초록 ▼

A method of preparing a sulfur-containing composite fuel is provided to utilize some high-sulfur content solid and semi-solid fuels such as tar sand coke and refinery tank sludges by reducing their sulfur emission on combustion. The method comprises the steps of making an aqueous slurry including a

A method of preparing a sulfur-containing composite fuel is provided to utilize some high-sulfur content solid and semi-solid fuels such as tar sand coke and refinery tank sludges by reducing their sulfur emission on combustion. The method comprises the steps of making an aqueous slurry including a finely divided carbonaceous material, a comminuted sulfur capture agent and an oily agglomeration aid obtained from the refinery or tailing sludges and coagglomerating these components and an optional conditioning agent. The resulting agglomerated composite fuel has a reduced content of inorganic impurities and is suitable for fluidized-bed combustion.

대표청구항 ▼

A composite agglomerate fuel comprising a finelydivided sulfur-containing carbonaceous material substantially free of inorganic impurities, sulfur capture agent particles and an oily petroleum based agglomeration aid, the surface of both the carbonaceous material and of the sulfur captive agent part

A composite agglomerate fuel comprising a finelydivided sulfur-containing carbonaceous material substantially free of inorganic impurities, sulfur capture agent particles and an oily petroleum based agglomeration aid, the surface of both the carbonaceous material and of the sulfur captive agent particles being wetted by the agglomeration aid, the fuel obtained by the steps of: (a) providing an aqueous slurry including (i) a finely divided solid or semi-solid carbonaceous material (ii) a finely divided solid sulfur capture agent, (iii) an oily agglomeration aid comprising a hydrocarbon fraction which has sufficient polar groups to be capable of wetting the surface of both the sulfur capture agent and the carbonaceous material, and (iv) a conditioning, or activating agent capable of reducing the surface tension of the slurry, said agent being selected from the group consisting of sodium hydroxide, sodium oleate and a sodium salt of a petroleum sulfonate.