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Copyright of Shell Global Solutions International B.V.

SHELL COAL GASIFICATION

Delivering performance in Chinese operations today,Developing technologyand deployment solutionsfor tomorrow

Jim VolkCommercial General Manager for Gasification, Americas

November 2010


DISCLAIMER

The companies in which Royal Dutch Shell plc directly or indirectly owns investments are separate entities. In this presentation the expressions "Shell", "Group" and "Shell Group" are sometimes used for convenience where references are made to Group companies in general. Likewise the words "we", "us" and "our" are also used to refer to Group companies in general or those who work for them. The expressions are also used where there is no purpose in identifying specific companies.

Shell Global Solutions is a network of independent technology companies in the Shell Group. In this presentation the expression ‘Shell Global Solutions’ is sometimes used for convenience where reference is made to these companies in general, or where nouseful purpose is served by identifying a particular company.

The information contained in this presentation contains forward-looking statements, that are subject to risk factors which may affect the outcome of the matters covered. None of Shell International B.V., any other Shell company and their respective officers, employees and agents represents the accuracy or completeness of the information set forth in this presentation and none of the foregoing shall be liable for any loss, cost, expense or damage (whether arising from negligence or otherwise) relating to the use of such information.

The information contained in this presentation is intended to be general in nature and must not be relied on as specific advice in connection with any decisions you may make. Shell Global Solutions is not liable for any action you may take as a result of you relying on such material or for any loss or damage suffered by you as a result of you taking this action. Furthermore, these materials do not in any way constitute an offer to provide specific services. Some services may not be available in certain countries or political subdivisions thereof.

Copyright © 2010 Shell Global Solutions International B.V. All copyright and other (intellectual property) rights in all text, images and other information contained in this presentation are the property of Shell Global Solutions International B.V. or other Shell companies. Permission should be sought from Shell International B.V. before any part of this presentation is reproduced, stored or transmitted by any means, electronic or mechanical including by photocopy, recording or information storage and retrieval system.

2November 2010


TOPICS

3

Performance in Operations

Technical Solutions

Enhancing Technology

November 2010


PERFORMANCE IN OPERATIONS1.0

November 2010 4


INCREASING CAPACITIES

Shell started its oil gasification technology in 1956

106 oil /gas gasification units in operation

Shell Coal Gasification Process started in 1976

November 2010 5

6 t/d150 t/d

250 t/d

1976Pilot Unit,

Amsterdam,The Netherlands

1978Demo Unit Harburg, Germany

1987SCGP-1Houstom

1993NUON IGCC 250MW

Buggenum,The Netherlands

Coal intake

t/d

2000 t/d

Hubei Shuanghau(900ton/day)

2000 OnwardsChinese Fertiliser

Licensees

Yueyang JV(2000 ton/day)

YTH, Datang(2700 ton/day)

Australia project(4000 ton/day)


SUCCESSFUL PERFORMANCE TEST RUNS IN CHINA

3 performance test runs successfully completed

4 sites accepted the plant performance without formal test run (either test done for similar design or plant operation satisfied owner)

1 underway, 3 in preparation

6November 2010


NEW AUTHORIZED VENDORS IN CHINA

3 for gasifier and SGC (Dongfang Boiler (Group) Co. Ltd., Suzhou Hailu Heavy Industry Co., Ltd, Wuxi Huaguang Boiler Co., Ltd)

2 for aeration device (Xi’an Baode and Beijing A&M)

1 for coal flow diverter valve (Hefei General), ongoing work to authorize a second

1 for local coal burner repair (YueyangFCC)

1for coal burner manufacturing (Shanghai 711)

3 for sluicing valves (SHK, Hongsheng and Antiware)

Apart from two critical equipment items (velocity and density meter), all other SCGP critical equipment can now be sourced in China.

November 2010 7


RELIABILITY IN CHINA: OVERVIEW SECOND WAVE

November 2010 8

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

110%

Ave

rage

ava

ilabi

lity

for

the

mon

th [%

]

Month

Reliability trend second-wave Chinese clients for past twelve months


PROVIDING TECHNICAL SOLUTIONS2.0

November 2010 9


SUPPORT EXAMPLE: HPHT FILTER OPERATIONS

Filter candles that had been in operation until 2008.

Life time of HPHT filters > 30 months

10November 2010

0

100

200

300

400

500

600

700

800

900

1000

longest run achieved

HPHT Life timedays


SUPPORT EXAMPLE: IMPROVE GASIFIER OPERATIONS

Operating on O2/C control mode at 100% oxygen load: Compared to Gasifier steam make control, amplitude of fluctuations in gasification temperature is more than

factor 2. Operating on Gasifier steam make control mode at 100% oxygen load:

Mean amplitude of fluctuations around average value of gasification temperature is ± 25 °C.

November 2010 11

Steam make control can lower the gasification temperature fluctuation significantly, smoothing operation conditions.

1 400

1 425

1 450

1 475

1 500

1 525

1 550

1 575

1 600

1 625

1 650

1 675

1 700

0 50 100 150 200 250

time [ min ]

Gas

ifica

tion

tem

prat

ure

[ °C

]

Gasification temperature - steam make control mode

Gasification temperature - (O2/coal) control mode

average = 1539 °C

average = 1473 °C


FREQUENT COAL SWITCHESAND CHANGES IN QUALITY CAN BE HANDLED

Coal and ash analysis are key to determine and manage the operating window.

November 2010 12

Difficult to operate

Stable operating window.


ENHANCING TECHNOLOGY3.0

November 2010 13


COMPARISON: SYNGAS COOLER LINE UP

14November 2010

Filter cake recycle

Dry

solids remova

l (U-

1500

)

Coal milling &

drying (U-

1100

)

Wet

scrubbing(U-

1600

)

Coal

Slag

Oxygen

Raw Syngas

BFW

GasificationSynga

s cooling

Fuelgas

Vent gas (CO2/N2)

Flux

Fly ash

Caustic (*)

Gasification Battery Limit

Pressurisatio

n &

feeding(U-

1200

)

(U-3000

)

Effluent water

treatmen

t(U-

Slag

removal(U-

1400

)

Utilities

(U-310

0 – U-

3600

)

LP N2

water (*)

LP steam (**)

Air

Stack gas

Moderator steam (**)

(U-1300

)

Stripper off-gas

9

Acid (*)

Flare gas (*)

LP N2

Note: (*) stream entering/leaving via utilities (**) internal stream, interfacing with utilities

Filter cake recycle

Dry

solids remova

l (U-

1500

)

Dry solids removal

(U-1500)

Coal milling &

drying (U-

1100

)

Coal milling

& drying

(U-1100)Wet

scrubbing(U-

1600

)

Wet scrubbing(U-1600)

Coal

Slag

Raw Syngas

BFW

MP Saturated Steam

GasificationSyngas

cooling

Flux

Fly ash

Caustic (*)


Coal

Pressurisation

& feeding(U-1200)

(U-3000

)

N2/CO2 system

(U- 3000)

Effluent water

treatmen

t(U-

Primary water

treatment(U-1700)

Slag

removal(U-

1400

)

Slag removal

(U-1400)

Blowdown

condensate

(**)

Utilities

(U-3100 – U-3600)

LP N2

HP/VHP N2/CO2

Process water (*)

LP steam (**)

Air

Stack gas


(U-1300)

Stripper off-gas

Acid (*)

Flare gas (*)

VHP N2


COMPARISON: (TOP) WATER QUENCH

15November 2010

Filter cake recycle

Coal milling &

drying (U-

1100

)

Wet

scrubbing(U-

1600

)

Coal

Slag

Oxygen

Raw Syngas

GasificationSynga

s

Vent gas (N2/CO2)

Flux

Caustic (*)


Pressurisatio

n &

feeding(U-

1200

)

(U-3000

)

Effluent water

treatmen

t(U-

Slag

removal(U-

1400

)

(**)

Utilities

(U-310

0 – U-

3600

)

water (*)

LP steam (**)

Air

Stack gas


(U-1300

)

Stripper off-gas

Acid (*)

LP N2

Note: (*) stream entering/leaving via utilities (**) internal stream, interfacing with utilities

Slagfinesrecycle

Coal milling &

drying (U-

1100

)

Coal milling

& drying

(U-1100)Wet

scrubbing(U-

1600

)


Coal

Slag

Raw Syngas

BFW

MP Saturated Steam

Gasification

Vent gas (N2/CO2)

Flux

Caustic (*)


Coal

Pressurisation

& feeding(U-1200)

(U-3000

)

N2/CO2 system

(U- 3000)

Effluent water

treatmen

t(U-

Primary water

treatment(U-1700)

Slag

removal(U-

1400

)

Slag removal

(U-1400)

Blowdown

condensate

(**)

Utilities

(U-3100 – U-3600)

Process water (*)

LP steam (**)

Air

Stack gas


(U-1300)

Stripper off-gas

Acid (*)

LP N2

Water

quench

Flyash cake


COMPARISON: (BOTTOM) WATER QUENCH

16November 2010

Coal milling &

drying (U-

1100

)

Wet

scrubbing(U-

1600

)

Coal

Sl ag

Oxygen

Raw SyngasFuel gas

Vent gas (N2/ CO2)

Fl ux

Gasif icat ion Bat t ery Limit

Pressurisatio

n &

feeding(U-

1200

)

(U-3000

)

Ef f l uent wat er

treatmen

t(U-

Slag

removal(U-

1400

)

(* * )

Utilities

(U-310

0 – U-

3600

)

LP N2

wat er (* )

LP st eam (* * )

Moderat or

st eam (* * )

Acid (* )

LP N2

Fresh wat er

Pl ant

air

CW suppl y

CW ret urn

Not e: (* ) st ream ent ering/ l eaving via ut il it ies (* * ) int ernal st ream, int erf acing wit h ut il it ies

Coal milling &

drying (U-

1100

)

Coal milling

& drying

(U-1100)

Wet

scrubbing(U-

1600

)


Coal

Sl ag

Raw Syngas

BFW

MP Sat urat ed

St eam

Fl ux

Caust ic (* )

Gasif icat ion Bat t ery Limit

Coal

Pressurisation

& feeding(U-1200)

(U-3000

)

N2/CO2 system

(U- 3000)

Ef f l uent wat er

treatmen

t(U-

Primary water

treatment(U-1700)

Slag

removal(U-

1400

)

Slag removal

(U-

1400)

Bl owdown

condensat e

(* * )

Utilities

(U-3100 – U-3600)

VHP/ HP

CO2/ N2

Process

LP st eam (* * )

Air

St ack gas

St ripper Of f Gas

Acid (* )

LP N2

Fresh wat er

Pl ant

air

CW suppl y

CW ret urnVHP N2

Fl yash

cake

Vent gas nit rogen

Gasification

(U-1300)

Water

quench


44.143.1

40.6 40.6

47.6

40

41

42

43

44

45

46

47

48

49

Effic

ienc

y IG

CC [%

LHV

]

1st shift drop ~3.5%p (utility-efficient WGS )

2nd drop ~1%p (advanced Acid Gas Removal)

3rd drop ~2.5%p (CO2 compression )

4th drop ~ 0%p (TIT –0 °C)

LHV Efficiency Drop < 7 %points; 40% barrier can be broken!

IGCC + 90% CCS – USING TODAY’S TECHNOLOGY

17November 2010


OPERATING MODE OF THE LIANXINLOW-STEAM SHIFT CATALYST

Technology proven in operation in China in syngas application for 3 years+ (still on first catalyst fill), over 20 plants in operation in total

The shift reaction is slightly exothermic. In standard sour shift catalysts, the heat generated is cooled away by excess steam.

The Lianxin QDB-04 catalyst is operated under low-steam conditions, thus limiting the exotherm generated. The catalysts has special promoters which suppress coking.

The highly exothermic methanation reaction is suppressed by applying a high space velocity

18November 2010


DIRECT THIOPAQTM COMPARED TO INDIRECT THIOPAQTM

Today’s technology: Indirect THIOPAQTM syngas treating

Today’s +1 technology: Direct THIOPAQTM syngas treating

19November 2010

H2SOUR SHIFT

H2S removal

GT

SulphurTHIOPAQTM

PowerRaw Syngas

CO2removal

Acid GasCO2

Sour Water

Raw Syngas THIOPAQTM

GTCO2removal

Power

H2

CO2

Sulphur

SOUR SHIFT

Sour Water


THE THIOPAQTM PROCESS FIGURES AND TIMELINE

20

Cost reductions potential:

5-6 % on total capex

25-30 % on treating line up capex

Significant opex savings – case dependent

Increase in IGCC plant efficiency of 0.5 – 1.5%

The optimal application for THIOPAQTM: Sulphur capacity range of 0 – 50 t/sd, to be extended to150 t/sd in the future

Demonstration in syngas line up planned for 2011, prior to final market roll-out.

November 2010

Thiobacillus


GASIFICATION

21November 2010

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