BLAST FURNACE AND COKES GAS BLENDING
Blast Furnace Gas (BFG) is produced in every steel plant, whereas Coke Oven Gas (COG) is available on site as well as it is being formed during the production of cokes.
As both gasses are by-products from the steel production process they are standardly present on every steel plant. BFG and COG are often mixed and used as fuel gases for boilers and power plants to improve efficiency of the steel production process by saving energy. In most cases the BFG/COG mixture is enriched with for instance natural gas to improve the combustion.
Mixing of these gases requires a control. Sampling COG is challenging. It is suggested to always consult Hobré on this application.