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.