Cradle to Gate
Identity ID
f4e3cd36-07df-4fc3-8a84-8847a8406e92
Materials
Associated ID
d8f28886-3e17-4b53-9b1e-4ae615ea490a
Included activities starts
Included activities ends
Description
pellet is primarily used in blast furnace steelmaking. This dataset includes major raw and auxiliary materials, energy inputs, atmospheric emissions, and waste generated during the production process. Desulfurization gypsum is a by-product of this process. Infrastructure such as production equipment manufacturing and facility construction is not included within the system boundary of the dataset. The life cycle inventory is compiled from data obtained from multiple sources. The pellet production process includes stages such as raw material mixing, pellet formation, drying, and calcination, with the calcination process mainly using the grate kiln-rotary kiln technology.
Activity Description
The production process of pelletized ore includes procedures such as raw material mixing, pellet formation, drying, and calcination, with the calcination process mainly employing the grate-kiln technology. The unit process activities include energy consumption (especially fuel consumption during pellet calcination), auxiliary material usage, as well as waste treatment and pollutant emissions.
Process Description
Pelletized ore is an iron ore product primarily used in blast furnace steelmaking. It is made from iron ore fines and binders through processes of pelletizing, drying, and roasting to form hard, spherical granules. Pelletized ore has high iron content, uniform chemical composition, and excellent reducibility, making it an ideal raw material for steelmaking. Its highly uniform size and shape enhance permeability and thermal efficiency of the burden layer inside the blast furnace, thereby improving steelmaking efficiency and reducing production costs.
Time period
2021
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The pelletizing process of iron ore pellets mainly adopts the grate-kiln technology. The raw pellets are roasted at high temperatures, forming hard spherical particles through physical and chemical changes.