Patent ID: 7775166
Filing Date: 2010-08-17
Classification: C10L

Abstract:
1. A process for improving the operation of combustors comprising the steps of: burning a carbonaceous fuel in a combustion system; determining combustion conditions within the combustor system that can benefit from a targeted treatment additive, wherein the determinations are made by calculation including computational fluid dynamics and observation; locating introduction points in the combustor system where introduction of the targeted treatment additive could be accomplished; based on the previous steps, providing a treatment regimen for introducing the targeted treatment additive to locations within the combustor system resulting in one or more benefits selected from the group consisting of reducing the opacity of plume, improving combustion, reducing slag, reducing LOI carbon, reducing corrosion, and improving electrostatic precipitator performance; and wherein the targeted treatment additive comprises an alloy represented by the following alloy represented by the following generic formula (A wherein each capital letter and (. . .) is a metal; wherein A is a combustion modifier: B is a deposit modifier; C is a corrosion inhibitor; and D is a combustion co-modifier/electrostatic precipitator enhancer; wherein each subscript letter represents compositional stoichiometry; wherein n is greater than or equal to zero; and wherein the alloy comprises at least two different metals; and with the proviso that if the metal is cerium, then its compositional stoichiometry is less than about 0.7.