Top gas recycling revisited to reduce blast furnace CO2 emissions

Title: Top gas recycling revisited to reduce blast furnace CO2 emissions
Creator: Sukhram, Mitren; Lefebvre, Kyle; Aubry, Nicholas; Cameron, Ian; Ellis, Ben; Liu, Xinliang; Honeyands, Tom
Relation: AISTech 2021 Iron and Steel Technology Conference. Proceedings of AISTech - Iron and Steel Technology Conference (Nashville, TN 29 June - 1 July, 2021) p. 1432-1444
Publisher Link: http://dx.doi.org/10.33313/382/147
Publisher: Association for Iron & Steel Technology
Resource Type: conference paper
Date: 2021
Description: Blast furnace (BF) top gas recycling (O2BF) was tested by the ULCOS program to reduce CO2 emissions using the LKAB experimental blast furnace. During tests, the carbon rate was reduced by about 25%. Hatch and BHP re-visited the O2BF concept to assess if additional technologies could be implemented to further reduce CO2 emissions beyond what was achieved. Using a two-stage heat and mass balance model, viable operating conditions were established for a low-carbon-rate operation, significantly less than what was achieved in the ULCOS trials. Details of the enabling technologies to reach such low CO2 emission rates will be presented.
Subject: blast furnace; ironmaking; top gas recycling; low CO2 emissions technologies; SDG 13; Sustainable Development Goals
Identifier: http://hdl.handle.net/1959.13/1450528
Identifier: uon:43964
Identifier: ISBN:9781935117933
Identifier: ISSN:1551-6997
Language: eng
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