Combustion of waste oils simulating their injection in blast furnace tuyeres

A study has been made of the combustion of different waste oils produced in an iron and steel works. Combustion is achieved by injecting the waste oil at flows of 10-20 kg/h in a combustion chamber that simulates the conditions of the blast furnace tuyere zone. The waste oil is preheated to 65-90 degrees C in order to achieve conditions of fluidity and is injected by spraying into the combustion chamber. During combustion the temperatures and the CO(2), O(2), CO N(2) and H, contents of the gases in the combustion chamber are constantly recorded. The efficiency of the combustion of each waste oil is determined.