Washington, D.C. First Year Operation Results of CCP’s ... Net Gross Gas Turbine Gas Treatment Gasifier approx. 1,700 t/day (metric) 250 MW gross (16%O 2 basis) Flue Gas Properties

Copyright Clean Coal Power R&D Co., Ltd & Mitsubishi Heavy Industries, Ltd. 2008 1owerower

Yoshitaka IshibashiClean Coal Power R&D Co., Ltd.

Osamu ShinadaMitsubishi Heavy Industries, Ltd.

October 7, 2008ower

First Year OperationFirst Year Operation Results of Results of CCPCCP’’s Nakoso 250MW Airs Nakoso 250MW Air--blown blown

IGCC Demonstration PlantIGCC Demonstration Plant

Gasification Technologies Conference 2008Washington, D.C.


CRIEPI-MHI 2t/d(1983-1995)

MHI Nagasaki 24t/d (1998-2002)

CCP R&D Co.,Ltd.1700t/d 250MW (2007-2009)

Demonstration plant

IGC Research Association200t/d Equivalent to 25MW (1991-1996)

Pilot plant

Confirmation test plant

Process development unit

History of AirHistory of Air--Blown IGCC in JapanBlown IGCC in Japan

CRIEPI: Central Research Institute of Electric Power Industry


Sep. 2007

250MW 1,200˚C-

class

1,700 t/d

Air-blownDry-feed

MHI

NakosoJapan

2,500 t/d2,500 t/d2,600 t/d2,000 t/dCoal

consumption(metric t/d)

315 MW1,300˚C-

class

297 MW1,300˚C-

class

335 MW1,300˚C-

class

284 MW1,100˚C-

class

Gross output(GT)

Sep. 1996Oct. 1995Dec. 1997Jan. 1994Demonstration test start

O2-blownSlurry-feed

GE

O2-blownSlurry-feed

E-GasTM

O2-blownDry-feedPlenflo

O2-blownDry-feed

ShellGasifier type

TampaUSA

WabashRiverUSA

PuertollanoSpain

BuggenumNetherland

ProjectsSite

Coal IGCC ProjectsCoal IGCC Projects


Thermal Efficiency Improvement for COThermal Efficiency Improvement for CO22 ReductionReduction

Thermal Efficiency in JapanThermal Efficiency in Japan

(2700˚F)

(2400˚F)

(2200˚F)


CCPCCP

Joint project agreement

Personnel

30% subsidy

70% contribution

Mitsubishi Heavy Industries, Ltd.

Mitsubishi Heavy Industries, Ltd.

EPC Contract(Single Point)

Hokkaido EPCo.Tohoku EPCo.Tokyo EPCo.Chubu EPCo.Hokuriku EPCo.Kansai EPCo.Chugoku EPCo.Shikoku EPCo.Kyushu EPCo.J-POWERCRIEPI

Hokkaido EPCo.Tohoku EPCo.Tokyo EPCo.Chubu EPCo.Hokuriku EPCo.Kansai EPCo.Chugoku EPCo.Shikoku EPCo.Kyushu EPCo.J-POWERCRIEPI

Joban Joint Power Co.,Ltd.Joban Joint

Power Co.,Ltd.Operator, etc.

METI：Ministry of Economy, Trade and Industry

Project SchemeProject Scheme

METIMETI


IWAKI City

Entire View ofEntire View of the the NAKOSO Power StationNAKOSO Power Stationof of JOBAN JOINT POWER CO., LTD.JOBAN JOINT POWER CO., LTD.

TOKYO

IWAKI CityNAKOSO

Fukushima Prefecture

Location of IGCC Demonstration PlantLocation of IGCC Demonstration Plant


Demo PlantOperation

Construction ofDemo Plant

EnvironmentalImpact

Assessment

Design ofDemo Plant

PreparatoryVerification Test

'09'08'07'06'05'04'03'02'01'00'99FY

CCP established

Demonstration Project ScheduleDemonstration Project Schedule

The construction work finished in September 2007, and demonstration operation is executed now.


Schematic Diagram of IGCCSchematic Diagram of IGCC

BoosterCompressor

M

G

Gas C/UGas C/U

HRSGHRSG

O2N2

GypsumGypsumrecoveryrecovery

(For coal and char transport N2)

ASUASU

Air

GasifierHigh Temp.

FilterGas Turbine Steam Turbine

Combustor Air

GasifierStack

Char

Coal


Specification of IGCC Demonstration PlantSpecification of IGCC Demonstration Plant

(metric)

0.006 lb/MMBTU (LHV) ( 4 mg/m3N)

0.03 lb/MMBTU (LHV) ( 5 ppm)

0.06 lb/MMBTU (LHV) ( 8 ppm)

42%(LHV) 40.5%(HHV)48%(LHV) 46%(HHV)

1,200 ○C -class (2,200 ○F)(50Hz)

Wet (MDEA) + Gypsum Recovery

Air-brown & Dry Feed

Dust Loading

NOx

SOx

NetGross

Gas Turbine

Gas Treatment

Gasifier

approx. 1,700 t/day (metric)

250 MW gross

(16%O2 basis)

Flue GasProperties

(Target Value)

Efficiency(Target Value)

System

CoalConsumption

Capacity


Nagasaki Shipyard & Machinery Works of MHINagasaki Shipyard & Machinery Works of MHI

Manufacture of Manufacture of GasifierGasifier Pressure VesselPressure Vessel


Transportation of Transportation of GasifierGasifier Pressure VesselPressure Vessel


Assembling of Assembling of GasifierGasifier Pressure VesselPressure Vessel


Assembling of SGC Pressure VesselAssembling of SGC Pressure Vessel


COS Converter

Gas Scrubber

Gas Quencher

H2S Absorber

Installation of Gas CleanInstallation of Gas Clean--up Facilityup Facility


Takasago Machinery Works of MHI (M701DA)Takasago Machinery Works of MHI (M701DA)

Manufacture of Gas TurbineManufacture of Gas Turbine


HRSG

Gas Turbine, Steam Turbine & Generator

Gasifier

Gas Clean-up

View of IGCC Demonstration PlantView of IGCC Demonstration Plant


0

500

1000

1500

2000

2500

3000

RUN1 RUN2 RUN3 RUN4 RUN5 RUN6 RUN7 RUN8 RUN9

Long Term Continuous Operation TestJun 10 - Sep 17RUN 9Validity Test after Long Term InspectionMay 26 - Jun 2RUN 8Load Swing Test, Initial Plant Performance TestMar 28 - Apr 7RUN 7Syngas Power Generation at 100%Load, Load Rejection TestMar 03 - 07RUN 6Syngas Power Generation at 75%Load, Load Rejection Test2008 Jan 9 - 11RUN 5Syngas Power Generation at 50%Load, Load Rejection TestDec 18 - 21RUN 4First Syngas to Gas TurbineDec 05 - 07RUN 3Gasifier Initial AdjustmentNov 29 - 30RUN 2First Syngas Production2007 Oct 10RUN 1

Syng

as P

ower

Gen

erat

ion

Hou

rs

2590hr

2039hr

Records of OperationRecords of Operation

Hours of Power Generation on SyngasCumulative Hours


1,250˚C (2300˚F)Ash Analysis

Fluidization Temp.

29.3 MJ/kg (12,600Btu/lb)27.8 MJ/kg (12,000Btu/lb)

Heating Value (Dry Base)HHVLHV

56.2%34.3%

1.69.5%0.3%

Proximate Analysis (Dry Base)Fixed CarbonVolatile MatterFuel RatioAshTotal Sulfur

Chinese CoalChinese Coal

Properties of Coal UsedProperties of Coal Used


Example of Plant PerformanceExample of Plant Performance

0.01lb/MMBTU (1.0 ppm)0.02lb/MMBTU (3.4 ppm)

< 0.0001lb/MMBTU (< 0.1mg/m3N)

Environmental Performance(16% O2 Corrected) SOX

NOXParticulate

30.5 %2.8 %

10.5 %0.7 %

55.5 %

Syngas Composition COCO2H2CH4

N2 & Others

75.3 %> 99.9 %

5.2 MJ/m3N (132 BTU/SCF)

Cold Gas Efficiency of GasifierCarbon Conversion EfficiencySyngas LHV

13.1˚C (55.6 ˚F)250.0 MW124.2 MW125.8 MW

42.4 % (LHV)

Atmospheric TemperatureGross OutputGas Turbine OutputSteam Turbine OutputNet Efficiency


Trend Data of Long Term Reliability TestTrend Data of Long Term Reliability Test

0

1 0 0

2 0 0

3 0 0

4 0 0

Outp

ut

[MW

]

0

1 0

2 0

3 0

4 0

Atm

osp

heric t

em

pera

ture

[℃

]

O p e r a t in g d a y s

0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 5 5

Capability of stable power generation was confirmed.

※ The GT output has decreased slightly by increase of atmospheric temperature.

0

Gross outputGT outputST outputAtmospheric temperatureProduct gas LHV

0 5 10 15 20 25 30 35 40 45 50 55Operating days

400

300

200

100

0

Out

put [

MW

]

40

30

20

10

0

Tem

pera

ture

[˚C

], LH

V [M

J/m

3 N]


(As of September 17, 2008)(As of September 17, 2008)

2,660 hrsGasifier Operation

185,000 ton(metric)

Cumulativecoal consumption

FuelConsumption

590 GWhCumulativegross output

PowerGeneration

2,590 hrsGT Operationby SyngasOperating

Time

Operating ResultsOperating Results


Slag Hole View from Lower Side

Gasifier SGC

Molten Slag ObservationMolten Slag Observation


SGC

Molten Slag ObservationMolten Slag Observation

Gasifier

Surface of the Water in Slag Hopper


Ground Flare

Syngas Combustion in Ground Flare

SyngasSyngas Combustion in Ground FlareCombustion in Ground Flare


• Adjustment of the plant operating parameters to increase the net plant efficiency furthermore and load changing rate from this December.

• US PRB coal and Indonesian coal are planned to be used from early next year.

• 5,000 hr durability test is also planned from May to December next year.

Future PlanFuture Plan

Documents

Washington, D.C. First Year Operation Results of CCP’s ... Net Gross Gas Turbine Gas Treatment Gasifier approx. 1,700 t/day (metric) 250 MW gross (16%O 2 basis) Flue Gas Properties