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Clean Coal Technology Developments & the move towards CO2 Capture Dr John Topper IEA Clean Coal Centre, London STEP-TREC Programme,Trichy , December, 2013. Membership status of the IEA Clean Coal Centre at October 2013. Japan. Italy. Poland. Germany. Republic of Korea. CEC. S Africa.
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Dr John Topper
IEA Clean Coal Centre, London
Republic of Korea
Acentre of excellence for all aspects of clean coal knowledge transfer
Anglo American Thermal Coal
Beijing ResearchInstitute of Coal Chemistry
Electric Power Planning & Engineering Institute of China
Coal Association NZ
Examples of Best Practice Today in Coal Fired Power
Efficient Clean Power Tomorrow?
Status of Carbon Capture
Published by IEA November 2012
All views expressed are the speaker’s and not necessarily the IEA’s
Since the start of the 21st century, coal has dominated the global energy demand
picture, alone accounting for 45% of energy demand growth over 2001-2011
Fossil fuels account for 60% of the overall increase in demand,remaining the principal sources of energy worldwide
Change in power generation, 2010-2035
The need for electricity in emerging economies drives a 70% increase in worldwide demand, with China & India accounting for over half of the global growth
share of global
total (right axis)
Over 95% of those without electricity are in developing Asia or sub-Saharan Africa
& nearly two-thirds are in just ten countries (IEA WEO 2012)
USC, boilers supplied by Babcock Hitachi , using bituminous coal
USC, tower boiler, tangential wall firing, lignite of 50-60% moisture, inland
USC, tower boiler, opposed wall firing, international bituminous coal and Japanese coals, warm sea water
Reliance Power, 6 x 660 MW supercritical units.
Plant connected to the grid in September 2012
Reduce non-GHG emissions
Efficiency improvement reduces specific fuel consumption and also reduces specific pollutant emissions.
Ageing infrastructure is the challenge in many OECD countries. Emerging economies have a growing demand for electricity.
Decrease generation from subcritical
Install CCS*on plants over supercritical
Increase generation from high-efficiency technology (SC or better)
*CCS (Post-combustion, Oxyfuel, Pre-combustion CO2 capture)
Global coal-fired electricity generation (TWh)
HELE Plants with CCS*
* CCS fitted to SC (or better) units.
Three processes essential to achieve a low-carbon scenario
Efficiency in 2DS
CO2 abatement by CCS
Average CO2 intensity factor in 2DS (gCO2/kWh)
Share of CCS (1=100%)
Share of CCS
Raising efficiency significantly reduces the CO2/kWh emitted.
EU av hard coal
PC/IGCC hard coal
CO2 emission reduction by key technologies
Latrobe Valley lignite (Australia)
but deep cuts
only by CCS
Data for hard coal-fired power plants from VGB 2007; data for lignite plants from C Henderson, IEA Clean Coal Centre; efficiencies are LHV,net
Energy Efficiency makes big change but deep cuts of CO2 emission can be done only by Carbon Capture and Storage (CCS)
700°C/ 30 - 35MPa
- Nickel-based super-alloys
- Ferrite/Austenitic alloys
Nickel-based super-alloys will enable plant components to withstand temperatures of 700ºC and beyond.
Advanced lignite pre-drying in pulverised coal combustion
The steam cycle is optimised for maximum efficiency.
New 500MW co-firing facility is largest in the world
Capacity to co-fire >1.5m tonnes pellets per yearDrax Power in UK - 500MW Co-firing Facility
New CO2 capture pilot plant
PSE-CO2 project : CO2 Capture Pilot Plant
Puertollano IGCC power plant and pilot plant location
Pilotplant general view
IGCC powerplant general view
Courtesy of Elcogas
As reported in Power Engineering magazine