Method for desulfurization and oxidation of carbonaceous fuels

A method for desulfurization and oxidation of carbonaceous fuels, said method comprising the steps of:

• a. introducing said carbonaceous fuel into a first stage partial oxidation unit containing molten slag at a temperature of about 2,200.degree. F.-2,600.degree. F.;
• b. simultaneously introducing a flux into said first unit in sufficient quantity to maintain the viscosity of said molten slag at no more than about 10 poise;
• c. simultaneously introducing oxygen-containing gas into said first unit, whereby partial oxidation of said carbonaceous fuel occurs to generate a combustible gas and at least about 50-99%, by weight, of the sulfur content of the carbonaceous fuel is chemically captured in said slag;
• d. transferring said combustible gas along a substantially horizontal path to a second stage oxidation unit for combustion;
• e. removing said sulfur containing slag to a watersealed quench system for disposal.