Effect of the presence of HCl on simultaneous CO2 capture and contaminants removal from simulated biomass gasification producer gas by CaO-Fe2O3 sorbent in calcium looping cycles

dc.contributor.authorDashtestani, Forogh
dc.contributor.authorNusheh, Mohammad
dc.contributor.authorSiriwongrungson, Vilailuck
dc.contributor.authorHongrapipat, Janjira
dc.contributor.authorMateric, Vlatko
dc.contributor.authorYip, Alex C.K.
dc.contributor.authorPang, Shusheng
dc.date.accessioned2026-08-06T10:34:02Z
dc.date.available2026-08-06T10:34:02Z
dc.date.issued2021-12-01
dc.description.abstractThis study investigated the effect of HCl in biomass gasification producer gas on the CO<inf>2</inf> capture efficiency and contaminants removal efficiency by CaO-Fe<inf>2</inf>O<inf>3</inf> based sorbent material in the calcium looping process. Experiments were conducted in a fixed bed reactor to capture CO<inf>2</inf> from the producer gas with the combined contaminants of HCl at 200 ppmv, H<inf>2</inf>S at 230 ppmv, and NH<inf>3</inf> at 2300 ppmv. The results show that with presence of HCl in the feeding gas, sorbent reactivity for CO<inf>2</inf> capture and contaminants removal was enhanced. The maximum CO<inf>2</inf> capture was achieved at carbonation temperatures of 680<sup>◦</sup>C, with efficiencies of 93%, 92%, and 87%, respectively, for three carbonation-calcination cycles. At this carbonation temperature, the average contaminant removal efficiencies were 92.7% for HCl, 99% for NH<inf>3</inf>, and 94.7% for H<inf>2</inf>S. The outlet contaminant concentrations during the calcination process were also examined which is useful for CO<inf>2</inf> reuse. The pore structure change of the used sorbent material suggests that the HCl in the feeding gas contributes to high CO<inf>2</inf> capture efficiency and contaminants removal simultaneously.
dc.identifier.citationEnergies, 14(23), 2021
dc.identifier.doi10.3390/en14238167
dc.identifier.issn19961073
dc.identifier.other2-s2.0-85120777938
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/12415
dc.sourceEnergies
dc.subjectCalcium looping
dc.subjectCaO-Fe2O3 sorbent
dc.subjectCO2 capture
dc.subjectContaminant removal
dc.titleEffect of the presence of HCl on simultaneous CO2 capture and contaminants removal from simulated biomass gasification producer gas by CaO-Fe2O3 sorbent in calcium looping cycles
dc.typeArticle

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