3.7 USC Steam Turbine Experience (2 Flow) · PDF fileTandem Compound Type 600~800 MW Class...

3.7 USC Steam Turbine Experience (2 Flow)

Owner: Electric Power Development Co.Power Station: Isogo Unit No.2Rated Output: 600 MWTurbine Type: TCDFRevolution: 3 000 rpmRevolution: 3,000 rpmMain Steam Press.: 25.0 MPa.aMain & Reheat Steam Temp.: 600 / 620°C

Initial Operation: 2009.7Date of Photography: 2009

17 Copyright © 2012, Hitachi, Ltd., All rights reserved. 17

3.8 Design Features of 400-600MW Steam Turbine

1-LP Casing (2 Flow)with various size of last stage blade Advanced Vortex Nozzle to

improve the stage efficiencyimprove the stage efficiency

HP/IP Combined Casing

Continuous Covered Blade to improve the seal performance


Tandem Compound Type 400 ～ 600 MW Class Steam Turbine

3.9 USC Steam Turbine Experience (4 Flow)

O GDF SUEZ E i N d l d N VOwner: GDF SUEZ Energie Nederland N.V.Power Station: RotterdamRated Output: 790.1 MWTurbine Type: TC4FRevolution: 3,000 rpmM i St P 26 3 MPMain Steam Press.: 26.3 MPaMain & Reheat Steam Temp.: 600 / 620CInitial Operation: 2013Date of Photography: February 2012


3.10 3.10 Design Features of 600-800MW Steam Turbine

2-LP Casings (4 Flow) with various size of last stage blade

Continuous Cover Blade to improve the seal performance

HP/IP Combined Casingg

Advanced Vortex Nozzle to

Tandem Compound Type 600 800 MW Class Steam Turbine

improve the stage efficiency


Tandem Compound Type 600~800 MW Class Steam Turbine

3.11 Supercritical Coal Fired Power Plant (EPC)

First sliding pressure supercritical power plant in CanadaAwarded best coal-fired project at Power-Gen International 2005

<Leading Specification><Leading Specification>

Owner: EPCOROwner: EPCOROwner: EPCOROwner: EPCOR

Site: Genesee Site: Genesee Phase3Phase3

Type: SupercriticalType: SupercriticalType: Supercritical Type: Supercritical

Fuel: SubFuel: Sub--bituminous Coalbituminous Coal

Output: 450MW (NET)Output: 450MW (NET)Output: 450MW (NET)Output: 450MW (NET)

Steam ConditionSteam Condition：：

24.1MPa / 56624.1MPa / 566℃℃ / 566/ 566℃℃

Commercial Operation: Commercial Operation:

20052005



Awarded 2007 Plant of the Year by Power Magazine(1)First US supercritical plants in 16 years(2)High efficiency and low emission(3)On time delivery and start-up

<Leading Specification><Leading Specification>

Owner: MidOwner: Mid--American EnergyAmerican Energy

Site: Walter Scott Jr. Energy Center 4Site: Walter Scott Jr. Energy Center 4

Type: Supercritical Type: Supercritical

Fuel: SubFuel: Sub--bituminous Coal (PRB)bituminous Coal (PRB)

Output: 790MW (NET)Output: 790MW (NET)


25.3MPa / 56625.3MPa / 566℃℃ / 593/ 593℃℃

C i l O ti 2007C i l O ti 2007


Commercial Operation: 2007Commercial Operation: 2007


<<Leading Specification>Leading Specification>

OwnerOwner: : EvonikEvonik/EVN/EVN

SitSit W l U it 10 (G )W l U it 10 (G ) Site: Site: Walsum Unit 10 (Germany)Walsum Unit 10 (Germany)

Type: Type: Ultra Supercritical Ultra Supercritical

Fuel: Fuel: Hard CoalHard Coal

Output: 790MW Output: 790MW (Gross)(Gross)


26.4MPa 26.4MPa / / 600600℃℃ / / 620620℃℃

Turbine: HitachiTurbine: Hitachi

Boiler HPEBoiler HPE Boiler: HPEBoiler: HPE


4. IGCC & CCS Technologies


4.1 IGCC(EAGLE Pilot Plant in Japan)

GasifierO2-blown entrained flow gasifier

(2-stage spiral flow type)Coal Feed Rate １５０ｔ/day

Gasification Pressure ２．５ MPa

Gasifier andChar Recycle

Syngas Volume 14,800m3N/h

Gas Clean-up Absorption with MDEASulfur Recovery Limestone-gypsum

CO2 Capture Unit Capacity 1,000m3N/h

Unit

Air Separation

2 N

GT Output 8,000kW

Gas Clean-up

Unit

Gas Clean up Unit

Gas TurbineSulfur RecoverySulfur Recovery Unit

CO2 Capture Unit(Sweet shift + Chemical


absorption)

4.2 FeaturesFeatures of EAGLE* Gasifier

EAGLE ifi i bl t t i l fl t t i d b d ifi EAGLE gasifier is oxygen blown two stage spiral flow type entrained bed gasifier. Two stage spiral flow enables high efficiency for various type of coal.

Two stage concept enables optimum O2/coal ratio operation. Two stage concept enables optimum O2/coal ratio operation. Increasing residence time by spiral down flow, particle scattering is prevented. Oxygen feed flow quantity of upper burners of the gasifier is selected as little as possible in the range that does not let carbon losses increase.

Prevention of particle scattering by Spiral

down flow

Syngas (CO, H2)

Seal GasBlow Gas

down flow

CoalOxygen

Upper Stage BurnerLow

O Ratio

Ash Melting Temp.

High efficiency gasification with less

Oxygen

Oxygen

CoalLower Stage Burner

High

O2 Ratio

Optimized O ratio for

CoalOxygen

Temp.

gO2 Ratio


Optimized O2 ratio for various coalsSlag

*Coal Energy Application for Gas,Liquid & Electricity

4.3 Development of IGCC with CO2 Capture

EAGLE

Year ’05 ’10 ’15 ’20 ’25’00

Operation

Design, Manufacturing,Installation

EAGLE

Step2

Operation

・Reliability Improvement・1000m3

N/h CO２ Capture Pilot Plant/Sweet Shift + Chemical AbsorptionOperation

Design, Manufacturing,Installation

Step2

EAGLE

Step3

Feasibility Study, Design, Manufacturing, Installation ・1000m3

N/h CO２ Capture Pilot Plant/Sour Shift + Physical Absorption

Demonstration Operation of

Design, Manufacturing, Installation

Osaki Cool

Gen Project

(Demonstration)DemonstrationOperation of IGCC

CO2 Capture UnitDesign, Manufacturing, Installation

Operation of Oxygen blown IGCC

(Demonstration)

Supported byMETI

Operation of IGCCwith CO2 Capture

Installation

FC Unit Design, Manufacturing, Installation


DemonstrationOperation of IGCC/IGFCwith CO2 Capture

METI：Ministry of Economy, Trade and Industry

4.4 Process Flow of OSAKI Cool Gen Project

IGCC IGCC : 170MW class (Coal feed rate:1,100t/d)Gasifier :Oxygen-Blown Entrained-flow

AirFuel Gas(H2,CO etc.)

AirStack

GT

Gas Turbine : Demo Class

O2ガス化

Air SeparationUnit

ST GT

GeneratorCoal

HRSGGasifier

化 Generator

H2

CO HCO2 Capture

ＦＣ

CO Shift CO2Capture

CO2,H2 CO2Transport

and Storage

Shift Reaction : Shift catalyst is under consideration.

CO Capture Unit: CaptureＩＧＣＣ/ＩＧＦＣwith

ＦＣ


Reactor CaptureUnitCO2 Capture Unit: Capture

process is under consideration.CO2 Capture

4.4 CCS(Chemical Absorption Process)

ESPESPBoilerBoiler

SCRSCR FGDFGD

STACKSTACK

Absorb CO2 in Flue Gas by Amine, CO2 Release by Heat

CO2

Storage

Flue Gas

Treated Gas■Principle

and Storage

Absorption40～50℃

Storagep

R NH2+CO2+H2O R NH3++HCO3-→

Heated，Regenerate100～120℃

RegeneratorAbsorberR-NH2+CO2+H2O R-NH3++HCO3-→←

Amine

100 120℃

Ab b t

■Process1） CO2 i fl b b d b A i

R: Alkyl

Chemical Absorption Process

Heat ExchangerReboilerAbsorbent1） CO2 in flue gas absorbed by Amine

2） Regenerate CO2 in regenerator by heat3） Amine re-circulate to absorber


）

4.5 Development Road Map

2006 2008 201420122010 20161995

Absorption Basic Bench Test

B h T t

Scale-Up Technology/Improve EfficiencyScale-Up Technology/Improve Efficiency

Bench Test

1MWt Pilot

CO2 Capture for 1000MWel

System 1MWt Pilot FS 5MWt pilot (HPE)5MWt pilot (HPE)

TEPCO/ Yokosuka

System20MWt pilot20MWt pilot

5MWt pilot


4.6 CO2 Scubber Testing Plant (Gelderland/Netherlands)

• up to 5000 Nm3/h flue gas, equals to 5 MWth• CO2 removal > 90 %, Purity of CO2: 95%2 , y 2• Removal capacity up to 1 ton CO2 / hour• Two trains arrangement• Ready for operation by end of 2011y p y


4.7 Example of CO2 Capture for 1000MWel

3 000 000m3 /hG1,000MWUnitItem

3 000 000m3 /hFlue GasValueValueUnitItem

Recovery6,300m3 /ｈL90％CO2 Rec.

3,000,000m /hG

300t/hCoal90%CO2 Rec.

3,000,000m /hFlue Gas

Inlet Flue Gas

CO2

Regenerator

AmineTank

200mAbsorber100m

Absorber



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