초록 ▼

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 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.

대표청구항 ▼

[ What is claimed is:] [1.] A method for improving the efficiency of combustion in a burner that employs as its fuel hydrocarbonaceous middle distillate fuel and for concurrently reducing at least the quantity of carbon monoxide emissions from such burner, which method comprises continuously and con

[ What is claimed is:] [1.] A method for improving the efficiency of combustion in a burner that employs as its fuel hydrocarbonaceous middle distillate fuel and for concurrently reducing at least the quantity of carbon monoxide emissions from such burner, which method comprises continuously and concurrently introducing into the combustion zone of the burner while combustion is occurring therein:a) hydrocarbonaceous middle distillate fuel with which has been blended in a minor combustion improving amount (i) at least one fuel-soluble manganese polycarbonyl compound; andb) an amount of air that is at least about 0.7% above the stoichiometric amount of air required for complete combustion of the fuel being introduced into said zone but which is less than 5% above said stoichiometric amount, wherein compound (i) is present in an amount sufficient to provide at least about 0.5 milligram of manganese per gallon (U.S.) of fuel.