IEEJ：December 2015, All Rights Reserved.

Achievements and Future Activities inOperation of Clean Coal Technology

Tokyo Electric Power Company – Fuel & Power Company
November, 20th, 2015

© 2015 Tokyo Electric Power Company, Inc All Rights Reserved

IEEJ：December 2015, All Rights Reserved.

Outline1. Thermal Power Plants of TEPCO
2. User’s expertise and experienced O&M know-how
3. IGCC Technology

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TEPCO is Japan’s largest utility, supplying power to theTokyo metropolitan area for over 60 yearsIGCC3

Coal-fired USC1

HironoCoal-fired USC1
Hitachinaka
KashimaMore Advanced
CombinedCycle (CCGT2)

Gas-fired Plants

ShinagawaOhi
KawasakiHigashiohgishima
Yokohama
Minami-yokohama
Yokosuka

Chiba
Goi
Anegasaki
Sodegaura
FuttsuMore Advanced

Oil-fired Plants
Coal-fired Plants
1 USC; Ultra Super Critiical
2 CCGT; Combined cycle gas turbine
3 IGCC; Integrated coal Gasification Combined Cycle

Combined
Cycle (CCGT2)

Conventional plant
CCGT2 Plant

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TEPCO runs power plants of various fleet types
with large capacity (Domestic)
Fleet

Units1

Total
capacity1
MW

Coal

4(6)

3,200(5,025)

1500℃

105,021

1300℃

26(3)

9,600(753)

CCGT

14

2,000

23

12,761

19

10,750IGCC(1)

(250)

Total

96(10)

43,332(6,028)1100℃
Gas(Conventional)

Oil(Conventional)
Hitachinaka Power Plant
Coal-fired (Hard coal)

1 Values in brackets include joint operation plants© 2015 Tokyo Electric Power Company, Inc All Rights ReservedOEM▪ MHPS
▪ MHI
▪ Hitachi▪ Toshiba▪ GE▪ IHI
▪ MELCO▪ FujiAnnualOutput~211.6 TWh3

IEEJ：December 2015, All Rights Reserved.

TEPCO runs power plants of various fleet types
with large capacity (Global)
Investment in power plant SPC
Fleet Plant nameGas

Coal

The Philippines

IrijanTaiwan

1,251

50.0

Star Buck

490

22.7

UAE

Umm Al Nar

2,200

20.0

Vietnam

Phu My 2-2

715

15.6

TaiwanFong Der

980

19.5

TaiwanChang Bin

490

19.5

The Philippines

Sual

1,218

50.0

The Philippines

Pagbilao

735

50.0

Indonesia

Paiton III815

14.0

Indonesia

Paiton I1,230

14.0Total
Power generation corporation
investment

OwnerTotal
capacity ship ratio
Percent
MWThailand© 2015 Tokyo Electric Power Company, Inc All Rights Reserved

10,124
5,150

12.3
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IEEJ：December 2015, All Rights Reserved.

Outline1. Thermal Power Plants of TEPCO
2. User’s expertise and experienced O&M know-how
3. IGCC Technology

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User’s expertise and experienced O&M know-how lead TEPCO
for the Low Carbon Society
The Best Available Technology

CCGT / USC

Experienced O&M method

Operation and Maintenance– Plant monitoring– Early detection– Plant diagnosis– Efficiency management
Next-Generation Technology

IGCC / A-USC

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TEPCO has been maximizing power plant performance withthe best available and cutting-edge CCGT technologies … One of the world’s
Highestthermalefficiency;%

highest thermal
efficiency

47.2 54.1 58.6 60+

39.4

TEPCO
thermalpower
capacity2
GW1,600℃ classexpectedinstallation
1,500℃ classinstallation

CCGTConv.
Gas

1,300℃ classinstallation
1,100℃ classinstallation1CoalOil1955
1 GT inlet gas temperature
2 Includes joint operation plants

6575851986

9520051998

2007© 2015 Tokyo Electric Power Company, Inc All Rights Reserved2015
2016
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IEEJ：December 2015, All Rights Reserved.

TEPCO has been adopting the best available technologies
also as to conventional plant.
1,000MW

1,000

Plant Capacity(MW) 800

Conventional
Capacity

600
400
200

CCGT

600

500MW
350 360

350
265
175

165MW

125MW

(%)
Efficiency ( Gross, LHV )380

58.6 %60+%

CCGT
Efficiency
45 %Coal-fired
USC

Conventional(year)
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Appropriate types of flue gas treatment system areinstalled from following options to coal-fired power plant
NO2TypeDry

Wet

SO2Method

Selective Catalytic
Reduction (SCR)
Selective Non-Catalytic
Reduction (SNCR)
Activated Carbon
Injection (ACI)Oxidation-Reduction

TypeMethod

Dry

Dry Sorbent Injection：(DSI)

Semi-Dry

Spray Dryer：
Wet Scrubber

PM (Particulate Matter)

WetMethod

ScrubberFabric Filter (FF)Electrostatic Precipitator (EP)：DryWetSorbent

Limestone orLime - Gypsum
Mg(OH)2
NaOH
Sea Water：
TEPCO adopted

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TEPCO build trust in environment by introducing
environmental friendly equipment with accumulated know-how

TEPCO has developed andmaintained coal power plants

Example: Strong commitment
to environmental compliance

TEPCO’s coal plant1
MW▪ Set strict environmental standards
with the municipality.1/6 level oflegal regulation▪ Promote local area benefits fromplant construction and operation▪ Proactive communication with local
government▪ Real-time transfer of environmental
data to the municipality▪ Keep regular touch points with themunicipality and surrounding cities
1990
1 incl. joint operation plants

2000

2010

15

▪ Provide detailed data sets andhold public hearings© 2015 Tokyo Electric Power Company, Inc All Rights Reserved

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IEEJ：December 2015, All Rights Reserved.

TEPCO has built strong connection with every stakeholder forlong terms in any phases
Before environmental
impacts assessment

Environmental
impacts assessment

Under construction
and after COD▪ Consensus and ▪ Strict steps of ▪ Real timecommunicationbuilding with andlocals▪ Repetitive
information
sessions of a
project for locals▪ Other contact

environmental reporting ofimpacts
environmental
assessment
data to the– Through 50
municipality
months, 4major steps ▪ Keep regularof assessment touch points
beforeconstruction

points© 2015 Tokyo Electric Power Company, Inc All Rights Reserved

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IEEJ：December 2015, All Rights Reserved.

Outline1. Thermal Power Plants of TEPCO
2. User’s expertise and experienced O&M know-how
3. IGCC Technology

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Conventional and Combined Cycle power plant
Conventional

Combined cycle(IGCC)

Boiler＋Steam turbine

Boiler＋Steam Turbine＋Gas Turbine

Boilerexhaustgas

Coal

SteamGTurbine

Generator

Heat Recovery
Steam Generator

Syngas

GasTurbine

Coalflue gas

G
Gasifier

Generator

SteamTurbine

GGenerator

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Integrated coal Gasification Combined Cycle (IGCC)
CoalGas Clean-up
Gasifier
FilterGT combustor
Gas Turbine

AirSteam turbine
GCharSlag1HRSG

AirStackM
N2O2
Air Separate UnitGasifier

Boost-up Compressor(feed of coal and char with nitrogen)
1 HRSG;Heat Recovery Steam Generator

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Advantages of IGCC (1/3)

Net plant Efficiency (%LHV)

Efficiency improvement with increase in gas turbine
1 temperature
IGCC (48～50%) by 1500℃ class GT

IGCC(48%)by
IGCC(48～50%)1400℃
by 1500class℃級GTGT5045
IGCC(45～46%)℃級GT
IGCC (45～46%)byby1300
1300℃class GT40IGCC
Demo plant (42%)
1200℃class GT
IGCC実証機(42%)
by by
1200℃級GT

新鋭微粉炭火力(41～43%)
Newest conventional coal-fired plants (41～43%)
旧世代微粉炭火力(40～41%)
Older conventional coal-fired plants (40～41%)

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Advantages of IGCC (2/3)

Expansion of the available coal class2 （use of low ash melting point coal）
Billion tons
12001000＜Coal Supply potential＞
High ash melting point coalforconventional plants
高灰融点炭：微粉炭火力向き

8006004002000North
America

China

India

Australia

S. Africa

Indonesia

Low ash melting point coal for ＩＧＣＣ
Coal for conventional plant
Coal for IGCC
Newly available
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IEEJ：December 2015, All Rights Reserved.

Advantages of IGCC (3/3)

Reduction of the coal ash throughput
3 （Approximately 50% reduction）

Coal ash（conventionalcoal-fired plants）

Glassyslag（ＩＧＣＣ）

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TEPCO is the originated developer and leading company that has
been operating Air-blown IGCC.

Thermal efficiency comparison between
Air-blown IGCC and Oxygen IGCC

Thermal Efficiency

Oxygen-blown IGCC haslarge auxiliarypower

Air-blown IGCC has
small auxiliary
power
Gross plant
efficiency

auxiliarypower

Net plant
efficiency

Oxygen-blown

Air-blown

IGCC

IGCC

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IEEJ：December 2015, All Rights Reserved.

TEPCO’s IGCC Technology – History and Experience
1983-1995
Process
Development
unit
2t/day ofcoal consumption

2007-2013
Demo Plant※※Commerciali
zation fromApril, 2013
1700t/day,250MW

100 times

1991-1996Pilot Plant
200t/day(Equivalent to25MW)

8.5 times

2 times

2020IGCC
CommercialPlant (Hirono,Nakoso)
3700t/day,540MW© 2015 Tokyo Electric Power Company, Inc All Rights Reserved▪ Diversificationfor energysecurity▪ Reduction ofgreenhousegas emissions

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IEEJ：December 2015, All Rights Reserved.

Bird’s-eye view of Nakoso IGCC demonstration plant
GasifierHRSG

Gas Clean-up
Gas turbine,
Steam turbine,
Generator

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About 4,000h’s continuous running time has been achievedin testWorld record of IGCC Plant continuous operation : 3,917h

SOURCE: Joban Joint Power Co., Ltd.

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Results of demonstration performance test in Nakoso
Design Values

Results

250 MW
128.9 MW121.1 MW15 degC
42 %250.0 MW124.4 MW125.8 MW13.1 degC
42.9 % 1

LHV
CO
CO2
H2
CH4
N2etc.

4.8 MJ/m3N
28.0 %
3.8 %
10.4 %
0.3 %
57.5 %

5.2 MJ/m3N
30.5 %
2.8 %
10.5 %
0.7 %55.5%

SOxNOxParticulate<Target >
8 ppm
5 ppm
4 mg/m3N

1.0 ppm
3.4 ppm<0.1 mg/m3N

Gross Output
Gas Turbine Output
Steam Turbine Output
Atmospheric Temperature
Net Efficiency (LHV)
SyngasComposition

Environmental
Performance(16%O2 Corrected)

1 Correction value at 15 ºC
SOURCE: Joban Joint Power Co., Ltd.

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Summary of IGCC Commercial Plant in Hirono and Nakoso

Principal specification

Project schedule

OutputGasifier

EIA (Environmental Impact Assessment)
May, 2014Operation Start(Scheduled)
July, 2020

540MW
Air-blown&Dry Feed
Plant Efficiency 48%(LHV)

Fukushima Pref.

540MWAll Rights Reserved. Copyright © 2015. Tokyo Electric Power Company, Inc23IEEJ：December 2015, All Rights Reserved.

We believe that our clean coal plants
operational achievements contribute tohigh-quality infrastructure in Asia.

Legal Notice:This documentation includes technical knowledge and secret
information that belong to our company and our licensors.
Therefore, it shall neither be disclosed to any third parties, be copied,nor be used for any purpose other than that accorded by our company.
TOKYO ELECTRIC POWER COMPANY, INC.

Contract : report@tky.ieej.or.jp
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