Electricity from hydrogen - Amiando

Electricity from hydrogenElectricity from hydrogenwith combined cycles - The Fusina Project

BETTER-PRACTICE-EXCHANGE 2011 Stefano Sigali

Potsdam (D), May 30, 2011 Enel Engineering and Innovation

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Content

• Enel Group

• Carbon capture and storage technologies

• The Fusina Hydrogen Project

• The hydrogen power plant

• The combustion system development

May 30, 2011 Electricity from hydrogen with combined cycles - The Fusina Project 2

• The combustion system development

• Conclusions

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Enel group Enel is Italy's largest power company, and Europe's second

listed utility by installed capacity. It is an integrated player whichproduces, distributes and sells

electricity and gas in 40 countries.

May 30, 2011 Electricity from hydrogen with combined cycles - The Fusina Project

• 95 GW of installed capacity (34 GW da from renewables)

• 61 million customers

• 83,300 employees

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• Renewable energies

• Towards “zero

emission” power

Enel groupMain research areas


emission” power

generation

• Distributed generation

and energy efficiency

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Renewable Energies

Enel groupExample of research projects

Diamante

An integrated system with energy production and

hydrogen storage

Archimede solar plant

High temperature thermodynamic solar technology with molten salts


hydrogen storage

Catania PV laboratories

High concentration photovoltaic technologies

field testing

Molinetto

Field test of small scale wind turbine generators

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Towards “zero emission” power generation

Enel groupExample of research projects

STRIPPERS

STORAGE

REBOILER

COAL UNIT

STRIPPERS

STORAGE

REBOILER

COAL UNIT

Porto Tolle post-combustion demo plant

Retrofit one 660 MWe coal fired unit of Porto Tolle power station with CO2 capture equipment

CO2 underground storage

CO2 injection to be started in 2015


150 km

200 km

1

2

100 km

Centrale termoelettrica di Porto Tolle

150 km

200 km

1

2

100 km

1

2

Porto TollePower plant

150 km

200 km

1

2

1

2

100 km

Centrale termoelettrica di Porto Tolle

150 km

200 km

1

2

100 km

1

2

Porto TollePower plant

ABSORBERFGDSTORAGE TANKSABSORBERFGDSTORAGE TANKS

Fusinahydrogen-fuelled combined cycle

16 MWefrom hydrogen

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Carbon capture and storage technologiesThe vision: a power plant without chimney

Human-related CO2 emissions are considered to be one of the main responsible for greenhouse effect.


Development and application of CCStechnology is mandatory to prevent the introduction of green house gases in the atmosphere.

CCS: Carbon Capture and Storage

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Post-combustion capture

Options Capture systems

1

2

Compression & storage

CO2

Enel CCS1Enel CCS1

Strategies for carbon capture

Carbon capture and storage technologies


Pre-combustion capture

Oxy-

combustion

2

3

CO2 cleaning & compression

Transport & Storage

CO2

CO2

Enel CCS3Enel CCS3

Enel CCS2Enel CCS2

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Electricity and

Hydrogen are clean

energy carriers!

The role of hydrogen as a clean energy carrier

Carbon capture and storage technologies

Hydrogen

Production from fossils fuels

(medium term)

Production from renewable sources

(long term)

Storage


ElectricityBuildings Industr. usesTransports

(long term)

Large scaleDistributed

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The Fusina Hydrogen Project

IGCC + CCS

OXYGENFUEL

GAS

CLEANUP

PARTICULATE

REMOVAL

SHIFT

REACTOR

HYDROGEN

SEPARATION

CARBON DIOXIDE

STORAGE

GASIFIERASU

COMMPRESSED AIR

COMBUSTOR

BY-PRODUCT BY-PRODUCT

SYNGAS

H2STEAM

H2 + CO2

CO2

H2O

Pre-Combustion Technology for CCS

CO2 Storage

Hydrogen Fuelled Combined

N


COMBUSTOR

AIRBY-PRODUCT

HEAT RECOVERY

STEAM GENERATOR

STACK

G

G

Fuel gasification and hydrogen separation

Combined Cycle

N2

In the field of pre-combustion capture, Enel is focusing its attention on developing and proving, at industrial scale, the

power generation from hydrogen

Research field of the Fusina Project

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• To develop and demonstrate low-NOx, hydrogen fired, gas

turbine combustors (target: NOx < 100 mg/Nm3 by 2013).

• To investigate the effect of hydrogen combustion on hot gas

path materials (specifically focusing on combustor components

and turbine blades).

• To increase knowledge and evaluate availability and

performances of hydrogen fired gas turbines.

The Fusina Hydrogen ProjectObjectives


performances of hydrogen fired gas turbines.

• To improve know-how on all aspects concerning hydrogen as a

possible energy carrier in the future (i.e. safe storage,

handling).

• To evaluate the middle term opportunity to produce hydrogen

from coal for power generation through IGCC technology with

carbon capture and storage.

Construction of a demonstrative combined cycle,

equipped with a medium-size hydrogen-fed gas

turbine and a condensing HRSG

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The Fusina Hydrogen Project

Chemical plants

The Fusina site

VenicePetrochemical

Plants

Hydrogenpiping


Enel Fusina coal power plant2 x 320 MWe, 2 x 160 MWe

The opportunities of the Fusina site:

• Hydrogen availability as a by-product of petrochemical plants.

• Strong interest in environmental problems.

• Technology center for hydrogen.

• Presence of Hydrogen Park, a consortium aimed to the promotion of the

development and application of hydrogen technologies in the transport and

stationary generation sectors.

FusinaPower Plant

Hydrogen fuelled GT

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Unit 4

Net electric power in H2 gas turbine: 11.44 MWe

Net thermal efficiency of the H2 gas turbine (ISO): 31.1 %

Net electric power in combined cycle: 15.81 MWe

Net thermal efficiency in combined cycle: 41.6 %

HHHH2222

Comp. GasTurb. Gen.

Air 15°°°°CSteam Steam

The Fusina Hydrogen ProjectCombined Cycle performances


Unit 4(320 MWe coal plant)

Exhaust

(mostly N2 andO2)

Steam

340°°°°C 31bar

H2O 33°°°°C

H2O

H2O 53°°°°C

Condensate recovery

41 °°°°C

Steam

41 °°°°C

H2O 140°°°°C

ηnet: 39,5% 40,1%Coal consumption: -1.43 t/h

CO2 Emissions: -3,4 t/h

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The hydrogen power plantPlant view

Dry flue gas chimney

By-pass chimney

Diverter

GE10

Innovations

• First combined cycle worldwide designed to

operate with pure

hydrogen.

• First low-NOx combustor for hydrogen

(400 mg/Nm3


Control room

Heat recoverysteam generator

Pipe rack

GE10 gas turbine

Transformer

(400 mg/Nm3

in experimental phase,

100 mg/Nm3 in

commercial operations).

• Condensing HRSG for the maximum energy

recovery.

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The hydrogen power plantHydrogen pipeline

Underground passage

Channel crossing


Pipe rack Special attention was paid to safety aspects:

• Studies on pipeline material have been carried out in order to

exclude the risk of hydrogen embrittlement;

• The pipeline is divided in sections using emergency stops valves

in order to allow the minimal dispersion of the gas in case of

accident;

• A nitrogen feeding systems can be used for displacing the

hydrogen for safety reasons.

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Gas Turbine

The hydrogen power plant

GE10

Nominal Rating (GN) - ISO

Electrical Output (kW) ...... 11250

Electrical Efficiency (%) .... 31.4

Hydrogen consumption .... 12.000 Nm3/h


The gas turbine was supplied by General Electric – Nuovo Pignone.

The hydrogen fuelled combustor has been specifically developed for the Fusina plant with support of Enel.

Combustor configuration is suitable for research activities (silos-type single-can combustion chamber, diffusive flame, steam injection for NOx abatement).

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The combustion system developmentPlanned upgrades of the power plant

2007DESIGN

2009START-UP

2010-2012PLANT OPERATION

WITH “BASE” CONFIG.

PLANT DESIGN, CONSTRUCTION AND OPERATION

COMBUSTORDEVELOPMENT

2008CONSTRUCTION

2013PLANT OPERATION WITH“INNOVATIVE” CONFIG.

2007-2008 2008-2009 2011-2013


Completed

Nuovo Pignone with support of Enel for full scale test

Completed

In cooperationwith Nuovo Pignone

and research departments

2007-2008DESIGN AND TEST OF“BASE” CONFIGURATION

NOx<400 mg/Nm3

2008-2009DESIGN AND TEST OF

“ENHANCED” CONFIGURATIONNOx<200 mg/Nm3

2011-2013DESIGN AND TEST OF

“INNOVATIVE” CONFIGURATIONNOx<100 mg/Nm3

Starting

In cooperationwith Nuovo Pignone

and research departments

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With support of Regione Veneto

Uso: ristretto

The combustion system development

Full-load operation with steam injectionDry operation

0,6

1,0

1,4

1,8

2,0

NOx / NOx GN full load dry

Hydrogen

NG

On-Engine Results - NOx emission

Fusina present operation point

NOx<400mg/Nm3

55% thermal input from H2(80% H2 by vol.)


0,4

0,8

1,2

1,6

2,0


• In case of pure hydrogen operation, NOx emissions were about three times higher than

those produced with natural gas.

• Test at full load operation with steam injection confirmed the possibility to comply with

the NOx emission limit of 400 mg/Nm3@15%O2.

0 10 20 30 40 50 60 70 80 10090

Electric load [% of ISO base load]

0,2NOx / NOx GN full load dry

kg Steam / kg CH4 eq.


0,00 0,50 1,00 1,50 2,00 2,500,0

0,4

Research is ongoing in order to develop new combustors,able to further reduce NOx emissions

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Uso: ristretto

Conclusions

Reached goals

- Commissioning completion in

May 2010.

- 1000 h operation in 2010 with

no relevant issues.

Next milestones

- 4-5000 h/y of operation in

2011-13 with pure Hydrogen


First on-engine operation experiences at Fusina confirmed the feasibilityof a safe hydrogen utilization in a diffusive-combustor gas turbine,

with NOx emissions below 400 mg/Nm3@15%O2.

Enel and GE Oil & Gas-Nuovo Pignone are starting a new research projectto develop a combustor able to match the limit of

100 mg/Nm3@15%O2 of NOx emissions.

2011-13 with pure Hydrogen

or H2/NG mix.

- Combustion system upgrade

for NOx<100mg/Nm3 in 2013.

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Highlights

Total power: 16 MW

(12 MW gas turbine, 4 MW steam turbine)

5000 hours of operation per year

6500 tons per year of hydrogen used

60 million kWh per year of energy produced


20,000 families served

Over 17,000 tons per year of CO2 emissions avoided

from coal plant

Thank you for your attention!

Electricity from hydrogen - Amiando

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Transcript of Electricity from hydrogen - Amiando