Energy Consumption and Greenhouse Gas Emissions of Nickel Products

Energies

Anders Tilliander¹  PärG. Jönsson¹  PeterB. Samuelsson¹  Wenjing Wei¹  Rutger Gyllenram¹ 

[1] Department of Materials Science and Engineering, Royal Institute of Technology, 114 28 Stockholm, Sweden;

关键词: nickel;    LCA;    energy consumption;    greenhouse gas emission;    material balance;    energy balance;   

DOI  :  10.3390/en13215664

来源: DOAJ

【 摘 要 】

The primary energy consumption and greenhouse gas emissions from nickel smelting products have been assessed through case studies using a process model based on mass and energy balance. The required primary energy for producing nickel metal, nickel oxide, ferronickel, and nickel pig iron is 174 GJ/t alloy (174 GJ/t contained Ni), 369 GJ/t alloy (485 GJ/t contained Ni), 110 GJ/t alloy (309 GJ/t contained Ni), and 60 GJ/t alloy (598 GJ/t contained Ni), respectively. Furthermore, the associated GHG emissions are 14 tCO₂-eq/t alloy (14 tCO₂-eq/t contained Ni), 30 t CO₂-eq/t alloy (40 t CO₂-eq/t contained Ni), 6 t CO₂-eq/t alloy (18 t CO₂-eq/t contained Ni), and 7 t CO₂-eq/t alloy (69 t CO₂-eq/t contained Ni). A possible carbon emission reduction can be observed by comparing ore type, ore grade, and electricity source, as well as allocation strategy. The suggested process model overcomes the limitation of a conventional life cycle assessment study which considers the process as a ‘black box’ and allows for an identification of further possibilities to implement sustainable nickel production.

【 授权许可】

Unknown