the enel’s ccs projects · 2011-02-07 · demo main features phase 5 - post-combustion demo plant...

The Enel’s CCS projects

Pietro Barbucci

Enel - Engineering & Innovation Division

“2nd Session of the UNECE Ad Hoc Group of Experts on Cleaner Electricity

Production from Coal and Other Fossil Fuels”

Geneva, 18th november 2008

The Enel group

Total installed capacity: 83 GW

Total net production: 187 TWh


Why

� Enel shares the views expressed by the European Institutions and the

Zero Emission Fossil Fuel Power Plants Technology Platform that:

� Fossil fuels will continue to have a primary role for electricity

generation in the decades to come

� Contribution of coal is essential for the security of supply

� Only the implementation of CCS technologies will allow to make the

continued use of fossil fuels compatible with the objectives to reduce

the GHG emissions in the atmosphere

� In Italy Enel plans to built 5000

MWe clean coal capacity,

substituting existing oil fired or

NG fired steam cycles

Clean coal plant characteristics:

� Closed coal management

system

� η = 45%

� extremely low emission

levels

Torrevaldaliga Nord Power Plant (3 units, 2000 MWe)

First unit in service: Autumn 2008

Carbon Capture and Sequestration (CCS)

Why

� These assets need to be preserved in the carbon constrained scenario

CCS retrofit technologies required


How

Therefore Enel has decided to take the lead in the development of CCS

technologies by:

� Promoting two demo projects:

»» ENEL CCS1ENEL CCS1 Post-combustion capture and storage demo project

»» ENEL CCS2ENEL CCS2 Oxy-coal combustion project

� Developing knowledge and looking for cooperation in the area of pre-

combustion technology

» Power from Hydrogen & Zero Emission IGCC

Post-combustion capture

and storage demo project

Enel CCS1Enel CCS1

Post-combustion capture and storage demo project

Project goal

To retrofit one large size

coal fired unit with CO2

capture equipment and

start CO2 underground

storage by 2014

Enel CCS1Enel CCS1

Time schedule

Enel CCS1Enel CCS1

OperationDesign - construction

Design - construction Operation

Decision point

Activities in progress

Post-combustion capture and storage demo project

Unit 1

Unit 2Unit 3

Unit 4

Enel CCS1Enel CCS1

Phase 2 - CO2 capture pilot plant

Site of CO2

capturepilot plant

Brindisi coal firedpower plant

4 units x 660 MWe

Pilot plant general flow diagram

CO2 separation unit


Absorber

Flue gas tothe stack

cooling water

Flash

Cross Exchanger

Cross Exchanger

Separator

Reclaimer

cooling water

LP steam

Stripper

CO2

Reboiler

MP steam

Filte

rs

coolingwater

Condenser

Flue gas from WESP

Absorber

Flue gas tothe stack

cooling water

Flash

Cross Exchanger

Flash

Cross Exchanger

Flash

Cross Exchanger

Flash

Cross Exchanger

Flash

Cross Exchanger

Cross Exchanger

Separator

Reclaimer

cooling water

LP steam

Stripper

CO2

Reboiler

MP steam

Filte

rs

coolingwater

Condenser

Separator

Reclaimer

cooling water

LP steam

Stripper

CO2

Reboiler

MP steam

Filte

rs

coolingwater

Condenser

Separator

Reclaimer

cooling water

LP steam

Stripper

CO2

Reboiler

MP steam

Filte

rs

coolingwater

Condenser

Separator

Reclaimer

cooling water

LP steam

Stripper

CO2

Reboiler

MP steam

Filte

rs

coolingwater

Condenser

Flue gas from WESP

Raw gas Process main streams

700-800 t/hCooling water

6,5 t/hLow pressure steam

50 t/hMEA solution flow rate

(20%,w)

2,25 t/hCO2 removed

10.000 Nm3/hGas flow rate (wet)

< 2 mg/Nm3Particulate

< 1 ppmvSO3

< 40 mg/Nm3NO2

< 30 mg/Nm3SO2

50 °°°°C (max)Temperature


Plant specifications

Enel CCS1Enel CCS1

Plant lay-out

Project milestones

Oct 09Plant completion

Dec 08Start site works

Apr 08Contract award

Oct 07Deadline for bids

Jun 07Specification completed


Enel CCS1Enel CCS1

� Italy has theoretically a

significant potential for CO2

geological storage into deep

saline aquifers

� Studies are in progress to

evaluate in detail the storage

potential in areas A, B and C

that are the areas

surrounding possible sites for

the post-combustion capture

demo. Studies are carried out

by INGV, OGS and other

Italian geological Institutes

Phase 3 - Selection of the geological storage site

Enel CCS1Enel CCS1

A

B

C

MATILDE 1 well

Geological

Profile

Enel CCS1Enel CCS1

Phase 3 - Selection of the geological storage site

Study of Alto Lazio site (area A)

Demo main features

Phase 5 - Post-combustion demo plant

50 %% of flue gas treated

Pure storageCO2 value chain

To be decidedStorage location

Deep saline aquifer CO2 Storage solution

85%CO2 Capture rate

1,5 Mt/yStored CO2

Post Combustion Capture with Amine

CO2 Capture Tech

SC PCCPower Generation Tech

Bituminous coalPrimary fuel

660 MWePower generation

RetrofitType of Project

Enel CCS1Enel CCS1

Enel will candidate this project for

the “European Flagship Programme”

Oxy-coal combustion project

Enel CCS2Enel CCS2


Project goal

To build by 2016 a 320 MWe

zero emission coal fired

power plant based on a

pressurized oxy-combustion

technology already proved

at pilot scale

Enel CCS2Enel CCS2

Air

Separation

Unit

Steam Turbine

Generator

CO2 Compression Unit

Coal Handling

Flue Gas Clean-up

Combustor/Boliers

Unit


Enel CCS2Enel CCS2

Time schedule


Design - construction


Decision point

Activities in progress

Enel CCS2Enel CCS2


Phase 1 and 2

PreliminaryPreliminary design design

of full scale of full scale

combustorcombustor demodemo

Positive investment Positive investment

decisiondecision forfor PhasePhase 33

AprilApril 20082008

TestsTests usingusing coalcoal on on

the 5 the 5 MWthMWth

IsothermIsotherm pilot pilot plantplant..

ITEA facility in Gioia del Colle

Modelling forcombustor scale-up


Phase 3 - Full scale combustor demo

Technical data Milestones

Combustor power 48 MWt

Process pressure 10 bar

Fuel coal slurry

Boiler pressurized, new design

Oxygen cryogenic storage/VSA

Oxygen mass flow rate 400 t/d @ 90% purity

Steam generation 55 t/h @ 240 bar -

600°°°°C

Yearly operating hours 3000 h

Invest. decision Apr 08

Permitting compl. Dec 08

Ground breaking Feb 09

Assembling Dec 09

Commissioning Oct 10

Enel CCS2Enel CCS2

USC Boiler

Reactor

Oxygen Storage

Oxygen VPSA Plant

Handling coal-water slurry

Control Room

Ash separationsection

ExperimentalDeSOx


Phase 3 - Full scale combustor demo

Enel CCS2Enel CCS2

Enel CCS2Enel CCS2


Phase 3 – Full scale combustor demo

Brindisi coal firedpower plant

4 units x 660 MWeSite

of full scale combustor

demo

Power from Hydrogen

&

Zero Emission IGCC

Power from Hydrogen

The Fusina hydrogen power plant

Petrochemical area

Fusinapower plant

H2 piping

GT order Mar 07

Combustor tests Sep 07

Start site works Dec 07

Plant completion Sep 09

A 12 MWe combined cycle fed by hydrogen produced by petrochemical

industries

Project milestones

Enel GEM - AT Ricerca

Test Rig

Internal view of the GT GE10 STD combustion chamber

Power from Hydrogen


GT combustor tests at Sesta facility

Enel GEM - AT Ricerca

Power from Hydrogen


NOx emissions with steam injection

Results from the GE10 combustor tests

0

100

200

300

400

500

600

700

0,0 0,5 1,0 1,5 2,0 2,5 3,0 3,5

Steam / Fuel

NO

x (p

pm

15%

O2)

Hydrogen

Natural Gas

Steam Hydrogen Mixture

Power from Hydrogen

Works in progress at the site


Enel initiatives

� Enel is partner of:

� DYNAMIS, a project funded under the 6th FP, for a pre-

engineering study of the European ZEIGCC

� DECARBit, a project funded under the 7th FP, focused on high-

potential, cost-efficient advanced capture techniques in pre-

combustion schemes

� Enel is looking for cooperation opportunities in demonstrating Zero

Emission IGCC technology.

Zero Emission IGCC

P1

LegendaLegenda

P1 = Post combustion capture pilot

P2 = Oxy-combustion pilot

P3 = H2 CC pilot

Possible sites for post-combustion

demo

Areas under study for the

evaluation of CO2 storage potential

P3

P2

Summary of Enel’s initiatives on CCS

Thank you

for your kind attention

the enel’s ccs projects · 2011-02-07 · demo main features phase 5 - post-combustion demo plant...

Documents