Enhanced combustion of hydrocarbonaceous burner fuels

C - Chemistry – Metallurgy – 10 – L

Patent

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Details

C10L 1/30 (2006.01) C10L 1/10 (2006.01) C10L 10/02 (2006.01) C10L 1/12 (2006.01) C10L 1/18 (2006.01) C10L 1/22 (2006.01) C10L 1/24 (2006.01)

Patent

CA 2205143

A burner is operated by continuously feeding into its combustion zone while combustion is occurring therein, (a) a middle distillate burner fuel with which has been blended in any sequence or combination a minor combustion improving amount of fuel-soluble manganese polycarbonyl compound(s), and (b) a total amount of air above 100% of the stoichiometric amount required for complete combustion of all fuel being introduced into said zone but which is below 105% of such stoichiometric amount. Preferably at least alkali or alkaline earth metal-containing detergent and fuel-soluble dispersant have also been blended into the fuel being used. The efficiency of operation of blue and yellow burners is thereby improved, and emissions such as carbon monoxide and nitrogen oxide can be reduced as compared to operation of the same burner on the same unadditized base fuel.

La présente invention vise un brûleur dans lequel est injecté en cours de combustion, a) du mazout léger auquel a été mélangé, dans n'importe quel ordre ou n'importe quelle combinaison, une petite quantité de composé(s) polycarbonylés du manganèse, soluble(s) dans du combustible, favorisant la combustion, et b) une quantité d'air se situant entre 100 % et 105 % de la quantité stoechiométrique requise pour assurer la combustion complète de tout le combustible injecté dans la chambre de combustion. Le mélange devrait de préférence au moins également comprendre un détergent à base d'oxydes alcalino-terreux et un agent de dispersion soluble dans du combustible. La présente invention permet d'améliorer l'efficacité de fonctionnement des brûleurs à flamme bleue et jaune et de réduire les émissions d'oxyde de carbone et d'oxydes d'azote, qui sont beaucoup plus importantes dans le cas des mêmes brûleurs fonctionnant avec du combustible sans produits d'addition.

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