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Gasification Technologies 2004

The new gasification project atThe new gasification project at

Eni Sannazzaro Refinery and its integration with aEni Sannazzaro Refinery and its integration with a

1050 MWe power plant1050 MWe power plant

G.CollodiG.Collodi, , D.CamozziD.Camozzi –– SnamprogettiSnamprogetti

A.CavannaA.Cavanna –– Eni Refining & MarketingEni Refining & Marketing

Thanks to: A.R.Carta-EniR&M – J.Wolff-Shell

The Parent Company

Snam Rete Gas S.p.A. EniPower S.p.A.Italgas S.p.A. Snamprogetti S.p.A.(*) Saipem S.p.A. (*)

Exploration & Production Gas & Power Refining & Marketing

Companies operating in Engineering and Oilfield Services respectively

(*)Divisions Subsidiaries

Eni R&M Refineries in Italy

Sannazzaro

500,000 bpd capacity(1/4 of national cap.)

ENI R&MEniPower250 MWe

38000 Nm3/h H2VVR(TAR)

Snamprogetti/Ansaldo

Gela

Milazzo*

Taranto

Venezia

Livorno

Priolo*

Schematic Complex Block Diagram

Ansaldo-SiemensV94-3A.2(400 MW)

Ansaldo-SiemensV94-3A.2(400 MW)

Ansaldo-SiemensV94-2K

(250 MW)

EniPower

EniRefining & Marketing

Eni Gas & Power

Gasification plant50 t/h Tar

H2

Syngas

Natural gas (12.5 km new pipeline)

Sannazzaro Refinery Plot Plan

MAIN ENTRANCE

D

ENIPOWER

AIR LIQUIDE

GASIFICATIONISLAND

Eni R&M-SannazzaroProcess Block Diagram

SOOT WATERFILTRATION

AND SWS

AIRSEPARATIONUNIT (o.b.l.)

SULPHURRECOVERY(Refinery)

SHELL GASIFICATIONPROCESS

(SGP)GAS COOLING

AND COSHYDROLYSIS

SULPHURREMOVAL

AIR

FEEDSTOCK(VISBREAKER TAR)

HYDROGENSULPHIDE

OXYGEN

SULPHUR

HP STEAM

NITROGEN

BFW HYDROGENRECOVERY

COMBINEDCYCLE

UNIT(EniPower)

HYDROGEN

POWER

SOOT ASHREMOVAL UNIT

(SARU)

SOOTWATER

(SPENT CARBON)

CARBON DIOXIDE EXPORT

WATER DISCHARGE FILTER CAKE

CARBONYLREMOVAL

METAL ASH

FLUE GAS TO REFINERY

SYNGAS

(NAT.GAS)

STEAM EXPORT

Residuefrom BL

Oxygenfrom BL

SuperheatedHP steam

HP BFWfrom BL

Raw syngas totreating section

To flashvessel

HPC

To secondstring, B

Raw syngasfrom

string 2

Superheated HPsteam from

string 2

Feed PumpJ-30-101

syngas cooler

steam superheater

C-30-102

SootQuenchE-30-102

SootSeparatorF-30-104

SootScrubberE-30-101

OxygenHeater

C-30-101

FeedVessel

F-30-001 GasifierD-30-101 Scrubber Slurry

PumpJ-30-103A/B

Scrubbercooler

C-30-153

QuenchNozzle FilterF-30-103A/B

Quench watercooler

C-30-152fromfilter

FeedpreheaterC-30-001

fromfilter

Economiser

F-30-101trim

coolerC-30-151

C-30-103/4

Shell Gasification Process

Gasification Area

Slurry Filtration Area

Eni R&M-SannazzaroProcess Block Diagram

SOOT WATERFILTRATION

AND SWS

AIRSEPARATIONUNIT (o.b.l.)

SULPHURRECOVERY(Refinery)

SHELL GASIFICATIONPROCESS

(SGP)GAS COOLING

AND COSHYDROLYSIS

SULPHURREMOVAL

AIR

FEEDSTOCK(VISBREAKER TAR)

HYDROGENSULPHIDE

OXYGEN

SULPHUR

HP STEAM

NITROGEN

BFW HYDROGENRECOVERY

COMBINEDCYCLE

UNIT(EniPower)

HYDROGEN

POWER

SOOT ASHREMOVAL UNIT

(SARU)

SOOTWATER

(SPENT CARBON)

CARBON DIOXIDE EXPORT

WATER DISCHARGE FILTER CAKE

CARBONYLREMOVAL

METAL ASH

FLUE GAS TO REFINERY

SYNGAS

(NAT.GAS)

STEAM EXPORT

Sulphur Removal (MDEA) Area

Carbonyls Removal Area

Overall Performances

TarData on dry basis

Design Feed

Carbon %wt 85.73

Hydrogen %wt 9.05

Sulphur %wt 3.54

HHV (* = calculated) MJ/kg 41.28

LHV (* = calculated) MJ/kg 39.30

~400 GCal/h@ 3700 kcal/kg

Syngas

~280 GCal/h@ 2800 kcal/kg+ 38000 Nm3/h H2Feed = 2 x 25 t/h

Refinery

CCUPPUSYNGAS

HPS

TAR

CW

AC

ID G

ASES

BD

MPS

DW BD

PPU CCU

Integration

HYD

RO

GEN

TAIL G

AS

FUELG

AS

(FIRE WATER, IW, WATER TREAT., IA, SIGNAL EXCH., etc.)

Status of the Project

• July’03-July’04: All EniPower groups tested with natural gas

• All EniPower groups are running at full load with natural gas

• August’04: Construction progress of gasification = 35%

• 2nd half ’05: Syngas production (expected)

Thank you