SN MAIA Siderurgia Nacional steel plant

SN MAIA Siderurgia Nacional steel plant is a steel plant in Portugal with a reported capacity of 600,000 t of steel. It produces crude steel from iron ore (blast furnace) or scrap (electric arc furnace). It is operated by SN MAIA Siderurgia Nacional SA. By capacity it ranks #2 of 2 steel plants tracked in Portugal. It emits about 69,290 tonnes of CO₂e per year (Climate TRACE) — roughly the tailpipe emissions of 16,152 cars. Its CO₂ per unit of capacity is about 79% below the median steel plant.

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-1567009.

Em contexto: como esta instalação se compara

Com 600,000 t of steel, SN MAIA Siderurgia Nacional steel plant é abaixo de a mediana de steel plant em Portugal (1,100,000 t of steel). Subsetor: iron-and-steel. Como steel plant, requer calor de processo intenso (tipicamente 800–1500°C) para suas operações industriais centrais — calor que deve ser fornecido por caldeiras, fornos ou combustão direta, e as perdas através de vasos e tubulações não isolados representam combustível desperdiçado. O isolamento modular removível pode reduzir essas perdas em 80–96%, esfriando superfícies a ≤45°C, com payback geralmente inferior a 2 anos. As usinas de aço queimam carvão em altos-fornos ou usam arcos elétricos para derreter sucata; em ambos os casos, o metal fundido deve ser mantido acima de 1.500°C e transferido através de tubulações e vasos de calor extensos.

Comparação de capacidade e intensidade de CO₂ calculada a partir dos dados de instalações industriais Climate TRACE; função do setor baseada em referência de engenharia.

What 69,290 t CO₂e a year looks like

This facility's reported annual CO₂e in the everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:

Equivalencies: US EPA Greenhouse Gas Equivalencies. Emissions: Climate TRACE.

Capacity vs largest steel plants in Portugal

Reported capacity (t of steel), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).

Operator

Operated by SN MAIA Siderurgia Nacional SA. All facilities by this operator →

Local climate

SN MAIA Siderurgia Nacional steel plant sits in a warm-summer Mediterranean climate zone (Köppen Csb), at 41.3°N in the northern hemisphere.

Köppen zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

How it compares & nearby sites

The #2 largest of 2 steel plants in Portugal by reported capacity.

Nearby industrial sites

• Tecpress-Tecnicas De Impressão, Ldaq · Textiles · 2,714 t CO₂
• Castro & Silva · Textiles · 2,714 t CO₂
• Gofer Socks · Textiles · 2,714 t CO₂
• Super Bock Bebidas S.A. - Centro De Produção De Leça Do Balio (Ci) · Food & Beverage · 136,557 t CO₂
• Emar Ii Trading Internacional Lds · Textiles · 2,714 t CO₂
• Finieco, Sa · Textiles · 2,714 t CO₂

Location

Coordinates 41.25449, -8.5551. View on OpenStreetMap.

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• Typical payback up to 2 years

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Frequently asked questions