Abstract:The shift toward unconventional CO/CO2 sources
for chemicals
production is accompanied by several challenges, e.g., those associated
with their composition. The use of CO/CO2-rich steel mill
gases as an alternative feedstock promotes carbon circularity, contributing
to reducing the industry’s carbon footprint. The upgrading
of steel mill gases as a carbon source in some cases requires efficient
and selective H2 removal. This study investigates the preferential
oxidation of H2 in CO-rich streams, resembling bla… Show more
“…Selective catalytic combustion is a process where pure O 2 is used to decrease the amount of H 2 in the BFGs via a selective oxidation reaction. 23 With regards to polyol production, CO-based polyols were assessed, while CO 2 -based polyols were not considered. Scenario 1 avoids the dependency between the two products observed in scenarios 2 and 3.…”
Section: Methodsmentioning
confidence: 99%
“…For this, a selective catalytic combustion method for conditioning BFGs was developed. 23 In this method, the H 2 content is decreased in BFGs via the selective oxidation of H 2 over a Ni-based catalyst. Currently, selective catalytic combustion reflects a TRL 5.…”
Section: Methodsmentioning
confidence: 99%
“…2.2.1 Projected technology scenario definition. Several laboratory scale and pilot scale implementations of the CCU technology were developed [22][23][24] according to three scenarios. The Aspen Plus process flow sheets were developed by technology developers deciding on installations and process operating conditions and showing the equipment of the three upscaled CCU technology scenarios.…”
Section: Scope Definitionmentioning
confidence: 99%
“…22 The H 2 gas in BFGs can interfere with the reaction of polyol production. 22,23 Thus, BFGs should be conditioned prior to the production of polyols to decrease the H 2 content in BFGs. For this, a selective catalytic combustion method for conditioning BFGs was developed.…”
This study presents an ex-ante life cycle assessment of a carbon capture and utilization technology that converts carbon emissions from the blast furnace gas of a steel mill to valuable intermediates for the production of polyols.
“…Selective catalytic combustion is a process where pure O 2 is used to decrease the amount of H 2 in the BFGs via a selective oxidation reaction. 23 With regards to polyol production, CO-based polyols were assessed, while CO 2 -based polyols were not considered. Scenario 1 avoids the dependency between the two products observed in scenarios 2 and 3.…”
Section: Methodsmentioning
confidence: 99%
“…For this, a selective catalytic combustion method for conditioning BFGs was developed. 23 In this method, the H 2 content is decreased in BFGs via the selective oxidation of H 2 over a Ni-based catalyst. Currently, selective catalytic combustion reflects a TRL 5.…”
Section: Methodsmentioning
confidence: 99%
“…2.2.1 Projected technology scenario definition. Several laboratory scale and pilot scale implementations of the CCU technology were developed [22][23][24] according to three scenarios. The Aspen Plus process flow sheets were developed by technology developers deciding on installations and process operating conditions and showing the equipment of the three upscaled CCU technology scenarios.…”
Section: Scope Definitionmentioning
confidence: 99%
“…22 The H 2 gas in BFGs can interfere with the reaction of polyol production. 22,23 Thus, BFGs should be conditioned prior to the production of polyols to decrease the H 2 content in BFGs. For this, a selective catalytic combustion method for conditioning BFGs was developed.…”
This study presents an ex-ante life cycle assessment of a carbon capture and utilization technology that converts carbon emissions from the blast furnace gas of a steel mill to valuable intermediates for the production of polyols.
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