C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 17/54 (2006.01) F23C 7/00 (2006.01) F23D 1/00 (2006.01) F23D 11/10 (2006.01)
Patent
CA 2190640
In the manufacture of sulfuric acid, elemental sulfur is reacted to by finely atomizing liquid sulfur into a vortex of combustion air and returning the atomized sulfur in the vortex during combustion, the radio of air and sulfur supplied to the vortex being substantially stoichiometric. This ensures that liquid sulfur is not deposited on the walls of a reaction chamber or the structure of a waste heat boiler receiving gases from the combustion chamber, and minimizes generation of nitrogen oxides.
Dans la production d'acide sulfurique, du soufre élémentaire est mis en réaction par atomisation fine de soufre liquide dans un tourbillon d'air de combustion et retour du soufre atomisé dans le tourbillon pendant la combustion, le rapport entre l'air et le soufre transmis au tourbillon étant sensiblement stoechiométrique. Ainsi, on s'assure que le soufre liquide n'est pas déposé sur les parois d'une chambre de réaction ou la structure d'une chaudière chauffée par la chaleur perdue recevant des gaz de la chambre de combustion, et on réduit au minimum la production d'oxyde azoté.
Anderson Lawrence E.
Ridout & Maybee Llp
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