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Cooling
Towers
Flare
Derricks
Coal Barn
Control/Admin
Bldg
Combined
Cycle
Coal
Preparation
Gasifiers,
Syngas
Coolers, PCDsProcess Air
Compressors
Water
Treatment
Bldg
CO2 /Sulfur
Removal
Area
Emergency
Crushed Coal
StackCoal
Loading
Hoppers
Sulfuric
Acid
Production
Overview of the Kemper County IGCC Project UsingTranspor
t Integrated Gasification (TRIGTM)
RECS Program at the NCCC
June 09, 2011
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Kemper County IGCC Project Overview 2x1 Integrated Gasification Combined Cycle (IGCC)
– 2 TRansport Integrated Gasifiers (TRIG™) – 2 Siemens SGT6 - 5000F CTs – 1 Toshiba Steam Turbine (Tandem Compound Double Flow) – 582 MW peak and 524 MW on syngas – Heat Rate 11,708 Btu/kWh (29.5% HHV Efficiency w/ CO2
control and 40+% moisture coal) – Selexol for H2S and CO2 removal – 65+% CO2 capture (~800 lb/mWh emission rate)
– Mine Mouth Lignite Owner & Operator: Mississippi Power Over $2 billion capital investment Commercial Operating Date: May 2014 Use treated effluent from Meridian as makeup water By-Products (TPY)
– ~3,000,000 - Carbon dioxide used for EOR – ~135,000 - Sulfuric acid – ~20,000 - Ammonia
Plant Site
Plant Site
Kemper Lignite CompositionAverage Min Max
Heat Content btu/lb 5,290 4,765 5,870
Moisture % 45.5 42 50Ash % 12.0 8.6 17
Sulfur % 1.0 0.35 1.7
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Kemper CountyIGCC Project Map
~ 70 miles transmission
~ 60 miles CO2 pipeline (for EOR)
~5 miles natural gas pipeline
~31,000 acre mine site
~2,900 acres plant site
~ 30 miles treated effluent line
Plant Site
New CO2
Pipeline
Meridian
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Visual Comparison of Main Gasifier Types(Not to Scale)
GE Conoco TRIG TM Shell SiemensSyngas
Coal
Oxygen
Coal
MHI
Oxygen-blown
Oxygen-blown
Burner-type, slagging
Burner- type, slagging No-burner Non-slagging
No-burner Non-slagging
-blown
Air- -blownor O2
Coal
Air
Syngas
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Development of the TRIG™ for Power and
Chemical ProductionTRIGTM Leverages Long History of KBR Fluid Catalytic Cracking (FCC) Expertise
Late
30's
1942
1951
Early
1960's
1976
1980's 1990 1996 1996 China 2011 USA 2014
First
Commercial
FCC Unit
for Exxon
Orthoflow™
A Design
Orthoflow™
C Design
Resid
FCCs
Orthoflow™
F Design
Design Based
on FCC
Technology
Pilot Plant
Tech Center
Grand Forks, ND
2,600 Hours Test
Run
PSDF at
Wilsonville, AL.
>14,600 hrs in
gasification
>2,200 hrs on
Mississippi Lignite
thru Dec ‘09
TRIGTM In Kemper
County, MS, USA &
Dong Guan, China
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TRIGTM Attributes / Advantages Simple, well established design
– Based on technology in use for 70 years
Either Air- or Oxygen-blown – Air for power
– Oxygen for liquid fuels and chemicals
High Reliability Design – Non-slagging design:
Provides 10-20 year refractory life,
Eliminates black water system
Provides non-fouling syngas cooler operation – No burners to fail and be replaced
– Dry dust removal eliminates gray water system
Lower Fuel Costs – Coarse, dry coal feed allows:
Fewer, lower power pulverizers, and
Less drying than other dry-feed gasifiers
– Cost-effective using high moisture, high-ash, low rank coals(PRB and lignite).
Excellent Environmental Performance – Lower water use compared to pulverized coal (PC)
– Excellent emissions performance
– Easier to permit compared to PC
– Lower cost carbon capture compared to PC
air/O2
steam
coal
s y n g a s
Presalter Cyclone
Mixing
Zone
Riser
Standpipe
Cyclone
Standpipe
J-leg
Startup
Burner
Seal Leg
syngas
ash
air/O2
steam
coal
s y n g a s
Presalter Cyclone
Mixing
Zone
Riser
Standpipe
Cyclone
Standpipe
J-leg
Startup
Burner
Seal Leg
syngas
ash
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Sour Syngas
From Gasifier
To Sulfuric
Acid
SteamCond
Syngas To
Turbine
Water Gas Shift
Reactors
Recycle Gas
Compressor
To Gasifier
H2S
Absorber
Acid Gas
Concentrator
H2S
Stripper
CW
Steam
CO2 Flash Tanks
CO2 Compression
And Drying
Product
CO2
Refrig.
Refrig.
CO2
Absorbers
Cond
Two Stages WGS
Selexol Physical SolventRefrigerated to 40°F
Carbon Capture: 65+%
CO2 Emissions: 800 lb CO2/MWh
Yield: >3 MM Tons/yr CO2
Kemper CO2 Capture Scheme
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Kemper County TRIGTM 3-D Perspective
Fluid Bed
Dryer System
Sulfuric Acid
Production
CO2 and H2S
Removal
Gas Turbines
HRSGsSteam Turbine
Air Compressors
HP Coal Feeders
Gasifiers (2)
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CO2 Compressors
CO2 Absorbers (6)
CO2 Flash Drums (8)
Process Air
Compressors
WGS Reactors
SyngasHumidifiers
COS Hydrolysis
NH3 Removal
Mercury Adsorbers
Sour Water/NH3 Recovery
System
H2S Absorbers (2)
AGR Regenerators
Crushed Coal
Silos
Coal Mills (6)
Back-pulseSurge Drums
Particulate Collection Device (PCD)
Dry Ash Filters (4)
Gasifiers (2)
Main Syngas Coolers (4)
Warehouse
Admin. Bldg.
Flare Derricks
Steam Turbine
Kemper County TRIGTM 3-D Perspective
HP Coal Feeders (12)
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Kemper County TRIGTM
(A Sense of Scale)
Water Gas Shift
(WGS) Reactors(12)WGS Recuperator
(2)WGS Reactor
Isolation Valves
High Temp Syngas
Recuperator (2)
Syngas Saturator/Scrubber
Recuperator (2)
6’ Person
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2009 2010 2012 2013 20142011
3rd 4th 1st 2nd 3rd 4th 1st 2nd 3rd 4th 1st 2nd 3rd 4th 1st 2nd 3rd1st 2nd 3rd 4th
Detail Design
GI General Contractor
Long Lead Procurement
Sitework & U/G
Piling/Caissons
Foundations
CC General Contractor
Startup
COD 5/1/2014
Engineer Procured
Kemper County IGCC Timeline & Milestones
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Kemper County IGCC Construction Update
Water Reservoir Area
Retention PondsSite Aerial Photo
3rd Quarter 2010 -
Site Preparation and Mass Earthwork
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Kemper County IGCC Construction Update
Storm Drains
Fire Protection PipingElectrical Duct Banks
1st Quarter 2011 –
Began Installation of Underground Electricaland Mechanical Systems
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Kemper County IGCC Construction Update2nd Quarter 2011 –
Deep Foundations/ Major Equipment FoundationInstallation/U/G Utilities
Steam Turbine Columns
130/230 Sumps
96” Circ. Water Pipe
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Kemper County IGCC Construction Update
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Kemper County IGCC Construction Update
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TRIGTM Attributes / Advantages Simple, well established design
– Based on technology in use for 70 years
Either Air- or Oxygen-blown – Air for power
– Oxygen for liquid fuels and chemicals
High Reliability Design – Non-slagging design:
Provides 10-20 year refractory life,
Eliminates black water system
Provides non-fouling syngas cooler operation – No burners to fail and be replaced
– Dry dust removal eliminates gray water system
Lower Fuel Costs – Coarse, dry coal feed allows:
Fewer, lower power pulverizers, and
Less drying than other dry-feed gasifiers
– Cost-effective using high moisture, high-ash, low rank coals(PRB and lignite).
Excellent Environmental Performance – Lower water use compared to pulverized coal (PC)
– Excellent emissions performance
– Easier to permit compared to PC
– Lower cost carbon capture compared to PC
air/O2
steam
coal
s y n g a s
Presalter Cyclone
Mixing
Zone
Riser
Standpipe
Cyclone
Standpipe
J-leg
Startup
Burner
Seal Leg
syngas
ash
air/O2
steam
coal
s y n g a s
Presalter Cyclone
Mixing
Zone
Riser
Standpipe
Cyclone
Standpipe
J-leg
Startup
Burner
Seal Leg
syngas
ash
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