Blast furnace gas (market for blast furnace gas)

Emissions generated by the activity within the product supply chain as described in ecoinvent v3.10. The product blast furnace gas' is a waste under the category of industrial wastes. It is primarily generated in steelmaking process during the smelting process in the blast furnace. 'blast furnace gas' contain the following fractions: 100% blast furnace gas. By the database default (and per unit of reference product) 'blast furnace gas' has 0% water on wet mass basis (100% dry matter) and Carbon present is of only fossil origin (15.66% on a dry matter basis). It has no heating value. This kind of by-product (recyclable or waste) is generated from ordinary transforming activities and as such can be considered for modelling waste outputs of comparable composition. In the ecoinvent database this by-product is used in the following processes: iron pellet production; treatment of blast furnace gas in power plant. This by-product can be modelled on two levels: treatment activity and market activity. The former one refers to the specific technology treating the by-product while the latter level represents a mix of treatments. Users are encouraged to inspect the modelling assumptions of the treatment activities and when selecting the market to additionally inspect the treatment mix. Collection and transportation of this by-product is accounted in the respective market activity users are advised to inspect and modify the average transportation distances for a case specific modelling. The cut-off classification is Recyclable. The activity type is market activity. The reference product amount is 1.