The presence of coal tar on these materials makes them difficult to maintain, repair, replace and, above all, recycle:
When steel is melted at between 1,200 and 1,500°C, coal tar generates PAHs, toxic and carcinogenic substances that pose an environmental and health hazard.
Landfill disposal poses a lasting threat through
gradual degradation, with
soil and groundwater pollution
a time bomb waiting to explode.
Manual stripping is tedious, exposing workers to the risk of inhalation of hazardous substances and skin or eye damage.
Pyrogasification, an ecological alternative
Pyrogasification is carried out with an oxygen content of less than 8% and at a low temperature of between 380° and 420° to avoid flames and restrict the production of noxious smoke.
By cracking, the afterburner breaks down the residual noxious fumes at a temperature of between 850° and 1,200°.
Afterburner filtration neutralizes and dedusts all process residues using conventional devices.
The pyrogasification of coal tar pitch meets all emission standards for chlorine, sulfur and heavy metals.
