Ferroalloy raw materials methodology
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The category business/processes/production/ferroalloy/rawmaterials is aimed towards industry professionals to enable them to prepare inventories of greenhouse gas emissions from ferroalloy production. Ferroalloy is the term used to describe concentrated alloys of iron and one or more metals such as silicon, manganese, chromium, molybdenum, vanadium and tungsten. Silicon metal production is usually included in the ferroalloy group because silicon metal production process is quite similar to the ferrosilicon process. Ferroalloy production involves a metallurgical reduction process that results in significant carbon dioxide emissions.
The methodology provided in this category represents the Tier 2 and Tier 3 approach described by the IPCC Guidelines for National Greenhouse Gas Inventories (NGGIP) and calculates on the basis of raw material inputs to the ferroalloy production process.
How to use this category
To use this category use the typeOfReducingAgent drill-down to select the reducing agent type being used from the following options:
- coal (for FeSi and Si-metal)
- coal (for other ferroalloys)
- coke (for FeMn and SiMn)
- coke (for Si and FeSi)
- coke (for other ferroalloys)
- prebaked electrodes
- electrode paste
- petroleum coke
- reducingAgentQuantity
- oreQuantity
- oreCarbonContent
- slagQuantity
- slagCarbonContent
- productQuantity
- productCarbonContent
- nonProductOutgoingStreamQuantity
- nonProductOutgoingStreamCarbonContent
For Tier 3 calculations the following profile item values can also be specified.
Use either:
- reducingAgentCarbonContent (decimal fraction, 0-1)
- percentageAsh: within reducing agent (decimal fraction, 0-1)
- percentageVolatiles: within reducing agent (decimal fraction, 0-1)
- carbonContentInVolatiles: within reducing agent (decimal fraction, 0-1)
UID | Label |
---|---|
KE2UH99S3J44 | coal (for FeSi and Si-metal) |
HEYARZ6MJNBF | coal (for other ferroalloys) |
HM9EOZPJIMPI | coke (for FeMn and SiMn) |
KTCMATUSZZ6J | coke (for other ferroalloys) |
MXCK2BFPW2AW | coke (for Si and FeSi) |
R587DE1K4EJB | electrode paste |
F981612X05XT | petroleum coke |
NFW8YRFTPMC9 | prebaked electrodes |