Life cycle based greenhouse gas footprints of metal production with recycling scenarios

Nawshad Haque, Terry Norgate, Stephen Northey

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

4 Citations (Scopus)

Abstract

Life cycle assessment (LCA) is a recognized tool to evaluate various processing routes for metal production. Declining ore grades and higher specific energy requirements for primary metal production put greater emphasis on recycling. Greenhouse gas (GHG) emissions of steel and aluminium metal production were quantified with recycling scenarios using material recovery facility (MRF) data from the database of SimaPro LCA software. The GHG footprint of the MRF is relatively minor compared with that of associated transport during collection (i.e. 10 times more than MRF) of curbside recyclable material. Additionally, if the bulk recyclable material is sent overseas (i.e. Australia to China) from the MRF for further processing, the GHG footprint of shipping can significantly be larger compared with the sum of the collection and MRF (assuming electricity is from same source). Thus opportunities exist for reducing GHG emissions from secondary metal production if it is processed close to the MRF.

Original languageEnglish
Title of host publicationEPD Congress 2014 - Held During TMS 2014 143rd Annual Meeting and Exhibition
PublisherThe Minerals, Metals & Materials Society
Pages113-120
Number of pages8
ISBN (Print)9781118889763
Publication statusPublished - 1 Jan 2014
Externally publishedYes
EventEPD Congress held at the Annual TMS Meeting and Exhibition 2014 - San Diego, United States of America
Duration: 16 Feb 201420 Feb 2014

Conference

ConferenceEPD Congress held at the Annual TMS Meeting and Exhibition 2014
Abbreviated titleEPD Congress 2014
CountryUnited States of America
CitySan Diego
Period16/02/1420/02/14

Keywords

  • Life Cycle Assessment (LCA)
  • Materials recovery facility
  • Metals
  • Recycling
  • Sustainability

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