india-japan industry & energy seminar clean air india
TRANSCRIPT
India-Japan Industry & Energy Seminar
Clean Air India ;
Technological Options and Emission Improvement
“Introduction of technologies for reducing air polluting
materials from power generation sector”
May, 2018
Noboru AOKI
Director General, Environment Department
New Energy Development and Industry Development
Organization (NEDO)
Position of Coal-Fired Power in the Future
According to IEA outlook, coal fired power generation will play one of the
major role in the future, especially in coal-rich countries.
TWh
Future power capacity by resources
2000 2016 2025 2040
Renewables
Nuclear
Oil
Gas
Coal
1 Source:World Energy Outlook 2017
Air Pollutants from power sector
2
According to IEA special report, air pollution is the fourth greatest overall risk factor for human health worldwide.
Power generation is a major source of worldwide SOx emissions (one-third of the global total) and NOx (14% of total NOx).
Coal fired power generation is the chief fuel responsible for air pollution in the power sector, accounting for three-quarters of the sector’s SO2 emissions, 70% of its NOX.
Source:World Energy Outlook 2016 / Special Report
Environmental Technologies
Japanese coal-fired power plants are superior in terms of
environmental friendly. Japan’s SOx and NOx emission level per
electric power is very lower than US and EU countries.
Japan can provide state of the art technology to minimize
environmental impact.
Source:OECD StatExtracts, IEA Energy Balances 2017, The Federation of Electric Power Companies of Japan 3
(g/kWh)
0.8
0.6
0.8
0.1
0.5
1.0
1.5
0.2
0.0
0.5
1.0
1.5
2.0
USA Germany France Japan
Sulfur Oxide(Sox)Nitrogen Oxide(Nox)
International Comparison of SOx and NOx emission level per electric power (2015)
The atmosphere situation of Kawasaki-city
(1960’s) (2015’s)
Air condition has been drastically improved in Japan because of our continuous efforts for R&D and introduction of more environmental friendly technologies.
Our technologies could be a resolution of air pollution in other countries.
4
5
Diagnostic Study for Environmental Measures
<Dadri Thermal Power Station, NTPC> 1820MW -Stage I: 210MWx4(COD 1991-1994) -Stage II: 490MWx2(COD 2010) Located in UP, supplying electricity to Delhi NCR
Site study period: 19-21 February 2018 Team composition: JCOAL, Kyuden International
<Summary of the interim proposal> In view of the relevant requirements and technical feasibility by considering
cost and space, a case with four units of FGD was determined as the highest priority.
<Progress of the Study> Interim reporting was completed at
the plant, NTPC as well as CEA immediately after the site study.
The outcome of the analytical work and the final proposal in the Final Report are to be provided.
BOILER
ESP
ESP
<<DRY
>>
WET
STACK
DRY
STACK
(FGD BYPASS
LINE)
IDF
<<WET>
> FGD
BUF
Dadri
Delhi
Utilization of Biomass / CFB Boiler Technology①
Technology CFB can utilize wide range fuels by following features :
A) Long combustion time by the circulating => Easy to burn unreactive fuels like Anthracite
B) Large heat Capacity in Furnace => Easy to burn High moisture fuels like Biomass
C) Controlled combustion temperature => Low and Controlled Emission (SOx and NOx)
Biomass
< 50 mm
Coal
<10 mm
Gas temp.
850 - 900oC
Gas velocity
around 5.0 m/s
Cyclone
Furnace
Combustion
air
Windbox
Limestone
<1 mm Wallseal
Long Burning Time
By Circulating
combustion
Fuel Flexibility
with large heat
capacity
fluidizing bed
Low emissions
DeSOx by limestone
Low NOx by Low
Temp.
6
Utilization of Biomass / CFB Boiler Technology②
CO2 Reduction Solution in Small Capacity Unit for Indonesia
Biomass co-firing technology with Coal realizes CO2 reduction for small to middle size sub-
critical power plants.
Energy security for varieties of coals including high moisture low rank coals, Waste to energy
for waste tire (TDF), plastic refused fuels etc. are used even in a boiler. This solution can be
suitable for Indonesia which is trying to commit drastic CO2 reduction and to develop middle
size project.
Fuel Combustion Test
SUMITOMO HEAVY INDUSTRIES, LTD (SHI)has developed Co-Combustion technology
and already delivers over 50 units of those kinds of fuels boilers since 2002 and has a high reliable operation
records in Japan and east Asia for the industrial facility and IPP use.
Realizing USC level or less CO2 emission
by Biomass and Coal Co-Combustion
Testing with actual fuels in Indonesia by
own pilot facility in Japan
Coal
Palm Karnel Shell
Gricidia (Plant)
Corn Cob Testing Facility
7
Utilization of Biomass / Gasification technology③
Source: IHI
Supply chain from low rank coal to fertilizer manufacturing Demonstration plant in Indonesia
Japan has developed an advanced gasification technology producing
fertilizer materials(ammonia and urea) from low rank coal and biomass by
NEDO Project.
Using lignite and biomass effectively could contribute to utilization of
agricultural residues and mitigation of air pollution in India.
8
Flame work and implementation process of
diagnosis under CEA-JCOAL cooperation
9
Japanese Experts of HELE and Environment
India Power Sector
JCOAL
METI NEDO
MOP
CEA MOU
Request by Utility
Preliminary survey
Diagnosis Data collection & analysis
Debriefing Report
Efficiency Improvement
Mitigation of
environmental impact
<Standard Procedure of Diagnosis>
Optimal proposal
5.Summary
Coal fired power generation will continue to play one of the major
roles in the future, but Environmental Technologies are required for
existing power plants for minimizing air pollution.
Japan has a lot of experience to use Environmental Technologies
(for NOx, SOx, and PM) for coal fired power plants, and also has
developed biomass co-firing technology and gasification
technology for utilizing biomass and lignite.
Our advanced Environmental Technologies including biomass
utilization technology could be a resolution to mitigate the air
pollution issues in India.
NEDO is making efforts to disseminate Environmental
Technologies to India power sector through diagnosis activities
under CEA-JCOAL cooperation.
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Thank you for your attention.