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Integrated process configuration for high - temperature sulfur mitigation during biomass conversion via indirect gasification / Abhijit Dutta in Industrial & engineering chemistry research, Vol. 51 N° 24 (Juin 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 24 (Juin 2012) . - pp. 8326–8333 Titre : Integrated process configuration for high - temperature sulfur mitigation during biomass conversion via indirect gasification Type de document : texte imprimé Auteurs : Abhijit Dutta, Auteur ; Singfoong Cheah, Auteur ; Richard Bain, Auteur Année de publication : 2012 Article en page(s) : pp. 8326–8333 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Biomass  Gasification Résumé : Sulfur present in biomass often causes catalyst deactivation during downstream operations after gasification. Early removal of sulfur from the syngas stream post-gasification is possible via process rearrangements and can be beneficial for maintaining a low-sulfur environment for all downstream operations. High-temperature sulfur sorbents have superior performance and capacity under drier syngas conditions. The reconfigured process discussed in this paper is comprised of indirect biomass gasification using dry recycled gas from downstream operations, which produces a drier syngas stream and, consequently, more-efficient sulfur removal at high temperatures using regenerable sorbents. A combination of experimental results from NREL’s fluidizable Ni-based reforming catalyst, fluidizable Mn-based sulfur sorbent, and process modeling information show that using a coupled process of dry gasification with high-temperature sulfur removal can improve the performance of Ni-based reforming catalysts significantly. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202797s [article] Integrated process configuration for high - temperature sulfur mitigation during biomass conversion via indirect gasification [texte imprimé] / Abhijit Dutta, Auteur ; Singfoong Cheah, Auteur ; Richard Bain, Auteur . - 2012 . - pp. 8326–8333. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 24 (Juin 2012) . - pp. 8326–8333 Mots-clés : Biomass  Gasification Résumé : Sulfur present in biomass often causes catalyst deactivation during downstream operations after gasification. Early removal of sulfur from the syngas stream post-gasification is possible via process rearrangements and can be beneficial for maintaining a low-sulfur environment for all downstream operations. High-temperature sulfur sorbents have superior performance and capacity under drier syngas conditions. The reconfigured process discussed in this paper is comprised of indirect biomass gasification using dry recycled gas from downstream operations, which produces a drier syngas stream and, consequently, more-efficient sulfur removal at high temperatures using regenerable sorbents. A combination of experimental results from NREL’s fluidizable Ni-based reforming catalyst, fluidizable Mn-based sulfur sorbent, and process modeling information show that using a coupled process of dry gasification with high-temperature sulfur removal can improve the performance of Ni-based reforming catalysts significantly. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202797s