources, Singapore, under the Waste-to-Energy Competitive Research Programme (WTE CRP 1701 105).en_US
item.fulltextWith Fulltext-
item.grantfulltextopen-
Appears in Collections:CEE Journal Articles
NEWRI Journal Articles

SCOPUSTM   
Citations 20

22
Updated on Mar 25, 2024

Web of ScienceTM
Citations 20

16
Updated on Oct 24, 2023

Page view(s)

148
Updated on Mar 28, 2024

Download(s)

17
Updated on Mar 28, 2024

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.