Beyond electricity: Is hydrogen the key to greener smelting and refining?

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This analysis, conducted using Wood Mackenzie’s Emissions Benchmarking Tool (EBT), reveals the emission profiles of critical metals. The coal required for metallurgical reactions in ironmaking drives 93% of the global greenhouse gas (GHG) emissions from the iron and steel industry. On the other hand, 62% of non-ferrous metal production emissions are tied to electricity produced on-site or from the grid, underlining the urgent need for green energy.

Table of contents

  • Iron & Steel: the red spot of carbon intensity in ironmaking
  • Aluminium: The broad spectrum of emissions in electricity generation
  • Copper: the environmental toll of mining and transport
  • Zinc: Uncovering the Emissions Intensity of Electrolytic Smelting
  • Zinc smelters
  • Steelmaking
  • Aluminium
  • Copper smelters and semi-fabricators

Tables and charts

This report includes 9 images and tables including:

  • Iron & Steel Value Chain Emissions
  • Primary aluminium process flow diagram
  • Aluminium value chain emissions
  • Copper value chain emissions
  • Copper production process flow diagram
  • Zinc value chain emissions
  • Zinc process flow diagram
  • Global metals value chains emissions sources
  • Comparative assessment of hydrogen integration across metals value chains.

What's included

This report contains:

  • Document

    Beyond electricity: Is hydrogen the key to greener smelting and refining?

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