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Power from Steel Production Gas

High levels of power requirement and rising energy costs represent a major challenge for the steel industry. Gases created as a ‘free’ by-product during steel production processes serve as an attractive energy source option for efficient power generation. In addition to the economic benefit, using these gases as engine fuel reduced industrial CO2 emissions and saves natural energy sources.

Benefits of Power from Steel Production Gas

— Higher revenues from the utilisation of steel production gas as a fuel
— Reduced carbon emissions

— Stable robust onsite power supply
— Heat from engines can be used in other processes

Different Gases from Steel Production Processes

Steel production processes typically dispose large volumes of speciality gases. Three different process stages – from coal to steel – provide three different gas types: coke gas, blast furnace gas and converter gas.

Coke Gas

A by-product of industrial coke production from pit coal, coke gas is created by high-temperature dry distillation of coking coals in the absence of oxygen. The gas mainly consists of hydrogen (50-60%), methane (15-50%) and a small percentage of carbon monoxide, carbon and nitrogen. With a calorific value of 5kWh/Nm3, coke gas constitutes a high-value fuel for effective power generation with GE Jenbacher gas engines

Blast Furnace Gas

Blast furnace gas is a by-product of blast furnaces where iron ore is reduced with coke into metallic (pig) iron. The gas has a very low heating value of around 0.9kWh/Nm3, which on its own is typically not high enough for combustion in a gas engine. There is the possibility to blend this gas with other off gases; you should contact your local Clarke Energy office to discuss this in more depth.

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