Transcript CLIMATE CHANGE & STEEL SECTOR

IPCC WORKING GROUP III’S DISSEMINATION
WORKSHOP ON FOURTH ASSESSMENT REPORT
October 11-12, 2007 Kolkata
CLIMATE CHANGE & STEEL SECTOR
Sustainable Development & Steel
• Steel is one of the most common materials that we come into
contact with every day.
• Progress would be impossible without steel.
• Steel is the most recycled material in the world.
• In 2006 the world produced 1.24 billion tonnes of steel. More
than 40% of the new steel was created using recycled steel.
• Steel helps us in meeting the challenge of sustainable
development.
GHG Emission & Steel Industry
Commitment by Steel Industry
The steel industry has made significant reductions in its CO2 emissions
since 1990. It is committed to further reduce the CO2 emissions and help
the world in curtailing rising greenhouse gas emissions resulting in adverse
climate change.
CO2 Emission from Steel Industry
Inspite of significant efforts to reduce energy consumption, CO2
emissions from Steel Sector has gone up.
As production continues to grow, absolute CO2 emissions will
continue to increase despite energy efficiency efforts.
The Steel Industry will remain in the spotlight.
International Initiative
Initiative by IISI
• Formation of sectoral expert group for climate change
• Adoption of seven principles committed to;
1. Expanding the use of current efficient technologies
2. Undertaking R&D for Introducing new technology
3. Maximize recycling
4. Value addition to waste and by-products
5. Making new generation steels to manufacture energy efficient
products (ULSAB, HT Steel Sheets)
6. Adopting common and verifiable CO2 emission reporting
7. Adopting a global sector-specific approach
International Initiative
Initiative by APPCDC
• Six countries namely, China, Australia, India, Japan,
South Korea, and the USA representing over 50% of
world steel
production has formed a partnership to
address energy issues vis-à-vis CO2 emission reduction
through technology and process know how transfer.
• Creation of Steel Task Force within APPCDC.
• Action plan has been prepared.
• Document on SOACT (BAT) prepared by partner
countries to be formally released.
Indian Steel Industry
• Indian Steel Industry represents 4% production and 4.5% CO2
emission respectively among world steel producers.
• 8 large Integrated Steel Plants.
• Large secondary producers - sponge iron producers, mini
blast furnaces, electric arc furnaces, induction furnaces, rerolling furnaces and Iron & Steel foundries.
• Technologies: BF-BOF, Scrap EAF, DRI-EAF and COREX.
• Indian Steel Plants emit 2.5 to 3.0 TCO2/t of steel produced
against world average of <2.
• Indian Steel Industry is generally constrained due to adverse
raw material quality.
• Huge potential exists in India for improving energy
consumption and reducing CO2 emission.
Technological Options – Iron & Steel
Large Units
• Coke Dry Quenching
• Pulverized Fuel Injection in Blast Furnaces
• BOF Gas Recovery
• Recuperative / Re-generative Burners
• Continuous casting / thin section continuous casting
• Hot charging
• Top Recovery Turbine
• Waste Heat Recovery
• By-product Gas based Steam & Power Generation
Small Units
• Long-term cluster specific technology intervention
programs on technology development, demonstration
and wide-scale adoption
Tata Steel’s Response to Climate Change
• Policy Statement – Energy Policy, Environment Policy
• Adoption of energy efficient technology
• Up-gradation of equipment and process
• Waste heat recovery
• Maximum utilization of by-product fuel
• Regular energy audit and review
• Benchmarking
• Monitoring and measurement
Technology Up-gradation – Tata Steel
• Replacement of Bessemer Converters & Open Hearth Furnaces
by Basic Oxygen Furnaces (LD Converters)
• 100% Continuous Casting - Slab & Billet Casters
• Regenerative type vertical Shaft Kilns for lime calcination
• Stamp Charge Coke Oven Batteries
• Raw Material Bedding & Blending Plant
• Modern Wire Rod Mill, Hot Strip Mill, Cold Rolling Mill, Bar Mill
• High productivity Blast Furnace
• Computer Controlled Energy Management Center
• Waste heat recovery from BF stoves
• Conversion of all Coal Fired Boilers to Gas Fired Boilers
• Installation of Coke Dry Quenching facility at Coke Plant
SPECIFIC ENERGY CONSUMPTION
( Gcals/tcs )
9
8.717
8.355
7.997
8
7.778
7.401
7.260
6.977
7.065
02-03
03-04
6.965
6.959
6.717
7
6
5
96-97
97-98
98-99 99-2K 2K-01
01-02
04-05
05-06
06-07
CARBON DIOXIDE EMISSION (t/tcs)
3.5
3.19
3.08
2.91
3
2.82
2.73
2.48
2.5
2.46
2.4
2.31
2.28
2.13
2
96-97
97-98
98-99
99-2K
2K-01
01-02
02-03
03-04
04-05
05-06
06-07
Thank you