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dc.contributor.authorBlekkan, Edd Anders
dc.contributor.authorChytil, Svatopluk
dc.contributor.authorLødeng, Rune
dc.contributor.authorKure, Milly
dc.date.accessioned2017-05-30T12:26:04Z
dc.date.available2017-05-30T12:26:04Z
dc.date.created2017-04-20T09:38:35Z
dc.date.issued2017
dc.identifier.citationFuel. 2017, 196 124-133.nb_NO
dc.identifier.issn0016-2361
dc.identifier.urihttp://hdl.handle.net/11250/2443872
dc.description.abstractHigh temperature H2S sorbents comprising manganese oxide (15 wt.%) supported on TiO2, ZrO2, CeO2 and Al2O3 were prepared by wet impregnation using Mn(NO3)2·4H2O as Mn precursor. Upon activation in H2, the sorbent performance testing was conducted at 650 °C in a model gas mixture with a composition of 0.4 vol.% of H2S in 40 vol.% of H2, the balance being inert gas. Sorbent regeneration was performed at 650 °C with 5.2 vol.% of O2 in N2. The initial sorption performance is first reported for the parent (Mn-free) supports showing a considerable H2S sorption on ZrO2 and CeO2 and a minor sorption on Al2O3 and TiO2. The Mn sorbents were subject to 13 sorption/regeneration cycles. The highest initial sorption capacity is reported for cerium supported Mn oxide, which is also the sample that deactivates most. A prolonged exposure to H2 at 650 °C results in a reversible loss of the sorption capacity that was observed for all the samples except for Mn on zirconia suggesting its superior stability in H2. The supports, fresh and regenerated Mn sorbents were characterized by means of N2 sorption measurements, X-ray Diffraction and Raman spectroscopy. Temperature-Programmed Reduction was performed on the parent supports and fresh sorbents. The changes in material properties caused by the testing as well as a different degree of a metal oxide-support interaction influencing the sorption performance are discussed.nb_NO
dc.language.isoengnb_NO
dc.titlePerformance of Mn-based H2S sorbents in dry, reducing atmosphere – Manganese oxide support effectsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.source.pagenumber124-133nb_NO
dc.source.volume196nb_NO
dc.source.journalFuelnb_NO
dc.identifier.doi10.1016/j.fuel.2017.01.087
dc.identifier.cristin1465654
dc.description.localcodeThis is the authors' manuscript to the article (preprint).nb_NO
cristin.unitcode194,66,30,0
cristin.unitnameInstitutt for kjemisk prosessteknologi
cristin.ispublishedtrue
cristin.fulltextpreprint
cristin.qualitycode2


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