Description: technologyComment of pig iron production (RER): Typical blast furnace process
Types:
Text {
text_type: Report,
}
Comment: This is a market activity. Each market represents the consumption mix of a product in a given geography, connecting suppliers with consumers of the same product in the same geographical area. Markets group the producers and also the imports of the product (if relevant) within the same geographical area. They also account for transport to the consumer and for the losses during that process, when relevant. This is the market for 'pig iron', in the geography of Europe. This activity represents the supply of pig iron (hot metal) to steelmaking plants in Europe. Transport distances are based on the ecoinvent "Default Transport Assumptions" model, accessible on the ecoinvent website. This market is supplied by the following activities with the given share: pig iron production, RER: 1.0 generalComment of pig iron production (RER): "Background: This activity produces hot metal (pig iron) for use in steelmaking and cast iron production. Iron-bearing materials, additives and reducing agents are continuously fed into a charging chamber from a shaft above. A hot, oxygen-rich air blast is injected on the tuyère level and reacts with the reducing agents to produce (inter alia) carbon monoxide that in turn reduces iron oxides to molten, metallic iron. The liquid iron is collected in a hearth, along with the slag, and continually cast prior to transport to the steelmaking plant. The slag is typically processed to produce aggregate, graulate, or pellet for use in cement manufacture. Gases are collected at the top of the furnace and treated through wet scrubbing, with the resultant sludge typically returned to the sinter plant or disposed of in a landfill. Modelling approach: Data on were mostly taken from the IPPC Best Available Technology report from the European Commission (Remus et al., 2013); note that where only data ranges were provided, the geometric mean of reported values was used here. Additionally, 33% of dust and sludge by-products were assumed to be recycled internally (i.e. returned as an input to the process after it has been produced) based on measured data from plants worldwide reported by worldsteel (2010). References: Remus, R., Aguado-Monsonet, M. A., Roudier, S. & Samcho, L. D. (2013). JRC reference report - Best available techniques (BAT) reference document for iron and steel production. Joint Research Centre - European Commission, Luxemboug. Worldsteel (2010). Steel industry by-products. World Steel Association: Brussels, Belgium."
Origin: /Bund/UBA/ProBas
Tags: Roheisen ? Hochofen ? Manufacture of basic iron and steel ? Manufacture of basic metals ? Manufacturing ?
License: unbekannt
Language: Deutsch
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