| Titre : | Glass-based processing of mixed-oxide desulfurization sorbents (2010) |
| Auteurs : | Michael D. Dolan, Auteur ; Alex Y. Ilyushechkin, Auteur ; Keith G. McLennan, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 48 N° 23, Décembre 2009) |
| Article en page(s) : | pp. 10498–10503 |
| Note générale : | Industrial chemistry |
| Langues : | Anglais |
| Tags : | Glass-Based--Processing--Mixed-Oxide--Desulfurization--Sorbents |
| Résumé : | The favorable thermodynamics of the reaction between H2S and oxides of iron, nickel, and zinc make these materials suitable for the sorption of sulfur from coal-derived synthesis gas. As an alternative to traditional solid-state processing, the suitability for coal gas desulfurization of glass-ceramics based on transition metal oxides has been evaluated. Glass-ceramics based on NiAl2O4 and ZnFe2O4 have similar sorption properties and a high resistance to agglomeration, but the inexpensive raw materials and moderate processing temperature of the ZnFe2O4-based glass makes it more suitable for a commercial application. The overall performance is highly dependent on the particle size of the sorbent, but these materials can be formed with relatively high surface areas by using fiber-based processing. This material is a potential alternative to mixed oxide sorbents prepared by solid-state processing, as it offers comparable performance combined with the ability to process the glass by existing glass-processing techniques. |
| ISSN : | 0888-5885 |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie901170f |
