Low-emission Integrated Steelmaking Process
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Transcript of Low-emission Integrated Steelmaking Process
Low-emission Integrated Steelmaking Process (ISP)
MINERALS DOWN UNDER NATIONAL RESEARCH FLAGSHIP
Sharif JahanshahiTheme Leader – Sustainable Metal Production
Overview of SMP Theme |
Presentation by Sharif Jahanshahi, PhD
Dr. Sharif Jahanshahi has over 30 years experience in R&D across; high temperature processing of ferrous and base metals, thermodynamics and kinetics of high temperature systems, melt chemistry, process modelling, simulation and development
Currently consulting for leading global players in the metallurgical industry through Meta-Logical Solutions Pty Ltd.
Website: http://www.metalogical.solutionsEmail: [email protected]
Driver 1: GHG Reduction
0
500
1000
1500
2000
2500
Glo
bal G
HG e
mis
sion
s (M
t CO
2e /
y)
0
10
20
30
40
50
Aust
ralia
n G
HG e
mis
sion
s (M
t CO
2e /
y)
Global Australia
~ 2.2 billion tonnes of CO2-e
per annum!
Driver 2: Salinity
Problem2M ha of farmland degraded by salinity
(6M ha by 2040)SolutionPartial revegetation with Mallee treesElectricity and charcoal from the
biomassChallengeFull rehabilitation results in 25Mt/a
biomass – charcoal market?
• Special planting of trees in the Western Australian wheat belt could restore soil and land quality
• Plantation of over 12,000 ha in WA has taken place recent years
Metallurgical application of the charcoal in smelting (eg ironmaking) could be a GHG neutral alternative to coal
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ObjectivesThe low-emission Integrated Steelmaking Process (ISP) aims to:
– Substantially (>50%) reduce CO2 emissions by the steel industry
– Address salinity affected regions– Recover high grade waste heat from molten slags– Reduce to zero the use of fresh water in the cooling of molten slags – Enable waste (iron making slag) to be converted into a useful product (cement).
The concept is based on industrial ecology and if fully implemented will also address other environmental issues e.g. restoring soil and land quality in salinity affected regions and production of bio-based products from renewable sources.
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What is ISP
• ISP has been under development by CSIRO since 2006
• ISP has 3 key components:
a) Slow Autogenous Pyrolysis (SAP) for conversion of biomass to biochar and other valuable by-products (bio-oil, bio-energy)
b) Use of Bio-Char (UBC) as fuel and reductant in iron and steel making processes
c) Dry Slag Granulation (DSG) to recover high grade waste heat and convert slag into Portland cement substitute.
• ISP development has been supported since 2006 by BlueScope and OneSteel
Our Vision for Future of Australian Industries
Biomass Energy Iron & steel Energy CementSalinity control
Dry granulation
Cement makingAgriculture
Bio-fuel processing Smelting
TREE PLANTING BIOCHAR HOT SLAG SLAGBIOMASS
Look at the CSIRO, which has been working with BlueScope and OneSteel on a low-carbon breakthrough program for five years. CSIRO's integrated steel-making process is one of the few known technologies which can deliver a substantial cut in carbon emissions at minimal cost to smelters. The estimated value of that knowledge over the next twenty years is $42 billion, assuming just 10 per cent global market penetration. That is the potential we can unlock in this country.
Senator Kim Carr, Former Minister for Innovation, Industry Science & Research
BIO-OIL
Appendix
Overview of SMP Theme |
Fuel Reductant
Energy
Converter
CO2
+
H2O
Plants, Algae farm
Solar Energy
CO H2
CO2CO2 H2O
Power plant
Metal & Building Products
Biomass
(Charcoal)
Ore, fluxes
Concept - Closing the Carbon Loop
By-products
electricity Bio-oil
• ISP has been under development by CSIRO since 2006 in collaboration with the Australian steel industry.
• The objectives of ISP are to:− Introduce deep cuts (>50%) in net CO2
emissions by the steel industry− Recover high grade waste heat from molten
slags− Reduce fresh water usage in the cooling of
molten slags − Convert 100s million tonnes/year of waste
(iron making slag) into a high value product (“green cement”).
Low-emission Integrated Steelmaking Process (ISP)
ISP has 3 components: a) Slow Autogenous Pyrolysis (SAP)
for conversion of biomass to biochar and other valuable by-products (bio-oil, bio-energy)
b) Use of Designer Bio-Char (DBC) as fuel and reductant in iron and steel making processes
c) Dry Slag Granulation (DSG) to recover high grade waste heat and convert slag into Portland cement substitute.
Concept Developmen
t
Techno-economic and LCA
Proof of Concept - Large Scale Piloting
Demonstration via Full Scale Plant Trials
2006
2012
2016
2009