| abstract |
A method for burning crude oil refining residues in a boiler, including a furnace (2) and injectors (5, 6, 30), characterised in that cooled gas containing oxygen (50) is injected into the furnace in the hottest portion (20) thereof to cause cracking of the tar or polycyclic aromatic hydrocarbons and the conversion thereof into basic materials that burn readily and thus pollute less. |