Steelmaking integrated with a polygeneration plant for improved sustainability

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Hamid Ghanbari, Mikko Helle, Frank Pettersson, Henrik Saxén
Publiceringsår: 2012
Tidskrift: Chemical Engineering Transactions
Tidskriftsakronym: CHEM ENGINEER TRANS
Volym: 29
Artikelns första sida, sidnummer: 1033
Artikelns sista sida, sidnummer: 1038
Antal sidor: 6
ISSN: 1974-9791
eISSN: 2283-9216


Abstrakt

In this study, a process integration approach was used to investigate process economics and carbon dioxide emissions from a steelmaking plant. The suggested superstructure includes the main process units in steelmaking and a polygeneration system producing methanol, heat and electricity. In the steel plant, advanced blast furnace technologies such as top gas recycling and cold oxygen injection have been implemented. The effect of partially replacing of coke with alternative fuels with lower carbon barrier, such as oil, natural gas and biomass on liquid steel production cost and carbon dioxide emission from the integrated plant has been investigated. The results of the analysis demonstrate that an integration of steelmaking with a polygeneration system could increase the total energy efficiency and decrease the emissions of the system. The combinations of technologies and alternative fuels were found to reveal potential paths towards more sustainable steelmaking concepts.

Senast uppdaterad 2020-28-05 vid 06:01