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Détail de l'auteur
Auteur James G. Goodwin
Documents disponibles écrits par cet auteur
Affiner la rechercheSimultaneous ammonia and toluene decomposition on tungsten-based catalysts for hot gas cleanup / Sourabh S. Pansare in Industrial & engineering chemistry research, Vol. 47 n°22 (Novembre 2008)
[article]
in Industrial & engineering chemistry research > Vol. 47 n°22 (Novembre 2008) . - p. 8602–8611
Titre : Simultaneous ammonia and toluene decomposition on tungsten-based catalysts for hot gas cleanup Type de document : texte imprimé Auteurs : Sourabh S. Pansare, Auteur ; James G. Goodwin, Auteur ; Santosh Gangwal, Auteur Année de publication : 2008 Article en page(s) : p. 8602–8611 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Ammonia Toluene Catalysts Gas cleanup Résumé : The current paper reports the results of a study of the simultaneous decomposition of NH3 and toluene on sulfur tolerant nonconventional tungsten-based catalysts [tungsten carbide (WC) and tungstated zirconia (WZ)] at temperatures <750 °C in the presence of H2, CO, CO2, and H2O, such as it would be present in hot gas cleanup following biomass gasification. Toluene was chosen as a model compound to represent tars. The effects of addition of each gasification gas component on the activities of WC and WZ for NH3 and toluene decomposition were investigated. The NH3 and toluene decomposition reactions were conducted at typical hot gas cleanup conditions of 700 °C and 1 atm. In the absence of gasification gases, low activities were observed for toluene decomposition on WC and WZ while complete conversion of 4000 ppm of NH3 was observed at space velocities of 5 800 000 and 385 000 h−1 for WC and WZ, respectively. The presence of H2, CO, CO2, and H2O had a somewhat negative impact on the high activities of WC and WZ for NH3 decomposition while it had a positive impact on the toluene decomposition activities of both the catalysts. However, both WC and WZ were active for the simultaneous removal of NH3 and toluene in the presence of H2, CO, CO2, and H2O. In the presence of gasification gases, both WC and WZ showed comparable performances for toluene decomposition on a “per-g-catalyst” basis with that of a commercial ultrastable Y zeolite (USY). However, on a “per-m2-catalyst” basis, WC showed by far the highest activity. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800525c [article] Simultaneous ammonia and toluene decomposition on tungsten-based catalysts for hot gas cleanup [texte imprimé] / Sourabh S. Pansare, Auteur ; James G. Goodwin, Auteur ; Santosh Gangwal, Auteur . - 2008 . - p. 8602–8611.
Industrial chemistry
Langues : Anglais (eng)
in Industrial & engineering chemistry research > Vol. 47 n°22 (Novembre 2008) . - p. 8602–8611
Mots-clés : Ammonia Toluene Catalysts Gas cleanup Résumé : The current paper reports the results of a study of the simultaneous decomposition of NH3 and toluene on sulfur tolerant nonconventional tungsten-based catalysts [tungsten carbide (WC) and tungstated zirconia (WZ)] at temperatures <750 °C in the presence of H2, CO, CO2, and H2O, such as it would be present in hot gas cleanup following biomass gasification. Toluene was chosen as a model compound to represent tars. The effects of addition of each gasification gas component on the activities of WC and WZ for NH3 and toluene decomposition were investigated. The NH3 and toluene decomposition reactions were conducted at typical hot gas cleanup conditions of 700 °C and 1 atm. In the absence of gasification gases, low activities were observed for toluene decomposition on WC and WZ while complete conversion of 4000 ppm of NH3 was observed at space velocities of 5 800 000 and 385 000 h−1 for WC and WZ, respectively. The presence of H2, CO, CO2, and H2O had a somewhat negative impact on the high activities of WC and WZ for NH3 decomposition while it had a positive impact on the toluene decomposition activities of both the catalysts. However, both WC and WZ were active for the simultaneous removal of NH3 and toluene in the presence of H2, CO, CO2, and H2O. In the presence of gasification gases, both WC and WZ showed comparable performances for toluene decomposition on a “per-g-catalyst” basis with that of a commercial ultrastable Y zeolite (USY). However, on a “per-m2-catalyst” basis, WC showed by far the highest activity. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800525c