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Nickel sulfides decorated sic foam for the low temperature conversion of H<inf>2</inf>S into elemental sulfur

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dc.date.accessioned 2019-01-22T20:53:48Z
dc.date.available 2019-01-22T20:53:48Z
dc.date.issued 2018
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/149316
dc.description.abstract © 2018 by the authors. The selective oxidation of H2S to elemental sulfur was carried out on a NiS2/SiCfoam catalyst under reaction temperatures between 40 and 80 ◦C using highly H2S enriched effluents (from 0.5 to 1 vol.%). The amphiphilic properties of SiC foam provide an ideal support for the anchoring and growth of a NiS2 active phase. The NiS2/SiC composite was employed for the desulfurization of highly H2S-rich effluents under discontinuous mode with almost complete H2S conversion (nearly 100% for 0.5 and 1 vol.% of H2S) and sulfur selectivity (from 99.6 to 96.0% at 40 and 80 ◦C, respectively), together with an unprecedented sulfur-storage capacity. Solid sulfur was produced in large aggregates at the outer catalyst surface and relatively high H2S conversion was maintained until sulfur deposits reached 140 wt.% of the starting catalyst weight. Notably, the spent NiS2/SiCfoam catalyst fully recovered its pristine performance (H2S conversion, selectivity and sulfur-storage capacity) upon regeneration at 320 ◦C under He, and thus, it is destined to become a benchmark desulfurization system for operating in discontinuous mode.
dc.subject Catalysis
dc.subject H2S oxidation
dc.subject Low-temperature
dc.subject Nickel sulfide
dc.subject Silicon carbide
dc.title Nickel sulfides decorated sic foam for the low temperature conversion of H<inf>2</inf>S into elemental sulfur
dc.type Article
dc.relation.ispartofseries-issue 7
dc.relation.ispartofseries-volume 23
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS-2018-23-7-SID85049394068


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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