A Study on the Carbon Footprint Accounting of Metallurgical Oxygen Based on the Life Cycle Assessment Method
ZHANG Qi
GUO Jun
QI Yinghuan
Abstract：Against the backdrop of global efforts to address climate change and China's promotion of the"dual carbon"strategy,controlling carbon emissions in the metallurgical industry,as a high-energy-consuming sector,is particularly critical.This study employs the life cycle assessment method,in accordance with ISO 14067:2018,to conduct a carbon footprint assessment of pipeline oxygen with a purity of 99.7%for metallurgical use,produced by a specific company,following a"cradle-to-gate"approach.The system boundaries encompass raw material acquisition and processing,raw material transportation,and the production stage.The results indicate that the carbon footprint of 1 m3 of pipeline oxygen is 0.500 4 kgCO2e.Among these,the production stage(A3)accounts for 99.78%of the total carbon emissions,with electricity consumption being the primary contributing factor.This research provides data support and methodological references for metallurgical enterprises in accounting for Scope 3 emissions and optimizing carbon management within the supply chain.
Keywords：metallurgical industrypipeline oxygencarbon footprintlife cycle assessmentaccounting model
Publication Date：2025-10-20
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：5( 28-32 )