To use this category, simply create a profile item - there are no drill choices.
Next, set the quantity of the carbonate flux used by setting the fluxQuantity profile item value. The returned amount represents CO2 emissions associated with this quantity of flux, assuming that the quantity specified represents 100% calcium carbonate (limestone). The calculation uses a default value for CO2 emissions per unit of calcium carbonate, based on the known stoichiometric relationship between the two.
Users can override these assumptions if appropriate, for a more accurate calculation. The purity (i.e. percent carbonate) of the flux can be specified using the fluxPurity profile item value. If a type of carbonate other than calcium carbonate is used, users can directly specify the weight fraction of carbon using the fluxCarbon profile item value. In both cases, these should be expressed as decimal fractions, i.e. between 0-1.
Products and by-products
The quantity of process products and by-products, together with their carbon contents can also be specified. The carbon retained within these products is subtracted from the basic calculation of carbonate flux-associated emissions. Use the following profile item values to specify these quantities where appropriate:
- Iron: ironQuantity (mass-based quantity)
- Steel: steelQuantity (mass-based quantity)
- Coke: cokeQuantity (mass-based quantity)
- Residual oil: oilQuantity (liquid volume-based quantity)
- Tar: tarQuantity (liquid volume-based quantity)
- Coke oven gas: cokeOvenGasQuantity (gaseous volume-based quantity)
- Blast furnace gas: blastFurnaceGasQuantity (gaseous volume-based quantity)
The Climate Leaders documentation provides default carbon content values for iron and steel products as well as several common by-products. Users can specify quantities of each of these and override the default carbon content factors if facility-specific data are available. Use the following profile item values to specify these quantities where appropriate:
- Iron: ironCarbon
- Steel: steelCarbon
- Coke: cokeCarbon
- Residual oil: oilCarbon
- Tar: tarCarbon
- Coke oven gas: cokeOvenGasCarbon
- Blast furnace gas: blastFurnaceGasCarbon
Note: the default carbon content factors for coke oven gas and blast furnace gas have been converted from kg per 1000 ft''3'' used in the original documentation into kg per ft''3'', using a factor of 1/1000.
|5NO62HQB9LVU||primary iron and steel|