FUEL ADDITIVE FOR PREVENTING SLAGGING AND METHOD FOR BURNING FUEL

摘要

A fuel additive for preventing slagging which comprises a composition comprising water and/or an oil and, dispersed stably therein, one or more of an aluminum compound, a silica compound, a titanium compound and a zirconium compound in the form of ultra-fine particles having a particle diameter of 3 to 200 nm, and an alkali metal (R = Na or K) compound in an amount of 2 wt % or less in terms of R2O. The above fuel additive is used for preventing slagging caused by ash contents present in an oil during the burning of various fuels, in particular, a fuel having a high ash content such as coal or oil coke. The ash deposited on the surface of a furnace wall or a water tube can be released and fallen with ease from the surface by addition of the above fuel additive to a liquid fuel or a solid fuel prior to the burning thereof.