Injection of Oil

Heavy fuel oil or waste oil can also be injected into the blast furnace. As oil also contains hydrogen, benefits associated with the natural gas injection will also be applicable to oil injection.  With the oxy-oil technology the amount of injected oil can be increased to 0.13 t-oil/t-HM (Worrell, et al., 2010. p. 84). 

Cost of retrofit, cost of oxygen supply and continuous availability of cost competitive oil supply or waste oil supply need to be taken into consideration, and can severely limit the applicability of this measure.

Development Status Products
Commercial
iron

Injection of OilCosts & Benefits

Parent Process: Blast Furnace System
Energy Savings Potential

Every ton of oil used can reduce the coke demand by 1.2 tons (Worrell, et al., 2010. p. 84).

CO2 Emission Reduction Potential

CO2 reductions will vary depending on the composition of oil, and in particular Carbon and Hydrogen contents.  

Costs

Injection of Oil Publications

Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry

The U.S. Environmental Protection Agency’s (EPA) energy guide, Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry, discusses energy efficiency practices and technologies that can be implemented in iron and steel manufacturing plants. This guide provides current real world examples of iron and steel plants saving energy and reducing cost and carbon dioxide emissions.

Page Number: 

84

Injection of Oil Resources

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 °C in order to achieve conditions of fluidity and is injected by spraying into the combustion chamber. During combustion the temperatures and the CO2, O2, CO N2 and H2 contents of the gases in the combustion chamber are constantly recorded.