PROCESS FOR OPERATING A COAL-FIRED FURNACE WITH REDUCED SLAG FORMATION

• Main Author: PASTORE MARK
• Format: Patent
• Language: English
• Published: 25.02.2016
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; BLASTING; BURNERS; CHEMISTRY; COMBUSTION APPARATUS; COMBUSTION PROCESSES; FEEDING FUEL TO COMBUSTION APPARATUS; FIRELIGHTERS; FLUES; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; HEATING; LIGHTING; LIQUEFIED PETROLEUM GAS; LUBRICANTS; MECHANICAL ENGINEERING; METALLURGY; METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL; NATURAL GAS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; WEAPONS

There is provided a process for operating a coal-fired furnace to generate heat. The process has the steps of a) providing the coal to the furnace and b) combusting the coal in the presence of a first slag-reducing ingredient and a second slag-reducing ingredient in amounts effective to reduce slag formation in the furnace. The first slag-reducing ingredient and the second slag-reducing ingredient are different substances. The first slag-reducing ingredient is selected from the group consisting of magnesium carbonate, magnesium hydroxide, magnesium oxide, magnesium sulfate, and combinations thereof. The second slag-reducing ingredient is selected from the group consisting of copper acetate, copper nitrate, aluminum nitrate, aluminum oxide, aluminum hydroxide, and ammonium phosphate. There is also provided a method for reducing slag formation in a coal-fired furnace.