Carbon Flue Gas Cleaning - converting polluted flue gas into clean gas and valuable products.

The Carbon Flue Gas Cleaning CFGC process was developed by INTEGRAL Engineering und Umwelttechnik GmbH for sintering and coke oven plants of steel works. It uses activated carbon (AC) for the cleaning of flue gas and removes sulfur dioxide( SO2) by adsorption. Nitrogen dioxide (NOx) is reduced by the catalytic properties of the carbon with the additive Ammonia (NH3).

In this unique process, the pollutant sulfuric dioxide (SO2) is recovered and is used as the feedstock for the production of fertilizers or sulfuric acid. The nitrogen dioxide (NOx) is reduced to nitrogen and water, which are substances of clean air.

The cleaning process of polluted air provides clean gas and valuable products.

• Residue free technology (no landfill)
• Production of a usable product (sulfuric acid or fertilizer)
• Low operating temperatures (below 140°C)
• Desulfurization efficiency >99.5%
• Denitrification efficiency >85%

• Quick project execution by an experienced international project team
• Standardized adsorber units allow fast and easy erection
• Double staged modules to save space
• Counter current flow adsorber designed for exchangeable types of activated carbon
• Online maintenance of the plant with 8760h guaranteed availability
• Comprehensive and sophisticated automation system
• Fully automatic operation and safety surveillance, with fast response time
• Safety orientated design allows operation at all times
• Internal dust removal
• Variable and changeable bed heights
• Maintenance service offered by Integral
• Low activated carbon consumption