bio-carbon for canadian iron and steel production... · bio-carbon for canadian iron and steel...
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![Page 1: Bio-Carbon for Canadian Iron and Steel Production... · Bio-Carbon for Canadian Iron and Steel Production Ka Wing Ng Metallurgical Fuels Laboratory Natural Resources Canada, CanmetENERGY](https://reader035.vdocuments.site/reader035/viewer/2022062923/5f0b212a7e708231d42efe83/html5/thumbnails/1.jpg)
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Bio-Carbon for Canadian Iron and
Steel Production
Ka Wing Ng
Metallurgical Fuels Laboratory
Natural Resources Canada, CanmetENERGY
BioCleanTech Forum
November 1-3, 2016 Ottawa, Canada
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CanmetENERGY-Ottawa
CanmetENERGY-Ottawa
leads the development of
energy S&T solutions for
the environmental and
economic benefit of
Canadians
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Metallurgical Fuels Lab
• Pierre Martin, Group Manager • 4 Research Scientists • 1 Research Engineer • 10 Technologists • Over 40 years experience in coal
carbonization and blast furnace ironmaking research
• Member of Canadian Carbonization Research Association (CCRA)
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Canadian Carbonization Research Association
Integrated Steel Mill Met Coal Producer
Cokemaker CanmetENERGY MFL
• Consortium of steel producers, coal producers and cokemakers • Collaborative research to address industrial needs • Met coal carbonization, Blast furnace ironmaking
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GHG Mitigation by Fuel Switching
Substitution of fossil carbon by renewable bio-carbon
Incorporation of bio-carbon in existing iron and steel making
facilities to avoid capital investment
Medium term goal (2030)
• 10% substitution metallurgical coal in cokemaking by renewable bio-
carbon.
• 100% replacement of injection coal in blast furnace ironmaking by
renewable bio-carbon
• 100% replacement of injection carbon (for slag foaming ) and charge
carbon (for supplementary energy) in EAF steelmaking by renewable
bio-carbon
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Coal Mine
Ironmaking
Cokemaking
1 tHM
350 kg Coke
655 kg Coal
~1.5 t CO2
495 kg Coking Coal
160 kg PCI Coal
Present
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Coal Mine
Biomass Collection Pyrolysis (yield 30%)
Ironmaking
Cokemaking
1 tHM
445 kg Coal
~1 t CO2
445 kg Coking Coal
700 kg Biomass
50 kg Biochar
210 kg Biochar
160 kg Biochar
Goal
350 kg Coke
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Bio-Char Supply Chain Pathway
Saw mill residues
Harvesting residues
Pulp mill residues
Demolition Wood
Torrefaction/ Slow Pyrolysis
Fast Pyrolysis
Hydrothermal Carbonization
Raw biomass Sources Pyrolysis
Blast Furnace Pulverized Coal Injection
Cokemaking
Electric Arc Furnace Steelmaking
Utilization
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Pyrolysis Technology Evaluation
To understand the effect of various factors on bio-char
properties to assist pathway selection
Effect of feedstock
Capability of pyrolysis technology in handling different
feedstocks
Effect of pyrolysis technology and processing conditions
Partners:
Ben Bronson (Bioenergy/CanmetENERGY): Fast Pyrolysis
Guy Tourigny (Bioenergy/CanmetENERGY): Torrefaction
Animesh Dutta (U of Guelph): Hydrothermal Carbonization
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Test Program
Saw Mill Residues
Harvesting Residues
Pulp Mill Residues
Demolition Wood
Torrefaction: Rotary Kiln CanmetENERGY
Fast Pyrolysis: Fluidized Bed CanmetENERGY
Hydrothermal Carbonization: U of Guelph
Bio-char properties
PCI Cokemaking EAF
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Saw Dust Torrefaction: Rotary Kiln
T3 T2
T1
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Torrefied Saw Dust- Composition
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Torrefied Saw Dust- Composition
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Torrefied Saw Dust- Yield
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Blast Furnace Ironmaking Coke, Iron Ore, Flux
Hot Blast
Pulverized Coal
Slag
Molten Iron (Hot Metal)
Hot Blast
Pulverized Coal
C (coke/injection coal) + O2( hot blast)
Iron Ore (Fe2O3) Metallic Fe
Molten Fe (Hot metal)
CO(g)
Heat
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Replacing PCI by Torrefied Saw Dust
Heat and mass balance modeling
Thermodynamic modeling
Effect on blast furnace operations
Fuel (coke + injectant) consumption
Alkaline (Na+K) accumulation
Potential GHG reduction
Raw biomass demand
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Carbon and Energy Input
Base Case (Coal Injection) Coke rate: 350kg/tHM Injection rate: 160 kg/tHM
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Alkaline Accumulation
Flux rate: 70 kg/tHM
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Alkaline Accumulation
Flux rate: 54 kg/tHM
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Potential GHG Reduction
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Next Step
Comparison of combustion kinetics of biochar produced
at different pyrolysis severity in CanmetENERGY
injection simulation rig
Pulverized coal injection simulation rig
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Future Work
Repeat analysis with biochar produced by
different pyrolysis technologies
different raw biomass materials
Supply information to steel producers, biochar producers
and raw biomass suppliers to assist decision making
Establishment of biochar supply chain to meet the
technical needs of steel production
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Acknowledgements
Natural Resources Canada Energy
Innovation Program
Canadian Carbonization Research
Association
Canadian Steel Producers Association