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A preliminary evaluation of post-combustion CO2
capture in a CSIRO pilot plant using MEA at Loy Yang Power in Australia
Fourth International Conference on Clean Coal Technologies (CCT2009)Dresden, Germany, 18-21 May 2009
Yuli Artanto
Greetings…..
Safety First安全第Sûreté
Utamakan Selamatбезопасность
Contents
AIMS
RESULTS
PCC DEVELOPING BY CSIRO IN AUSTRALIA
EXPERIMENTAL PROGRAM
INTRODUCTION
FUTURE WORKS
Aims
•
To obtain practical experience with real flue gases from a lignite fired power plant
•
To test the performance of pilot plant under nominal conditions
•
To assess the effect of operational parameters alteration on the performance of CO2
absorption.
•
To compare the results with simulation calculations
Contents
INTRODUCTION
RESULTS
PCC DEVELOPING BY CSIRO IN AUSTRALIA
EXPERIMENTAL PROGRAM
AIMS
FUTURE WORKS
Introduction: Net Greenhouse Gas Emissions by Sector in 2006
AUSTRALIAVICTORIA
52.30%
14.40%
6.30%
5.20%
16.40%
2.50%
3.00%
Stationary Energy TransportFugitive Emissions Industrial ProcessesAgriculture Land use, Land-use change and forestryWaste
66.40%16.30%
1.60%
2.00%
12.40%
-3.50%
3.50%
`
Total:122 Mt CO2
e
Source: http://www.epa.vic.gov.au/greenhouse/australia-victoria-emissions.asp
Total:550 Mt CO2
e
Trend of Net GHG Emissions from Stationary Energy in Victoria
Source: http://www.epa.vic.gov.au/greenhouse/australia-victoria-emissions.asp
0
10
20
30
40
50
60
70
80
90
1990 2000 2006
Year
Net
GH
G e
miss
ions
(M
t C
O2-
e)
Brown coal in Victoria
• The Latrobe Valley situated in Victoria has a brown coal hub
• 33 billion tonnes easily accessible (400 billion tonnes in reserve)
• 500 years of supply at current rates of production• Low in ash (incl. heavy metals), sulfur
and
nitrogen –
but has a higher moisture content• Foreseable
feedstock –
generate electricity, liquid
(transportation) and solid (export) fuels and chemicals
Electricity Generated in Victoria
Picture from http://www.loyyangpower.com.au/documents/corporate-brochure/lypcorp.pdf
94% of electricity is generated from power stations fuelled with lignite/brown coals
Conventional power plantsin Victoria emit about 1,225 kg of CO2
/MWh
Geosequestration
potential in Victoria
Potential capacity of Gippsland Basin deep saline aquifers : 33,300 MT (630 TCF or 275 years of Victorian emissions)
Succinct distance for production, CCS and consumption of electricity
Contents
PCC DEVELOPING BY CSIRO IN AUSTRALIA
RESULTS
INTRODUCTIONS
EXPERIMENTAL PROGRAM
AIMS
FUTURE WORKS
Post Combustion CO2
capture pilot plant developed by CSIRO in Australia
Ammonia –black coal
Amines –brown coal
Amines –black coal
Latrobe Valley Post-Combustion Capture Project
Energy Technology Innovation Strategy (ETIS)
Pilot plant scale : 150 kg/h
Design CO2
capture : 90%
Solvent base : MEA 30%
Commissioning : July 2008
Stripper
Absorber column 2
Caustic WashColumn
Solvent Feed Tank
Absorber column 1
Plant SpecificationAbsorbers:
-
200DN stainless steel pipe (211 mm ID)
-
The column height: 9.4 m
-
Total packing height: 3.7 m (2 x 1.35 m)
Stripper:-
150DN stainless steel pipe (161 mm ID)
-
Stripper height : 6.9 m
-
Packing height: 3.9 m.
Pall ring packing, (i) packing size in every section is 160 mm, (ii) specific area of packing is 338 m2/m3
and (iii) packing factor (1/m) is 306.
Contents
EXPERIMENTAL PROGRAM
RESULTS
PCC DEVELOPING BY CSIRO IN AUSTRALIA
INTRODUCTION
AIMS
FUTURE WORKS
PCC Loy Yang Research &Development Path
2008 2009 2010
01
02
03Performance of pilot plant at different conditions using MEA based solvent
Installation andcommissioning
04
06
05
07Performance of pilot plant at different conditions using blended & novel solvent
2011
Applicability study for integration between PCC and (New/exisiting) power station
research & development
Experimental Program FY2008/2009
Campaign 01
•
Handling the plant system correctly
•
Fine tune nominal conditions using 30% MEA and real flue gas –
as base line
Campaign 02
•
The effect of changing operational conditions:
flue gas rate (at constant gas/solvent ratio), solvent flow rate, reboiler temperature, stripper pressure
Experimental Program FY2008/2009
Campaign 03•
The effect of changing absorber temperature
•
Temperature profile of absorber
Nominal conditions for fine-tuning testMEA concentration: 30%
Flue gas rate: 150 m3/h
Solvent rate: 0.34 m3/h Absorber inlet Temp.: 40°CStripper Press.: ~0.6 bar(g) Reboiler Temp.: ~116°C
Loy Yang Pilot Plant (150 kgCO2
/hr) Simplified Process Flow Diagram
P-9
Steam
Condensate
Reboiler (plate type)
Stripper
Absorber 1Absorber 2
Solvent make-up
Tank
Make-up
Flue gas
Treated flue gas
CO2 product
Make-up NaOH
Spent NaOH recycled
Knock-out drum
Blower
Condensates and Particulates
Flue Gas pre-treatment
Gas sampling point
Liquid sampling point
Three different approaches to determine %CO2 recovery
Liquid analysis based:
2)column (toABSnt pretreatmeafter 2
1column ABSenter solvent lean in 22column ABS fromsolvent rich in 2
2)column (toABSnt pretreatmeafter 2
stripper from produced2
2)column (toABSnt pretreatmeafter 2
fluegas in treated22)column (toABSnt pretreatmeafter 2
x100
x100
x100
COCOCO
COCO
COCOCO
−
−
CO2 product (from stripper) based:
Treated flue gas based:
Typical flue gas conditions
INLET TO ABS COLUMN 2
TEMPERATURE 150 –
170 35 –
45
H2
O (%v-wet) 20 –
22 6 –
9
CO2 (%v-wet) 10 –
11 11 –
12
O2 (%v-wet) 4 –
5 5 –
6
SO2 (ppmv-wet) 149 –
152 4 –
5
NOX (ppm-wet) 184 –
186 194 –
195
Contents
RESULTS
INTRODUCTION
PCC DEVELOPING BY CSIRO IN AUSTRALIA
EXPERIMENTAL PROGRAM
AIMS
FUTURE WORKS
CO2
balance
Flue gas = 125 m3/h, solvent flow = 0.34 m3/h
0
5
10
15
20
25
30
12:28:48 12:47:31 13:06:14 13:24:58 13:43:41 14:02:24 14:21:07 14:39:50 14:58:34Time
CO
2 mas
s flo
w (k
g/h)
-40%
-30%
-20%
-10%
0%
10%
20%
30%
40%
50%
60%
70%
Bal
ance
CO2 feed CO2 product CO2 (treated flue gas) CO2 balance
Effect of L/G changes on CO2
recovery
50
60
70
80
90
100
1.5 2.0 2.5 3.0 3.5 4.0 4.5
L/G (L/Nm³)
CO
2 rec
over
y (%
)
Liquid analysis CO2 product based treated flue gas based
Effect of L/G changes on CO2
recovery
50
60
70
80
90
100
1.5 2.0 2.5 3.0 3.5 4.0 4.5
L/G (L/Nm³)
CO
2 rec
over
y (%
)
Effect of L/G changes on heat duty
4.0
4.5
5.0
5.5
6.0
1.5 2.0 2.5 3.0 3.5 4.0 4.5
L/G (L/Nm³)
Reb
oile
r hea
t dut
y (M
J/kg
CO
2)
(75%)
(72%)(60%)
(69%)
(81%)
(83%)
(83%)
(84%)
(90%)
(89%)
0
5
10
15
20
25
1.5 2.0 2.5 3.0 3.5 4.0 4.5
L/G (L/Nm³)
CO
2 rec
over
ed (k
g/h)
ABS column 1 ABS column 2 Total
Comparison of CO2
absorbed between ABS columns 1 and 2
Simulation based on WinSim
Design II for Windows
1005 1001
1901
1902
150119 15
16 2101
2105
180118
21
170117
1602
1802
20013001
4001
5002
6001 7001
5001
6002
2505
20 30
40
50
31
25
70
60
CO2 product
Stripper
Absorber 2 Absorber 1
Water WashColumn
FLUEGAS
Flue Gaspretreatment
1601
10
2002110111
2501
13
3002120112
4002 3101
1301
26
2702
2701 2605
2601
27
28
232301
2302
Loy Yang Post Combustion Capture Pilot Plant - CSIRO
Less CO2-contained f lue gas
2801
Temperature profiles in ABS 1
30
34
38
42
46
50
54
58
62
66
0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3 3.3 3.6
Relative distance from the bottom (m)
Tem
pera
ture
(°C
) 10:03:0011:00:0012:00:0012:30:0013:00:0013:30:0014:12:30Simulation
Gas rate= 150 m3/hSolvent rate= 0.34 m3/h
ABS 1: captured 15.4 kg CO2
/h
30
34
38
42
46
50
54
58
62
66
0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3 3.3 3.6
Relative distance from the bottom (m)
Tem
pera
ture
(°C
) 10:03:0011:00:0012:00:0012:30:0013:00:0013:30:0014:12:30Simulation
Temperature profiles in ABS 2
Gas rate= 150 m3/hSolvent rate= 0.34 m3/h
ABS 2: captured 4.3 kg CO2
/h
CO2
recovery between WinSim simulation and Pilot plant experiment
L/G (L/Nm3)
Simulation Experiment
ABS 1 ABS 2 ABS 1 ABS 2
2.1 11.8 8.2 11.2 3.6
2.4 12.6 7.5 13.5 3.2
2.7 13.1 10.3 15.4 4.3
90
94
98
102
106
110
114
118
0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3 3.3 3.6 3.9
Relative distance from the bottom (m)
Tem
pera
ture
(°C
) 10:03:0011:00:0012:00:0012:30:0013:00:0013:30:0014:12:30Simulation-double Abs
Temperature profiles in Stripper
Gas rate= 150 m3/hSolvent rate= 0.34 m3/h
Contents
FUTURE WORKS
INTRODUCTION
PCC DEVELOPING BY CSIRO IN AUSTRALIA
EXPERIMENTAL PROGRAM
AIMS
RESULTS
Future Works
Campaign 04 & 05
•
Similar to campaigns 1-2 and 3, but using blended solvent
Campaign 06 & 07
•
CO2
concentration profile in Absorbers
•
Trials with developmental solvent from semi- commercial scale
•
Contaminants in treated flue gas emissions and product degradation
Conclusion
•
Pilot plant trials run successfully and CO2
balance is satisfactory
•
A minimum reboiler heat duty versus L/G ratio is observed
•
Increasing L/G ratio improve CO2
recovery
•
Simulation and experiment show similar trend in temperature profiles of the stripper
•
Simulation gives higher CO2
recovery than that of pilot plant
Acknowledgements
Energy Technology Innovation Strategy (ETIS)
Paul Feron (CSIRO PCC Stream Manager), Aaron Cottrell (Head of pilot plant operations) and Moetaz Attalla (Head of solvent development)
Loy Yang Pilot Plant:
Erik Meuleman (Project Manager), James Jansen
(Plant Engineer), Mick Osborn (Assistant Plant Engineer) and Pauline Pearson (Experimental Chemist)
Leigh Wardhaugh, Scott Morgan, Andrew Allport, James McGregor, Rob Rowland, Terence Chow, Ashleigh Cousins and Doug Palfreyman