Restructuring and reducing
ArcelorMittal Brasil seeks to reduce its CO2 emissions by analyzing and restructuring industrial processes, which can generate carbon credits or not.
The Clean Development Mechanisms (CDM), however, are contemplated in the Environmental Management Policy. These programs are aligned with the Kyoto Protocol recommendations and are related to the reduction of greenhouse-gas emissions.
CO2 emission-reduction projects are:
- Cogeneration of electric energy through heat recovery
- Cogeneration of electric energy through recovery of steelwork off-gas
- Shipment of coils by ocean barges
- Methane-emission reduction in coal-producing units
- Injection of charcoal fines into the blast furnace
- Use of blast furnace gas in the billet-reheating furnace
- Use of renewable biomass in charcoal-fired blast furnaces
- Forest Producer Program
All the units control and monitor atmospheric emissions of fixed sources through periodic measurements carried out by specialist companies. In addition, dust levels (particulate matter), nitrogen oxide and sulphur oxide are constantly measured to ensure air quality.
The units of ArcelorMittal Brasil also monitor CFC emissions, one of the main threats to the ozone layer. ArcelorMittal Tubarão already reuses over 80% of its off-gases, does not emit CH4 N2O, HCFs, PCFs and SF6 gases and has eliminated since 1999 all the sources of CFC-11 emissions. Moreover, no CFC-11 is emitted at ArcelorMittal Long Steel and ArcelorMittal Vega. The Company has several projects and initiatives to reduce greenhouse-gas emissions. The group’s companies, for example, take part in the ULCOS (Ultra Low CO2 Steelmaking) Project – research done by the World Steel Association (WSA) to develop new techniques for steelmaking with low greenhouse gas emissions.