B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 53/50 (2006.01) B01D 53/86 (2006.01) B01J 20/04 (2006.01) B01J 20/06 (2006.01) B01J 20/08 (2006.01) C01B 17/60 (2006.01)
Patent
CA 2255713
Hydrotalcite-like materials are stable in the crystalline oxide structure and essentially reversible in anion exchange. A novel process of sulfur oxide sorption is provided utilizing these hydrotalcite materials as contact solids. Large crystalline sheet materials having increased sorption of SO x are provided by incorporation of certain organic acid anionic species to modify the hydrotalcite/brucite structure. Typical industrial applications include sulfur removal from fluid catalyst cracking process, cold-side combustion gas sulfur abatement and cleaner coal gasification.
Les matières de type hydrotalcite sont stables au niveau de la structure d'oxyde cristallin et sensiblement réversibles au niveau de l'échange anionique. Un nouveau processus de sorption d'oxyde de soufre utilise ces matières hydrotalcite comme solides de contact. Des feuilles de matières cristallines de grande dimension possédant une capacité de sorption accrue de SOx sont obtenues par incorporation de certaines espèces anioniques d'acide organique modifiant la structure hydrotalcite/brucite. Les applications industrielles caractéristiques de l'invention comprennent la récupération de soufre dans le processus de craquage à catalyseur fluide, la réduction du soufre dans les gaz de combustion résultants d'une température insuffisante et une gazéification plus propre du charbon.
Albers Edwin W.
Burkhead Harry W. Jr.
Contract Materials Processing Inc.
Gowling Lafleur Henderson Llp
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