Urea based additives

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The category /transport/emissionscontrol/ureabasedadditives contains a methodology for caluclating non-combustive CO2 emissions from urea-based additives in catalytic converters, sourced from the IPCC Guidelines for National Greenhouse Gas Inventories.

To use this this category, create a profile item (this category contains no drill options) and set the quantity of urea-based additive consumed using the mass profile item value, and specify its purity using the purity profile item value. 'Purity' refers to the fraction of urea within the additive and should be expressed as a value between 0-1.

The calculation for non-combustive CO2 emissions is as follows:

CO2 emissions = quantity consumed x (12/60) x (44/12) x purity

The value 12/60 represents the proportion of carbon (C), by weight, in urea (CO(NH2)2), while the value 44/12 represents the weight of CO2 relative to C.

UIDLabel
9FYEJBJISG7M 9FYEJBJISG7M
Mass of additive used
Concentration of additive (%)
Name: Urea_based_additives
Provenance: IPCC
Parent Category: Emissions control
Full path: /transport/emissionscontrol/ureabasedadditives
calculation catalytic_converter direct emissions_control IPCC IPCC_energy IPCC_energy_mobile physical_properties transport urea