Member State Perspectives PROMOTING HIGH- EFFICIENCY LOW-EMISSION COAL POWER PLANTS JAPAN

Transcription

1 Member State Perspectives PROMOTING HIGH- EFFICIENCY LOW-EMISSION COAL POWER PLANTS JAPAN

2 CURRENT COAL SITUATION Principles of Policy and Positioning of Coal in the Basic Energy Plan The Cabinet Council decided a new Strategic Energy Plan on April 11, Coal is reappraised as a base load fuel Enhancement of environmental compliance in coal Clean Coal Technology (1) Principles of the Energy Policy 3E + S Stable supply (Energy security) Cost reduction (Economic Efficiency) Environment Safety (2) Position of Coal Important energy source for the base load power supply Development of high efficiency technology (such as IGCC, etc) METI

3 COAL POLICY FRAMEWORK Coal will continue to be important part of energy source diversification in Japan. Coal Policy Ensuring sustainable supply of coal resources Promotion of coal utilization technologies Stabilization of energy demand / supply balance. <Acquisition of interests> <Enhancement of relationships with coal producing countries> <Moderation of coal demand/supply through utilization of low rank coal> Development promotion and overseas deployment of clean coal technologies <Efficiency improvement, CO2 reduction, utilization of low rank coal, etc. > <Contribution to CO2 reduction overseas through overseas deployment of clean coal technologies> Policy tools G to G policy dialogues Government supported programs, investment/liability assurance, ODA, yen loan, etc. by JBIC, NEXI Coal Gasification furnace Exhaust heat recovery boiler Gas turbine Steam turbine METI Exhaust gas

4 CLEANER COAL KEY CHALLENGES Coal Cleaning Washing Clean Coal Technology Environmental Protection Global Warming High Efficiency CO 2 Capture Biomass Co-combustion Low NOx Combustion Flue-gas Treatment PF Combustion Gasification De-SOx De-NOx Dust Removal SC, USC, A-USC IGCC, IGFC CCS

5 CLEANER COAL KEY CHALLENGES Coal Cleaning Washing Clean Coal Technology Environmental Protection Global Warming High Efficiency CO 2 Capture Biomass Co-combustion Low NOx Combustion Flue-gas Treatment PF Combustion Gasification De-SOx De-NOx Dust Removal SC, USC, A-USC IGCC, IGFC CCS

6 Coal Cleaning Gravity Concentration Using Dense Medium Coal (Light) 1.5g/cm 3 Mineral (Heavy) 2.5g/cm g/cm 3 Dense Medium Heavy:>1.8 g/cm 3 M.M.

7 CLEANER COAL KEY CHALLENGES Coal Cleaning Washing Clean Coal Technology Environmental Protection Global Warming High Efficiency CO 2 Capture Biomass Co-combustion Low NOx Combustion Flue-gas Treatment PF Combustion Gasification De-SOx De-NOx Dust Removal SC, USC, A-USC IGCC, IGFC CCS

8 CLEANER COAL KEY CHALLENGES Components of Coal and Emissions Component Molecule Content(%) Emission Problems Countermeasures Carbon C CO2 Global Warming High efficiency, CCS Hydrogen H2 around 5 Steam None Oxygen O2 around 8 Nitrogen Sulpher Ash Heavy metals N2 S SiO2, Fe2O3, Al2O3, etc. Hg, Cl, F, Cd, Se, Pb, etc Support combustion NOx SOx Fly ash Heavy metals None Problems torespiratory organ Problems torespiratory organ Problems torespiratory organ Health Problems De-NOx(SCR) De-SOx EP, Bag Filter, Cyclone Seperator Activated Carbon, Wet Scrubber

9 De-NOx Catalyst De-SOx Electrostatic Precipitator

10 Environmental Protection of Coal Fired Power Station

11 NOx and SOx emission levels in Power Generation by country Sulfur oxides Nitrogen oxides USA Canada UK France Germany Italy China Japan [Isogo]

12 World Highest Efficient Coal fired Power Station ---- Isogo No.2 600MW 600/620C USC (Japan) ----

13 CLEANER COAL KEY CHALLENGES Coal Cleaning Washing Clean Coal Technology Environmental Protection Global Warming High Efficiency CO 2 Capture Biomass Co-combustion Low NOx Combustion Flue-gas Treatment PF Combustion Gasification De-SOx De-NOx Dust Removal SC, USC, A-USC IGCC, IGFC CCS

14 High-Efficient Coal Fired Power Generation Pulverized Coal (USC) High Steam Temp: 620C IGCC (1500C Class Gas Turbine) Efficiency: HHV Basis IGFC Boiler Steam Turbine Gasifier Gross Efficiency :44% Gas Turbine Gross Efficiency :49% Steam Turbine Gasifier Fue lcel l Gas Turbine Gross Efficiency :60% Steam Turbine Net Efficiency :41 Commercialized Net Efficiency :46 Commercialized Net Efficiency :54 Under Development 14

15 CCS (CO 2 Injection Point)

16 Biomass Co-combustion

17 Amount and Utilization of Ash in Japan ROADBED MATERIAL Utilization of ash from power stations 100 Amount of ash (Thousand tonnes) Percent of utilization(%) Total ash Utilized ash Percent of utilization ROADBED MATERIAL FOR ROAD WORK DAM CONCRETE 0 0 JCOAL Data Artificial Reef

18 AREAS FOR COOPERATION Coal should be used as a main fuel in the future. Non-OECD countries will use much more coal than OECD countries in the future. However, consideration should be paid to reduce air pollution and GHG emission in order to continue using coals. Now, Promotion of Clean Coal Technology is essential. Japan develops promotion and overseas deployment of clean coal technologies introduced here.

19 Thank you.